Open CASCADE Technology  6.5.4
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Public Member Functions | Protected Attributes
ShapeAnalysis_Edge Class Reference

Tool for analyzing the edge.
Queries geometrical representations of the edge (3d curve, pcurve
on the given face or surface) and topological sub-shapes (bounding
vertices).
Provides methods for analyzing geometry and topology consistency
(3d and pcurve(s) consistency, their adjacency to the vertices).

#include <ShapeAnalysis_Edge.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC ShapeAnalysis_Edge ()
 Empty constructor; initialises Status to OK

Standard_Boolean HasCurve3d (const TopoDS_Edge &edge) const
 Tells if the edge has a 3d curve

Standard_Boolean Curve3d (const TopoDS_Edge &edge, Handle< Geom_Curve > &C3d, Standard_Real &cf, Standard_Real &cl, const Standard_Boolean orient=Standard_True) const
 Returns the 3d curve and bounding parameteres for the edge
Returns False if no 3d curve.
If <orient> is True (default), takes orientation into account:
if the edge is reversed, cf and cl are toggled

Standard_Boolean IsClosed3d (const TopoDS_Edge &edge) const
 Gives True if the edge has a 3d curve, this curve is closed,
and the edge has the same vertex at start and end

Standard_Boolean HasPCurve (const TopoDS_Edge &edge, const TopoDS_Face &face) const
 Tells if the Edge has a pcurve on the face.

Standard_Boolean HasPCurve (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location) const
 Tells if the edge has a pcurve on the surface (with location).

Standard_Boolean PCurve (const TopoDS_Edge &edge, const TopoDS_Face &face, Handle< Geom2d_Curve > &C2d, Standard_Real &cf, Standard_Real &cl, const Standard_Boolean orient=Standard_True) const
Standard_Boolean PCurve (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location, Handle< Geom2d_Curve > &C2d, Standard_Real &cf, Standard_Real &cl, const Standard_Boolean orient=Standard_True) const
 Returns the pcurve and bounding parameteres for the edge
lying on the surface.
Returns False if the edge has no pcurve on this surface.
If <orient> is True (default), takes orientation into account:
if the edge is reversed, cf and cl are toggled

Standard_Boolean BoundUV (const TopoDS_Edge &edge, const TopoDS_Face &face, gp_Pnt2d &first, gp_Pnt2d &last) const
Standard_Boolean BoundUV (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location, gp_Pnt2d &first, gp_Pnt2d &last) const
 Returns the ends of pcurve
Calls method PCurve with <orient> equal to True

Standard_Boolean IsSeam (const TopoDS_Edge &edge, const TopoDS_Face &face) const
Standard_Boolean IsSeam (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location) const
 Returns True if the edge has two pcurves on one surface

TopoDS_Vertex FirstVertex (const TopoDS_Edge &edge) const
 Returns start vertex of the edge (taking edge orientation
into account).

TopoDS_Vertex LastVertex (const TopoDS_Edge &edge) const
 Returns end vertex of the edge (taking edge orientation
into account).

Standard_Boolean GetEndTangent2d (const TopoDS_Edge &edge, const TopoDS_Face &face, const Standard_Boolean atEnd, gp_Pnt2d &pos, gp_Vec2d &tang, const Standard_Real dparam=0.0) const
Standard_Boolean GetEndTangent2d (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location, const Standard_Boolean atEnd, gp_Pnt2d &pos, gp_Vec2d &tang, const Standard_Real dparam=0.0) const
 Returns tangent of the edge pcurve at its start (if atEnd is
False) or end (if True), regarding the orientation of edge.
If edge is REVERSED, tangent is reversed before return.
Returns True if pcurve is available and tangent is computed
and is not null, else False.

Standard_Boolean CheckVerticesWithCurve3d (const TopoDS_Edge &edge, const Standard_Real preci=-1, const Standard_Integer vtx=0)
 Checks the start and/or end vertex of the edge for matching
with 3d curve with the given precision.
<vtx> = 1 : start vertex only
<vtx> = 2 : end vertex only
<vtx> = 0 : both (default)
If preci < 0 the vertices are considered with their own
tolerances, else with the given <preci>.

