I’ve searched high and low to no avail looking for any existing tools, scripts, ArcGIS geoprocessing steps that will output an adjacency table something like this:
VALUE,ADJ_VALUE,LENGTH_EDGE (m) 1,2,45 1,3,90 1,9,30 1,14,150 2,1,45 2,11,30 2,16,45 2,3,90 3,1,90 3,2,90
based on a region grouped raster layer. I’m aware of existing tools and methodologies out there to accomplish this in vector, but my dataset is massive and would require that I break into smaller chunks if I convert to polygon. I would like to avoid having to do this, if possible, by generating an adjacency table straight from the region grouped raster.