I am trying to build a code which can take a .tiff file with volumetric data, get a 3-D mesh representation and export that as a .stl geometry for use in COMSOL multiphysics.
I have gotten to the point where I have the face and vertices data from the isosurface function, and want to create a triangulation object(?) for use in stlwrite to export this format. However, when I try to use the face and vertices data, I get the error:
"
Error using indexing
The input must contain index values; entries with Inf, NaN, zero, negative, or fractional parts are not permitted.
Error in testing_dxl_file_conversion (line 62)
triangulationObj = triangulation(faces, vertices);
"
Code attached! It starts with a script to generate a test .tiff file composed of spheres within a volume (originally thought .dxf file conversion was possible, hence the name of the file).
