Open
Description
The zoom output of cameraForBounds is inconsistent when using globe projection.
IIUC the culprit is in src/ui/map.ts:622, where cameraHelper is initialized to MercatorCameraHelper(), and only later switched to VerticalPerspectiveCameraHelper.
This also affects the map initialization: when using the bounds parameter, it will not calculate the right zoom level.
The following code reproduces the problem (observe that the console will show two different zoom levels: 1.979 and 1.840, and after 1s waiting the globe will jump to the right level):
<!DOCTYPE html>
<html lang="en">
<head>
<title>Display a globe with a vector map</title>
<meta property="og:description" content="Display a globe with a vector map." />
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel='stylesheet' href='https://unpkg.com/[email protected]/dist/maplibre-gl.css' />
<script src='https://unpkg.com/[email protected]/dist/maplibre-gl.js'></script>
<style>
body { margin: 0; padding: 0; }
html, body, #map { height: 100%; background-color:red; }
</style>
</head>
<body>
hello
<div id="map"></div>
<script>
const map = new maplibregl.Map({
container: 'map',
style: 'https://api.maptiler.com/maps/streets/style.json?key=get_your_own_OpIi9ZULNHzrESv6T2vL',
bounds: [-100,30,40,50]
});
let cam = map.cameraForBounds([-100,30,40,50])
console.log(cam.zoom);
map.on('style.load', () => {
map.setProjection({
type: 'globe', // Set projection to globe
});
let cam = map.cameraForBounds([-100,30,40,50])
console.log(cam.zoom);
setTimeout(() => {
map.jumpTo({center: cam.center, zoom:cam.zoom})
}, 1000)
});
</script>
</body>
</html>