AngularJS-d3-scatterplot-demo/scatterdirective.js at master · rishabh92/AngularJS-d3-scatterplot-demo · GitHub

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(function(angular) {
  'use strict';
angular.module('scatterchart', [])
.directive("scatterChart",function(){
    return {
      restrict:'E',
      scope: {
        data: '='
      },
      link: function(scope, element, attrs) {

        var margin = {top: 20, right: 20, bottom: 70, left: 40},
            width = 700 - margin.left - margin.right,
            height = 680 - margin.top - margin.bottom;
        var xAxis,yAxis;
        var i = 4;
        var rectangle,rectangle1,label1, label2, label0, labely0, labely1, labely2;
        var xScale = d3.scale.linear().range([0, width]);
        var yScale = d3.scale.linear().range([height, 0]);
                    xScale.domain([0, 100]);
                    yScale.domain([0, 100]);


        // tooltip
        var tip = d3.tip()
            .attr("class", "d3-tip")
            .offset([-10, 0])
            .html(function(d) {
              return  d.Subject + "<br>" + Math.round(d.Marks1*10000)/10000 + ", " + Math.round(d.Marks2*10000)/10000;
            });

        var zoomBeh = d3.behavior.zoom()
            .x(xScale)
            .y(yScale)
            .scaleExtent([-10, 100])
            .on("zoom", zoom);


        var svg = d3.select("#scatter").append("svg")
          .attr("width", width + margin.left + margin.right)
          .attr("height", height + margin.top + margin.bottom)
          .append("g")
          .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
          .call(zoomBeh);


        svg.call(tip);
        scope.$watch('data', function(newVals, oldVals) {
          scope.render(newVals);
        }, true);

        scope.render = function(data){

        // setup x
        svg.selectAll("*").remove();


        var xValue = function(d) { return d.Marks1;}, // data -> value
            xMap = function(d) { return xScale(xValue(d));}; // data -> display
         xAxis = d3.svg.axis().scale(xScale).orient("bottom").tickSize(-height);;

        // setup y
        var yValue = function(d) { return d["Marks2"];}, // data -> value
            yMap = function(d) { return yScale(yValue(d));} // data -> display
         yAxis = d3.svg.axis().scale(yScale).orient("left").tickSize(-width);


        // setup fill color
        var cValue = function(d) { return d.Subject;},
            color = d3.scale.category10();


        // rectangle for smooth zoom
        var rect2 = svg.append("rect")
            .attr("width", width)
            .attr("height", height)

        // x-axis
        svg.append("g")
            .attr("class", "x axis")
            .attr("transform", "translate(0," + height + ")")
            .call(xAxis)
            .append("text")
            .attr("class", "label")
            .attr("x", width)
            .attr("y", -6)
            .attr("text-anchor", "end")
            .text("Marks1")

          // y-axis
          svg.append("g")
              .attr("class", "y axis")
              .call(yAxis)
            .append("text")
              .attr("class", "label")
              .attr("transform", "rotate(-90)")
              .attr("y", 6)
              .attr("dy", ".71em")
              .style("text-anchor", "end")
              .text("Marks2")


          var objects = svg.append("svg")
                .classed("objects", true)
                .attr("width", width)
                .attr("height", height);

          // draw dots

          objects.selectAll(".dot")
              .data(data)
              .enter().append("circle")
              .attr("class", "dot")
            //  .attr("cx", function (d) { console.log(d.MArks1)return d.Marks1; })
            //  .attr("cy", function (d) { return d.Marks2; })
              .attr("r", 5)
              .attr("transform", transform)
              .style("fill", function(d) { return color(cValue(d));})
              .on("mouseover", tip.show)
              .on("mouseout", tip.hide);

          }
          // zoom function
          function zoom() {
           console.log("here3")
            svg.select(".x.axis").call(xAxis);
            svg.select(".y.axis").call(yAxis);
            svg.selectAll(".dot")
                .attr("transform", transform);


          }

          // transale the dots when zoom
          function transform(d) {
              return "translate(" + xScale(d.Marks1) + "," + yScale(d.Marks2) + ")";
          }

        }
    }

  });
})(window.angular);