BRepGraph_Tool::CoEdge Class Reference

CoEdge (half-edge) parametric curve accessors. More...

#include <BRepGraph_Tool.hxx>

Static Public Member Functions
static TopAbs_Orientation	Orientation (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the coedge orientation relative to its parent edge.
static bool	IsReversed (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns true if the coedge is REVERSED relative to its parent edge. Convenience shortcut for Orientation(...) == TopAbs_REVERSED.
static BRepGraph_EdgeId	EdgeOf (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the parent edge definition id this coedge uses.
static BRepGraph_FaceId	FaceOf (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the owning face definition id for this coedge.
static BRepGraph_CoEdgeId	SeamPair (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the seam-pair coedge for closed/seam edges.
static bool	IsSeam (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns true if this coedge is one half of a seam pair.
static bool	HasPCurve (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns true if the coedge has a PCurve representation.
static bool	SameParameter (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns true if the coedge's PCurve parameter matches the 3D curve.
static bool	SameRange (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns true if the coedge's PCurve range equals the 3D curve range.
static const occ::handle< Geom2d_Curve > &	PCurve (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the raw PCurve handle by coedge identifier (no Location - UV space).
static Geom2dAdaptor_Curve	PCurveAdaptor (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns a PCurve adaptor by coedge identifier. If the coedge has a stored PCurve (Curve2DRepIdx >= 0), returns it directly. Otherwise, for planar face surfaces, computes the PCurve on-the-fly by projecting the edge's 3D curve onto the plane (CurveOnPlane), mirroring the behavior of BRep_Tool::CurveOnSurface for planar faces without stored PCurves.
static Geom2dAdaptor_Curve	PCurveAdaptor (const BRepGraph &theGraph, const CoEdgeUsage &theRef)
	Returns a PCurve adaptor from a CoEdgeUsage.
static std::pair< gp_Pnt2d, gp_Pnt2d >	UVPoints (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the UV endpoints from a CoEdge as (UV1, UV2).
static std::pair< double, double >	Range (const BRepGraph &theGraph, const BRepGraph_CoEdgeId theCoEdge)
	Returns the PCurve parameter range as (first, last).

Detailed Description

CoEdge (half-edge) parametric curve accessors.

Provides PCurve retrieval, adaptor construction, UV endpoint access, and parameter range queries for coedge definitions.

Member Function Documentation

EdgeOf()

static BRepGraph_EdgeId BRepGraph_Tool::CoEdge::EdgeOf ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the parent edge definition id this coedge uses.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

parent edge id (invalid for removed coedges)

FaceOf()

static BRepGraph_FaceId BRepGraph_Tool::CoEdge::FaceOf ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the owning face definition id for this coedge.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

owning face id (invalid for free-wire coedges)

HasPCurve()

static bool BRepGraph_Tool::CoEdge::HasPCurve ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns true if the coedge has a PCurve representation.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

true if PCurve exists

IsReversed()

static bool BRepGraph_Tool::CoEdge::IsReversed ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns true if the coedge is REVERSED relative to its parent edge. Convenience shortcut for Orientation(...) == TopAbs_REVERSED.

IsSeam()

static bool BRepGraph_Tool::CoEdge::IsSeam ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns true if this coedge is one half of a seam pair.

Orientation()

static TopAbs_Orientation BRepGraph_Tool::CoEdge::Orientation ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the coedge orientation relative to its parent edge.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

orientation enum

PCurve()

static const occ::handle< Geom2d_Curve > & BRepGraph_Tool::CoEdge::PCurve ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the raw PCurve handle by coedge identifier (no Location - UV space).

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

curve handle, or null handle if no PCurve

PCurveAdaptor() [1/2]

static Geom2dAdaptor_Curve BRepGraph_Tool::CoEdge::PCurveAdaptor ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns a PCurve adaptor by coedge identifier. If the coedge has a stored PCurve (Curve2DRepIdx >= 0), returns it directly. Otherwise, for planar face surfaces, computes the PCurve on-the-fly by projecting the edge's 3D curve onto the plane (CurveOnPlane), mirroring the behavior of BRep_Tool::CurveOnSurface for planar faces without stored PCurves.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

2D curve adaptor, or empty adaptor if no PCurve and surface is not planar

PCurveAdaptor() [2/2]

static Geom2dAdaptor_Curve BRepGraph_Tool::CoEdge::PCurveAdaptor ( const BRepGraph & theGraph, const CoEdgeUsage & theRef )

static

Returns a PCurve adaptor from a CoEdgeUsage.

Parameters

[in]	theGraph	source graph
[in]	theRef	coedge incidence reference

Returns

2D curve adaptor

Range()

static std::pair< double, double > BRepGraph_Tool::CoEdge::Range ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the PCurve parameter range as (first, last).

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

pair of (first, last) parameters

SameParameter()

static bool BRepGraph_Tool::CoEdge::SameParameter ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns true if the coedge's PCurve parameter matches the 3D curve.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

true if same parameter

SameRange()

static bool BRepGraph_Tool::CoEdge::SameRange ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns true if the coedge's PCurve range equals the 3D curve range.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

true if same range

SeamPair()

static BRepGraph_CoEdgeId BRepGraph_Tool::CoEdge::SeamPair ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the seam-pair coedge for closed/seam edges.

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

paired coedge id, or invalid if this coedge is not a seam half

UVPoints()

static std::pair< gp_Pnt2d, gp_Pnt2d > BRepGraph_Tool::CoEdge::UVPoints ( const BRepGraph & theGraph, const BRepGraph_CoEdgeId theCoEdge )

static

Returns the UV endpoints from a CoEdge as (UV1, UV2).

Parameters

[in]	theGraph	source graph
[in]	theCoEdge	typed coedge definition identifier

Returns

pair of 2D points at parameter first and last

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The documentation for this class was generated from the following file:

• BRepGraph_Tool.hxx