OSMBuildings.js

!function(){var Qolor=function(){var 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t(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+6*(t-e)*n:n<.5?t:n<2/3?e+(t-e)*(2/3-n)*6:e}function n(e,t){if(void 0!==e)return Math.min(t,Math.max(0,e||0))}var r=function(e,t,r,i){this.r=n(e,1),this.g=n(t,1),this.b=n(r,1),this.a=n(i,1)||1};return r.parse=function(t){if("string"==typeof t){var n;if(t=t.toLowerCase(),n=(t=e[t]||t).match(/^#?(\w{2})(\w{2})(\w{2})$/))return new r(parseInt(n[1],16)/255,parseInt(n[2],16)/255,parseInt(n[3],16)/255);if(n=t.match(/^#?(\w)(\w)(\w)$/))return new r(parseInt(n[1]+n[1],16)/255,parseInt(n[2]+n[2],16)/255,parseInt(n[3]+n[3],16)/255);if(n=t.match(/rgba?\((\d+)\D+(\d+)\D+(\d+)(\D+([\d.]+))?\)/))return new r(parseFloat(n[1])/255,parseFloat(n[2])/255,parseFloat(n[3])/255,n[4]?parseFloat(n[5]):1)}return new r},r.fromHSL=function(e,t,n){var i=(new r).fromHSL(e,t,n);return i.a=a,i},r.prototype={isValid:function(){return void 0!==this.r&&void 0!==this.g&&void 0!==this.b},toHSL:function(){if(this.isValid()){var 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this.fromHSL(t.h,t.s*e,t.l)},lightness:function(e){var t=this.toHSL();return this.fromHSL(t.h,t.s,t.l*e)},clone:function(){return new r(this.r,this.g,this.b,this.a)}},r}();"object"==typeof module&&(module.exports=Qolor);var suncalc=function(){"use strict";var e=Math.PI,t=Math.sin,n=Math.cos,r=Math.tan,i=Math.asin,o=Math.atan2,a=e/180,s=864e5,l=2440588,u=2451545;function h(e){return function(e){return e.valueOf()/s-.5+l}(e)-u}var c=23.4397*a;function f(s){var l,u,h=function(n){return n+a*(1.9148*t(n)+.02*t(2*n)+3e-4*t(3*n))+102.9372*a+e}(function(e){return a*(357.5291+.98560028*e)}(s));return{dec:(l=h,u=0,i(t(u)*n(c)+n(u)*t(c)*t(l))),ra:function(e,i){return o(t(e)*n(c)-r(i)*t(c),n(e))}(h,0)}}return function(e,s,l){var u=a*-l,c=a*s,d=h(e),m=f(d),p=function(e,t){return a*(280.16+360.9856235*e)-t}(d,u)-m.ra;return{azimuth:function(e,i,a){return o(t(e),n(e)*t(i)-r(a)*n(i))}(p,c,m.dec),altitude:function(e,r,o){return i(t(r)*t(o)+n(r)*n(o)*n(e))}(p,c,m.dec)}}}();!function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s="./src/icons/triangulateSVG.js")}({"./node_modules/abs-svg-path/index.js":function(module,exports){eval("\nmodule.exports = absolutize\n\n/**\n * redefine `path` with absolute coordinates\n *\n * @param {Array} path\n * @return {Array}\n */\n\nfunction absolutize(path){\n\tvar startX = 0\n\tvar startY = 0\n\tvar x = 0\n\tvar y = 0\n\n\treturn path.map(function(seg){\n\t\tseg = seg.slice()\n\t\tvar type = seg[0]\n\t\tvar command = type.toUpperCase()\n\n\t\t// is relative\n\t\tif (type != command) {\n\t\t\tseg[0] = command\n\t\t\tswitch (type) {\n\t\t\t\tcase 'a':\n\t\t\t\t\tseg[6] += x\n\t\t\t\t\tseg[7] += y\n\t\t\t\t\tbreak\n\t\t\t\tcase 'v':\n\t\t\t\t\tseg[1] += y\n\t\t\t\t\tbreak\n\t\t\t\tcase 'h':\n\t\t\t\t\tseg[1] += x\n\t\t\t\t\tbreak\n\t\t\t\tdefault:\n\t\t\t\t\tfor (var i = 1; i < seg.length;) {\n\t\t\t\t\t\tseg[i++] += x\n\t\t\t\t\t\tseg[i++] += y\n\t\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// update cursor state\n\t\tswitch (command) {\n\t\t\tcase 'Z':\n\t\t\t\tx = startX\n\t\t\t\ty = startY\n\t\t\t\tbreak\n\t\t\tcase 'H':\n\t\t\t\tx = seg[1]\n\t\t\t\tbreak\n\t\t\tcase 'V':\n\t\t\t\ty = seg[1]\n\t\t\t\tbreak\n\t\t\tcase 'M':\n\t\t\t\tx = startX = seg[1]\n\t\t\t\ty = startY = seg[2]\n\t\t\t\tbreak\n\t\t\tdefault:\n\t\t\t\tx = seg[seg.length - 2]\n\t\t\t\ty = seg[seg.length - 1]\n\t\t}\n\n\t\treturn seg\n\t})\n}\n\n\n//# sourceURL=webpack:///./node_modules/abs-svg-path/index.js?")},"./node_modules/adaptive-bezier-curve/function.js":function(module,exports){eval("function clone(point) { //TODO: use gl-vec2 for this\n    return [point[0], point[1]]\n}\n\nfunction vec2(x, y) {\n    return [x, y]\n}\n\nmodule.exports = function createBezierBuilder(opt) {\n    opt = opt||{}\n\n    var RECURSION_LIMIT = typeof opt.recursion === 'number' ? opt.recursion : 8\n    var FLT_EPSILON = typeof opt.epsilon === 'number' ? opt.epsilon : 1.19209290e-7\n    var PATH_DISTANCE_EPSILON = typeof opt.pathEpsilon === 'number' ? opt.pathEpsilon : 1.0\n\n    var curve_angle_tolerance_epsilon = typeof opt.angleEpsilon === 'number' ? opt.angleEpsilon : 0.01\n    var m_angle_tolerance = opt.angleTolerance || 0\n    var m_cusp_limit = opt.cuspLimit || 0\n\n    return function bezierCurve(start, c1, c2, end, scale, points) {\n        if (!points)\n            points = []\n\n        scale = typeof scale === 'number' ? scale : 1.0\n        var distanceTolerance = PATH_DISTANCE_EPSILON / scale\n        distanceTolerance *= distanceTolerance\n        begin(start, c1, c2, end, points, distanceTolerance)\n        return points\n    }\n\n\n    ////// Based on:\n    ////// https://github.com/pelson/antigrain/blob/master/agg-2.4/src/agg_curves.cpp\n\n    function begin(start, c1, c2, end, points, distanceTolerance) {\n        points.push(clone(start))\n        var x1 = start[0],\n            y1 = start[1],\n            x2 = c1[0],\n            y2 = c1[1],\n            x3 = c2[0],\n            y3 = c2[1],\n            x4 = end[0],\n            y4 = end[1]\n        recursive(x1, y1, x2, y2, x3, y3, x4, y4, points, distanceTolerance, 0)\n        points.push(clone(end))\n    }\n\n    function recursive(x1, y1, x2, y2, x3, y3, x4, y4, points, distanceTolerance, level) {\n        if(level > RECURSION_LIMIT) \n            return\n\n        var pi = Math.PI\n\n        // Calculate all the mid-points of the line segments\n        //----------------------\n        var x12   = (x1 + x2) / 2\n        var y12   = (y1 + y2) / 2\n        var x23   = (x2 + x3) / 2\n        var y23   = (y2 + y3) / 2\n        var x34   = (x3 + x4) / 2\n        var y34   = (y3 + y4) / 2\n        var x123  = (x12 + x23) / 2\n        var y123  = (y12 + y23) / 2\n        var x234  = (x23 + x34) / 2\n        var y234  = (y23 + y34) / 2\n        var x1234 = (x123 + x234) / 2\n        var y1234 = (y123 + y234) / 2\n\n        if(level > 0) { // Enforce subdivision first time\n            // Try to approximate the full cubic curve by a single straight line\n            //------------------\n            var dx = x4-x1\n            var dy = y4-y1\n\n            var d2 = Math.abs((x2 - x4) * dy - (y2 - y4) * dx)\n            var d3 = Math.abs((x3 - x4) * dy - (y3 - y4) * dx)\n\n            var da1, da2\n\n            if(d2 > FLT_EPSILON && d3 > FLT_EPSILON) {\n                // Regular care\n                //-----------------\n                if((d2 + d3)*(d2 + d3) <= distanceTolerance * (dx*dx + dy*dy)) {\n                    // If the curvature doesn't exceed the distanceTolerance value\n                    // we tend to finish subdivisions.\n                    //----------------------\n                    if(m_angle_tolerance < curve_angle_tolerance_epsilon) {\n                        points.push(vec2(x1234, y1234))\n                        return\n                    }\n\n                    // Angle & Cusp Condition\n                    //----------------------\n                    var a23 = Math.atan2(y3 - y2, x3 - x2)\n                    da1 = Math.abs(a23 - Math.atan2(y2 - y1, x2 - x1))\n                    da2 = Math.abs(Math.atan2(y4 - y3, x4 - x3) - a23)\n                    if(da1 >= pi) da1 = 2*pi - da1\n                    if(da2 >= pi) da2 = 2*pi - da2\n\n                    if(da1 + da2 < m_angle_tolerance) {\n                        // Finally we can stop the recursion\n                        //----------------------\n                        points.push(vec2(x1234, y1234))\n                        return\n                    }\n\n                    if(m_cusp_limit !== 0.0) {\n                        if(da1 > m_cusp_limit) {\n                            points.push(vec2(x2, y2))\n                            return\n                        }\n\n                        if(da2 > m_cusp_limit) {\n                            points.push(vec2(x3, y3))\n                            return\n                        }\n                    }\n                }\n            }\n            else {\n                if(d2 > FLT_EPSILON) {\n                    // p1,p3,p4 are collinear, p2 is considerable\n                    //----------------------\n                    if(d2 * d2 <= distanceTolerance * (dx*dx + dy*dy)) {\n                        if(m_angle_tolerance < curve_angle_tolerance_epsilon) {\n                            points.push(vec2(x1234, y1234))\n                            return\n                        }\n\n                        // Angle Condition\n                        //----------------------\n                        da1 = Math.abs(Math.atan2(y3 - y2, x3 - x2) - Math.atan2(y2 - y1, x2 - x1))\n                        if(da1 >= pi) da1 = 2*pi - da1\n\n                        if(da1 < m_angle_tolerance) {\n                            points.push(vec2(x2, y2))\n                            points.push(vec2(x3, y3))\n                            return\n                        }\n\n                        if(m_cusp_limit !== 0.0) {\n                            if(da1 > m_cusp_limit) {\n                                points.push(vec2(x2, y2))\n                                return\n                            }\n                        }\n                    }\n                }\n                else if(d3 > FLT_EPSILON) {\n                    // p1,p2,p4 are collinear, p3 is considerable\n                    //----------------------\n                    if(d3 * d3 <= distanceTolerance * (dx*dx + dy*dy)) {\n                        if(m_angle_tolerance < curve_angle_tolerance_epsilon) {\n                            points.push(vec2(x1234, y1234))\n                            return\n                        }\n\n                        // Angle Condition\n                        //----------------------\n                        da1 = Math.abs(Math.atan2(y4 - y3, x4 - x3) - Math.atan2(y3 - y2, x3 - x2))\n                        if(da1 >= pi) da1 = 2*pi - da1\n\n                        if(da1 < m_angle_tolerance) {\n                            points.push(vec2(x2, y2))\n                            points.push(vec2(x3, y3))\n                            return\n                        }\n\n                        if(m_cusp_limit !== 0.0) {\n                            if(da1 > m_cusp_limit)\n                            {\n                                points.push(vec2(x3, y3))\n                                return\n                            }\n                        }\n                    }\n                }\n                else {\n                    // Collinear case\n                    //-----------------\n                    dx = x1234 - (x1 + x4) / 2\n                    dy = y1234 - (y1 + y4) / 2\n                    if(dx*dx + dy*dy <= distanceTolerance) {\n                        points.push(vec2(x1234, y1234))\n                        return\n                    }\n                }\n            }\n        }\n\n        // Continue subdivision\n        //----------------------\n        recursive(x1, y1, x12, y12, x123, y123, x1234, y1234, points, distanceTolerance, level + 1) \n        recursive(x1234, y1234, x234, y234, x34, y34, x4, y4, points, distanceTolerance, level + 1) \n    }\n}\n\n\n//# sourceURL=webpack:///./node_modules/adaptive-bezier-curve/function.js?")},"./node_modules/adaptive-bezier-curve/index.js":function(module,exports,__webpack_require__){eval('module.exports = __webpack_require__(/*! ./function */ "./node_modules/adaptive-bezier-curve/function.js")()\n\n//# sourceURL=webpack:///./node_modules/adaptive-bezier-curve/index.js?')},"./node_modules/normalize-svg-path/index.js":function(module,exports){eval("\nvar PI = Math.PI\nvar _120 = radians(120)\n\nmodule.exports = normalize\n\n/**\n * describe `path` in terms of cubic bézier \n * curves and move commands\n *\n * @param {Array} path\n * @return {Array}\n */\n\nfunction normalize(path){\n\t// init state\n\tvar prev\n\tvar result = []\n\tvar bezierX = 0\n\tvar bezierY = 0\n\tvar startX = 0\n\tvar startY = 0\n\tvar quadX = null\n\tvar quadY = null\n\tvar x = 0\n\tvar y = 0\n\n\tfor (var i = 0, len = path.length; i < len; i++) {\n\t\tvar seg = path[i]\n\t\tvar command = seg[0]\n\t\tswitch (command) {\n\t\t\tcase 'M':\n\t\t\t\tstartX = seg[1]\n\t\t\t\tstartY = seg[2]\n\t\t\t\tbreak\n\t\t\tcase 'A':\n\t\t\t\tseg = arc(x, y,seg[1],seg[2],radians(seg[3]),seg[4],seg[5],seg[6],seg[7])\n\t\t\t\t// split multi part\n\t\t\t\tseg.unshift('C')\n\t\t\t\tif (seg.length > 7) {\n\t\t\t\t\tresult.push(seg.splice(0, 7))\n\t\t\t\t\tseg.unshift('C')\n\t\t\t\t}\n\t\t\t\tbreak\n\t\t\tcase 'S':\n\t\t\t\t// default control point\n\t\t\t\tvar cx = x\n\t\t\t\tvar cy = y\n\t\t\t\tif (prev == 'C' || prev == 'S') {\n\t\t\t\t\tcx += cx - bezierX // reflect the previous command's control\n\t\t\t\t\tcy += cy - bezierY // point relative to the current point\n\t\t\t\t}\n\t\t\t\tseg = ['C', cx, cy, seg[1], seg[2], seg[3], seg[4]]\n\t\t\t\tbreak\n\t\t\tcase 'T':\n\t\t\t\tif (prev == 'Q' || prev == 'T') {\n\t\t\t\t\tquadX = x * 2 - quadX // as with 'S' reflect previous control point\n\t\t\t\t\tquadY = y * 2 - quadY\n\t\t\t\t} else {\n\t\t\t\t\tquadX = x\n\t\t\t\t\tquadY = y\n\t\t\t\t}\n\t\t\t\tseg = quadratic(x, y, quadX, quadY, seg[1], seg[2])\n\t\t\t\tbreak\n\t\t\tcase 'Q':\n\t\t\t\tquadX = seg[1]\n\t\t\t\tquadY = seg[2]\n\t\t\t\tseg = quadratic(x, y, seg[1], seg[2], seg[3], seg[4])\n\t\t\t\tbreak\n\t\t\tcase 'L':\n\t\t\t\tseg = line(x, y, seg[1], seg[2])\n\t\t\t\tbreak\n\t\t\tcase 'H':\n\t\t\t\tseg = line(x, y, seg[1], y)\n\t\t\t\tbreak\n\t\t\tcase 'V':\n\t\t\t\tseg = line(x, y, x, seg[1])\n\t\t\t\tbreak\n\t\t\tcase 'Z':\n\t\t\t\tseg = line(x, y, startX, startY)\n\t\t\t\tbreak\n\t\t}\n\n\t\t// update state\n\t\tprev = command\n\t\tx = seg[seg.length - 2]\n\t\ty = seg[seg.length - 1]\n\t\tif (seg.length > 4) {\n\t\t\tbezierX = seg[seg.length - 4]\n\t\t\tbezierY = seg[seg.length - 3]\n\t\t} else {\n\t\t\tbezierX = x\n\t\t\tbezierY = y\n\t\t}\n\t\tresult.push(seg)\n\t}\n\n\treturn result\n}\n\nfunction line(x1, y1, x2, y2){\n\treturn ['C', x1, y1, x2, y2, x2, y2]\n}\n\nfunction quadratic(x1, y1, cx, cy, x2, y2){\n\treturn [\n\t\t'C',\n\t\tx1/3 + (2/3) * cx,\n\t\ty1/3 + (2/3) * 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/ ry + (x1 + x2) / 2\n\t\tvar cy = k * -ry * x / rx + (y1 + y2) / 2\n\t\tvar f1 = Math.asin(((y1 - cy) / ry).toFixed(9))\n\t\tvar f2 = Math.asin(((y2 - cy) / ry).toFixed(9))\n\n\t\tf1 = x1 < cx ? 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\'+segment[0])\n        }\n    })\n    if (points.length>0)\n        paths.push(points)\n    return paths\n}\n\n//# sourceURL=webpack:///./node_modules/svg-path-contours/index.js?')},"./node_modules/vec2-copy/index.js":function(module,exports){eval("module.exports = function vec2Copy(out, a) {\n    out[0] = a[0]\n    out[1] = a[1]\n    return out\n}\n\n//# sourceURL=webpack:///./node_modules/vec2-copy/index.js?")