Graph-to-graph deep copy. More...

#include <BRepGraph_Copy.hxx>

Static Public Member Functions
static BRepGraph	Perform (const BRepGraph &theGraph, const bool theCopyGeom=true)
	Copy the entire graph.

static BRepGraph	CopyNode (const BRepGraph &theGraph, const BRepGraph_NodeId theNodeId, const bool theCopyGeom=true, const bool theCopyMesh=true, const bool theReserveCache=false)
	Copy a single node sub-graph of any kind (Face, Shell, Solid, Wire, Edge, Vertex, etc.). The new graph contains only the specified node and all entities it references.

Detailed Description

Graph-to-graph deep copy.

Produces a new BRepGraph from an existing one in a single bottom-up pass, avoiding the 5-7 traversals of BRepTools_Modifier used by BRepBuilderAPI_Copy.

Two modes:

theCopyGeom = true (deep): geometry handles are cloned, result is fully independent.
theCopyGeom = false (light): geometry handles are shared, only topology is duplicated.

Note: Unlike in-place mutation algorithms (Sewing, Deduplicate) which return a Result struct with diagnostics, Copy and Transform return a BRepGraph directly because they produce new graphs. Check IsDone() on the returned graph for success.

Typical usage

BRepGraph aGraph;
BRepGraph_Builder::Add(aGraph, myShape);
BRepGraph aCopy = BRepGraph_Copy::Perform(aGraph);
TopoDS_Shape aShape = aCopy.Shapes().Shape();

Member Function Documentation

◆ CopyNode()

static BRepGraph BRepGraph_Copy::CopyNode	(	const BRepGraph &	theGraph,
		const BRepGraph_NodeId	theNodeId,
		const bool	theCopyGeom = true,
		const bool	theCopyMesh = true,
		const bool	theReserveCache = false )

static

Copy a single node sub-graph of any kind (Face, Shell, Solid, Wire, Edge, Vertex, etc.). The new graph contains only the specified node and all entities it references.

Parameters

[in]	theGraph	a pre-built BRepGraph
[in]	theNodeId	node identifier (any kind)
[in]	theCopyGeom	if true, geometry handles are deep-copied
[in]	theCopyMesh	if true, cached mesh entries are propagated to the result; if false, mesh references are dropped on copied faces
[in]	theReserveCache	if true, pre-allocates transient cache

Returns: a new BRepGraph containing only the specified sub-graph

◆ Perform()

static BRepGraph BRepGraph_Copy::Perform	(	const BRepGraph &	theGraph,
		const bool	theCopyGeom = true )