Add geometries

Thank you so much for the awesome library.

I was toying with the idea of adding geometries, e.g.: a point.

var dotGeometry = new THREE.Geometry();
dotGeometry.vertices.push(new THREE.Vector3( longitude, elevation, latitude));
var dotMaterial = new THREE.PointsMaterial( { size: 1, sizeAttenuation: false } );
var dot = new THREE.Points( dotGeometry, dotMaterial );
scene.add( dot );

However doing the above places the points way off, I assume there is some rescaling done internally but looking through the source code I cannot find out where or how.

How should I go about doing this?

[j-devel]

Being able to just get the elevation (not in meters but as on the projection) would make it much easier

I really agree with this insight.

At this moment, I am 🚧 overhauling/refining the internal implementation of this projection stuff (and officially documenting it for the next point release). I will plan to ‘upgrade’ the proj() function so it can also resolve the elevation on demand.

[j-devel]

For the moment, here’s a quick demo. Basically, we are using the getProjection() API, where

• proj() is for geo-to-WebGL coordinate mapping, and
• unitsPerMeter for scaling (e.g. of elevations).