Grasshopper File and Geometry Import Script

gistfile1.py

import Rhino

# read geometry out of 3dm files and filter by layernames
if DoImport and FilePaths and LayerNames:
    geometry = []
    for filepath in FilePaths:
        model = Rhino.FileIO.File3dm.Read(filepath)
        if not model: continue
        for layer in LayerNames:
            objs = model.Objects.FindByLayer(layer)
            for obj in objs:
                geom = obj.Geometry
                geom.EnsurePrivateCopy()
                geometry.append(geom)
        # models can take up a considerable amount of
        # memory that we don't need, so get rid of it
        # after copying the geometry we want out of it
        model.Dispose()