},"./src/icons/triangulateSVG.js":function(module,exports,__webpack_require__){eval('// webpack src/icons/triangulateSVG.js -o lib/triangulateSVG.js --mode development\n\nconst parseSVGPath = __webpack_require__(/*! parse-svg-path */ "./node_modules/parse-svg-path/index.js");\nconst getPathContours = __webpack_require__(/*! svg-path-contours */ "./node_modules/svg-path-contours/index.js");\n\nfunction SVGtoPolygons (svg) {\n  const rx = /<path\\s+d="([^"]+)"/mg;\n\n  const res = [];\n  let match;\n  do {\n    match = rx.exec(svg);\n    if (match) {\n      const path = parseSVGPath(match[1]);\n      const contours = getPathContours(path);\n      res.push(contours);\n    }\n  } while (match);\n\n  return res;\n}\n\nfunction getOffsetAndScale (polygons) {\n  let\n    minX = Infinity, maxX = -Infinity,\n    minY = Infinity, maxY = -Infinity;\n\n  polygons.forEach(poly => {\n    poly.forEach(ring => {\n      ring.forEach(point => {\n        minX = Math.min(minX, point[0]);\n        maxX = Math.max(maxX, point[0]);\n        minY = Math.min(minY, point[1]);\n        maxY = Math.max(maxY, point[1]);\n      });\n    });\n  });\n\n  return { offset: [minX, minY], scale: Math.max(maxX-minX, maxY-minY) };\n}\n\nwindow.triangulateSVG = function (svg) { // window... exposes it in webpack\n  const polygons = SVGtoPolygons(svg);\n\n  const { offset, scale } = getOffsetAndScale(polygons);\n\n  const res = [];\n\n  polygons.forEach(poly => {\n    const\n      vertices = [],\n      ringIndex = [];\n\n    let r = 0;\n    poly.forEach((ring, i) => {\n      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shaders={picking:{name:"picking",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nattribute vec3 aPickingColor;\nattribute float aZScale;\nuniform mat4 uModelMatrix;\nuniform mat4 uMatrix;\nuniform float uFogDistance;\nuniform float uFade;\nuniform float uIndex;\nvarying vec4 vColor;\nvoid main() {\nfloat f = clamp(uFade*aZScale, 0.0, 1.0);\nif (f == 0.0) {\ngl_Position = vec4(0.0, 0.0, 0.0, 0.0);\nvColor = vec4(0.0, 0.0, 0.0, 0.0);\n} else {\nvec4 pos = vec4(aPosition.x, aPosition.y, aPosition.z*f, aPosition.w);\ngl_Position = uMatrix * pos;\nvec4 mPosition = vec4(uModelMatrix * pos);\nfloat distance = length(mPosition);\nif (distance > uFogDistance) {\nvColor = vec4(0.0, 0.0, 0.0, 0.0);\n} else {\nvColor = vec4(clamp(uIndex, 0.0, 1.0), aPickingColor.g, aPickingColor.b, 1.0);\n}\n}\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nvarying vec4 vColor;\nvoid main() {\ngl_FragColor = vColor;\n}\n"},buildings:{name:"buildings",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\n#define halfPi 1.57079632679\nattribute vec4 aPosition;\nattribute vec2 aTexCoord;\nattribute vec3 aNormal;\nattribute vec3 aColor;\nattribute float aHeight;\nattribute vec4 aTintColor;\nattribute float aZScale;\nuniform mat4 uModelMatrix;\nuniform mat4 uMatrix;\nuniform mat3 uNormalTransform;\nuniform vec3 uLightDirection;\nuniform vec3 uLightColor;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\nuniform float uFade;\nvarying vec3 vColor;\nvarying vec2 vTexCoord;\nvarying float verticalDistanceToLowerEdge;\nconst float gradientStrength = 0.4;\nvoid main() {\nfloat f = clamp(uFade*aZScale, 0.0, 1.0);\nif (f == 0.0) {\ngl_Position = vec4(0.0, 0.0, 0.0, 0.0);\nvColor = vec3(0.0, 0.0, 0.0);\n} else {\nvec4 pos = vec4(aPosition.x, aPosition.y, aPosition.z*f, aPosition.w);\ngl_Position = uMatrix * pos;\nvec3 color = aColor;\n// tint ***********************************************\nif (aTintColor.a > 0.0) {\ncolor = mix(aColor, aTintColor.rgb, 0.5);\n}\n//*** light intensity, defined by light direction on surface ****************\nvec3 transformedNormal = aNormal * uNormalTransform;\nfloat lightIntensity = max( dot(transformedNormal, uLightDirection), 0.0) / 1.5;\ncolor = color + uLightColor * lightIntensity;\nvTexCoord = aTexCoord;\n//*** vertical shading ******************************************************\nfloat verticalShading = clamp(gradientStrength - ((pos.z*gradientStrength) / (aHeight * f)), 0.0, gradientStrength);\n//***************************************************************************\nvColor = color-verticalShading;\nvec4 worldPos = uModelMatrix * pos;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n}\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nvarying vec3 vColor;\nvarying vec2 vTexCoord;\nvarying float verticalDistanceToLowerEdge;\nuniform vec3 uFogColor;\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nuniform sampler2D uWallTexIndex;\nvoid main() {\n\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\nfogIntensity = clamp(fogIntensity, 0.0, 1.0);\ngl_FragColor = vec4(vColor * texture2D(uWallTexIndex, vTexCoord).rgb, 1.0-fogIntensity);\n}\n"},buildings_with_shadows:{name:"buildings_with_shadows",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\n#define halfPi 1.57079632679\nattribute vec4 aPosition;\nattribute vec3 aNormal;\nattribute vec3 aColor;\nattribute vec2 aTexCoord;\nattribute float aHeight;\nattribute vec4 aTintColor;\nattribute float aZScale;\nuniform mat4 uModelMatrix;\nuniform mat4 uMatrix;\nuniform mat4 uSunMatrix;\nuniform mat3 uNormalTransform;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\nuniform float uFade;\nvarying vec3 vColor;\nvarying vec2 vTexCoord;\nvarying vec3 vNormal;\nvarying vec3 vSunRelPosition;\nvarying float verticalDistanceToLowerEdge;\nfloat gradientStrength = 0.4;\nvoid main() {\nfloat f = clamp(uFade*aZScale, 0.0, 1.0);\nif (f == 0.0) {\ngl_Position = vec4(0.0, 0.0, 0.0, 0.0);\nvColor = vec3(0.0, 0.0, 0.0);\n} else {\nvec4 pos = vec4(aPosition.x, aPosition.y, aPosition.z*f, aPosition.w);\ngl_Position = uMatrix * pos;\nvec3 color = aColor;\n// tint ***********************************************\nif (aTintColor.a > 0.0) {\ncolor = mix(aColor, aTintColor.rgb, 0.5);\n}\n//*** light intensity, defined by light direction on surface ****************\nvNormal = aNormal;\nvTexCoord = aTexCoord;\n//vec3 transformedNormal = aNormal * uNormalTransform;\n//float lightIntensity = max( dot(aNormal, uLightDirection), 0.0) / 1.5;\n//color = color + uLightColor * lightIntensity;\n//*** vertical shading ******************************************************\nfloat verticalShading = clamp(gradientStrength - ((pos.z*gradientStrength) / (aHeight * f)), 0.0, gradientStrength);\n//***************************************************************************\nvColor = color-verticalShading;\nvec4 worldPos = uModelMatrix * pos;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n// *** shadow mapping ********\nvec4 sunRelPosition = uSunMatrix * pos;\nvSunRelPosition = (sunRelPosition.xyz / sunRelPosition.w + 1.0) / 2.0;\n}\n}\n",fs:"\n#ifdef GL_FRAGMENT_PRECISION_HIGH\nprecision highp float;\n#else\nprecision mediump float;\n#endif\nvarying vec2 vTexCoord;\nvarying vec3 vColor;\nvarying vec3 vNormal;\nvarying vec3 vSunRelPosition;\nvarying float verticalDistanceToLowerEdge;\nuniform vec3 uFogColor;\nuniform vec2 uShadowTexDimensions;\nuniform sampler2D uShadowTexIndex;\nuniform sampler2D uWallTexIndex;\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nuniform float uShadowStrength;\nuniform vec3 uLightDirection;\nuniform vec3 uLightColor;\nfloat isSeenBySun(const vec2 sunViewNDC, const float depth, const float bias) {\nif ( clamp( sunViewNDC, 0.0, 1.0) != sunViewNDC) //not inside sun's viewport\nreturn 1.0;\n\nfloat depthFromTexture = texture2D( uShadowTexIndex, sunViewNDC.xy).x;\n\n//compare depth values not in reciprocal but in linear depth\nreturn step(1.0/depthFromTexture, 1.0/depth + bias);\n}\nvoid main() {\nvec3 normal = normalize(vNormal); //may degenerate during per-pixel interpolation\nfloat diffuse = dot(uLightDirection, normal);\ndiffuse = max(diffuse, 0.0);\n// reduce shadow strength with:\n// - lowering sun positions, to be consistent with the shadows on the basemap (there,\n// shadows are faded out with lowering sun positions to hide shadow artifacts caused\n// when sun direction and map surface are almost perpendicular\n// - large angles between the sun direction and the surface normal, to hide shadow\n// artifacts that occur when surface normal and sun direction are almost perpendicular\nfloat shadowStrength = pow( max( min(\ndot(uLightDirection, vec3(0.0, 0.0, 1.0)),\ndot(uLightDirection, normal)\n), 0.0), 1.5);\nif (diffuse > 0.0 && shadowStrength > 0.0) {\n// note: the diffuse term is also the cosine between the surface normal and the\n// light direction\nfloat bias = clamp(0.0007*tan(acos(diffuse)), 0.0, 0.01);\nvec2 pos = fract( vSunRelPosition.xy * uShadowTexDimensions);\n\nvec2 tl = floor(vSunRelPosition.xy * uShadowTexDimensions) / uShadowTexDimensions;\nfloat tlVal = isSeenBySun( tl, vSunRelPosition.z, bias);\nfloat trVal = isSeenBySun( tl + vec2(1.0, 0.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat blVal = isSeenBySun( tl + vec2(0.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat brVal = isSeenBySun( tl + vec2(1.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat occludedBySun = mix(\nmix(tlVal, trVal, pos.x),\nmix(blVal, brVal, pos.x),\npos.y);\ndiffuse *= 1.0 - (shadowStrength * (1.0 - occludedBySun));\n}\nvec3 color = vColor* texture2D( uWallTexIndex, vTexCoord.st).rgb +\n(diffuse/1.5) * uLightColor;\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\nfogIntensity = clamp(fogIntensity, 0.0, 1.0);\n//gl_FragColor = vec4( mix(color, uFogColor, fogIntensity), 1.0);\ngl_FragColor = vec4( color, 1.0-fogIntensity);\n}\n"},markers_simple:{name:"markers_simple",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nuniform mat4 uProjMatrix;\nuniform mat4 uViewMatrix;\nuniform mat4 uModelMatrix;\nuniform vec3 uColor;\nvarying vec3 vColor;\n// TODO: fog distance handling is missing here\nvoid main() {\nmat4 modelView = uViewMatrix * uModelMatrix;\nmodelView[0][0] = 1.0;\nmodelView[0][1] = 0.0;\nmodelView[0][2] = 0.0;\nmodelView[1][0] = 0.0;\nmodelView[1][1] = 1.0;\nmodelView[1][2] = 0.0;\nmodelView[2][0] = 0.0;\nmodelView[2][1] = 0.0;\nmodelView[2][2] = 1.0;\nmat4 mvp = uProjMatrix * modelView;\nfloat reciprScaleOnscreen = 0.02;\nfloat w = (mvp * vec4(0,0,0,1)).w;\nw *= reciprScaleOnscreen;\nvec4 pos = vec4((aPosition.x * w), (aPosition.y * w) , aPosition.z * w, 1);\ngl_Position = mvp * pos;\nvColor = uColor;\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nvarying vec3 vColor;\nvoid main() {\ngl_FragColor = vec4(vColor, 1.0);\n}\n"},markers:{name:"markers",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nuniform mat4 uProjMatrix;\nuniform mat4 uViewMatrix;\nuniform mat4 uModelMatrix;\nuniform vec3 uColor;\nuniform mat4 uSunMatrix;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\nvarying vec3 vColor;\nvarying vec3 vNormal;\nvarying vec3 vSunRelPosition;\nvarying float verticalDistanceToLowerEdge;\n// TODO: fog distance handling is missing here\nvoid main() {\nmat4 modelView = uViewMatrix * uModelMatrix;\nmodelView[0][0] = 1.0;\nmodelView[0][1] = 0.0;\nmodelView[0][2] = 0.0;\nmodelView[1][0] = 0.0;\nmodelView[1][1] = 1.0;\nmodelView[1][2] = 0.0;\nmodelView[2][0] = 0.0;\nmodelView[2][1] = 0.0;\nmodelView[2][2] = 1.0;\nmat4 mvp = uProjMatrix * modelView;\nfloat reciprScaleOnscreen = 0.02;\nfloat w = (mvp * vec4(0,0,0,1)).w;\nw *= reciprScaleOnscreen;\nvec4 pos = vec4((aPosition.x * w), (aPosition.y * w) , aPosition.z * w, 1);\ngl_Position = mvp * pos;\nvColor = uColor;\nvec4 worldPos = uModelMatrix * pos;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n// *** shadow mapping ********\nvec4 sunRelPosition = uSunMatrix * pos;\nvSunRelPosition = (sunRelPosition.xyz / sunRelPosition.w + 1.0) / 2.0;\n}\n",fs:"#ifdef GL_FRAGMENT_PRECISION_HIGH\nprecision highp float;\n#else\nprecision mediump float;\n#endif\nvarying vec3 vColor;\nvarying vec3 vNormal;\nvarying vec3 vSunRelPosition;\nvarying float verticalDistanceToLowerEdge;\nuniform vec3 uFogColor;\nuniform vec2 uShadowTexDimensions;\nuniform sampler2D uShadowTexIndex;\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nuniform float uShadowStrength;\nuniform vec3 uLightDirection;\nuniform vec3 uLightColor;\nfloat isSeenBySun(const vec2 sunViewNDC, const float depth, const float bias) {\nif ( clamp( sunViewNDC, 0.0, 1.0) != sunViewNDC) // not inside sun's viewport\nreturn 1.0;\n\nfloat depthFromTexture = texture2D( uShadowTexIndex, sunViewNDC.xy).x;\n\n// compare depth values not in reciprocal but in linear depth\nreturn step(1.0/depthFromTexture, 1.0/depth + bias);\n}\nvoid main() {\nvec3 normal = normalize(vec3(0.0, -1.0, 0.0)); //may degenerate during per-pixel interpolation\nfloat diffuse = dot(uLightDirection, normal);\ndiffuse = max(diffuse, 0.0);\n// reduce shadow strength with:\n// - lowering sun positions, to be consistent with the shadows on the basemap (there,\n// shadows are faded out with lowering sun positions to hide shadow artifacts caused\n// when sun direction and map surface are almost perpendicular\n// - large angles between the sun direction and the surface normal, to hide shadow\n// artifacts that occur when surface normal and sun direction are almost perpendicular\nfloat shadowStrength = pow( max( min(\ndot(uLightDirection, vec3(0.0, 0.0, 1.0)),\ndot(uLightDirection, normal)\n), 0.0), 1.5);\nif (diffuse > 0.0 && shadowStrength > 0.0) {\n// note: the diffuse term is also the cosine between the surface normal and the\n// light direction\nfloat bias = clamp(0.0007*tan(acos(diffuse)), 0.0, 0.01);\nvec2 pos = fract( vSunRelPosition.xy * uShadowTexDimensions);\n\nvec2 tl = floor(vSunRelPosition.xy * uShadowTexDimensions) / uShadowTexDimensions;\nfloat tlVal = isSeenBySun( tl, vSunRelPosition.z, bias);\nfloat trVal = isSeenBySun( tl + vec2(1.0, 0.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat blVal = isSeenBySun( tl + vec2(0.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat brVal = isSeenBySun( tl + vec2(1.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat occludedBySun = mix(\nmix(tlVal, trVal, pos.x),\nmix(blVal, brVal, pos.x),\npos.y);\ndiffuse *= 1.0 - (shadowStrength * (1.0 - occludedBySun));\n}\nvec3 color = vColor + (diffuse/1.5) * uLightColor;\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\nfogIntensity = clamp(fogIntensity, 0.0, 1.0);\ngl_FragColor = vec4( color, 1.0-fogIntensity);\n}\n"},markers_picking:{name:"markers_picking",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nuniform vec3 uPickingColor;\nuniform mat4 uProjMatrix;\nuniform mat4 uViewMatrix;\nuniform mat4 uModelMatrix;\nuniform float uFogDistance;\nuniform float uIndex;\nvarying vec3 vColor;\nvoid main() {\nmat4 modelView = uViewMatrix * uModelMatrix;\nmodelView[0][0] = 1.0;\nmodelView[0][1] = 0.0;\nmodelView[0][2] = 0.0;\nmodelView[1][0] = 0.0;\nmodelView[1][1] = 1.0;\nmodelView[1][2] = 0.0;\nmodelView[2][0] = 0.0;\nmodelView[2][1] = 0.0;\nmodelView[2][2] = 1.0;\nmat4 mvp = uProjMatrix * modelView;\nfloat reciprScaleOnscreen = 0.02;\nfloat w = (mvp * vec4(0,0,0,1)).w;\nw *= reciprScaleOnscreen;\nvec4 pos = vec4((aPosition.x * w), (aPosition.y * w) , aPosition.z * w, 1);\ngl_Position = mvp * pos;\n// vec4 pos = aPosition.x;\n// gl_Position = uMatrix * pos;\nvec4 mPosition = vec4(uModelMatrix * pos);\nfloat distance = length(mPosition);\nif (distance > uFogDistance) {\nvColor = vec3(0.0, 0.0, 0.0);\n} else {\nvColor = vec3(clamp(uIndex, 0.0, 1.0), uPickingColor.g, uPickingColor.b);\n}\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nvarying vec3 vColor;\nvoid main() {\ngl_FragColor = vec4(vColor, 1.0);\n}\n"},basemap:{name:"basemap",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\n#define halfPi 1.57079632679\nattribute vec4 aPosition;\nattribute vec2 aTexCoord;\nuniform mat4 uViewMatrix;\nuniform mat4 uModelMatrix;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\nvarying vec2 vTexCoord;\nvarying float verticalDistanceToLowerEdge;\nvoid main() {\ngl_Position = uViewMatrix * aPosition;\nvTexCoord = aTexCoord;\nvec4 worldPos = uModelMatrix * aPosition;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform sampler2D uTexIndex;\nuniform vec3 uFogColor;\nvarying vec2 vTexCoord;\nvarying float verticalDistanceToLowerEdge;\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nvoid main() {\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\nfogIntensity = clamp(fogIntensity, 0.0, 1.0);\ngl_FragColor = vec4(texture2D(uTexIndex, vec2(vTexCoord.x, 1.0-vTexCoord.y)).rgb, 1.0-fogIntensity);\n}\n"},basemap_with_shadows:{name:"basemap_with_shadows",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\nattribute vec3 aPosition;\nattribute vec3 aNormal;\nuniform mat4 uModelMatrix;\nuniform mat4 uMatrix;\nuniform mat4 uSunMatrix;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\n//varying vec2 vTexCoord;\nvarying vec3 vSunRelPosition;\nvarying vec3 vNormal;\nvarying float verticalDistanceToLowerEdge;\nvoid main() {\nvec4 pos = vec4(aPosition.xyz, 1.0);\ngl_Position = uMatrix * pos;\nvec4 sunRelPosition = uSunMatrix * pos;\nvSunRelPosition = (sunRelPosition.xyz / sunRelPosition.w + 1.0) / 2.0;\nvNormal = aNormal;\nvec4 worldPos = uModelMatrix * pos;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n}\n",fs:"\n#ifdef GL_FRAGMENT_PRECISION_HIGH\nprecision highp float;\n#else\nprecision mediump float;\n#endif\n/* This shader computes the diffuse brightness of the map layer. It does *not*\n* render the map texture itself, but is instead intended to be blended on top\n* of an already rendered map.