Make billboard certain height off terrain and Ellipsoid

CesiumJS
1

Hi, I am wondering if anyone has been able to use heightReference RELATIVE_TO_GROUND with billboards? The problem I am having is what does that then reference, because the height determines the dimensions of the billboard. Is there a altitude or something I can set to raise it off the ground?

Also if there is a setting to make sure it does this even when changing between terrain and Ellipsoid, that would be fantastic, because I currently listen for this change and do some manual configuration.

further.
I have figured the heightReference uses z value in position. But now that is working, when I set the z position = 2 from Cartesian3, and using RELATIVE_TO_GROUND height reference, I the selection box is now over the other side of the globe (i assume)

image
image1024×740 82.4 KB

2

Hi @Mitchell_Day

This Sancastle demonstrates usage of BillboardGraphics.heightReference with the terrain enabled or disabled.

bill

The vertical position of the billboard will be determined by the Entity.position property.

Hope this helps,
Sam.