How to create a cone by using Cesium.Geometry

hello everyone, i want to create a cone, but cesium don’t have cone in geometry,so how can i to create a cone?

You should consider creating a cone by creating a cylinder where the radius at the top is 0.0. This is shown in this sandcastle: Cesium Sandcastle

If you really want to use the Geometry class manually, then that’s a bit more effort, and I’d be curious why you want to assemble that geometry manually. The description at Geometry and Appearances · CesiumGS/cesium Wiki · GitHub is a bit out-dated, but might be a good starting point (considering that a ‘cone’ is just a ‘tetrahedron with more sides’).

thanks a lot for your reply,i got it.