\n* Note: this shader is not (and does not attempt to) be physically correct.\n* It is intented to be a blend between a useful illustration of cast\n* shadows and a mitigation of shadow casting artifacts occuring at\n* low angles on incidence.\n* Map brightness is only affected by shadows, not by light direction.\n* Shadows are darkest when light comes from straight above (and thus\n* shadows can be computed reliably) and become less and less visible\n* with the light source close to horizon (where moiré and offset\n* artifacts would otherwise be visible).\n*/\n//uniform sampler2D uTexIndex;\nuniform sampler2D uShadowTexIndex;\nuniform vec3 uFogColor;\nuniform vec3 uDirToSun;\nuniform vec2 uShadowTexDimensions;\nuniform float uShadowStrength;\nvarying vec2 vTexCoord;\nvarying vec3 vSunRelPosition;\nvarying vec3 vNormal;\nvarying float verticalDistanceToLowerEdge;\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nfloat isSeenBySun( const vec2 sunViewNDC, const float depth, const float bias) {\nif ( clamp( sunViewNDC, 0.0, 1.0) != sunViewNDC) //not inside sun's viewport\nreturn 1.0;\n\nfloat depthFromTexture = texture2D( uShadowTexIndex, sunViewNDC.xy).x;\n\n//compare depth values not in reciprocal but in linear depth\nreturn step(1.0/depthFromTexture, 1.0/depth + bias);\n}\nvoid main() {\n//vec2 tl = floor(vSunRelPosition.xy * uShadowTexDimensions) / uShadowTexDimensions;\n//gl_FragColor = vec4(vec3(texture2D( uShadowTexIndex, tl).x), 1.0);\n//return;\nfloat diffuse = dot(uDirToSun, normalize(vNormal));\ndiffuse = max(diffuse, 0.0);\n\nfloat shadowStrength = uShadowStrength * pow(diffuse, 1.5);\nif (diffuse > 0.0) {\n// note: the diffuse term is also the cosine between the surface normal and the\n// light direction\nfloat bias = clamp(0.0007*tan(acos(diffuse)), 0.0, 0.01);\n\nvec2 pos = fract( vSunRelPosition.xy * uShadowTexDimensions);\n\nvec2 tl = floor(vSunRelPosition.xy * uShadowTexDimensions) / uShadowTexDimensions;\nfloat tlVal = isSeenBySun( tl, vSunRelPosition.z, bias);\nfloat trVal = isSeenBySun( tl + vec2(1.0, 0.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat blVal = isSeenBySun( tl + vec2(0.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\nfloat brVal = isSeenBySun( tl + vec2(1.0, 1.0) / uShadowTexDimensions, vSunRelPosition.z, bias);\ndiffuse = mix( mix(tlVal, trVal, pos.x),\nmix(blVal, brVal, pos.x),\npos.y);\n}\ndiffuse = mix(1.0, diffuse, shadowStrength);\n\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\nfogIntensity = clamp(fogIntensity, 0.0, 1.0);\nfloat darkness = (1.0 - diffuse);\ndarkness *= (1.0 - fogIntensity);\ngl_FragColor = vec4(vec3(1.0 - darkness), 1.0);\n}\n"},texture:{name:"texture",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nattribute vec2 aTexCoord;\nuniform mat4 uMatrix;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_Position = uMatrix * aPosition;\nvTexCoord = aTexCoord;\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform sampler2D uTexIndex;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_FragColor = vec4(texture2D(uTexIndex, vTexCoord.st).rgb, 1.0);\n}\n"},depth_normal:{name:"depth_normal",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nattribute vec3 aNormal;\nattribute float aZScale;\nuniform mat4 uMatrix;\nuniform mat4 uModelMatrix;\nuniform mat3 uNormalMatrix;\nuniform vec2 uViewDirOnMap;\nuniform vec2 uLowerEdgePoint;\nuniform float uFade;\nvarying float verticalDistanceToLowerEdge;\nvarying vec3 vNormal;\nvoid main() {\nfloat f = clamp(uFade*aZScale, 0.0, 1.0);\nif (f == 0.0) {\ngl_Position = vec4(0.0, 0.0, 0.0, 0.0);\nverticalDistanceToLowerEdge = 0.0;\n} else {\nvec4 pos = vec4(aPosition.x, aPosition.y, aPosition.z*f, aPosition.w);\ngl_Position = uMatrix * pos;\nvNormal = uNormalMatrix * aNormal;\nvec4 worldPos = uModelMatrix * pos;\nvec2 dirFromLowerEdge = worldPos.xy / worldPos.w - uLowerEdgePoint;\nverticalDistanceToLowerEdge = dot(dirFromLowerEdge, uViewDirOnMap);\n}\n}\n",fs:"\n#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform float uFogDistance;\nuniform float uFogBlurDistance;\nvarying float verticalDistanceToLowerEdge;\nvarying vec3 vNormal;\nvoid main() {\nfloat fogIntensity = (verticalDistanceToLowerEdge - uFogDistance) / uFogBlurDistance;\ngl_FragColor = vec4(normalize(vNormal) / 2.0 + 0.5, clamp(fogIntensity, 0.0, 1.0));\n}\n"},ambient_from_depth:{name:"ambient_from_depth",vs:"precision highp float; //is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nattribute vec2 aTexCoord;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_Position = aPosition;\nvTexCoord = aTexCoord;\n}\n",fs:"#ifdef GL_FRAGMENT_PRECISION_HIGH\n// we need high precision for the depth values\nprecision highp float;\n#else\nprecision mediump float;\n#endif\nuniform sampler2D uDepthTexIndex;\nuniform sampler2D uFogTexIndex;\nuniform vec2 uInverseTexSize; //in 1/pixels, e.g. 1/512 if the texture is 512px wide\nuniform float uEffectStrength;\nuniform float uNearPlane;\nuniform float uFarPlane;\nvarying vec2 vTexCoord;\n/* Retrieves the depth value 'offset' pixels away from 'pos' from texture 'uDepthTexIndex'. */\nfloat getDepth(vec2 pos, ivec2 offset)\n{\nfloat z = texture2D(uDepthTexIndex, pos + float(offset) * uInverseTexSize).x;\nreturn (2.0 * uNearPlane) / (uFarPlane + uNearPlane - z * (uFarPlane - uNearPlane)); // linearize depth\n}\n/* getOcclusionFactor() determines a heuristic factor (from [0..1]) for how\n* much the fragment at 'pos' with depth 'depthHere'is occluded by the\n* fragment that is (dx, dy) texels away from it.\n*/\nfloat getOcclusionFactor(float depthHere, vec2 pos, ivec2 offset) {\nfloat depthThere = getDepth(pos, offset);\n/* if the fragment at (dx, dy) has no depth (i.e. there was nothing rendered there),\n* then 'here' is not occluded (result 1.0) */\nif (depthThere == 0.0)\nreturn 1.0;\n/* if the fragment at (dx, dy) is further away from the viewer than 'here', then\n* 'here is not occluded' */\nif (depthHere < depthThere )\nreturn 1.0;\nfloat relDepthDiff = depthThere / depthHere;\nfloat depthDiff = abs(depthThere - depthHere) * uFarPlane;\n/* if the fragment at (dx, dy) is closer to the viewer than 'here', then it occludes\n* 'here'. The occlusion is the higher the bigger the depth difference between the two\n* locations is.\n* However, if the depth difference is too high, we assume that 'there' lies in a\n* completely different depth region of the scene than 'here' and thus cannot occlude\n* 'here'. This last assumption gets rid of very dark artifacts around tall buildings.\n*/\nreturn depthDiff < 50.0 ? mix(0.99, 1.0, 1.0 - clamp(depthDiff, 0.0, 1.0)) : 1.0;\n}\n/* This shader approximates the ambient occlusion in screen space (SSAO).\n* It is based on the assumption that a pixel will be occluded by neighboring\n* pixels iff. those have a depth value closer to the camera than the original\n* pixel itself (the function getOcclusionFactor() computes this occlusion\n* by a single other pixel).\n*\n* A naive approach would sample all pixels within a given distance. For an\n* interesting-looking effect, the sampling area needs to be at least 9 pixels\n* wide (-/+ 4), requiring 81 texture lookups per pixel for ambient occlusion.\n* This overburdens many GPUs.\n* To make the ambient occlusion computation faster, we do not consider all\n* texels in the sampling area, but only 16. This causes some sampling artifacts\n* that are later removed by blurring the ambient occlusion texture (this is\n* done in a separate shader).\n*/\nvoid main() {\nfloat depthHere = getDepth(vTexCoord, ivec2(0, 0));\nfloat fogIntensity = texture2D(uFogTexIndex, vTexCoord).w;\nif (depthHere == 0.0)\n{\n\t//there was nothing rendered 'here' --\x3e it can't be occluded\ngl_FragColor = vec4(1.0);\nreturn;\n}\nfloat occlusionFactor = 1.0;\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-1, 0));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+1, 0));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2( 0, -1));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2( 0, +1));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-2, -2));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+2, +2));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+2, -2));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-2, +2));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-4, 0));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+4, 0));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2( 0, -4));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2( 0, +4));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-4, -4));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+4, +4));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(+4, -4));\nocclusionFactor *= getOcclusionFactor(depthHere, vTexCoord, ivec2(-4, +4));\nocclusionFactor = pow(occlusionFactor, 4.0) + 55.0/255.0; // empirical bias determined to let SSAO have no effect on the map plane\nocclusionFactor = 1.0 - ((1.0 - occlusionFactor) * uEffectStrength * (1.0-fogIntensity));\ngl_FragColor = vec4(vec3(occlusionFactor), 1.0);\n}\n"},flat_color:{name:"flat_color",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nuniform mat4 uMatrix;\nvoid main() {\ngl_Position = uMatrix * aPosition;\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform vec4 uColor;\nvoid main() {\ngl_FragColor = uColor;\n}\n"},horizon:{name:"horizon",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\n#define halfPi 1.57079632679\nattribute vec4 aPosition;\nuniform mat4 uMatrix;\nuniform float uAbsoluteHeight;\nvarying vec2 vTexCoord;\nvarying float vRelativeHeight;\nvoid main() {\ngl_Position = uMatrix * aPosition;\nvRelativeHeight = aPosition.z / uAbsoluteHeight;\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform vec3 uFogColor;\nvarying float vRelativeHeight;\nvoid main() {\nfloat blendFactor = min(100.0 * vRelativeHeight, 1.0);\nvec4 skyColor = vec4(0.9, 0.85, 1.0, 1.0);\ngl_FragColor = mix(vec4(uFogColor, 1.0), skyColor, blendFactor);\n}\n"},blur:{name:"blur",vs:"precision highp float; // is default in vertex shaders anyway, using highp fixes #49\nattribute vec4 aPosition;\nattribute vec2 aTexCoord;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_Position = aPosition;\nvTexCoord = aTexCoord;\n}\n",fs:"#ifdef GL_ES\nprecision mediump float;\n#endif\nuniform sampler2D uTexIndex;\nuniform vec2 uInverseTexSize; // as 1/n pixels, e.g. 1/512 if the texture is 512px wide\nvarying vec2 vTexCoord;\n// Retrieves the texel color 'offset' pixels away from 'pos' from texture 'uTexIndex'.\nvec4 getTexel(vec2 pos, vec2 offset) {\nreturn texture2D(uTexIndex, pos + offset * uInverseTexSize);\n}\nvoid main() {\nvec4 center = texture2D(uTexIndex, vTexCoord);\nvec4 nonDiagonalNeighbors = getTexel(vTexCoord, vec2(-1.0, 0.0)) +\ngetTexel(vTexCoord, vec2(+1.0, 0.0)) +\ngetTexel(vTexCoord, vec2( 0.0, -1.0)) +\ngetTexel(vTexCoord, vec2( 0.0, +1.0));\nvec4 diagonalNeighbors = getTexel(vTexCoord, vec2(-1.0, -1.0)) +\ngetTexel(vTexCoord, vec2(+1.0, +1.0)) +\ngetTexel(vTexCoord, vec2(-1.0, +1.0)) +\ngetTexel(vTexCoord, vec2(+1.0, -1.0));\n\n// approximate Gaussian blur (mean 0.0, stdev 1.0)\ngl_FragColor = 0.2/1.0 * center +\n0.5/4.0 * nonDiagonalNeighbors +\n0.3/4.0 * diagonalNeighbors;\n}\n"}},workers={feature:'class Request{static load(e,t){const r=new XMLHttpRequest,n=setTimeout(e=>{4!==r.readyState&&(r.abort(),t("status"))},1e4);return r.onreadystatechange=(()=>{4===r.readyState&&(clearTimeout(n),!r.status||r.status<200||r.status>299?t("status"):t(null,r))}),r.open("GET",e),r.send(null),{abort:()=>{r.abort()}}}static getText(e,t){return this.load(e,(e,r)=>{e?t(e):void 0!==r.responseText?t(null,r.responseText):t("content")})}static getXML(e,t){return this.load(e,(e,r)=>{e?t(e):void 0!==r.responseXML?t(null,r.responseXML):t("content")})}static getJSON(e,t){return this.load(e,(r,n)=>{if(r)return void t(r);if(!n.responseText)return void t("content");let o;try{o=JSON.parse(n.responseText),t(null,o)}catch(r){console.warn(`Could not parse JSON from ${e}\\n${r.message}`),t("content")}})}}var Qolor=function(){var e={aliceblue:"#f0f8ff",antiquewhite:"#faebd7",aqua:"#00ffff",aquamarine:"#7fffd4",azure:"#f0ffff",beige:"#f5f5dc",bisque:"#ffe4c4",black:"#000000",blanchedalmond:"#ffebcd",blue:"#0000ff",blueviolet:"#8a2be2",brown:"#a52a2a",burlywood:"#deb887",cadetblue:"#5f9ea0",chartreuse:"#7fff00",chocolate:"#d2691e",coral:"#ff7f50",cornflowerblue:"#6495ed",cornsilk:"#fff8dc",crimson:"#dc143c",cyan:"#00ffff",darkblue:"#00008b",darkcyan:"#008b8b",darkgoldenrod:"#b8860b",darkgray:"#a9a9a9",darkgrey:"#a9a9a9",darkgreen:"#006400",darkkhaki:"#bdb76b",darkmagenta:"#8b008b",darkolivegreen:"#556b2f",darkorange:"#ff8c00",darkorchid:"#9932cc",darkred:"#8b0000",darksalmon:"#e9967a",darkseagreen:"#8fbc8f",darkslateblue:"#483d8b",darkslategray:"#2f4f4f",darkslategrey:"#2f4f4f",darkturquoise:"#00ced1",darkviolet:"#9400d3",deeppink:"#ff1493",deepskyblue:"#00bfff",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1e90ff",firebrick:"#b22222",floralwhite:"#fffaf0",forestgreen:"#228b22",fuchsia:"#ff00ff",gainsboro:"#dcdcdc",ghostwhite:"#f8f8ff",gold:"#ffd700",goldenrod:"#daa520",gray:"#808080",grey:"#808080",green:"#008000",greenyellow:"#adff2f",honeydew:"#f0fff0",hotpink:"#ff69b4",indianred:"#cd5c5c",indigo:"#4b0082",ivory:"#fffff0",khaki:"#f0e68c",lavender:"#e6e6fa",lavenderblush:"#fff0f5",lawngreen:"#7cfc00",lemonchiffon:"#fffacd",lightblue:"#add8e6",lightcoral:"#f08080",lightcyan:"#e0ffff",lightgoldenrodyellow:"#fafad2",lightgray:"#d3d3d3",lightgrey:"#d3d3d3",lightgreen:"#90ee90",lightpink:"#ffb6c1",lightsalmon:"#ffa07a",lightseagreen:"#20b2aa",lightskyblue:"#87cefa",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#b0c4de",lightyellow:"#ffffe0",lime:"#00ff00",limegreen:"#32cd32",linen:"#faf0e6",magenta:"#ff00ff",maroon:"#800000",mediumaquamarine:"#66cdaa",mediumblue:"#0000cd",mediumorchid:"#ba55d3",mediumpurple:"#9370db",mediumseagreen:"#3cb371",mediumslateblue:"#7b68ee",mediumspringgreen:"#00fa9a",mediumturquoise:"#48d1cc",mediumvioletred:"#c71585",midnightblue:"#191970",mintcream:"#f5fffa",mistyrose:"#ffe4e1",moccasin:"#ffe4b5",navajowhite:"#ffdead",navy:"#000080",oldlace:"#fdf5e6",olive:"#808000",olivedrab:"#6b8e23",orange:"#ffa500",orangered:"#ff4500",orchid:"#da70d6",palegoldenrod:"#eee8aa",palegreen:"#98fb98",paleturquoise:"#afeeee",palevioletred:"#db7093",papayawhip:"#ffefd5",peachpuff:"#ffdab9",peru:"#cd853f",pink:"#ffc0cb",plum:"#dda0dd",powderblue:"#b0e0e6",purple:"#800080",rebeccapurple:"#663399",red:"#ff0000",rosybrown:"#bc8f8f",royalblue:"#4169e1",saddlebrown:"#8b4513",salmon:"#fa8072",sandybrown:"#f4a460",seagreen:"#2e8b57",seashell:"#fff5ee",sienna:"#a0522d",silver:"#c0c0c0",skyblue:"#87ceeb",slateblue:"#6a5acd",slategray:"#708090",slategrey:"#708090",snow:"#fffafa",springgreen:"#00ff7f",steelblue:"#4682b4",tan:"#d2b48c",teal:"#008080",thistle:"#d8bfd8",tomato:"#ff6347",turquoise:"#40e0d0",violet:"#ee82ee",wheat:"#f5deb3",white:"#ffffff",whitesmoke:"#f5f5f5",yellow:"#ffff00",yellowgreen:"#9acd32"};function t(e,t,r){return r<0&&(r+=1),r>1&&(r-=1),r<1/6?e+6*(t-e)*r:r<.5?t:r<2/3?e+(t-e)*(2/3-r)*6:e}function r(e,t){if(void 0!