How do i make this rectangle smaller?

[shane_benlolo]

I actually found the answer to this, here is a link to where I posted the answer:

1 million billboards at 60fps

Actually after doing more testing, I found a simple solution to shrink the rectangle by using the center: const rect = Cesium.Rectangle.fromCartesianArray([ entityW._position._value, entityS._position._value, entityE._position._value, entityN._position._value, ]); const rectCenter = Cesium.Cartographic.toCartesian( Cesium.Rectangle.center(rect) ); const smallWest = new Cesium.Cartesian3( (rectCenter.x + entityW._position._value.x), …

if anyone knows how to make the rectangle shrink by a configurable amount (1/2, 1/4, etc.) please let me know as that would be extremely useful in my case