I’ve shared bits and pieces of tree interpolation code (3D tree canopies from LiDAR) on this blog for a few years. I finally got things together enough to post some of this code on GitHub. Currently it has a LasTools dependency, so you’ll have to watch for that license gotcha, but I’ll be phasing out that dependency in future versions.
In the future, I’ll do the same with my viewshed work, and some other projects.
Enjoy!