how to map lon & lat to bound in VoxelPrimitive

CesiumJS
1

https://sandcastle.cesium.com/?src=Voxels.html&label=All
in this example ,bound shows in image,if create a small area like lon[121,122],how to set the bound

image
image976×234 3.25 KB

2

is a relation in Model/View Matrix?can you give me some tips or some article

3

Hi @chen21439, the bounds of the voxel are set in the voxel data provider. See this updated Sandcastle for an example setting the provider bounds to lon[121,122], lat[31,32].

      const provider = new ProceduralSingleTileVoxelProvider(
        Cesium.VoxelShapeType.ELLIPSOID
      );
      provider.minBounds.x = Cesium.Math.toRadians(121);
      provider.maxBounds.x = Cesium.Math.toRadians(122);
      provider.minBounds.y = Cesium.Math.toRadians(31);
      provider.maxBounds.y = Cesium.Math.toRadians(32);
      provider.minBounds.z = -10000.0;
      provider.maxBounds.z = 20000.0;
      const primitive = createPrimitive(
        provider,
        customShaderColor,
        modelMatrix
      );