virtual void ComputeIndexSets ( const [FNamedDataMap](API\Plugins\GeometryFlowCore\FNamedDataMap) & DatasIn, const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & Mesh, [FIndexSets](API\Plugins\GeometryFlowMeshProcessing\DataTypes\FIndexSets) & SetsOut )