==e)return Math.min(t,Math.max(0,e||0))}var n=function(e,t,n,o){this.r=r(e,1),this.g=r(t,1),this.b=r(n,1),this.a=r(o,1)||1};return n.parse=function(t){if("string"==typeof t){var r;if(t=t.toLowerCase(),r=(t=e[t]||t).match(/^#?(\\w{2})(\\w{2})(\\w{2})$/))return new n(parseInt(r[1],16)/255,parseInt(r[2],16)/255,parseInt(r[3],16)/255);if(r=t.match(/^#?(\\w)(\\w)(\\w)$/))return new n(parseInt(r[1]+r[1],16)/255,parseInt(r[2]+r[2],16)/255,parseInt(r[3]+r[3],16)/255);if(r=t.match(/rgba?\\((\\d+)\\D+(\\d+)\\D+(\\d+)(\\D+([\\d.]+))?\\)/))return new n(parseFloat(r[1])/255,parseFloat(r[2])/255,parseFloat(r[3])/255,r[4]?parseFloat(r[5]):1)}return new n},n.fromHSL=function(e,t,r){var o=(new n).fromHSL(e,t,r);return o.a=a,o},n.prototype={isValid:function(){return void 0!==this.r&&void 0!==this.g&&void 0!==this.b},toHSL:function(){if(this.isValid()){var 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this.fromHSL(t.h,t.s*e,t.l)},lightness:function(e){var t=this.toHSL();return this.fromHSL(t.h,t.s,t.l*e)},clone:function(){return new n(this.r,this.g,this.b,this.a)}},n}();"object"==typeof module&&(module.exports=Qolor);class OBJ{constructor(e,t){this.materialIndex={},this.vertexIndex=[],t&&this.readMTL(t),this.meshes=[],this.readOBJ(e)}readMTL(e){const t=e.split(/[\\r\\n]/g);let r,n=[];t.forEach(e=>{const t=e.trim().split(/\\s+/);switch(t[0]){case"newmtl":r&&(this.materialIndex[r]=n),r=t[1],n=[];break;case"Kd":n=[parseFloat(t[1]),parseFloat(t[2]),parseFloat(t[3])]}}),r&&(this.materialIndex[r]=n),e=null}readOBJ(e){let t,r,n=[];e.split(/[\\r\\n]/g).forEach(e=>{const 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o=n.prev,a=n.next.next;!g(o,a)&&x(o,n,n.next,a)&&v(o,a)&&v(a,o)&&(t.push(o.i/r),t.push(n.i/r),t.push(a.i/r),b(n),b(n.next),n=e=a),n=n.next}while(n!==e);return n}function s(e,t,o,a,i,s){var l=e;do{for(var f=l.next.next;f!==l.prev;){if(l.i!==f.i&&d(l,f)){var c=m(l,f);return l=r(l,l.next),c=r(c,c.next),n(l,t,o,a,i,s),void n(c,t,o,a,i,s)}f=f.next}l=l.next}while(l!==e)}function l(e,t){return e.x-t.x}function f(e,t){if(t=function(e,t){var r,n=t,o=e.x,a=e.y,i=-1/0;do{if(a<=n.y&&a>=n.next.y){var s=n.x+(a-n.y)*(n.next.x-n.x)/(n.next.y-n.y);if(s<=o&&s>i){if(i=s,s===o){if(a===n.y)return n;if(a===n.next.y)return n.next}r=n.x<n.next.x?n:n.next}}n=n.next}while(n!==t);if(!r)return null;if(o===i)return r.prev;var l,f=r,c=r.x,u=r.y,d=1/0;n=r.next;for(;n!==f;)o>=n.x&&n.x>=c&&h(a<u?o:i,a,c,u,a<u?i:o,a,n.x,n.y)&&((l=Math.abs(a-n.y)/(o-n.x))<d||l===d&&n.x>r.x)&&v(n,e)&&(r=n,d=l),n=n.next;return r}(e,t)){var n=m(t,e);r(n,n.next)}}function c(e,t,r,n,o){return(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)/o)|e<<8))|e<<4))|e<<2))|e<<1))|(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)/o)|t<<8))|t<<4))|t<<2))|t<<1))<<1}function u(e){var t=e,r=e;do{t.x<r.x&&(r=t),t=t.next}while(t!==e);return r}function h(e,t,r,n,o,a,i,s){return(o-i)*(t-s)-(e-i)*(a-s)>=0&&(e-i)*(n-s)-(r-i)*(t-s)>=0&&(r-i)*(a-s)-(o-i)*(n-s)>=0}function d(e,t){return e.next.i!==t.i&&e.prev.i!==t.i&&!function(e,t){var r=e;do{if(r.i!==e.i&&r.next.i!==e.i&&r.i!==t.i&&r.next.i!==t.i&&x(r,r.next,e,t))return!0;r=r.next}while(r!==e);return!1}(e,t)&&v(e,t)&&v(t,e)&&function(e,t){var r=e,n=!1,o=(e.x+t.x)/2,a=(e.y+t.y)/2;do{r.y>a!=r.next.y>a&&o<(r.next.x-r.x)*(a-r.y)/(r.next.y-r.y)+r.x&&(n=!n),r=r.next}while(r!==e);return n}(e,t)}function p(e,t,r){return(t.y-e.y)*(r.x-t.x)-(t.x-e.x)*(r.y-t.y)}function g(e,t){return e.x===t.x&&e.y===t.y}function x(e,t,r,n){return!!(g(e,t)&&g(r,n)||g(e,n)&&g(r,t))||p(e,t,r)>0!=p(e,t,n)>0&&p(r,n,e)>0!=p(r,n,t)>0}function v(e,t){return p(e.prev,e,e.next)<0?p(e,t,e.next)>=0&&p(e,e.prev,t)>=0:p(e,t,e.prev)<0||p(e,e.next,t)<0}function m(e,t){var r=new M(e.i,e.x,e.y),n=new M(t.i,t.x,t.y),o=e.next,a=t.prev;return e.next=t,t.prev=e,r.next=o,o.prev=r,n.next=r,r.prev=n,a.next=n,n.prev=a,n}function y(e,t,r,n){var o=new M(e,t,r);return n?(o.next=n.next,o.prev=n,n.next.prev=o,n.next=o):(o.prev=o,o.next=o),o}function b(e){e.next.prev=e.prev,e.prev.next=e.next,e.prevZ&&(e.prevZ.nextZ=e.nextZ),e.nextZ&&(e.nextZ.prevZ=e.prevZ)}function M(e,t,r){this.i=e,this.x=t,this.y=r,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function w(e,t,r,n){for(var o=0,a=t,i=r-n;a<r;a+=n)o+=(e[i]-e[a])*(e[a+1]+e[i+1]),i=a;return o}return e.deviation=function(e,t,r,n){var o,a,i=t&&t.length,s=i?t[0]*r:e.length,l=Math.abs(w(e,0,s,r));if(i)for(o=0,a=t.length;o<a;o++){var f=t[o]*r,c=o<a-1?t[o+1]*r:e.length;l-=Math.abs(w(e,f,c,r))}var u=0;for(o=0,a=n.length;o<a;o+=3){var h=n[o]*r,d=n[o+1]*r,p=n[o+2]*r;u+=Math.abs((e[h]-e[p])*(e[d+1]-e[h+1])-(e[h]-e[d])*(e[p+1]-e[h+1]))}return 0===l&&0===u?0:Math.abs((u-l)/l)},e.flatten=function(e){for(var t=e[0][0].length,r={vertices:[],holes:[],dimensions:t},n=0,o=0;o<e.length;o++){for(var a=0;a<e[o].length;a++)for(var i=0;i<t;i++)r.vertices.push(e[o][a][i]);o>0&&(n+=e[o-1].length,r.holes.push(n))}return r},e}();const triangulate=function(){const e=10,t=[.8627450980392157,.8235294117647058,.7843137254901961];METERS_PER_LEVEL=3;const r={brick:"#cc7755",bronze:"#ffeecc",canvas:"#fff8f0",concrete:"#999999",copper:"#a0e0d0",glass:"#e8f8f8",gold:"#ffcc00",plants:"#009933",metal:"#aaaaaa",panel:"#fff8f0",plaster:"#999999",roof_tiles:"#f08060",silver:"#cccccc",slate:"#666666",stone:"#996666",tar_paper:"#333333",wood:"#deb887"},n={asphalt:"tar_paper",bitumen:"tar_paper",block:"stone",bricks:"brick",glas:"glass",glassfront:"glass",grass:"plants",masonry:"stone",granite:"stone",panels:"panel",paving_stones:"stone",plastered:"plaster",rooftiles:"roof_tiles",roofingfelt:"tar_paper",sandstone:"stone",sheet:"canvas",sheets:"canvas",shingle:"tar_paper",shingles:"tar_paper",slates:"slate",steel:"metal",tar:"tar_paper",tent:"canvas",thatch:"plants",tile:"roof_tiles",tiles:"roof_tiles"},o=.5,a=6378137*Math.PI/180;function i(e){return"string"!=typeof e?null:"#"===(e=e.toLowerCase())[0]?e:r[n[e]||e]||null}function s(e,r){r=r||0;let n,o=Qolor.parse(e);return[(n=o.isValid()?o.saturation(.7).toArray():t)[0]+r,n[1]+r,n[2]+r]}return function(t,r,n,l,f){const c=[a*Math.cos(n[1]/180*Math.PI),a];(function(e){switch(e.type){case"MultiPolygon":return e.coordinates;case"Polygon":return[e.coordinates];default:return[]}})(r.geometry).map(a=>{const u=function(e,t,r){return e.map((e,n)=>(0===n!==function(e){return 0<e.reduce((e,t,r,n)=>e+(r<n.length-1?(n[r+1][0]-t[0])*(n[r+1][1]+t[1]):0),0)}(e)&&e.reverse(),e.map(function(e){return[(e[0]-t[0])*r[0],-(e[1]-t[1])*r[1]]})))}(a,n,c);!function(t,r,n,a,l){const f=function(t,r){const n={};switch(n.center=[r.minX+(r.maxX-r.minX)/2,r.minY+(r.maxY-r.minY)/2],n.radius=(r.maxX-r.minX)/2,n.roofHeight=t.roofHeight||(t.roofLevels?t.roofLevels*METERS_PER_LEVEL:0),t.roofShape){case"cone":case"pyramid":case"dome":case"onion":n.roofHeight=n.roofHeight||1*n.radius;break;case"gabled":case"hipped":case"half-hipped":case"skillion":case"gambrel":case"mansard":case"round":n.roofHeight=n.roofHeight||1*METERS_PER_LEVEL;break;case"flat":n.roofHeight=0;break;default:n.roofHeight=0}let o;if(n.wallZ=t.minHeight||(t.minLevel?t.minLevel*METERS_PER_LEVEL:0),void 0!==t.height)o=t.height,n.roofHeight=Math.min(n.roofHeight,o),n.roofZ=o-n.roofHeight,n.wallHeight=o-n.roofHeight-n.wallZ;else if(void 0!==t.levels)o=t.levels*METERS_PER_LEVEL,n.roofZ=o,n.wallHeight=o-n.wallZ;else{switch(t.shape){case"cone":case"dome":case"pyramid":o=2*n.radius,n.roofHeight=0;break;case"sphere":o=4*n.radius,n.roofHeight=0;break;default:o=e}n.roofZ=o,n.wallHeight=o-n.wallZ}return n}(r,function(e){let t=1/0,r=1/0,n=-1/0,o=-1/0;for(let a=0;a<e.length;a++)t=Math.min(t,e[a][0]),r=Math.min(r,e[a][1]),n=Math.max(n,e[a][0]),o=Math.max(o,e[a][1]);return{minX:t,minY:r,maxX:n,maxY:o}}(n[0])),c=s(a||r.wallColor||r.color||i(r.material),l),u=s(a||r.roofColor||i(r.roofMaterial),l);switch(r.shape){case"cone":return void split.cylinder(t,f.center,f.radius,0,f.wallHeight,f.wallZ,c);case"dome":return void split.dome(t,f.center,f.radius,f.wallHeight,f.wallZ,c);case"pyramid":return void split.pyramid(t,n,f.center,f.wallHeight,f.wallZ,c);case"sphere":return void split.sphere(t,f.center,f.radius,f.wallHeight,f.wallZ,c)}switch(createRoof(t,r,n,f,u,c),r.shape){case"none":return;case"cylinder":return void split.cylinder(t,f.center,f.radius,f.radius,f.wallHeight,f.wallZ,c);default:let e=.2,a=.4;"glass"!==r.material&&(e=0,a=0,r.levels&&(a=parseFloat(r.levels)-parseFloat(r.minLevel||0)<<0)),split.extrusion(t,n,f.wallHeight,f.wallZ,c,[0,o,e/f.wallHeight,a/f.wallHeight])}}(t,r.properties,u,l,f)})}}();var createRoof;function pointOnSegment(e,t){return e[0]>=Math.min(t[0][0],t[1][0])&&e[0]<=Math.max(t[1][0],t[0][0])&&e[1]>=Math.min(t[0][1],t[1][1])&&e[1]<=Math.max(t[1][1],t[0][1])}function getVectorSegmentIntersection(e,t,r){var n,o,a,i,s,l=r[0],f=[r[1][0]-r[0][0],r[1][1]-r[0][1]];if(0!==t[0]||0!==f[0]){if(0!==t[0]&&(a=t[1]/t[0],n=e[1]-a*e[0]),0!==f[0]&&(i=f[1]/f[0],o=l[1]-i*l[0]),0===t[0]&&pointOnSegment(s=[e[0],i*e[0]+o],r))return s;if(0===f[0]&&pointOnSegment(s=[l[0],a*l[0]+n],r))return s;if(a!==i){var c=(o-n)/(a-i);return pointOnSegment(s=[c,a*c+n],r)?s:void 0}}}function getDistanceToLine(e,t){var r=t[0],n=t[1];if(r[0]!==n[0]||r[1]!==n[1]){var o=(n[1]-r[1])/(n[0]-r[0]),a=r[1]-o*r[0];if(0===o)return Math.abs(a-e[1]);if(o===1/0)return Math.abs(r[0]-e[0]);var i=-1/o,s=(e[1]-i*e[0]-a)/(o-i),l=o*s+a,f=e[0]-s,c=e[1]-l;return Math.sqrt(f*f+c*c)}}!function(){function e(e,r,n,o,a,i,s){if(0,n.length>1||void 0===r.roofDirection)return t(e,r,n,a,i);var l=(r.roofDirection/180-.5)*Math.PI,f=[Math.cos(l),Math.sin(l)],c=function(e,t,r){for(var n,o=[],a=0;a<r.length-1;a++)if(void 0!==(n=getVectorSegmentIntersection(e,t,[r[a],r[a+1]]))){if(2===o.length)return;a++,r.splice(a,0,n),o.push(a)}if(!(o.length<2))return{index:o,roof:r}}(a.center,f,n[0]);if(!c)return t(e,r,n,a,i);for(var u,h=c.index,d=c.roof,p=[],g=0,x=[d[h[0]],d[h[1]]],v=0;v<d.length;v++)p[v]=getDistanceToLine(d[v],x),g=Math.max(g,p[v]);for(v=0;v<d.length;v++)d[v][2]=(1-p[v]/g)*a.roofHeight;for(u=d.slice(h[0],h[1]+1),split.polygon(e,[u],a.roofZ,i),u=(u=d.slice(h[1],d.length-1)).concat(d.slice(0,h[0]+1)),split.polygon(e,[u],a.roofZ,i),v=0;v<d.length-1;v++)0===d[v][2]&&0===d[v+1][2]||split.quad(e,[d[v][0],d[v][1],a.roofZ+d[v][2]],[d[v][0],d[v][1],a.roofZ],[d[v+1][0],d[v+1][1],a.roofZ],[d[v+1][0],d[v+1][1],a.roofZ+d[v+1][2]],s)}function t(e,t,r,n,o){"cylinder"===t.shape?split.circle(e,n.center,n.radius,n.roofZ,o):split.polygon(e,r,n.roofZ,o)}createRoof=function(r,n,o,a,i,s){switch(n.roofShape){case"cone":return function(e,t,r,n){split.polygon(e,t,r.roofZ,n),split.cylinder(e,r.center,r.radius,0,r.roofHeight,r.roofZ,n)}(r,o,a,i);case"dome":return function(e,t,r,n){split.polygon(e,t,r.roofZ,n),split.dome(e,r.center,r.radius,r.roofHeight,r.roofZ,n)}(r,o,a,i);case"pyramid":return function(e,t,r,n,o){"cylinder"===t.shape?split.cylinder(e,n.center,n.radius,0,n.roofHeight,n.roofZ,o):split.pyramid(e,r,n.center,n.roofHeight,n.roofZ,o)}(r,n,o,a,i);case"skillion":return function(e,r,n,o,a,i){if(void 0===r.roofDirection)return t(e,r,n,o,a);var s,l,f=r.roofDirection/180*Math.PI,c=1/0,u=-1/0;n[0].forEach(function(e){var t=e[1]*Math.cos(-f)+e[0]*Math.sin(-f);t<c&&(c=t,s=e),t>u&&(u=t,l=e)});var h=n[0],d=[Math.cos(f),Math.sin(f)],p=[s,[s[0]+d[0],s[1]+d[1]]],g=getDistanceToLine(l,p);n.forEach(function(e){e.forEach(function(e){var t=getDistanceToLine(e,p);e[2]=t/g*o.roofHeight})}),split.polygon(e,[h],o.roofZ,a),n.forEach(function(t){for(var r=0;r<t.length-1;r++)0===t[r][2]&&0===t[r+1][2]||split.quad(e,[t[r][0],t[r][1],o.roofZ+t[r][2]],[t[r][0],t[r][1],o.roofZ],[t[r+1][0],t[r+1][1],o.roofZ],[t[r+1][0],t[r+1][1],o.roofZ+t[r+1][2]],i)})}(r,n,o,a,i,s);case"gabled":return e(r,n,o,0,a,i,s);case"hipped":case"half-hipped":return t(r,n,o,a,i);case"gambrel":case"mansard":return e(r,n,o,0,a,i,s);case"round":return function(e,r,n,o,a,i){if(n.length>1||void 0===r.roofDirection)return t(e,r,n,o,a);return t(e,r,n,o,a)}(r,n,o,a,i);case"onion":return function(e,t,r,n){split.polygon(e,t,r.roofZ,n);for(var o,a,i=[{rScale:.8,hScale:0},{rScale:.9,hScale:.18},{rScale:.9,hScale:.35},{rScale:.8,hScale:.47},{rScale:.6,hScale:.59},{rScale:.5,hScale:.65},{rScale:.2,hScale:.82},{rScale:0,hScale:1}],s=0,l=i.length-1;s<l;s++)o=r.roofHeight*i[s].hScale,a=r.roofHeight*i[s+1].hScale,split.cylinder(e,r.center,r.radius*i[s].rScale,r.radius*i[s+1].rScale,a-o,r.roofZ+o,n)}(r,o,a,i);default:return t(r,n,o,a,i)}}}();const split={NUM_Y_SEGMENTS:24,NUM_X_SEGMENTS:32,quad:(e,t,r,n,o,a)=>{split.triangle(e,t,r,n,a),split.triangle(e,n,o,t,a)},triangle:(e,t,r,n,o)=>{const a=vec3.normal(t,r,n);e.vertices.push(...t,...n,...r),e.normals.push(...a,...a,...a),e.colors.push(...o,...o,...o),e.texCoords.push(0,0,0,0,0,0)},circle:(e,t,r,n,o)=>{let a,i;n=n||0;for(let s=0;s<split.NUM_X_SEGMENTS;s++)a=s/split.NUM_X_SEGMENTS,i=(s+1)/split.NUM_X_SEGMENTS,split.triangle(e,[t[0]+r*Math.sin(a*Math.PI*2),t[1]+r*Math.cos(a*Math.PI*2),n],[t[0],t[1],n],[t[0]+r*Math.sin(i*Math.PI*2),t[1]+r*Math.cos(i*Math.PI*2),n],o)},polygon:(e,t,r,n)=>{r=r||0;const o=[],a=[];let i=0;t.forEach((e,n)=>{e.forEach(e=>{o.push(e[0],e[1],r+(e[2]||0))}),n&&(i+=t[n-1].length,a.push(i))});const s=earcut(o,a,3);for(let t=0;t<s.length-2;t+=3){const r=3*s[t],a=3*s[t+1],i=3*s[t+2];split.triangle(e,[o[r],o[r+1],o[r+2]],[o[a],o[a+1],o[a+2]],[o[i],o[i+1],o[i+2]],n)}},cube:(e,t,r,n,o,a,i,s)=>{const l=[o=o||0,a=a||0,i=i||0],f=[o+t,a,i],c=[o+t,a+r,i],u=[o,a+r,i],h=[o,a,i+n],d=[o+t,a,i+n],p=[o+t,a+r,i+n],g=[o,a+r,i+n];split.quad(e,f,l,u,c,s),split.quad(e,h,d,p,g,s),split.quad(e,l,f,d,h,s),split.quad(e,f,c,p,d,s),split.quad(e,c,u,g,p,s),split.quad(e,u,l,h,g,s)},cylinder:(e,t,r,n,o,a,i)=>{a=a||0;const s=split.NUM_X_SEGMENTS,l=2*Math.PI;let f,c,u,h,d,p;for(let g=0;g<s;g++)f=g/s*l,c=(g+1)/s*l,u=Math.sin(f),h=Math.cos(f),d=Math.sin(c),p=Math.cos(c),split.triangle(e,[t[0]+r*u,t[1]+r*h,a],[t[0]+n*d,t[1]+n*p,a+o],[t[0]+r*d,t[1]+r*p,a],i),0!==n&&split.triangle(e,[t[0]+n*u,t[1]+n*h,a+o],[t[0]+n*d,t[1]+n*p,a+o],[t[0]+r*u,t[1]+r*h,a],i)},dome:(e,t,r,n,o,a,i)=>{o=o||0;const s=split.NUM_Y_SEGMENTS/2,l=Math.PI/2,f=i?0:-l;let c,u,h,d,p,g,x,v,m,y;for(let i=0;i<s;i++)c=i/s*l+f,u=(i+1)/s*l+f,h=Math.cos(c),d=Math.sin(c),x=h*r,v=(p=Math.cos(u))*r,m=((g=Math.sin(u))-d)*n,y=o-g*n,split.cylinder(e,t,v,x,m,y,a)},sphere:(e,t,r,n,o,a)=>{o=o||0;let i=0;return i+=split.dome(e,t,r,n/2,o+n/2,a,!0),i+=split.dome(e,t,r,n/2,o+n/2,a)},pyramid:(e,t,r,n,o,a)=>{o=o||0;for(let i=0,s=(t=t[0]).length-1;i<s;i++)split.triangle(e,[t[i][0],t[i][1],o],[t[i+1][0],t[i+1][1],o],[r[0],r[1],o+n],a)},extrusion:(e,t,r,n,o,a)=>{n=n||0;let i,s,l,f,c,u,h,d,p,g,x,v,m=a[2]*r,y=a[3]*r;t.forEach(t=>{for(x=0,v=t.length-1;x<v;x++)i=t[x],s=t[x+1],l=vec2.len(vec2.sub(i,s)),f=[i[0],i[1],n],c=[s[0],s[1],n],u=[s[0],s[1],n+r],h=[i[0],i[1],n+r],d=vec3.normal(f,c,u),[].push.apply(e.vertices,[].concat(f,u,c,f,h,u)),[].push.apply(e.normals,[].concat(d,d,d,d,d,d)),[].push.apply(e.colors,[].concat(o,o,o,o,o,o)),p=a[0]*l<<0,g=a[1]*l<<0,e.texCoords.push(p,y,g,m,g,y,p,y,p,m,g,m)})}},vec3={len:e=>Math.sqrt(e[0]*e[0]+e[1]*e[1]+e[2]*e[2]),sub:(e,t)=>[e[0]-t[0],e[1]-t[1],e[2]-t[2]],unit:e=>{const t=vec3.len(e);return[e[0]/t,e[1]/t,e[2]/t]},normal:(e,t,r)=>{const n=vec3.sub(e,t),o=vec3.sub(t,r);return vec3.unit([n[1]*o[2]-n[2]*o[1],n[2]*o[0]-n[0]*o[2],n[0]*o[1]-n[1]*o[0]])}},vec2={len:e=>Math.sqrt(e[0]*e[0]+e[1]*e[1]),add:(e,t)=>[e[0]+t[0],e[1]+t[1]],sub:(e,t)=>[e[0]-t[0],e[1]-t[1]],dot:(e,t)=>e[1]*t[0]-e[0]*t[1],scale:(e,t)=>[e[0]*t,e[1]*t],equals:(e,t)=>e[0]===t[0]&&e[1]===t[1]};function getOrigin(e){const t=e.coordinates;switch(e.type){case"Point":return t;case"MultiPoint":case"LineString":return t[0];case"MultiLineString":case"Polygon":return t[0][0];case"MultiPolygon":return t[0][0][0]}}function getPickingColor(e){return[0,(255&++e)/255,(e>>8&255)/255]}function postResult(e,t,r){const n={items:e,position:t,vertices:new Float32Array(r.vertices),normals:new Float32Array(r.normals),colors:new Float32Array(r.colors),texCoords:new Float32Array(r.texCoords),heights:new Float32Array(r.heights),pickingColors:new Float32Array(r.pickingColors)};postMessage(n,[n.vertices.buffer,n.normals.buffer,n.colors.buffer,n.texCoords.buffer,n.heights.buffer,n.pickingColors.buffer])}function loadGeoJSON(e,t={}){"object"==typeof e?