Earth Height Map

youmagine

My effort at creating a height mapping system for a sphere involves using either a tetrahedron or icosahedron as the base, which is then recursively mapped onto a sphere. This process does require some memory and time, particularly when nriter is greater than or equal to 5. For anyone interested in generating their own openSCAD height map array, I recommend utilizing the bash script make_map.sh. To convert the height map into an 8-bit grayscale PGM file, use GIMP. Simply edit "file=new_heightmap.pgm" within make_map.sh to point to the correct image file. To utilize this system, follow these steps: run ./make_map.sh > map.scad. Remove the last comma on the second-to-last line. Add this code to the main SCAD file with an include statement and comment out the current include statement. Finally, adjust the scale (sc) to your liking.