ENH: Avoid decimation for models with small number of points

fixes #9
PerkLab · Dec 22, 2022 · d733b46 · d733b46
1 parent 8856b1e
commit d733b46
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/OpenAnatomyExport/OpenAnatomyExport.py b/OpenAnatomyExport/OpenAnatomyExport.py
@@ -408,10 +408,12 @@ def addModelToRenderer(self, inputModelNode, outputModelNode, boostGouraudColor=
       self._temporaryExportNodes.append(self._decimationParameterNode)
 
     # Quadric decimation
-    if self.reductionFactor == 0.0:
+    if (self.reductionFactor == 0.0) or (inputModelNode.GetPolyData().GetNumberOfPoints() < 50):
+      # Models with very small number of points are not decimated, as the memory saving is
+      # negligible and the models may become severely distorted.
       outputModelNode.CopyContent(inputModelNode)
     else:
-      
+
       # Temporary workaround (part 1/2):
       # VTK 9.0 OBJ writer creates invalid OBJ file if there are triangle
       # strips and normals but no texture coords.