Camera setView is not behaving as expected on SceneMode 3D

CesiumJS
1

Hi.

I’m trying to zoom at the boundaries of a WMS layer. After some searching I found this solution:

viewer.camera.setView({

destination: new Cesium.Rectangle.fromDegrees(bbox.left, bbox.bottom, bbox.right, bbox.top)

});

It works well when the SceneMode is 2D, but on 3D the zoom is larger than expected.

My suspections is that the setView is not considering the spherical projection,

I had a silimilar issue on getting coordinates, but I solved it using a GeographicProjection to calculate the values.

2d:

3d:

2

Hello,

Could you tell me what the coordinates are so we can test? The views I’ve seen line up for most rectangles.

Thanks,

Hannah

3

Yes, the coordinates are: west:-45.977340999999605, south: -21.417668000000273, east:-45.96351400000036, north:-21.403251000000008 (WGS84).

Thanks in advance.

4

Thanks for the additional info. However, I wasn’t able to reproduce this problem. Here is the code example I tested with:

var viewer = new Cesium.Viewer(‘cesiumContainer’);

var west = -45.977340999999605;
var south = -21.417668000000273;
var east = -45.96351400000036;
var north = -21.403251000000008;
var rectangle = new Cesium.Rectangle.fromDegrees(west, south, east, north);
viewer.entities.add({
rectangle : {
coordinates: rectangle,
fill: false,
outline : true,
outlineColor: Cesium.Color.WHITE
}
});

Sandcastle.addToolbarButton(‘Set View’, function() {
viewer.camera.setView({
destination: rectangle
});
});

``

I added a rectangle so you can see where the bounds are, and the camera includes the whole thing in both 2D and 3D for me. I tried different screen sizes as well and got the same result.

What version of Cesium are you using? Are there any other steps to reproduce the problem?

Best,

Hannah

5

Oh, sorry I forgot to metion I’m using a terrain provider.

viewer.terrainProvider = new Cesium.CesiumTerrainProvider({
url : ‘//assets.agi.com/stk-terrain/world’
});

``

The problem happens when set it on the viewer.

6

***Cesium version 1.27

7

Okay, that makes sense then. The function that finds the camera rectangle doesn’t account for terrain. I’ve filed an issue here for us to consider: https://github.com/AnalyticalGraphicsInc/cesium/issues/4807

Best,

Hannah

8

Thanks Hannah.