Hello. I’m new to Rhino but have researched high & low & don’t understand why this keeps happening. I don’t have any trouble splitting or trimming surfaces that are planar but the moment a surface is curved, I can’t trim or split it. It’s making me crazy.
In this file I’m trying to use the “streets” layer to split the “topography” layer.
Please see file.
McCambridge_Context.3dm (6.6 MB)