(postMessage("load"),processGeoJSON(e,t)):Request.getJSON(e,(e,r)=>{e?postMessage("error"):(postMessage("load"),processGeoJSON(r,t))})}function processGeoJSON(e,t){if(!e||!e.features.length)return void postMessage("error");const r={vertices:[],normals:[],colors:[],texCoords:[],heights:[],pickingColors:[]},n=[],o=getOrigin(e.features[0].geometry),a={latitude:o[1],longitude:o[0]};e.features.forEach((e,a)=>{const i=e.properties,s=t.id||e.id,l=getPickingColor(a);let f=r.vertices.length;triangulate(r,e,o),f=(r.vertices.length-f)/3;for(let e=0;e<f;e++)r.heights.push(i.height),r.pickingColors.push(...l);n.push({id:s,properties:i,vertexCount:f})}),postResult(n,a,r)}function loadOBJ(e,t={}){Request.getText(e,(r,n)=>{if(r)return void postMessage("error");let o=n.match(/^mtllib\\s+(.*)$/m);o?Request.getText(e.replace(/[^\\/]+$/,"")+o[1],(e,r)=>{e?postMessage("error"):(postMessage("load"),processOBJ(n,r,t))}):(postMessage("load"),processOBJ(n,null,t))})}function processOBJ(e,t,r={}){const n={vertices:[],normals:[],colors:[],texCoords:[],heights:[],pickingColors:[]},o=[],a=Qolor.parse(r.color).toArray(),i=r.position;OBJ.parse(e,t).forEach((e,t)=>{n.vertices.push(...e.vertices),n.normals.push(...e.normals),n.texCoords.push(...e.texCoords);const i=r.id||e.id,s=(i/2%2?-1:1)*(i%2?.03:.06),l=a||e.color||DEFAULT_COLOR,f=e.vertices.length/3,c=getPickingColor(0);for(let t=0;t<f;t++)n.colors.push(l[0]+s,l[1]+s,l[2]+s),n.heights.push(e.height),n.pickingColors.push(...c);o.push({id:i,properties:{},vertexCount:f})}),postResult(o,i,n)}onmessage=function(e){const t=e.data;"GeoJSON"===t.type&&loadGeoJSON(t.url,t.options),"OBJ"===t.type&&loadOBJ(t.url,t.options)};'};class GLX{constructor(e,t){let n;const r={antialias:!t,depth:!0,premultipliedAlpha:!1};try{n=e.getContext("webgl",r)}catch(e){}if(!n)try{n=e.getContext("experimental-webgl",r)}catch(e){}if(!n)throw new Error("GL not supported");e.addEventListener("webglcontextlost",e=>{console.warn("context lost")}),e.addEventListener("webglcontextrestored",e=>{console.warn("context restored")}),n.viewport(0,0,e.width,e.height),n.cullFace(n.BACK),n.enable(n.CULL_FACE),n.enable(n.DEPTH_TEST),n.clearColor(.5,.5,.5,1),t||(n.anisotropyExtension=n.getExtension("EXT_texture_filter_anisotropic"),n.anisotropyExtension&&(n.anisotropyExtension.maxAnisotropyLevel=n.getParameter(n.anisotropyExtension.MAX_TEXTURE_MAX_ANISOTROPY_EXT)),n.depthTextureExtension=n.getExtension("WEBGL_depth_texture")),this.GL=n}destroy(){this.GL.getExtension("WEBGL_lose_context").loseContext(),this.GL=null}}function rad(e){return e*Math.PI/180}function multiply(e,t,n){const r=t[0],i=t[1],o=t[2],a=t[3],s=t[4],l=t[5],u=t[6],h=t[7],c=t[8],f=t[9],d=t[10],m=t[11],p=t[12],x=t[13],g=t[14],v=t[15],y=n[0],w=n[1],b=n[2],P=n[3],T=n[4],M=n[5],L=n[6],E=n[7],G=n[8],_=n[9],S=n[10],A=n[11],D=n[12],C=n[13],R=n[14],F=n[15];e[0]=r*y+i*T+o*G+a*D,e[1]=r*w+i*M+o*_+a*C,e[2]=r*b+i*L+o*S+a*R,e[3]=r*P+i*E+o*A+a*F,e[4]=s*y+l*T+u*G+h*D,e[5]=s*w+l*M+u*_+h*C,e[6]=s*b+l*L+u*S+h*R,e[7]=s*P+l*E+u*A+h*F,e[8]=c*y+f*T+d*G+m*D,e[9]=c*w+f*M+d*_+m*C,e[10]=c*b+f*L+d*S+m*R,e[11]=c*P+f*E+d*A+m*F,e[12]=p*y+x*T+g*G+v*D,e[13]=p*w+x*M+g*_+v*C,e[14]=p*b+x*L+g*S+v*R,e[15]=p*P+x*E+g*A+v*F}GLX.Buffer=class{constructor(e,t){this.id=GL.createBuffer(),this.itemSize=e,this.numItems=t.length/e,GL.bindBuffer(GL.ARRAY_BUFFER,this.id),GL.bufferData(GL.ARRAY_BUFFER,t,GL.STATIC_DRAW),t=null}enable(){GL.bindBuffer(GL.ARRAY_BUFFER,this.id)}use(){GL.bindBuffer(GL.ARRAY_BUFFER,this.id)}destroy(){GL.deleteBuffer(this.id),this.id=null}},GLX.Framebuffer=class{constructor(e,t,n){if(n&&!GL.depthTextureExtension)throw new Error("GL: Depth textures are not supported");this.useDepthTexture=!!n,this.setSize(e,t)}setSize(e,t){if(this.frameBuffer){if(e===this.width&&t===this.height)return}else this.frameBuffer=GL.createFramebuffer();if(GL.bindFramebuffer(GL.FRAMEBUFFER,this.frameBuffer),this.width=e,this.height=t,this.depthRenderBuffer&&(GL.deleteRenderbuffer(this.depthRenderBuffer),this.depthRenderBuffer=null),this.depthTexture&&(this.depthTexture.destroy(),this.depthTexture=null),this.useDepthTexture?(this.depthTexture=new GLX.texture.Image,this.depthTexture.enable(0),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MIN_FILTER,GL.NEAREST),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MAG_FILTER,GL.NEAREST),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_S,GL.CLAMP_TO_EDGE),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_T,GL.CLAMP_TO_EDGE),GL.texImage2D(GL.TEXTURE_2D,0,GL.DEPTH_STENCIL,e,t,0,GL.DEPTH_STENCIL,GL.depthTextureExtension.UNSIGNED_INT_24_8_WEBGL,null),GL.framebufferTexture2D(GL.FRAMEBUFFER,GL.DEPTH_STENCIL_ATTACHMENT,GL.TEXTURE_2D,this.depthTexture.id,0)):(this.depthRenderBuffer=GL.createRenderbuffer(),GL.bindRenderbuffer(GL.RENDERBUFFER,this.depthRenderBuffer),GL.renderbufferStorage(GL.RENDERBUFFER,GL.DEPTH_COMPONENT16,e,t),GL.framebufferRenderbuffer(GL.FRAMEBUFFER,GL.DEPTH_ATTACHMENT,GL.RENDERBUFFER,this.depthRenderBuffer)),this.renderTexture&&this.renderTexture.destroy(),this.renderTexture=new GLX.texture.Data(GL,e,t),GL.bindTexture(GL.TEXTURE_2D,this.renderTexture.id),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_S,GL.CLAMP_TO_EDGE),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_T,GL.CLAMP_TO_EDGE),GL.framebufferTexture2D(GL.FRAMEBUFFER,GL.COLOR_ATTACHMENT0,GL.TEXTURE_2D,this.renderTexture.id,0),GL.checkFramebufferStatus(GL.FRAMEBUFFER)!==GL.FRAMEBUFFER_COMPLETE)throw new Error("Combination of framebuffer attachments doesn't work");GL.bindRenderbuffer(GL.RENDERBUFFER,null),GL.bindFramebuffer(GL.FRAMEBUFFER,null)}enable(){GL.bindFramebuffer(GL.FRAMEBUFFER,this.frameBuffer),this.useDepthTexture||GL.bindRenderbuffer(GL.RENDERBUFFER,this.depthRenderBuffer)}disable(){GL.bindFramebuffer(GL.FRAMEBUFFER,null),this.useDepthTexture||GL.bindRenderbuffer(GL.RENDERBUFFER,null)}getPixel(e,t){if(e<0||t<0||e>=this.width||t>=this.height)return;const n=new Uint8Array(4);return GL.readPixels(e,t,1,1,GL.RGBA,GL.UNSIGNED_BYTE,n),n}getData(){const e=new Uint8Array(this.width*this.height*4);return GL.readPixels(0,0,this.width,this.height,GL.RGBA,GL.UNSIGNED_BYTE,e),e}destroy(){this.renderTexture&&this.renderTexture.destroy(),this.depthTexture&&this.depthTexture.destroy()}},GLX.Shader=class{constructor(e){if(this.name=e.source.name||"",this.id=GL.createProgram(),this.compile(GL.VERTEX_SHADER,e.source.vs),this.compile(GL.FRAGMENT_SHADER,e.source.fs),GL.linkProgram(this.id),!GL.getProgramParameter(this.id,GL.LINK_STATUS))throw new Error(GL.getProgramParameter(this.id,GL.VALIDATE_STATUS)+"\n"+GL.getError());GL.useProgram(this.id),this.attributes={},(e.attributes||[]).forEach(e=>{this.locateAttribute(e)}),this.uniforms={},(e.uniforms||[]).forEach(e=>{this.locateUniform(e)})}locateAttribute(e){const t=GL.getAttribLocation(this.id,e);if(t<0)throw new Error(`unable to locate attribute "${e}" in shader "${this.name}"`);this.attributes[e]=t}locateUniform(e){const t=GL.getUniformLocation(this.id,e);if(!t)throw new Error(`unable to locate uniform "${e}" in shader "${this.name}"`);this.uniforms[e]=t}compile(e,t){const n=GL.createShader(e);if(GL.shaderSource(n,t),GL.compileShader(n),!GL.getShaderParameter(n,GL.COMPILE_STATUS))throw new Error(GL.getShaderInfoLog(n));GL.attachShader(this.id,n)}enable(){GL.useProgram(this.id);for(let e in this.attributes)GL.enableVertexAttribArray(this.attributes[e])}disable(){if(this.attributes)for(let e in this.attributes)GL.disableVertexAttribArray(this.attributes[e])}setBuffer(e,t){if(void 0===this.attributes[e])throw new Error(`attempt to bind buffer to invalid attribute "${e}" in shader "${this.name}"`);t.enable(),GL.vertexAttribPointer(this.attributes[e],t.itemSize,GL.FLOAT,!1,0,0)}setParam(e,t,n){if(void 0===this.uniforms[e])throw new Error(`attempt to bind to invalid uniform "${e}" in shader "${this.name}"`);GL["uniform"+t](this.uniforms[e],n)}setMatrix(e,t,n){if(void 0===this.uniforms[e])throw new Error(`attempt to bind to invalid uniform "${e}" in shader "${this.name}"`);GL["uniformMatrix"+t](this.uniforms[e],!1,n)}setTexture(e,t,n){n.enable(t),this.setParam(e,"1i",t)}destroy(){this.disable(),this.id=null}},GLX.Matrix=class{constructor(e){this.data=new Float32Array(e||[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1])}multiply(e){return multiply(this.data,this.data,e.data),this}translateTo(e,t,n){return this.data[12]=e,this.data[13]=t,this.data[14]=n,this}translateBy(e,t,n){return multiply(this.data,this.data,[1,0,0,0,0,1,0,0,0,0,1,0,e,t,n,1]),this}rotateX(e){const t=rad(e),n=Math.cos(t),r=Math.sin(t);return multiply(this.data,this.data,[1,0,0,0,0,n,r,0,0,-r,n,0,0,0,0,1]),this}rotateY(e){const t=rad(e),n=Math.cos(t),r=Math.sin(t);return multiply(this.data,this.data,[n,0,-r,0,0,1,0,0,r,0,n,0,0,0,0,1]),this}rotateZ(e){const t=rad(e),n=Math.cos(t),r=Math.sin(t);return multiply(this.data,this.data,[n,-r,0,0,r,n,0,0,0,0,1,0,0,0,0,1]),this}scale(e,t,n){return multiply(this.data,this.data,[e,0,0,0,0,t,0,0,0,0,n,0,0,0,0,1]),this}},GLX.Matrix.multiply=((e,t)=>{const n=new Float32Array(16);return multiply(n,e.data,t.data),n}),GLX.Matrix.Perspective=class extends GLX.Matrix{constructor(e,t,n,r){const i=1/Math.tan(e*(Math.PI/180)/2),o=1/(n-r);super([i/t,0,0,0,0,i,0,0,0,0,(r+n)*o,-1,0,0,2*r*n*o,0])}},GLX.Matrix.Frustum=class extends GLX.Matrix{constructor(e,t,n,r,i,o){const a=1/(t-e),s=1/(n-r),l=1/(i-o);super([2*i*a,0,0,0,0,2*i*s,0,0,(t+e)*a,(n+r)*s,(o+i)*l,-1,0,0,o*i*2*l,0])}},GLX.Matrix.Ortho=class extends GLX.Matrix{constructor(e,t,n,r,i,o){super([2/(t-e),0,0,0,0,2/(n-r),0,0,0,0,-2/(o-i),0,-(t+e)/(t-e),-(n+r)/(n-r),-(o+i)/(o-i),1])}},GLX.Matrix.invert3=(e=>{const t=e[0],n=e[1],r=e[2],i=e[4],o=e[5],a=e[6],s=e[8],l=e[9],u=e[10],h=u*o-a*l,c=-u*i+a*s,f=l*i-o*s;let d=t*h+n*c+r*f;return d?[h*(d=1/d),(-u*n+r*l)*d,(a*n-r*o)*d,c*d,(u*t-r*s)*d,(-a*t+r*i)*d,f*d,(-l*t+n*s)*d,(o*t-n*i)*d]:null}),GLX.Matrix.transpose3=(e=>new Float32Array([e[0],e[3],e[6],e[1],e[4],e[7],e[2],e[5],e[8]])),GLX.Matrix.transpose=(e=>new Float32Array([e[0],e[4],e[8],e[12],e[1],e[5],e[9],e[13],e[2],e[6],e[10],e[14],e[3],e[7],e[11],e[15]])),GLX.Matrix.transform=(e=>{const t=e[12],n=e[13],r=e[14],i=e[15];return{x:(t/i+1)/2,y:(n/i+1)/2,z:(r/i+1)/2}}),GLX.Matrix.invert=(e=>{const t=new Float32Array(16),n=e[0],r=e[1],i=e[2],o=e[3],a=e[4],s=e[5],l=e[6],u=e[7],h=e[8],c=e[9],f=e[10],d=e[11],m=e[12],p=e[13],x=e[14],g=e[15],v=n*s-r*a,y=n*l-i*a,w=n*u-o*a,b=r*l-i*s,P=r*u-o*s,T=i*u-o*l,M=h*p-c*m,L=h*x-f*m,E=h*g-d*m,G=c*x-f*p,_=c*g-d*p,S=f*g-d*x;let A=v*S-y*_+w*G+b*E-P*L+T*M;if(A)return A=1/A,t[0]=(s*S-l*_+u*G)*A,t[1]=(i*_-r*S-o*G)*A,t[2]=(p*T-x*P+g*b)*A,t[3]=(f*P-c*T-d*b)*A,t[4]=(l*E-a*S-u*L)*A,t[5]=(n*S-i*E+o*L)*A,t[6]=(x*w-m*T-g*y)*A,t[7]=(h*T-f*w+d*y)*A,t[8]=(a*_-s*E+u*M)*A,t[9]=(r*E-n*_-o*M)*A,t[10]=(m*P-p*w+g*v)*A,t[11]=(c*w-h*P-d*v)*A,t[12]=(s*L-a*G-l*M)*A,t[13]=(n*G-r*L+i*M)*A,t[14]=(p*y-m*b-x*v)*A,t[15]=(h*b-c*y+f*v)*A,t}),GLX.Matrix.identity=(()=>new GLX.Matrix([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1])),GLX.texture={},GLX.texture.Image=class{constructor(){this.id=GL.createTexture(),GL.bindTexture(GL.TEXTURE_2D,this.id),GL.bindTexture(GL.TEXTURE_2D,null)}clamp(e,t){if(e.width<=t&&e.height<=t)return e;let n=t,r=t;const i=e.width/e.height;i<1?n=Math.round(r*i):r=Math.round(n/i);const o=document.createElement("CANVAS");return o.width=n,o.height=r,o.getContext("2d").drawImage(e,0,0,o.width,o.height),o}load(e,t){const n=new Image;n.crossOrigin="*",n.onload=(e=>{this.set(n),t&&t(n)}),n.onerror=(e=>{t&&t()}),n.src=e}color(e){GL.bindTexture(GL.TEXTURE_2D,this.id),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MIN_FILTER,GL.LINEAR),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MAG_FILTER,GL.LINEAR),GL.texImage2D(GL.TEXTURE_2D,0,GL.RGBA,1,1,0,GL.RGBA,GL.UNSIGNED_BYTE,new Uint8Array([255*e[0],255*e[1],255*e[2],255*(void 0===e[3]?1:e[3])])),GL.bindTexture(GL.TEXTURE_2D,null)}set(e){this.id&&(e=this.clamp(e,GL.getParameter(GL.MAX_TEXTURE_SIZE)),GL.bindTexture(GL.TEXTURE_2D,this.id),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MIN_FILTER,GL.LINEAR_MIPMAP_NEAREST),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_MAG_FILTER,GL.LINEAR),GL.texImage2D(GL.TEXTURE_2D,0,GL.RGBA,GL.RGBA,GL.UNSIGNED_BYTE,e),GL.generateMipmap(GL.TEXTURE_2D),GL.anisotropyExtension&&GL.texParameterf(GL.TEXTURE_2D,GL.anisotropyExtension.TEXTURE_MAX_ANISOTROPY_EXT,GL.anisotropyExtension.maxAnisotropyLevel),GL.bindTexture(GL.TEXTURE_2D,null))}enable(e){this.id&&(GL.activeTexture(GL.TEXTURE0+(e||0)),GL.bindTexture(GL.TEXTURE_2D,this.id))}destroy(){GL.bindTexture(GL.TEXTURE_2D,null),GL.deleteTexture(this.id),this.id=null}},GLX.texture.Data=class{constructor(e,t,n,r){this.id=e.createTexture(),e.bindTexture(e.TEXTURE_2D,this.id),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.NEAREST),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.NEAREST);let i=null;if(r){const e=t*n*4;(i=new Uint8Array(e)).set(r.subarray(0,e))}e.texImage2D(e.TEXTURE_2D,0,e.RGBA,t,n,0,e.RGBA,e.UNSIGNED_BYTE,i),e.bindTexture(e.TEXTURE_2D,null),this.GL=e}enable(e){this.GL.activeTexture(this.GL.TEXTURE0+(e||0)),this.GL.bindTexture(this.GL.TEXTURE_2D,this.id)}destroy(){this.GL.bindTexture(this.GL.TEXTURE_2D,null),this.GL.deleteTexture(this.id),this.id=null}};class Collection{constructor(){this.items=[]}add(e){this.items.push(e)}remove(e){this.items=this.items.filter(t=>t!==e)}forEach(e){this.items.forEach(e)}destroy(){this.forEach(e=>e.destroy()),this.items=[]}}class WorkerPool{constructor(e,t){this.items=[];for(let n=0;n<t;n++)this.items[n]=new WorkerWrapper(e)}get(e){for(let t=0;t<this.items.length;t++)if(!this.items[t].busy)return this.items[t].busy=!0,void e(this.items[t]);setTimeout(()=>{this.get(e)},50)}destroy(){this.items.forEach(e=>e.destroy()),this.items=[]}}class WorkerWrapper{constructor(e){this.busy=!1,this.thread=new Worker(e)}postMessage(e){this.thread.postMessage(e)}onMessage(e){this.thread.onmessage=function(t){e(t.data)}}free(){this.thread.onmessage=function(e){},this.busy=!1}destroy(){this.thread.close()}}class IconCollection extends Collection{get(e,t){for(let n=0;n<this.items.length;n++)if(this.items[n].url===e)return void t(null,this.items[n]);new Icon(e).load(t)}}class Icon{constructor(e=Icon.defaultURL){this.type="svg",this.url=e}load(e){this.url!