Terrain CE is currently a TI-Basic experiment of mine in generating a height map and representing it like terrain in an isometric view.
Download here: https://github.com/Michael2-3B/Terrain-CE/raw/master/TERRAIN.8xp
Examples:
The generator algorithm works by providing height values in a matrix that are no more than 1 higher or lower than the neighboring nodes. The smoothing code afterwards removes one block dips and spikes.
There is also now a map editor in the program to make a custom heightmap! Check it out:
Forum Thread: https://www.cemetech.net/forum/viewtopic.php?p=285909#285909