Open CASCADE Technology
7.7.0
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The class contains handy static functions dealing with the topology This is the copy of BOPTools_AlgoTools3D.cdl file. More...
#include <BOPTools_AlgoTools3D.hxx>
Static Public Member Functions | |
static Standard_Boolean | DoSplitSEAMOnFace (const TopoDS_Edge &theESplit, const TopoDS_Face &theFace) |
Makes the edge <theESplit> seam edge for the face <theFace> basing on the surface properties (U and V periods) More... | |
static Standard_Boolean | DoSplitSEAMOnFace (const TopoDS_Edge &theEOrigin, const TopoDS_Edge &theESplit, const TopoDS_Face &theFace) |
Makes the split edge <theESplit> seam edge for the face <theFace> basing on the positions of 2d curves of the original edge <theEOrigin>. More... | |
static void | GetNormalToFaceOnEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, const Standard_Real aT, gp_Dir &aD, const Handle< IntTools_Context > &theContext=Handle< IntTools_Context >()) |
Computes normal to the face <aF> for the point on the edge <aE> at parameter <aT>. <theContext> - storage for caching the geometrical tools. More... | |
static void | GetNormalToFaceOnEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, gp_Dir &aD, const Handle< IntTools_Context > &theContext=Handle< IntTools_Context >()) |
Computes normal to the face <aF> for the point on the edge <aE> at arbitrary intermediate parameter. <theContext> - storage for caching the geometrical tools. More... | |
static Standard_Integer | SenseFlag (const gp_Dir &aNF1, const gp_Dir &aNF2) |
Returns 1 if scalar product aNF1* aNF2>0. Returns 0 if directions aNF1 aNF2 coincide Returns -1 if scalar product aNF1* aNF2<0. More... | |
static Standard_Boolean | GetNormalToSurface (const Handle< Geom_Surface > &aS, const Standard_Real U, const Standard_Real V, gp_Dir &aD) |
Compute normal <aD> to surface <aS> in point (U,V) Returns TRUE if directions aD1U, aD1V coincide. More... | |
static Standard_Boolean | GetApproxNormalToFaceOnEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, const Standard_Real aT, gp_Pnt &aPx, gp_Dir &aD, const Handle< IntTools_Context > &theContext) |
Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>. Output: aPx - the 3D-point where the normal computed aD - the normal; Warning: The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal); The point is computed using PointNearEdge function, with the shifting value BOPTools_AlgoTools3D::MinStepIn2d(), from the edge, but if this value is too big, the point will be computed using Hatcher (PointInFace function). Returns TRUE in case of success. More... | |
static Standard_Boolean | GetApproxNormalToFaceOnEdge (const TopoDS_Edge &theE, const TopoDS_Face &theF, const Standard_Real aT, gp_Pnt &aP, gp_Dir &aDNF, const Standard_Real aDt2D) |
Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>. Output: aPx - the 3D-point where the normal computed aD - the normal; Warning: The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal); The point is computed using PointNearEdge function with the shifting value <aDt2D> from the edge; No checks on this value will be done. Returns TRUE in case of success. More... | |
static Standard_Boolean | GetApproxNormalToFaceOnEdge (const TopoDS_Edge &theE, const TopoDS_Face &theF, const Standard_Real aT, const Standard_Real aDt2D, gp_Pnt &aP, gp_Dir &aDNF, const Handle< IntTools_Context > &theContext) |
Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>. Output: aPx - the 3D-point where the normal computed aD - the normal; Warning: The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal); The point is computed using PointNearEdge function with the shifting value <aDt2D> from the edge, but if this value is too big the point will be computed using Hatcher (PointInFace function). Returns TRUE in case of success. More... | |
static Standard_Integer | PointNearEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, const Standard_Real aT, const Standard_Real aDt2D, gp_Pnt2d &aP2D, gp_Pnt &aPx, const Handle< IntTools_Context > &theContext) |
Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is <aDt2D> If the value of shifting is too big the point will be computed using Hatcher (PointInFace function). Returns error status: 0 - in case of success; 1 - <aE> does not have 2d curve on the face <aF>; 2 - the computed point is out of the face. More... | |
static Standard_Integer | PointNearEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, const Standard_Real aT, const Standard_Real aDt2D, gp_Pnt2d &aP2D, gp_Pnt &aPx) |
Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is <aDt2D>. No checks on this value will be done. Returns error status: 0 - in case of success; 1 - <aE> does not have 2d curve on the face <aF>. More... | |
static Standard_Integer | PointNearEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, const Standard_Real aT, gp_Pnt2d &aP2D, gp_Pnt &aPx, const Handle< IntTools_Context > &theContext) |
Computes the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is dt2D=BOPTools_AlgoTools3D::MinStepIn2d() If the value of shifting is too big the point will be computed using Hatcher (PointInFace function). Returns error status: 0 - in case of success; 1 - <aE> does not have 2d curve on the face <aF>; 2 - the computed point is out of the face. More... | |
static Standard_Integer | PointNearEdge (const TopoDS_Edge &aE, const TopoDS_Face &aF, gp_Pnt2d &aP2D, gp_Pnt &aPx, const Handle< IntTools_Context > &theContext) |
Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at arbitrary parameter towards to the material of the face <aF>. The value of shifting in 2D is dt2D=BOPTools_AlgoTools3D::MinStepIn2d(). If the value of shifting is too big the point will be computed using Hatcher (PointInFace function). Returns error status: 0 - in case of success; 1 - <aE> does not have 2d curve on the face <aF>; 2 - the computed point is out of the face. More... | |
static Standard_Real | MinStepIn2d () |
Returns simple step value that is used in 2D-computations = 1.e-5. More... | |
static Standard_Boolean | IsEmptyShape (const TopoDS_Shape &aS) |
Returns TRUE if the shape <aS> does not contain geometry information (e.g. empty compound) More... | |
static void | OrientEdgeOnFace (const TopoDS_Edge &aE, const TopoDS_Face &aF, TopoDS_Edge &aER) |
Get the edge <aER> from the face <aF> that is the same as the edge <aE> More... | |
static Standard_Integer | PointInFace (const TopoDS_Face &theF, gp_Pnt &theP, gp_Pnt2d &theP2D, const Handle< IntTools_Context > &theContext) |
Computes arbitrary point <theP> inside the face <theF>. <theP2D> - 2D representation of <theP> on the surface of <theF> Returns 0 in case of success. More... | |
static Standard_Integer | PointInFace (const TopoDS_Face &theF, const TopoDS_Edge &theE, const Standard_Real theT, const Standard_Real theDt2D, gp_Pnt &theP, gp_Pnt2d &theP2D, const Handle< IntTools_Context > &theContext) |
Computes a point <theP> inside the face <theF> using starting point taken by the parameter <theT> from the 2d curve of the edge <theE> on the face <theF> in the direction perpendicular to the tangent vector of the 2d curve of the edge. The point will be distanced on <theDt2D> from the 2d curve. <theP2D> - 2D representation of <theP> on the surface of <theF> Returns 0 in case of success. More... | |
static Standard_Integer | PointInFace (const TopoDS_Face &theF, const Handle< Geom2d_Curve > &theL, gp_Pnt &theP, gp_Pnt2d &theP2D, const Handle< IntTools_Context > &theContext, const Standard_Real theDt2D=0.0) |
Computes a point <theP> inside the face <theF> using the line <theL> so that 2D point <theP2D>, 2D representation of <theP> on the surface of <theF>, lies on that line. Returns 0 in case of success. More... | |
The class contains handy static functions dealing with the topology This is the copy of BOPTools_AlgoTools3D.cdl file.
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Makes the edge <theESplit> seam edge for the face <theFace> basing on the surface properties (U and V periods)
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Makes the split edge <theESplit> seam edge for the face <theFace> basing on the positions of 2d curves of the original edge <theEOrigin>.