==Icon.defaultURL?Request.getText(this.url,(t,n)=>{t?e(t):this.onLoad(n,e)}):this.onLoad(DEFAULT_ICON,e)}onLoad(e,t){const n=[];triangulateSVG(e).forEach(e=>{const t=[e[0][0],e[0][1],0],r=[e[1][0],e[1][1],0],i=[e[2][0],e[2][1],0];n.push(...t,...r,...i)}),this.vertexBuffer=new GLX.Buffer(3,new Float32Array(n)),APP.icons.add(this),t(null,this)}destroy(){APP.icons.remove(this),this.vertexBuffer&&this.vertexBuffer.destroy()}}Icon.defaultURL="default_icon";class Marker{constructor(e,t=null,n={}){this.data=t;n.anchor;const r=n.scale||1;this.color=Qolor.parse(n.color||Marker.defaultColor).toArray(),this.metersPerLon=METERS_PER_DEGREE_LATITUDE*Math.cos(e.latitude/180*Math.PI),this.longitude=e.longitude,this.latitude=e.latitude,this.altitude=e.altitude||0,this.matrix=new GLX.Matrix,this.matrix.scale(r,r,r),n.url?APP.icons.get(n.url,(e,t)=>{e||(this.icon=t,APP.markers.add(this))}):APP.icons.get(Icon.defaultURL,(e,t)=>{e||(this.icon=t,APP.markers.add(this))})}getMatrix(){return this.matrix.translateTo((this.longitude-APP.position.longitude)*this.metersPerLon,(APP.position.latitude-this.latitude)*METERS_PER_DEGREE_LATITUDE,this.altitude),this.matrix}destroy(){APP.markers.remove(this)}}let APP,GL;Marker.defaultColor="#ffcc00";class OSMBuildings{constructor(e={}){APP=this,e.style&&(e.style.color||e.style.wallColor)&&(DEFAULT_COLOR=Qolor.parse(e.style.color||e.style.wallColor).toArray()),this.view=new View,this.view.backgroundColor=Qolor.parse(e.backgroundColor||BACKGROUND_COLOR).toArray(),this.view.fogColor=Qolor.parse(e.fogColor||FOG_COLOR).toArray(),this.attribution=e.attribution||OSMBuildings.ATTRIBUTION,this.minZoom=Math.max(parseFloat(e.minZoom||MIN_ZOOM),MIN_ZOOM),this.maxZoom=Math.min(parseFloat(e.maxZoom||MAX_ZOOM),MAX_ZOOM),this.maxZoom<this.minZoom&&(this.minZoom=MIN_ZOOM,this.maxZoom=MAX_ZOOM),this.bounds=e.bounds,this.position=e.position||{latitude:52.52,longitude:13.41},this.zoom=e.zoom||this.minZoom+(this.maxZoom-this.minZoom)/2,this.rotation=e.rotation||0,this.tilt=e.tilt||0,e.disabled&&this.setDisabled(!0);const t=Math.min(window.navigator.hardwareConcurrency||2,4),n=new Blob([workers.feature],{type:"application/javascript"});this.workers=new WorkerPool(URL.createObjectURL(n),4*t);let r=e.container;"string"==typeof r&&(r=document.getElementById(e.container)),this.container=document.createElement("DIV"),this.container.className="osmb",0===r.offsetHeight&&(r.style.height="100%",console.warn("Container height should be set. Now defaults to 100%.")),r.appendChild(this.container),this.canvas=document.createElement("CANVAS"),this.canvas.className="osmb-viewport";this.canvas.width=this.width=1*r.offsetWidth,this.canvas.height=this.height=1*r.offsetHeight,this.container.appendChild(this.canvas),this.glx=new GLX(this.canvas,e.fastMode),GL=this.glx.GL,this.features=new FeatureCollection,this.icons=new IconCollection,this.markers=new Collection,this.events=new Events(this.canvas),this._getStateFromUrl(),e.state&&(this._setStateToUrl(),this.events.on("change",e=>{this._setStateToUrl()})),this._attribution=document.createElement("DIV"),this._attribution.className="osmb-attribution",this.container.appendChild(this._attribution),this._updateAttribution(),this.setDate(new Date),this.view.start(),this.emit("load",this)}appendTo(){}on(e,t){this.events.on(e,t)}off(e,t){this.events.off(e,t)}emit(e,t){this.events.emit(e,t)}setDate(e){View.Sun.setDate("string"==typeof e?new Date(e):e)}project(e,t,n){const r=[(t-this.position.longitude)*METERS_PER_DEGREE_LONGITUDE,-(e-this.position.latitude)*METERS_PER_DEGREE_LATITUDE,n];let i=transformVec3(this.view.viewProjMatrix.data,r);return{x:(i=mul3scalar(add3(i,[1,1,1]),.5))[0]*this.width,y:(1-i[1])*this.height,z:i[2]}}unproject(e,t){const n=GLX.Matrix.invert(this.view.viewProjMatrix.data);let r=[e/this.width,1-t/this.height];const i=getIntersectionWithXYPlane((r=add2(mul2scalar(r,2),[-1,-1,-1]))[0],r[1],n);if(void 0!==i)return{longitude:this.position.longitude+i[0]/METERS_PER_DEGREE_LONGITUDE,latitude:this.position.latitude-i[1]/METERS_PER_DEGREE_LATITUDE}}remove(e){e.destroy&&e.destroy()}addOBJ(e,t,n={}){return n.position=t,new Feature("OBJ",e,n)}addGeoJSON(e,t){return new Feature("GeoJSON",e,t)}addGeoJSONTiles(e,t={}){return t.fixedZoom=t.fixedZoom||15,this.dataGrid=new Grid(e,GeoJSONTile,t,2),this.dataGrid}addMapTiles(e){return this.basemapGrid=new Grid(e,BitmapTile,{},4),this.basemapGrid}highlight(e){this.features.setTintCallback(e)}hide(e){this.features.setZScaleCallback(e)}show(){}getTarget(){}screenshot(){}_updateAttribution(){const e=[];this.attribution&&e.push(this.attribution),this._attribution.innerHTML=e.join(" · ")}_getStateFromUrl(){const e=location.search,t={};e&&e.substring(1).replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(e,n,r)=>{n&&(t[n]=r)}),this.setPosition(void 0!==t.lat&&void 0!==t.lon?{latitude:parseFloat(t.lat),longitude:parseFloat(t.lon)}:this.position),this.setZoom(void 0!==t.zoom?parseFloat(t.zoom):this.zoom),this.setRotation(void 0!==t.rotation?parseFloat(t.rotation):this.rotation),this.setTilt(void 0!==t.tilt?parseFloat(t.tilt):this.tilt)}_setStateToUrl(){history.replaceState&&!this.stateDebounce&&(this.stateDebounce=setTimeout(()=>{this.stateDebounce=null;const e=[];e.push("lat="+this.position.latitude.toFixed(6)),e.push("lon="+this.position.longitude.toFixed(6)),e.push("zoom="+this.zoom.toFixed(1)),e.push("tilt="+this.tilt.toFixed(1)),e.push("rotation="+this.rotation.toFixed(1)),history.replaceState({},"","?"+e.join("&"))},1e3))}setDisabled(e){this.events.isDisabled=!!e}isDisabled(){return!!this.events.isDisabled}getBounds(){return this.view.getViewQuad().map(e=>getPositionFromLocal(e))}setZoom(e,t){e=Math.max(e,this.minZoom),e=Math.min(e,this.maxZoom),this.zoom!==e&&(this.zoom=e,this.events.emit("zoom",{zoom:e}),this.events.emit("change"))}getZoom(){return this.zoom}setPosition(e){this.position=e,METERS_PER_DEGREE_LONGITUDE=METERS_PER_DEGREE_LATITUDE*Math.cos(this.position.latitude/180*Math.PI),this.events.emit("change")}getPosition(){return this.position}setSize(e,t){e===this.width&&t===this.height||(this.width=e,this.height=t,this.events.emit("resize",{width:this.width,height:this.height}))}getSize(){return{width:this.width,height:this.height}}setRotation(e){e%=360,this.rotation!==e&&(this.rotation=e,this.events.emit("rotate",{rotation:e}),this.events.emit("change"))}getRotation(){return this.rotation}setTilt(e){e=clamp(e,0,MAX_TILT),this.tilt!==e&&(this.tilt=e,this.events.emit("tilt",{tilt:e}),this.events.emit("change"))}getTilt(){return this.tilt}addMarker(e,t,n){return new Marker(e,t,n)}destroy(){this.view.destroy(),this.events.destroy(),this.glx.destroy(),this.canvas.parentNode.removeChild(this.canvas),this.features.destroy(),this.markers.destroy(),this.container.innerHTML=""}}function add2(e,t){return[e[0]+t[0],e[1]+t[1]]}function mul2scalar(e,t){return[e[0]*t,e[1]*t]}function getEventXY(e){const t=e.target.getBoundingClientRect();return{x:e.x-t.left,y:e.y-t.top}}function addListener(e,t,n){e.addEventListener(t,n,!1)}OSMBuildings.VERSION=null,OSMBuildings.ATTRIBUTION='<a href="https://osmbuildings.org/">© OSM Buildings</a>',"function"==typeof define?define([],OSMBuildings):"object"==typeof module?module.exports=OSMBuildings:window.OSMBuildings=OSMBuildings;class Events{constructor(e){this.listeners={},this.isDisabled=!1,this.prevX=0,this.prevY=0,this.startZoom=0,this.prevRotation=0,this.prevTilt=0,this.startDist=0,this.startAngle=0,this.button=null,this.addAllListeners(e)}addAllListeners(e){const t=window.document;let n;"ontouchstart"in window?(addListener(e,"touchstart",e=>{this.onTouchStart(e)}),addListener(t,"touchmove",e=>{this.onTouchMoveDocument(e)}),addListener(e,"touchmove",e=>{this.onTouchMove(e)}),addListener(t,"touchend",e=>{this.onTouchEndDocument(e)}),addListener(t,"gesturechange",e=>{this.onGestureChangeDocument(e)})):(addListener(e,"mousedown",e=>{this.onMouseDown(e)}),addListener(t,"mousemove",e=>{this.onMouseMoveDocument(e)}),addListener(e,"mousemove",e=>{this.onMouseMove(e)}),addListener(t,"mouseup",e=>{this.onMouseUpDocument(e)}),addListener(e,"mouseup",e=>{this.onMouseUp(e)}),addListener(e,"dblclick",e=>{this.onDoubleClick(e)}),addListener(e,"mousewheel",e=>{this.onMouseWheel(e)}),addListener(e,"DOMMouseScroll",e=>{this.onMouseWheel(e)}),addListener(e,"contextmenu",e=>{this.onContextMenu(e)})),addListener(window,"resize",e=>{n||(n=setTimeout(()=>{n=null,APP.setSize(APP.container.offsetWidth,APP.container.offsetHeight)},250))})}cancelEvent(e){e.preventDefault&&e.preventDefault(),e.returnValue=!1}onDoubleClick(e){APP.view.speedUp(),this.cancelEvent(e);const t=getEventXY(e);this.emit("doubleclick",{x:t.x,y:t.y}),this.isDisabled||APP.setZoom(APP.zoom+1,e)}onMouseDown(e){APP.view.speedUp(),this.cancelEvent(e),this.startZoom=APP.zoom,this.prevRotation=APP.rotation,this.prevTilt=APP.tilt,this.prevX=e.clientX,this.prevY=e.clientY,this.isMove=!1,(1===e.buttons||0===e.button)&&e.altKey||2===e.buttons||2===e.button?this.button=2:1!==e.buttons&&0!==e.button||(this.button=0);const t=getEventXY(e);this.emit("pointerdown",{x:t.x,y:t.y,button:this.button})}onMouseMoveDocument(e){0===this.button?(APP.view.speedUp(),this.moveMap(e),this.isMove=!0):2===this.button&&(APP.view.speedUp(),this.rotateMap(e),this.isMove=!0),this.prevX=e.clientX,this.prevY=e.clientY}onMouseMove(e){const t=getEventXY(e);this.emit("pointermove",t)}onMouseUpDocument(e){null!==this.button&&(0===this.button?this.moveMap(e):2===this.button&&this.rotateMap(e),this.button=null)}onMouseUp(e){if(this.isMove)this.emit("pointerup",{});else{const t=getEventXY(e);APP.view.Picking.getTarget(t.x,t.y,e=>{this.emit("pointerup",{features:e.features,marker:e.marker})})}}onMouseWheel(e){APP.view.speedUp(),this.cancelEvent(e);let t=0;if(e.wheelDeltaY?t=e.wheelDeltaY:e.wheelDelta?t=e.wheelDelta:e.detail&&(t=-e.detail),!this.isDisabled){const n=.2*(t>0?1:t<0?-1:0);APP.setZoom(APP.zoom+n,e)}}onContextMenu(e){this.cancelEvent(e)}moveMap(e){if(this.isDisabled)return;const t=.86*Math.pow(2,-APP.zoom),n=1/Math.cos(APP.position.latitude/180*Math.PI),r=e.clientX-this.prevX,i=e.clientY-this.prevY,o=APP.rotation*Math.PI/180,a=[Math.cos(o),Math.sin(o)],s=[Math.cos(o-Math.PI/2),Math.sin(o-Math.PI/2)],l=add2(mul2scalar(a,r),mul2scalar(s,-i)),u={longitude:APP.position.longitude-l[0]*t*n,latitude:APP.position.latitude+l[1]*t};APP.setPosition(u),this.emit("move",u)}rotateMap(e){this.isDisabled||(this.prevRotation+=(e.clientX-this.prevX)*(360/window.innerWidth),this.prevTilt-=(e.clientY-this.prevY)*(360/window.innerHeight),APP.setRotation(this.prevRotation),APP.setTilt(this.prevTilt))}emitGestureChange(e){const t=e.touches[0],n=e.touches[1],r=t.clientX-n.clientX,i=t.clientY-n.clientY,o=r*r+i*i,a=Math.atan2(i,r);this.onGestureChangeDocument({rotation:(a-this.startAngle)*(180/Math.PI)%360,scale:Math.sqrt(o/this.startDist)})}onTouchStart(e){APP.view.speedUp(),this.cancelEvent(e),this.button=0,this.isMove=!1;const t=e.touches[0];if(2===e.touches.length&&!("ongesturechange"in window)){const n=e.touches[1],r=t.clientX-n.clientX,i=t.clientY-n.clientY;this.startDist=r*r+i*i,this.startAngle=Math.atan2(i,r)}this.startZoom=APP.zoom,this.prevRotation=APP.rotation,this.prevTilt=APP.tilt,this.prevX=t.clientX,this.prevY=t.clientY,this.emit("pointerdown",{x:e.x,y:e.y,button:0})}onTouchMoveDocument(e){if(null===this.button)return;APP.view.speedUp();const t=e.touches[0];e.touches.length>1?(APP.setTilt(this.prevTilt+(this.prevY-t.clientY)*(360/window.innerHeight)),this.prevTilt=APP.tilt,"ongesturechange"in window||this.emitGestureChange(e),this.isMove=!0):(this.moveMap(t),this.isMove=!0),this.prevX=t.clientX,this.prevY=t.clientY}onTouchMove(e){if(1===e.touches.length){const t=getEventXY(e.touches[0]);this.emit("pointermove",{x:t.x,y:t.y,button:0})}}onTouchEndDocument(e){if(null===this.button)return;const t=e.touches[0];if(0===e.touches.length)if(this.button=null,this.isMove)this.emit("pointerup",{});else{const t=getEventXY(e);APP.view.Picking.getTarget(t.x,t.y,e=>{this.emit("pointerup",{features:e.features,marker:e.marker})})}else 1===e.touches.length&&(this.prevX=t.clientX,this.prevY=t.clientY)}onGestureChangeDocument(e){null!==this.button&&(APP.view.speedUp(),this.cancelEvent(e),this.isDisabled||(APP.setZoom(this.startZoom+(e.scale-1)),APP.setRotation(this.prevRotation-e.rotation)),this.emit("gesture",e))}on(e,t){(this.listeners[e]||(this.listeners[e]=[])).push(t)}off(e,t){this.listeners[e]=(this.listeners[e]||[]).filter(e=>e!==t)}emit(e,t){void 0!==this.listeners[e]&&setTimeout(()=>{this.listeners[e].forEach(e=>e(t))},0)}destroy(){this.listeners={}}}const MIN_ZOOM=15,MAX_ZOOM=22,MAX_TILT=45,TILE_SIZE=256,DEFAULT_HEIGHT=10,MAX_USED_ZOOM_LEVEL=25;let DEFAULT_COLOR=Qolor.parse("rgb(220, 210, 200)").toArray();const FOG_COLOR="#e8e0d8",BACKGROUND_COLOR="#efe8e0",document=window.document,EARTH_RADIUS_IN_METERS=6378137,EARTH_CIRCUMFERENCE_IN_METERS=EARTH_RADIUS_IN_METERS*Math.PI*2,METERS_PER_DEGREE_LATITUDE=EARTH_CIRCUMFERENCE_IN_METERS/360;let METERS_PER_DEGREE_LONGITUDE=METERS_PER_DEGREE_LATITUDE;const SHADOW_MAP_MAX_BUILDING_HEIGHT=100,SHADOW_DEPTH_MAP_SIZE=2048,BUILDING_TEXTURE="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABAAQMAAACQp+OdAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3wwCCAUQLpaUSQAAABl0RVh0Q29tbWVudABDcmVhdGVkIHdpdGggR0lNUFeBDhcAAAAGUExURebm5v///zFES9kAAAAcSURBVCjPY/gPBQyUMh4wAAH/KAPCoFaoDnYGAAKtZsamTRFlAAAAAElFTkSuQmCC",DEFAULT_ICON='<svg version="1.1" xmlns="http://www.w3.org/2000/svg" width="512px" height="512px" viewBox="0 0 512 512"><path d="M256,0C167.641,0,96,71.625,96,160c0,24.75,5.625,48.219,15.672,69.125C112.234,230.313,256,512,256,512l142.594-279.375C409.719,210.844,416,186.156,416,160C416,71.625,344.375,0,256,0z M256,256c-53.016,0-96-43-96-96s42.984-96,96-96c53,0,96,43,96,96S309,256,256,256z"/></svg>';class Request{static load(e,t){const n=new XMLHttpRequest,r=setTimeout(e=>{4!==n.readyState&&(n.abort(),t("status"))},1e4);return n.onreadystatechange=(()=>{4===n.readyState&&(clearTimeout(r),!n.status||n.status<200||n.status>299?t("status"):t(null,n))}),n.open("GET",e),n.send(null),{abort:()=>{n.abort()}}}static getText(e,t){return this.load(e,(e,n)=>{e?t(e):void 0!==n.responseText?t(null,n.responseText):t("content")})}static getXML(e,t){return this.load(e,(e,n)=>{e?t(e):void 0!==n.responseXML?t(null,n.responseXML):t("content")})}static getJSON(e,t){return this.load(e,(n,r)=>{if(n)return void t(n);if(!r.responseText)return void t("content");let i;try{i=JSON.parse(r.responseText),t(null,i)}catch(n){console.warn(`Could not parse JSON from ${e}\n${n.message}`),t("content")}})}}function pattern(e,t){return e.replace(/\{(\w+)\}/g,(e,n)=>t[n]||e)}function substituteZCoordinate(e,t){return e.map(e=>[...e,t])}function clamp(e,t,n){return Math.min(n,Math.max(e,t))}class Grid{constructor(e,t,n={},r=2){this.source=e,this.tileClass=t,this.tiles={},this.buffer=1,this.fixedZoom=n.fixedZoom,this.bounds=n.bounds||{w:-180,s:-90,e:180,n:90},this.minZoom=Math.max(parseFloat(n.minZoom||APP.minZoom),APP.minZoom),this.maxZoom=Math.min(parseFloat(n.maxZoom||APP.maxZoom),APP.maxZoom),this.maxZoom<this.minZoom&&(this.minZoom=APP.minZoom,this.maxZoom=APP.maxZoom),this.queue=[];for(let e=0;e<r;e++)this.queueNext();this.update()}getURL(e,t,n){const r="abcd"[(e+t)%4];return pattern(this.source,{s:r,x:e,y:t,z:n})}getClosestTiles(e,t){return e}mergeTiles(e,t,n){const r={},i={},o=[];let a;if(0===t||t<=this.minZoom){for(a in e)e[a][2]=t;return e}for(a in e){const s=e[a],l=(s[0]<<0)/2,u=(s[1]<<0)/2;if(void 0===r[[l,u]]){const e=getTileSizeOnScreen(l,u,t-1,APP.view.viewProjMatrix);r[[l,u]]=e<n}r[[l,u]]||void 0===i[[s[0],s[1]]]&&(i[[s[0],s[1]]]=!0,o.push([s[0],s[1],t]))}let s=[];for(a in r)if(r[a]){const e=a.split(",");s.push([parseInt(e[0]),parseInt(e[1]),t-1])}return s.length>0&&(s=this.mergeTiles(s,t-1,n)),o.concat(s)}getDistance(e,t){const n=e[0]-t[0],r=e[1]-t[1];return n*n+r*r}update(){if(APP.zoom<this.minZoom||APP.zoom>this.maxZoom)return;const e=Math.round(this.fixedZoom||APP.zoom);let t=APP.view.getViewQuad(APP.view.viewProjMatrix.data),n=project([APP.position.longitude,APP.position.latitude],1<<e);for(let n=0;n<4;n++)t[n]=getTilePositionFromLocal(t[n],e);let r=rasterConvexQuad(t);r=this.fixedZoom?this.getClosestTiles(r,n):this.mergeTiles(r,e,.5*TILE_SIZE*TILE_SIZE);const i={};r.forEach(t=>{void 0===t[2]&&(t[2]=e),i[t.join(",")]=!0}),this.visibleTiles=i;for(let e in i){const t=e.split(","),n=parseInt(t[0]),r=parseInt(t[1]),i=parseInt(t[2]);this.tiles[e]||(this.tiles[e]=new this.tileClass(n,r,i),this.queue.push(this.tiles[e]))}this.purge(i),this.queue.forEach(e=>{e.distance=this.getDistance([e.x,e.y],n)}),this.queue.sort((e,t)=>t.distance-e.distance),setTimeout(()=>{this.update()},100)}queueNext(){if(!this.queue.length)return void setTimeout(this.queueNext.bind(this),200);const e=this.queue.pop();e.load(this.getURL(e.x,e.y,e.zoom),()=>{this.queueNext()})}purge(e){const t=Math.round(APP.zoom);for(let n in this.tiles){let r=this.tiles[n];if(!e[n])if(this.fixedZoom)this.tiles[n].destroy(),delete this.tiles[n];else{if(r.zoom===t+1){if(e[[r.x/2<<0,r.y/2<<0,t].join(",")])continue}r.zoom===t-1&&(e[[2*r.x,2*r.y,t].join(",")]||e[[2*r.x+1,2*r.y,t].join(",")]||e[[2*r.x,2*r.y+1,t].join(",")]||e[[2*r.x+1,2*r.y+1,t].join(",")])||delete this.tiles[n]}}this.queue=this.queue.filter(e=>!!e)}destroy(){for(let e in this.tiles)this.tiles[e].destroy();this.tiles={},this.queue=[]}}class Tile{constructor(e,t,n){this.x=e,this.y=t,this.zoom=n,this.key=[e,t,n].join(","),this.distance=1/0}load(){}destroy(){}}class BitmapTile extends Tile{constructor(e,t,n){super(e,t,n),this.latitude=tile2lat(t,n),this.longitude=tile2lon(e,n);const r=getTileSizeInMeters(this.latitude,n),i=[r,r,0,r,0,0,0,r,0,0,0,0];this.vertexBuffer=new GLX.Buffer(3,new Float32Array(i)),this.texCoordBuffer=new GLX.Buffer(2,new Float32Array([1,0,1,1,0,0,0,1]))}load(e,t){this.texture=new GLX.texture.Image,this.texture.load(e,e=>{e&&(GL.bindTexture(GL.TEXTURE_2D,this.texture.id),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_S,GL.CLAMP_TO_EDGE),GL.texParameteri(GL.TEXTURE_2D,GL.TEXTURE_WRAP_T,GL.CLAMP_TO_EDGE),this.isReady=!0),t&&t()})}destroy(){this.vertexBuffer.destroy(),this.texCoordBuffer.destroy(),this.texture&&this.texture.destroy()}}class GeoJSONTile extends Tile{constructor(e,t,n,r){super(e,t,n),this.options=r}load(e,t){this.content=new Feature("GeoJSON",e,this.options,t)}destroy(){this.content&&this.content.destroy()}}class FeatureCollection extends Collection{constructor(){super(),this.tintCallback=(()=>{}),this.zScaleCallback=(()=>{})}setTintCallback(e){this.tintCallback=e,this.forEach(e=>{e.applyTintAndZScale()})}setZScaleCallback(e){this.zScaleCallback=e,this.forEach(e=>{e.applyTintAndZScale()})}}class Feature{constructor(e,t,n={},r=function(){}){this.type=e,this.options=n,this.callback=r,this.id=n.id,this.color=n.color,this.matrix=new GLX.Matrix,this.scale(n.scale||1),this.rotate(n.rotation||0),this.minZoom=Math.max(parseFloat(n.minZoom||MIN_ZOOM),APP.minZoom),this.maxZoom=Math.min(parseFloat(n.maxZoom||MAX_ZOOM),APP.maxZoom),this.maxZoom<this.minZoom&&(this.minZoom=MIN_ZOOM,this.maxZoom=MAX_ZOOM),this.load(t)}load(e){APP.workers.get(t=>{t.onMessage(e=>{if("error"===e)return this.callback(),void t.free();"load"!