I have a spreadsheet with coordinate data (lat/long) and height for the surface and the bed of a glacier. I'm looking to take this data and convert it to an .stl geometry file that I can use for modeling in other programs like COMSOL or Elmer/Ice. I have been able to plot the data using boundaryFacets and trisurf to visually get a good geometry, but how do I transfer that to an .stl?
What I've tried:
iso2mesh (surf2stl command) "wrote 0 facets" when I tried surf2stl('GeoSTL',X,Y,Z);
Using delaunayTriangulation and tetramesh gives me a shape that is not similar enough to my glacier to use.
Attached is my code and an arbitrary set of coordinates and depths to represent a glacier.