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Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>.
Output:
aPx - the 3D-point where the normal computed
aD - the normal;
Warning:
The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal);
The point is computed using PointNearEdge function, with the shifting value BOPTools_AlgoTools3D::MinStepIn2d(), from the edge, but if this value is too big, the point will be computed using Hatcher (PointInFace function).
Returns TRUE in case of success.
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Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>.
Output:
aPx - the 3D-point where the normal computed
aD - the normal;
Warning:
The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal);
The point is computed using PointNearEdge function with the shifting value <aDt2D> from the edge;
No checks on this value will be done.
Returns TRUE in case of success.
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Computes normal to the face <aF> for the 3D-point that belongs to the edge <aE> at parameter <aT>.
Output:
aPx - the 3D-point where the normal computed
aD - the normal;
Warning:
The normal is computed not exactly in the point on the edge, but in point that is near to the edge towards to the face material (so, we'll have approx. normal);
The point is computed using PointNearEdge function with the shifting value <aDt2D> from the edge, but if this value is too big the point will be computed using Hatcher (PointInFace function).
Returns TRUE in case of success.
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Computes normal to the face <aF> for the point on the edge <aE> at parameter <aT>.
<theContext> - storage for caching the geometrical tools.
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Computes normal to the face <aF> for the point on the edge <aE> at arbitrary intermediate parameter.
<theContext> - storage for caching the geometrical tools.
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Compute normal <aD> to surface <aS> in point (U,V) Returns TRUE if directions aD1U, aD1V coincide.
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Returns TRUE if the shape <aS> does not contain geometry information (e.g. empty compound)
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Returns simple step value that is used in 2D-computations = 1.e-5.
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Get the edge <aER> from the face <aF> that is the same as the edge <aE>
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Computes arbitrary point <theP> inside the face <theF>.
<theP2D> - 2D representation of <theP> on the surface of <theF>
Returns 0 in case of success.
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Computes a point <theP> inside the face <theF> using starting point taken by the parameter <theT> from the 2d curve of the edge <theE> on the face <theF> in the direction perpendicular to the tangent vector of the 2d curve of the edge.
The point will be distanced on <theDt2D> from the 2d curve. <theP2D> - 2D representation of <theP> on the surface of <theF>
Returns 0 in case of success.
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Computes a point <theP> inside the face <theF> using the line <theL> so that 2D point <theP2D>, 2D representation of <theP> on the surface of <theF>, lies on that line.
Returns 0 in case of success.
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Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is <aDt2D>
If the value of shifting is too big the point will be computed using Hatcher (PointInFace function).
Returns error status:
0 - in case of success;
1 - <aE> does not have 2d curve on the face <aF>;
2 - the computed point is out of the face.
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Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is <aDt2D>. No checks on this value will be done.
Returns error status:
0 - in case of success;
1 - <aE> does not have 2d curve on the face <aF>.
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Computes the point <aPx>, (<aP2D>) that is near to the edge <aE> at parameter <aT> towards to the material of the face <aF>. The value of shifting in 2D is dt2D=BOPTools_AlgoTools3D::MinStepIn2d()
If the value of shifting is too big the point will be computed using Hatcher (PointInFace function).
Returns error status:
0 - in case of success;
1 - <aE> does not have 2d curve on the face <aF>;
2 - the computed point is out of the face.
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Compute the point <aPx>, (<aP2D>) that is near to the edge <aE> at arbitrary parameter towards to the material of the face <aF>. The value of shifting in 2D is dt2D=BOPTools_AlgoTools3D::MinStepIn2d().
If the value of shifting is too big the point will be computed using Hatcher (PointInFace function).
Returns error status:
0 - in case of success;
1 - <aE> does not have 2d curve on the face <aF>;
2 - the computed point is out of the face.
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Returns 1 if scalar product aNF1* aNF2>0.
Returns 0 if directions aNF1 aNF2 coincide
Returns -1 if scalar product aNF1* aNF2<0.