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API > API/Plugins > API/Plugins/ModelingComponents > API/Plugins/ModelingComponents/FGroupTopologySelector
Description
Using the edges in the given selection as starting points, add any "boundary loops" containing the edges. A boundary loop is just the sequence of edges that surrounds a hole in the mesh, or the outside of an open mesh. The loop may not complete if it hits a bowtie vertex (a vertex with more than two incident boundary edges).
| Name | ExpandSelectionByBoundaryLoops |
| Type | function |
| Header File | /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/GroupTopologySelector.h |
| Include Path | #include "Selection/GroupTopologySelector.h" |
| Source | /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Private/Selection/GroupTopologySelector.cpp |
bool ExpandSelectionByBoundaryLoops
(
FGroupTopologySelection & Selection
)
true if selection was modified (i.e., were the already selected edges part of any boundary loops whose member edges were not yet all selected).
Parameters
| Name | Remarks |
|---|---|
| Selection | Selection to expand. |