change subsurface_vertex_mask to not use zeros at incorrect locations

gallantlab · Jul 18, 2018 · 008c491 · 008c491
1 parent 13054a2
commit 008c491
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/cortex/polyutils/subsurface.py b/cortex/polyutils/subsurface.py
@@ -64,7 +64,8 @@ def create_subsurface(self, vertex_mask=None, polygon_mask=None):
         vertex_mask[self.polys[polygon_mask].flat] = True
 
         # build map from old index to new index
-        vertex_map = np.zeros(self.pts.shape[0], dtype=np.int)
+        # vertices not in the subsurface are represented with large numbers
+        vertex_map = np.ones(self.pts.shape[0], dtype=np.int) * np.iinfo(np.int32).max
         vertex_map[vertex_mask] = range(vertex_mask.sum())
 
         # reindex vertices and polygons