==e?(this.onLoad(e),t.free()):this.callback()}),t.postMessage({type:this.type,url:e,options:this.options})})}onLoad(e){this.longitude=e.position.longitude,this.latitude=e.position.latitude,this.metersPerLon=METERS_PER_DEGREE_LATITUDE*Math.cos(this.latitude/180*Math.PI),this.vertexBuffer=new GLX.Buffer(3,e.vertices),this.timer=setTimeout(()=>{this.normalBuffer=new GLX.Buffer(3,e.normals),this.timer=setTimeout(()=>{this.colorBuffer=new GLX.Buffer(3,e.colors),this.timer=setTimeout(()=>{this.texCoordBuffer=new GLX.Buffer(2,e.texCoords),this.timer=setTimeout(()=>{this.heightBuffer=new GLX.Buffer(1,e.heights),this.timer=setTimeout(()=>{this.pickingBuffer=new GLX.Buffer(3,e.pickingColors),this.timer=setTimeout(()=>{this.items=e.items,this.applyTintAndZScale(),APP.features.add(this),this.fade=0},20)},20)},20)},20)},20)},20)}translateBy(e=0,t=0,n=0){this.matrix.translateBy(e,t,n)}scale(e){this.matrix.scale(e,e,e)}rotate(e){this.matrix.rotateZ(-e)}getMatrix(){return this.matrix.translateTo((this.longitude-APP.position.longitude)*this.metersPerLon,(APP.position.latitude-this.latitude)*METERS_PER_DEGREE_LATITUDE,0),this.matrix}getFade(){if(this.fade>=1)return 1;APP.view.speedUp();const e=this.fade;return this.fade+=1/60,e}applyTintAndZScale(){const e=[],t=APP.features.tintCallback,n=[],r=APP.features.zScaleCallback;this.items.forEach(i=>{const o={id:i.id,properties:i.properties},a=t(o),s=a?[...Qolor.parse(a).toArray(),1]:[0,0,0,0],l=r(o);for(let t=0;t<i.vertexCount;t++)e.push(...s),n.push(l?0:1)}),this.tintBuffer=new GLX.Buffer(4,new Float32Array(e)),this.zScaleBuffer=new GLX.Buffer(1,new Float32Array(n))}destroy(){APP.features.remove(this),clearTimeout(this.timer),this.vertexBuffer&&this.vertexBuffer.destroy(),this.normalBuffer&&this.normalBuffer.destroy(),this.colorBuffer&&this.colorBuffer.destroy(),this.texCoordBuffer&&this.texCoordBuffer.destroy(),this.heightBuffer&&this.heightBuffer.destroy(),this.pickingBuffer&&this.pickingBuffer.destroy(),this.tintBuffer&&this.tintBuffer.destroy(),this.zScaleBuffer&&this.zScaleBuffer.destroy(),this.items=[]}}class MapPlane{constructor(){this.size=5e3,this.minZoom=APP.minZoom,this.maxZoom=APP.maxZoom,this.matrix=new GLX.Matrix,this.createGeometry()}createGeometry(){const e=2*this.size/50,t=[0,0,1],n=[...t,...t,...t,...t,...t,...t],r=[],i=[],o=[];for(let t=0;t<50;t++)for(let a=0;a<50;a++){const s=-this.size+t*e,l=-this.size+a*e;r.push(s,l,0,s+e,l+e,0,s+e,l,0,s,l,0,s,l+e,0,s+e,l+e,0),i.push(...n),o.push(1,1,1,1,1,1)}this.vertexBuffer=new GLX.Buffer(3,new Float32Array(r)),this.normalBuffer=new GLX.Buffer(3,new Float32Array(i)),this.zScaleBuffer=new GLX.Buffer(1,new Float32Array(o))}getFade(){return 1}getMatrix(){return this.matrix}destroy(){this.vertexBuffer.destroy(),this.normalBuffer.destroy()}}function assert(e,t){if(!e)throw t}function getNextPixel(e,t,n){const r=[e[0]<t[0]?1:-1,e[1]<t[1]?1:-1],i=n[0]+(e[0]<t[0]?1:0),o=n[1]+(e[1]<t[1]?1:0),a=(i-e[0])/(t[0]-e[0]),s=(o-e[1])/(t[1]-e[1]);return(a<=0||a>1)&&(s<=0||s>1)?[void 0,void 0]:a<=0||a>1?[n[0],n[1]+r[1]]:s<=0||s>1?[n[0]+r[0],n[1]]:a<s?[n[0]+r[0],n[1]]:[n[0],n[1]+r[1]]}function rasterTriangle(e,t,n){const r=[e,t,n];if(r.sort((e,t)=>e[1]<t[1]),e=r[0],t=r[1],n=r[2],e[1]==t[1])return rasterFlatTriangle(e,t,n);if(t[1]==n[1])return rasterFlatTriangle(t,n,e);const i=(t[1]-e[1])/(n[1]-e[1]),o=[e[0]+i*(n[0]-e[0]),t[1]];return rasterFlatTriangle(o,t,e).concat(rasterFlatTriangle(o,t,n))}function rasterFlatTriangle(e,t,n){const r=[];if(assert(e[1]===t[1],"not a flat triangle"),assert(n[1]!==e[1],"not a triangle"),assert(e[0]!==t[0],"not a triangle"),e[0]>t[0]){const n=e;e=t,t=n}let i=[n[0]<<0,n[1]<<0],o=i.slice(0);r.push(i.slice(0));const a=n[1]<e[1]?1:-1,s=i[1],l=(e[1]<<0)+a;let u,h;for(let c=s;c*a<l*a;c+=a){do{r.push(i.slice(0)),u=i,i=getNextPixel(n,e,i)}while(i[1]*a<=c*a);i=u;do{r.push(o.slice(0)),h=o,o=getNextPixel(n,t,o)}while(o[1]*a<=c*a);o=h;for(let e=i[0];e<=o[0];e++)r.push([e,c])}return r}function rasterConvexQuad(e){assert(4==e.length,"Error: Quadrilateral with more or less than four vertices");const t=rasterTriangle(e[0],e[1],e[2]),n=rasterTriangle(e[0],e[2],e[3]);return t.concat(n)}function normal(e,t,n){const r=sub3(e,t),i=sub3(t,n);return norm3([r[1]*i[2]-r[2]*i[1],r[2]*i[0]-r[0]*i[2],r[0]*i[1]-r[1]*i[0]])}function getViewQuad(e,t,n){const r=GLX.Matrix.invert(e);let i,o,a,s,l,u=getIntersectionWithXYPlane(-1,-1,r),h=getIntersectionWithXYPlane(1,-1,r),c=getIntersectionWithXYPlane(1,1,r),f=getIntersectionWithXYPlane(-1,1,r);if(u&&h)return f&&c||(l=dot2(i=norm2(sub2(a=getIntersectionWithXYPlane(-1,-.9,r),u)),n),f=add2(u,mul2scalar(i,t/l)),l=dot2(o=norm2(sub2(s=getIntersectionWithXYPlane(1,-.9,r),h)),n),c=add2(h,mul2scalar(o,t/l))),dot2(n,sub2(f,u))>t&&(l=dot2(i=norm2(sub2(f,u)),n),f=add2(u,mul2scalar(i,t/l))),dot2(n,sub2(c,h))>t&&(l=dot2(o=norm2(sub2(c,h)),n),c=add2(h,mul2scalar(o,t/l))),[u,h,c,f]}function getCoveringOrthoProjection(e,t,n,r,i){const o=transformVec3(t.data,e[0]);let a=o[0],s=o[0],l=o[1],u=o[1];return e.forEach(e=>{const n=transformVec3(t.data,e);a=Math.min(a,n[0]),s=Math.max(s,n[0]),l=Math.max(l,n[1]),u=Math.min(u,n[1])}),new GLX.Matrix.Ortho(a,s,l,u,n,r)}function transformVec3(e,t){const n=t[0]*e[0]+t[1]*e[4]+t[2]*e[8]+e[12],r=t[0]*e[1]+t[1]*e[5]+t[2]*e[9]+e[13],i=t[0]*e[2]+t[1]*e[6]+t[2]*e[10]+e[14],o=t[0]*e[3]+t[1]*e[7]+t[2]*e[11]+e[15];return[n/o,r/o,i/o]}function getIntersectionWithXYPlane(e,t,n){const r=transformVec3(n,[e,t,0]),i=sub3(transformVec3(n,[e,t,1]),r);if(i[2]>=0)return;const o=add3(r,mul3scalar(i,-r[2]/i[2]));return[o[0],o[1]]}function getTileSizeOnScreen(e,t,n,r){const i=tile2lon(e,n),o=tile2lat(t,n),a=new GLX.Matrix;a.translateBy((i-APP.position.longitude)*METERS_PER_DEGREE_LONGITUDE,(APP.position.latitude-o)*METERS_PER_DEGREE_LATITUDE,0);const s=getTileSizeInMeters(APP.position.latitude,n),l=GLX.Matrix.multiply(a,r);return getConvexQuadArea([transformVec3(l,[0,0,0]),transformVec3(l,[s,0,0]),transformVec3(l,[0,s,0]),transformVec3(l,[s,s,0])].map(e=>(e[0]=(e[0]+1)/2*APP.width,e[1]=(e[1]+1)/2*APP.height,e)))}function getTriangleArea(e,t,n){const r=len2(sub2(e,t)),i=len2(sub2(e,n)),o=len2(sub2(t,n)),a=.5*(r+i+o);return Math.sqrt(a*(a-r)*(a-i)*(a-o))}function getConvexQuadArea(e){return getTriangleArea(e[0],e[1],e[2])+getTriangleArea(e[0],e[2],e[3])}function getTileSizeInMeters(e,t){return EARTH_CIRCUMFERENCE_IN_METERS*Math.cos(e/180*Math.PI)/Math.pow(2,t)}function getPositionFromLocal(e){return{longitude:APP.position.longitude+e[0]/METERS_PER_DEGREE_LONGITUDE,latitude:APP.position.latitude-e[1]/METERS_PER_DEGREE_LATITUDE}}function getTilePositionFromLocal(e,t){const n=getPositionFromLocal(e);return project([n.longitude,n.latitude],1<<t)}function project(e,t=1){return[(e[0]/360+.5)*t,(1-Math.log(Math.tan(e[1]*Math.PI/180)+1/Math.cos(e[1]*Math.PI/180))/Math.PI)/2*t]}function tile2lon(e,t){return e/Math.pow(2,t)*360-180}function tile2lat(e,t){const n=Math.PI-2*Math.PI*e/Math.pow(2,t);return 180/Math.PI*Math.atan(.5*(Math.exp(n)-Math.exp(-n)))}function len2(e){return Math.sqrt(e[0]*e[0]+e[1]*e[1])}function dot2(e,t){return e[0]*t[0]+e[1]*t[1]}function sub2(e,t){return[e[0]-t[0],e[1]-t[1]]}function add2(e,t){return[e[0]+t[0],e[1]+t[1]]}function mul2scalar(e,t){return[e[0]*t,e[1]*t]}function norm2(e){const t=len2(e);return[e[0]/t,e[1]/t]}function dot3(e,t){return e[0]*t[0]+e[1]*t[1]+e[2]*t[2]}function sub3(e,t){return[e[0]-t[0],e[1]-t[1],e[2]-t[2]]}function add3(e,t){return[e[0]+t[0],e[1]+t[1],e[2]+t[2]]}function add3scalar(e,t){return[e[0]+t,e[1]+t,e[2]+t]}function mul3scalar(e,t){return[e[0]*t,e[1]*t,e[2]*t]}function len3(e){return Math.sqrt(e[0]*e[0]+e[1]*e[1]+e[2]*e[2])}function squaredLength(e){return e[0]*e[0]+e[1]*e[1]+e[2]*e[2]}function norm3(e){const t=len3(e);return[e[0]/t,e[1]/t,e[2]/t]}function dist3(e,t){return len3(sub3(e,t))}function equal3(e,t){return e[0]===t[0]&&e[1]===t[1]&&e[2]===t[2]}class View{getViewQuad(){return getViewQuad(this.viewProjMatrix.data,this.fogDistance+this.fogBlurDistance,this.viewDirOnMap)}start(){this.shadowsEnabled=!0,GL.depthTextureExtension||(console.warn("Shadows are disabled because your GPU does not support WEBGL_depth_texture"),this.shadowsEnabled=!1),this.setupViewport(),GL.cullFace(GL.BACK),GL.enable(GL.CULL_FACE),GL.enable(GL.DEPTH_TEST),this.Picking=new View.Picking,this.Horizon=new View.Horizon,this.Buildings=new View.Buildings,this.Markers=new View.MarkersSimple,this.Basemap=new View.Basemap,this.Overlay=new View.Overlay,this.ambientMap=new View.AmbientMap,this.blurredAmbientMap=new View.Blur,this.MapShadows=new View.MapShadows,this.shadowsEnabled&&(this.cameraGBuffer=new View.DepthNormal,this.sunGBuffer=new View.DepthNormal),this.speedUp(),this.renderFrame()}renderFrame(){APP.zoom>=APP.minZoom&&APP.zoom<=APP.maxZoom&&requestAnimationFrame(()=>{this.setupViewport(),GL.clearColor(this.fogColor[0],this.fogColor[1],this.fogColor[2],0),GL.clear(GL.COLOR_BUFFER_BIT|GL.DEPTH_BUFFER_BIT);const e=[APP.width,APP.height];if(this.shadowsEnabled){const t=this.getViewQuad();View.Sun.updateView(t),this.Horizon.updateGeometry(t),this.cameraGBuffer.render(this.viewMatrix,this.projMatrix,e,!0),this.sunGBuffer.render(View.Sun.viewMatrix,View.Sun.projMatrix,[SHADOW_DEPTH_MAP_SIZE,SHADOW_DEPTH_MAP_SIZE]),this.ambientMap.render(this.cameraGBuffer.framebuffer.depthTexture,this.cameraGBuffer.framebuffer.renderTexture,e,2),this.blurredAmbientMap.render(this.ambientMap.framebuffer.renderTexture,e),this.Buildings.render(this.sunGBuffer.framebuffer),this.Markers.render(this.sunGBuffer.framebuffer),this.Basemap.render(),GL.enable(GL.BLEND),GL.blendFuncSeparate(GL.ZERO,GL.SRC_COLOR,GL.ZERO,GL.ONE),this.MapShadows.render(this.sunGBuffer.framebuffer,.5),this.Overlay.render(this.blurredAmbientMap.framebuffer.renderTexture,e),GL.blendFuncSeparate(GL.ONE_MINUS_DST_ALPHA,GL.DST_ALPHA,GL.ONE,GL.ONE),GL.disable(GL.DEPTH_TEST),this.Horizon.render(),GL.enable(GL.DEPTH_TEST),GL.disable(GL.BLEND)}else this.Buildings.render(),this.Markers.render(),GL.enable(GL.BLEND),GL.blendFuncSeparate(GL.ONE_MINUS_DST_ALPHA,GL.DST_ALPHA,GL.ONE,GL.ONE),GL.disable(GL.DEPTH_TEST),this.Horizon.render(),GL.disable(GL.BLEND),GL.enable(GL.DEPTH_TEST),this.Basemap.render();this.isFast?this.renderFrame():setTimeout(()=>{this.renderFrame()},250)})}setupViewport(){GL.canvas.width!==APP.width&&(GL.canvas.width=APP.width),GL.canvas.height!==APP.height&&(GL.canvas.height=APP.height);const e=1.3567*Math.pow(2,APP.zoom-17),t=APP.width,n=APP.height;GL.viewport(0,0,t,n),this.viewMatrix=(new GLX.Matrix).rotateZ(APP.rotation).rotateX(APP.tilt).translateBy(0,8/e,0).translateBy(0,0,-1220/e),this.viewDirOnMap=[Math.sin(APP.rotation/180*Math.PI),-Math.cos(APP.rotation/180*Math.PI)];const r=1024/(2*Math.tan(.125*Math.PI)),i=2*Math.atan(n/2/r)/Math.PI*180;this.nearPlane=1,this.farPlane=3e4,this.projMatrix=(new GLX.Matrix).translateTo(0,-n/(2*e),0).scale(1,-1,1).multiply(new GLX.Matrix.Perspective(i,t/n,this.nearPlane,this.farPlane)).translateBy(0,-1,0),this.viewProjMatrix=new GLX.Matrix(GLX.Matrix.multiply(this.viewMatrix,this.projMatrix)),this.lowerLeftOnMap=getIntersectionWithXYPlane(-1,-1,GLX.Matrix.invert(this.viewProjMatrix.data)),void 0!==this.lowerLeftOnMap&&(this.fogDistance=5e3,this.fogBlurDistance=1e4)}speedUp(){this.isFast=!0,clearTimeout(this.speedTimer),this.speedTimer=setTimeout(()=>{this.isFast=!1},1e3)}destroy(){this.Picking.destroy(),this.Horizon.destroy(),this.Buildings.destroy(),this.Markers.destroy(),this.Basemap.destroy(),this.MapShadows.destroy(),this.cameraGBuffer&&this.cameraGBuffer.destroy(),this.sunGBuffer&&this.sunGBuffer.destroy(),this.ambientMap.destroy(),this.blurredAmbientMap.destroy(),clearTimeout(this.speedTimer)}}View.Picking=class{constructor(){this.featuresShader=new GLX.Shader({source:shaders.picking,attributes:["aPosition","aPickingColor","aZScale"],uniforms:["uModelMatrix","uMatrix","uFogDistance","uFade","uIndex"]}),this.markersShader=new GLX.Shader({source:shaders.markers_picking,attributes:["aPosition"],uniforms:["uPickingColor","uModelMatrix","uProjMatrix","uViewMatrix","uFogDistance","uIndex"]}),this.size=[512,512],this.framebuffer=new GLX.Framebuffer(this.size[0],this.size[1])}renderFeatures(){const e=this.featuresShader;e.enable(),e.setParam("uFogDistance","1f",APP.view.fogDistance);const t=[];return APP.features.forEach(n=>{if(APP.zoom<n.minZoom||APP.zoom>n.maxZoom)return;let r=n.getMatrix();r&&(t.push(n.items),e.setParam("uFade","1f",n.getFade()),e.setParam("uIndex","1f",t.length/256),e.setMatrix("uModelMatrix","4fv",r.data),e.setMatrix("uMatrix","4fv",GLX.Matrix.multiply(r,APP.view.viewProjMatrix)),e.setBuffer("aPosition",n.vertexBuffer),e.setBuffer("aPickingColor",n.pickingBuffer),e.setBuffer("aZScale",n.zScaleBuffer),GL.drawArrays(GL.TRIANGLES,0,n.vertexBuffer.numItems))}),e.disable(),t}renderMarkers(e){const t=this.markersShader;t.enable(),t.setParam("uFogDistance","1f",APP.view.fogDistance);const n=[];return APP.markers.forEach((r,i)=>{let o=r.getMatrix();n.push(r),t.setParam("uIndex","1f",(e+1)/256),t.setMatrix("uModelMatrix","4fv",o.data),t.setMatrix("uViewMatrix","4fv",APP.view.viewMatrix.data),t.setMatrix("uProjMatrix","4fv",APP.view.projMatrix.data),t.setBuffer("aPosition",r.icon.vertexBuffer);const a=[0,(255&++i)/255,(i>>8&255)/255];t.setParam("uPickingColor","3fv",a),GL.drawArrays(GL.TRIANGLES,0,r.icon.vertexBuffer.numItems)}),t.disable(),n}findFeatures(e,t,n){if(!e[t]||!e[t][n])return;const r=e[t][n],i=[],o=r.properties.building||r.id;return APP.features.forEach(e=>{e.items.forEach(e=>{e.id!==o&&e.properties.building!