Center postion of viewport

CesiumJS
1

Hi,

I am trying to get center position of the viewport.

Let me explain what i am trying to acheive whenever I do drag using mouse pointer or zoom in on the cesium globe it should give center position of the viewport.

Can anyone help?

Thanks in advance.

Tejas

2

You’d want to pull the viewer.scene.canvas object and get half it’s height and width, then load that into a viewer.scene.camera.getPickray() to return a cartesian3 of the center of the viewport.

You can find a somewhat similar example in Terria.js, shoutout to @NICTA and Kevin for full credit:

https://github.com/TerriaJS/terriajs/blob/e8c46d64e225428265f91f0f9c06bb0bb482855c/lib/ViewModels/DistanceLegendViewModel.js#L100-L104