Standard_Boolean CheckVerticesWithPCurve (const TopoDS_Edge &edge, const TopoDS_Face &face, const Standard_Real preci=-1, const Standard_Integer vtx=0)
Standard_Boolean CheckVerticesWithPCurve (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location, const Standard_Real preci=-1, const Standard_Integer vtx=0)
 Checks the start and/or end vertex of the edge for matching
with pcurve with the given precision.
<vtx> = 1 : start vertex
<vtx> = 2 : end vertex
<vtx> = 0 : both
If preci < 0 the vertices are considered with their own
tolerances, else with the given <preci>.

Standard_Boolean CheckVertexTolerance (const TopoDS_Edge &edge, const TopoDS_Face &face, Standard_Real &toler1, Standard_Real &toler2)
Standard_Boolean CheckVertexTolerance (const TopoDS_Edge &edge, Standard_Real &toler1, Standard_Real &toler2)
 Checks if it is necessary to increase tolerances of the edge
vertices to comprise the ends of 3d curve and pcurve on
the given face (first method) or all pcurves stored in an edge
(second one)
toler1 returns necessary tolerance for first vertex,
toler2 returns necessary tolerance for last vertex.

Standard_Boolean CheckCurve3dWithPCurve (const TopoDS_Edge &edge, const TopoDS_Face &face)
Standard_Boolean CheckCurve3dWithPCurve (const TopoDS_Edge &edge, const Handle< Geom_Surface > &surface, const TopLoc_Location &location)
 Checks mutual orientation of 3d curve and pcurve on the
analysis of curves bounding points

Standard_Boolean Status (const ShapeExtend_Status status) const
 Returns the status (in the form of True/False) of last Check

Standard_Boolean CheckSameParameter (const TopoDS_Edge &edge, Standard_Real &maxdev, const Standard_Integer NbControl=23)
 Checks the edge to be SameParameter.
Calculates the maximal deviation between 3d curve and each
pcurve of the edge on <NbControl> equidistant points (the same
algorithm as in BRepCheck; default value is 23 as in BRepCheck).
This deviation is returned in <maxdev> parameter.
If deviation is greater than tolerance of the edge (i.e.
incorrect flag) returns False, else returns True.

Standard_Boolean CheckOverlapping (const TopoDS_Edge &theEdge1, const TopoDS_Edge &theEdge2, Standard_Real &theTolOverlap, const Standard_Real theDomainDist=0.0)
 Checks the first edge is overlapped with second edge.
If distance between two edges is less then theTolOverlap
edges is overlapped.
theDomainDis - length of part of edges on wich edges is overlapped.

Protected Attributes

Standard_Integer myStatus

Constructor & Destructor Documentation


Member Function Documentation

Standard_Boolean ShapeAnalysis_Edge::BoundUV ( const TopoDS_Edge edge,
const TopoDS_Face face,
gp_Pnt2d first,
gp_Pnt2d last 
) const
Standard_Boolean ShapeAnalysis_Edge::BoundUV ( const TopoDS_Edge edge,
const Handle< Geom_Surface > &  surface,
const TopLoc_Location location,
gp_Pnt2d first,
gp_Pnt2d last 
) const
Standard_Boolean ShapeAnalysis_Edge::CheckOverlapping ( const TopoDS_Edge theEdge1,
const TopoDS_Edge theEdge2,
Standard_Real theTolOverlap,
const Standard_Real  theDomainDist = 0.0 
)
Standard_Boolean ShapeAnalysis_Edge::GetEndTangent2d ( const TopoDS_Edge edge,
const Handle< Geom_Surface > &  surface,
const TopLoc_Location location,
const Standard_Boolean  atEnd,
gp_Pnt2d pos,
gp_Vec2d tang,
const Standard_Real  dparam = 0.0 
) const

Field Documentation


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