==o||i.some(t=>t.id===e.id)||i.push({id:e.id,properties:e.properties})})}),i}getTarget(e,t,n){requestAnimationFrame(()=>{const r={};GL.viewport(0,0,this.size[0],this.size[1]),this.framebuffer.enable(),GL.clearColor(0,0,0,1),GL.clear(GL.COLOR_BUFFER_BIT|GL.DEPTH_BUFFER_BIT);const i=this.renderFeatures(),o=this.renderMarkers(i.length);GL.viewport(0,0,APP.width,APP.height);const a=e/APP.width*this.size[0]<<0,s=t/APP.height*this.size[1]<<0,l=this.framebuffer.getPixel(a,this.size[1]-1-s);if(this.framebuffer.disable(),l){const e=l[0]-1,t=(l[1]|l[2]<<8)-1;r.features=this.findFeatures(i,e,t),r.marker=o[t]&&o[t].data}n(r)})}destroy(){this.featuresShader.destroy(),this.markersShader.destroy(),this.framebuffer.destroy()}},View.Sun=class{static setDate(e){const t=suncalc(e,APP.position.latitude,APP.position.longitude);this.direction=[-Math.sin(t.azimuth)*Math.cos(t.altitude),Math.cos(t.azimuth)*Math.cos(t.altitude),Math.sin(t.altitude)];const n=t.azimuth/(Math.PI/180),r=90-t.altitude/(Math.PI/180);this.viewMatrix=(new GLX.Matrix).rotateZ(n).rotateX(r).translateTo(0,0,-5e3).scale(1,-1,1)}static updateView(e){this.projMatrix=getCoveringOrthoProjection(substituteZCoordinate(e,0).concat(substituteZCoordinate(e,SHADOW_MAP_MAX_BUILDING_HEIGHT)),this.viewMatrix,1e3,7500),this.viewProjMatrix=new GLX.Matrix(GLX.Matrix.multiply(this.viewMatrix,this.projMatrix))}},View.Buildings=class{constructor(){this.shader=APP.view.shadowsEnabled?new GLX.Shader({source:shaders.buildings_with_shadows,attributes:["aPosition","aTexCoord","aColor","aNormal","aHeight","aTintColor","aZScale"],uniforms:["uFogDistance","uFogBlurDistance","uLightColor","uLightDirection","uLowerEdgePoint","uMatrix","uModelMatrix","uSunMatrix","uShadowTexIndex","uShadowTexDimensions","uFade","uViewDirOnMap","uWallTexIndex"]}):new GLX.Shader({source:shaders.buildings,attributes:["aPosition","aTexCoord","aColor","aNormal","aHeight","aTintColor","aZScale"],uniforms:["uModelMatrix","uViewDirOnMap","uMatrix","uNormalTransform","uLightColor","uLightDirection","uLowerEdgePoint","uFogDistance","uFogBlurDistance","uFade","uWallTexIndex"]}),this.wallTexture=new GLX.texture.Image,this.wallTexture.color([1,1,1]),this.wallTexture.load(BUILDING_TEXTURE)}render(e){const t=this.shader;if(t.enable(),t.setParam("uFogDistance","1f",APP.view.fogDistance),t.setParam("uFogBlurDistance","1f",APP.view.fogBlurDistance),t.setParam("uLightColor","3fv",[.5,.5,.5]),t.setParam("uLightDirection","3fv",View.Sun.direction),t.setParam("uLowerEdgePoint","2fv",APP.view.lowerLeftOnMap),t.setParam("uViewDirOnMap","2fv",APP.view.viewDirOnMap),!APP.view.shadowsEnabled){const e=new Float32Array([1,0,0,0,1,0,0,0,1]);t.setMatrix("uNormalTransform","3fv",e)}t.setTexture("uWallTexIndex",0,this.wallTexture),e&&(t.setParam("uShadowTexDimensions","2fv",[e.width,e.height]),t.setTexture("uShadowTexIndex",1,e.depthTexture)),APP.features.forEach(e=>{if(APP.zoom<e.minZoom||APP.zoom>e.maxZoom)return;const n=e.getMatrix();n&&(t.setParam("uFade","1f",e.getFade()),t.setMatrix("uModelMatrix","4fv",n.data),t.setMatrix("uMatrix","4fv",GLX.Matrix.multiply(n,APP.view.viewProjMatrix)),APP.view.shadowsEnabled&&t.setMatrix("uSunMatrix","4fv",GLX.Matrix.multiply(n,View.Sun.viewProjMatrix)),t.setBuffer("aPosition",e.vertexBuffer),t.setBuffer("aTexCoord",e.texCoordBuffer),t.setBuffer("aNormal",e.normalBuffer),t.setBuffer("aColor",e.colorBuffer),t.setBuffer("aHeight",e.heightBuffer),t.setBuffer("aTintColor",e.tintBuffer),t.setBuffer("aZScale",e.zScaleBuffer),GL.drawArrays(GL.TRIANGLES,0,e.vertexBuffer.numItems))}),t.disable()}destroy(){}},View.Markers=class{constructor(){this.shader=new GLX.Shader({source:shaders.markers,attributes:["aPosition"],uniforms:["uFogDistance","uFogBlurDistance","uLightColor","uLightDirection","uLowerEdgePoint","uModelMatrix","uSunMatrix","uShadowTexIndex","uShadowTexDimensions","uViewDirOnMap","uProjMatrix","uViewMatrix","uColor"]})}render(e){const t=this.shader;t.enable(),t.setParam("uFogDistance","1f",APP.view.fogDistance),t.setParam("uFogBlurDistance","1f",APP.view.fogBlurDistance),t.setParam("uLightColor","3fv",[.5,.5,.5]),t.setParam("uLightDirection","3fv",View.Sun.direction),t.setParam("uLowerEdgePoint","2fv",APP.view.lowerLeftOnMap),t.setParam("uViewDirOnMap","2fv",APP.view.viewDirOnMap),t.setParam("uShadowTexDimensions","2fv",[e.width,e.height]),t.setTexture("uShadowTexIndex",1,e.depthTexture),t.setMatrix("uViewMatrix","4fv",APP.view.viewMatrix.data),t.setMatrix("uProjMatrix","4fv",APP.view.projMatrix.data),APP.markers.forEach(e=>{const n=e.getMatrix();t.setMatrix("uModelMatrix","4fv",n.data),t.setMatrix("uSunMatrix","4fv",GLX.Matrix.multiply(n,View.Sun.viewProjMatrix)),t.setBuffer("aPosition",e.icon.vertexBuffer),t.setParam("uColor","3fv",e.color),GL.drawArrays(GL.TRIANGLES,0,e.icon.vertexBuffer.numItems)}),t.disable()}destroy(){this.shader.destroy()}},View.MarkersSimple=class{constructor(){this.shader=new GLX.Shader({source:shaders.markers_simple,attributes:["aPosition"],uniforms:["uProjMatrix","uViewMatrix","uModelMatrix","uColor"]})}render(){const e=this.shader;e.enable(),e.setMatrix("uViewMatrix","4fv",APP.view.viewMatrix.data),e.setMatrix("uProjMatrix","4fv",APP.view.projMatrix.data),APP.markers.forEach(t=>{e.setMatrix("uModelMatrix","4fv",t.getMatrix().data),e.setBuffer("aPosition",t.icon.vertexBuffer),e.setParam("uColor","3fv",t.color),GL.drawArrays(GL.TRIANGLES,0,t.icon.vertexBuffer.numItems)}),e.disable()}destroy(){this.shader.destroy()}},View.MapShadows=class{constructor(){this.shader=new GLX.Shader({source:shaders.basemap_with_shadows,attributes:["aPosition","aNormal"],uniforms:["uModelMatrix","uViewDirOnMap","uMatrix","uDirToSun","uLowerEdgePoint","uFogDistance","uFogBlurDistance","uShadowTexDimensions","uShadowStrength","uShadowTexIndex","uSunMatrix"]}),this.mapPlane=new MapPlane}render(e,t){const n=this.mapPlane;if(APP.zoom<n.minZoom||APP.zoom>n.maxZoom)return;const r=this.shader;let i;r.enable(),GL.disable(GL.CULL_FACE),r.setParam("uDirToSun","3fv",View.Sun.direction),r.setParam("uViewDirOnMap","2fv",APP.view.viewDirOnMap),r.setParam("uLowerEdgePoint","2fv",APP.view.lowerLeftOnMap),r.setParam("uFogDistance","1f",APP.view.fogDistance),r.setParam("uFogBlurDistance","1f",APP.view.fogBlurDistance),r.setParam("uShadowTexDimensions","2fv",[e.width,e.height]),r.setParam("uShadowStrength","1f",t),r.setTexture("uShadowTexIndex",0,e.depthTexture),(i=n.getMatrix())&&(r.setMatrix("uModelMatrix","4fv",i.data),r.setMatrix("uMatrix","4fv",GLX.Matrix.multiply(i,APP.view.viewProjMatrix)),r.setMatrix("uSunMatrix","4fv",GLX.Matrix.multiply(i,View.Sun.viewProjMatrix)),r.setBuffer("aPosition",n.vertexBuffer),r.setBuffer("aNormal",n.normalBuffer),GL.drawArrays(GL.TRIANGLES,0,n.vertexBuffer.numItems),r.disable())}destroy(){this.mapPlane.destroy()}},View.Basemap=class{constructor(){this.shader=new GLX.Shader({source:shaders.basemap,attributes:["aPosition","aTexCoord"],uniforms:["uViewMatrix","uModelMatrix","uTexIndex","uFogDistance","uFogBlurDistance","uLowerEdgePoint","uViewDirOnMap"]})}render(){const e=APP.basemapGrid;if(!e)return;if(APP.zoom<e.minZoom||APP.zoom>e.maxZoom)return;const t=this.shader;t.enable(),t.setParam("uFogDistance","1f",APP.view.fogDistance),t.setParam("uFogBlurDistance","1f",APP.view.fogBlurDistance),t.setParam("uLowerEdgePoint","2fv",APP.view.lowerLeftOnMap),t.setParam("uViewDirOnMap","2fv",APP.view.viewDirOnMap);const n=Math.round(APP.zoom);let r;for(let t in e.visibleTiles){if((r=e.tiles[t])&&r.isReady){this.renderTile(r);continue}const i=[r.x/2<<0,r.y/2<<0,n-1].join(",");if(e.tiles[i]&&e.tiles[i].isReady){this.renderTile(e.tiles[i]);continue}const o=[[2*r.x,2*r.y,r.zoom+1].join(","),[2*r.x+1,2*r.y,r.zoom+1].join(","),[2*r.x,2*r.y+1,r.zoom+1].join(","),[2*r.x+1,2*r.y+1,r.zoom+1].join(",")];for(let t=0;t<4;t++)e.tiles[o[t]]&&e.tiles[o[t]].isReady&&this.renderTile(e.tiles[o[t]])}t.disable()}renderTile(e){const t=this.shader,n=new GLX.Matrix;n.translateBy((e.longitude-APP.position.longitude)*METERS_PER_DEGREE_LONGITUDE,(-e.latitude+APP.position.latitude)*METERS_PER_DEGREE_LATITUDE,0),GL.enable(GL.POLYGON_OFFSET_FILL),GL.polygonOffset(MAX_USED_ZOOM_LEVEL-e.zoom,MAX_USED_ZOOM_LEVEL-e.zoom),t.setMatrix("uModelMatrix","4fv",n.data),t.setMatrix("uViewMatrix","4fv",GLX.Matrix.multiply(n,APP.view.viewProjMatrix)),t.setBuffer("aPosition",e.vertexBuffer),t.setBuffer("aTexCoord",e.texCoordBuffer),t.setTexture("uTexIndex",0,e.texture),GL.drawArrays(GL.TRIANGLE_STRIP,0,e.vertexBuffer.numItems),GL.disable(GL.POLYGON_OFFSET_FILL)}destroy(){}},View.HudRect=class{constructor(){this.shader=new GLX.Shader({source:shaders.texture,attributes:["aPosition","aTexCoord"],uniforms:["uMatrix","uTexIndex"]});const e=this.createGeometry();this.vertexBuffer=new GLX.Buffer(3,new Float32Array(e.vertices)),this.texCoordBuffer=new GLX.Buffer(2,new Float32Array(e.texCoords))}createGeometry(){const e=[],t=[];return e.push(0,0,1e-5,1,0,1e-5,1,1,1e-5),e.push(0,0,1e-5,1,1,1e-5,0,1,1e-5),t.push(.5,.5,1,.5,1,1),t.push(.5,.5,1,1,.5,1),{vertices:e,texCoords:t}}render(e){const t=this.shader;t.enable(),GL.uniformMatrix4fv(t.uniforms.uMatrix,!1,GLX.Matrix.identity().data),this.vertexBuffer.enable(),GL.vertexAttribPointer(t.attributes.aPosition,this.vertexBuffer.itemSize,GL.FLOAT,!1,0,0),this.texCoordBuffer.enable(),GL.vertexAttribPointer(t.attributes.aTexCoord,this.texCoordBuffer.itemSize,GL.FLOAT,!1,0,0),e.enable(0),GL.uniform1i(t.uniforms.uTexIndex,0),GL.drawArrays(GL.TRIANGLES,0,this.vertexBuffer.numItems),t.disable()}destroy(){this.shader.destroy(),this.vertexBuffer.destroy(),this.texCoordBuffer.destroy()}},View.DepthNormal=class{constructor(){this.shader=new GLX.Shader({source:shaders.depth_normal,attributes:["aPosition","aNormal","aZScale"],uniforms:["uMatrix","uModelMatrix","uNormalMatrix","uFade","uFogDistance","uFogBlurDistance","uViewDirOnMap","uLowerEdgePoint"]}),this.framebuffer=new GLX.Framebuffer(128,128,!0),this.mapPlane=new MapPlane}render(e,t,n){const r=this.shader,i=this.framebuffer,o=new GLX.Matrix(GLX.Matrix.multiply(e,t));i.setSize(n[0],n[1]),r.enable(),i.enable(),GL.viewport(0,0,n[0],n[1]),GL.clearColor(0,0,0,1),GL.clear(GL.COLOR_BUFFER_BIT|GL.DEPTH_BUFFER_BIT),r.setParam("uViewDirOnMap","2fv",APP.view.viewDirOnMap),r.setParam("uLowerEdgePoint","2fv",APP.view.lowerLeftOnMap),r.setParam("uFogDistance","1f",APP.view.fogDistance),r.setParam("uFogBlurDistance","1f",APP.view.fogBlurDistance),APP.features.items.concat([this.mapPlane]).forEach(t=>{if(APP.zoom<t.minZoom||APP.zoom>t.maxZoom)return;const n=t.getMatrix();n&&(r.setParam("uFade","1f",t.getFade()),r.setMatrix("uMatrix","4fv",GLX.Matrix.multiply(n,o)),r.setMatrix("uModelMatrix","4fv",n.data),r.setMatrix("uNormalMatrix","3fv",GLX.Matrix.transpose3(GLX.Matrix.invert3(GLX.Matrix.multiply(n,e)))),r.setBuffer("aPosition",t.vertexBuffer),r.setBuffer("aNormal",t.normalBuffer),r.setBuffer("aZScale",t.zScaleBuffer),GL.drawArrays(GL.TRIANGLES,0,t.vertexBuffer.numItems))}),r.disable(),i.disable(),GL.viewport(0,0,APP.width,APP.height)}destroy(){this.shader.destroy(),this.framebuffer.destroy(),this.mapPlane.destroy()}},View.AmbientMap=class{constructor(){this.shader=new GLX.Shader({source:shaders.ambient_from_depth,attributes:["aPosition","aTexCoord"],uniforms:["uInverseTexSize","uNearPlane","uFarPlane","uDepthTexIndex","uFogTexIndex","uEffectStrength"]}),this.framebuffer=new GLX.Framebuffer(128,128),this.vertexBuffer=new GLX.Buffer(3,new Float32Array([-1,-1,1e-5,1,-1,1e-5,1,1,1e-5,-1,-1,1e-5,1,1,1e-5,-1,1,1e-5])),this.texCoordBuffer=new GLX.Buffer(2,new Float32Array([0,0,1,0,1,1,0,0,1,1,0,1]))}render(e,t,n,r){const i=this.shader,o=this.framebuffer;void 0===r&&(r=1),o.setSize(n[0],n[1]),GL.viewport(0,0,n[0],n[1]),i.enable(),o.enable(),GL.clearColor(1,0,0,1),GL.clear(GL.COLOR_BUFFER_BIT|GL.DEPTH_BUFFER_BIT),i.setParam("uInverseTexSize","2fv",[1/n[0],1/n[1]]),i.setParam("uEffectStrength","1f",r),i.setParam("uNearPlane","1f",APP.view.nearPlane),i.setParam("uFarPlane","1f",APP.view.farPlane),i.setBuffer("aPosition",this.vertexBuffer),i.setBuffer("aTexCoord",this.texCoordBuffer),i.setTexture("uDepthTexIndex",0,e),i.setTexture("uFogTexIndex",1,t),GL.drawArrays(GL.TRIANGLES,0,this.vertexBuffer.numItems),i.disable(),o.disable(),GL.viewport(0,0,APP.width,APP.height)}destroy(){this.shader.destroy(),this.framebuffer.destroy(),this.vertexBuffer.destroy(),this.texCoordBuffer.destroy()}},View.Overlay=class{constructor(){const e=this.createGeometry();this.vertexBuffer=new GLX.Buffer(3,new Float32Array(e.vertices)),this.texCoordBuffer=new GLX.Buffer(2,new Float32Array(e.texCoords)),this.shader=new GLX.Shader({source:shaders.texture,attributes:["aPosition","aTexCoord"],uniforms:["uMatrix","uTexIndex"]})}createGeometry(){const e=[],t=[];return e.push(-1,-1,1e-5,1,-1,1e-5,1,1,1e-5),e.push(-1,-1,1e-5,1,1,1e-5,-1,1,1e-5),t.push(0,0,1,0,1,1),t.push(0,0,1,1,0,1),{vertices:e,texCoords:t}}render(e){const t=this.shader;t.enable(),GL.disable(GL.DEPTH_TEST),t.setMatrix("uMatrix","4fv",GLX.Matrix.identity().data),t.setBuffer("aPosition",this.vertexBuffer),t.setBuffer("aTexCoord",this.texCoordBuffer),t.setTexture("uTexIndex",0,e),GL.drawArrays(GL.TRIANGLES,0,this.vertexBuffer.numItems),GL.enable(GL.DEPTH_TEST),t.disable()}destroy(){this.vertexBuffer.destroy(),this.texCoordBuffer.destroy(),this.shader.destroy()}},View.Horizon=class{constructor(){this.HORIZON_HEIGHT=2e3,this.skyShader=new GLX.Shader({source:shaders.horizon,attributes:["aPosition"],uniforms:["uAbsoluteHeight","uMatrix","uFogColor"]}),this.v1=this.v2=this.v3=this.v4=[!1,!1,!1],this.updateGeometry([[0,0,0],[0,0,0],[0,0,0],[0,0,0]]),this.floorShader=new GLX.Shader({source:shaders.flat_color,attributes:["aPosition"],uniforms:["uColor","uMatrix"]})}updateGeometry(e){let t=[e[3][0],e[3][1],0],n=[e[2][0],e[2][1],0],r=[e[2][0],e[2][1],this.HORIZON_HEIGHT],i=[e[3][0],e[3][1],this.HORIZON_HEIGHT];if(equal3(t,this.v1)&&equal3(n,this.v2)&&equal3(r,this.v3)&&equal3(i,this.v4))return;this.v1=t,this.v2=n,this.v3=r,this.v4=i,this.skyVertexBuffer&&this.skyVertexBuffer.destroy();const o=[...t,...n,...r,...t,...r,...i];this.skyVertexBuffer=new GLX.Buffer(3,new Float32Array(o)),t=[e[0][0],e[0][1],1],n=[e[1][0],e[1][1],1],r=[e[2][0],e[2][1],1],i=[e[3][0],e[3][1],1],this.floorVertexBuffer&&this.floorVertexBuffer.destroy(),this.floorVertexBuffer=new GLX.Buffer(3,new Float32Array([...t,...n,...r,...i]))}render(){const e=this.skyShader,t=this.floorShader,n=APP.view.fogColor;e.enable(),e.setParam("uFogColor","3fv",n),e.setParam("uAbsoluteHeight","1f",10*this.HORIZON_HEIGHT),e.setMatrix("uMatrix","4fv",APP.view.viewProjMatrix.data),e.setBuffer("aPosition",this.skyVertexBuffer),GL.drawArrays(GL.TRIANGLES,0,this.skyVertexBuffer.numItems),e.disable(),t.enable(),t.setParam("uColor","4fv",[...n,1]),t.setMatrix("uMatrix","4fv",APP.view.viewProjMatrix.data),t.setBuffer("aPosition",this.floorVertexBuffer),GL.drawArrays(GL.TRIANGLE_FAN,0,this.floorVertexBuffer.numItems),t.disable()}destroy(){this.skyVertexBuffer.destroy(),this.skyShader.destroy(),this.floorVertexBuffer.destroy(),this.floorShader.destroy()}},View.Blur=class{constructor(){this.shader=new GLX.Shader({source:shaders.blur,attributes:["aPosition","aTexCoord"],uniforms:["uInverseTexSize","uTexIndex"]}),this.framebuffer=new GLX.Framebuffer(128,128),this.vertexBuffer=new GLX.Buffer(3,new Float32Array([-1,-1,1e-5,1,-1,1e-5,1,1,1e-5,-1,-1,1e-5,1,1,1e-5,-1,1,1e-5])),this.texCoordBuffer=new GLX.Buffer(2,new Float32Array([0,0,1,0,1,1,0,0,1,1,0,1]))}render(e,t){this.framebuffer.setSize(t[0],t[1]),GL.viewport(0,0,t[0],t[1]),this.shader.enable(),this.framebuffer.enable(),GL.clearColor(1,0,0,1),GL.clear(GL.COLOR_BUFFER_BIT|GL.DEPTH_BUFFER_BIT),this.shader.setParam("uInverseTexSize","2fv",[1/this.framebuffer.width,1/this.framebuffer.height]),this.shader.setBuffer("aPosition",this.vertexBuffer),this.shader.setBuffer("aTexCoord",this.texCoordBuffer),this.shader.setTexture("uTexIndex",0,e),GL.drawArrays(GL.TRIANGLES,0,this.vertexBuffer.numItems),this.shader.disable(),this.framebuffer.disable(),GL.viewport(0,0,APP.width,APP.height)}destroy(){this.shader.destroy(),this.framebuffer.destroy(),this.vertexBuffer.destroy(),this.texCoordBuffer.destroy()}},OSMBuildings.VERSION="4.0.1"}();