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The algorithm has been improved for the cases when the intersection line goes through the cone apex. <!break> 1. All special points are put to the ALine forcefully (if they are true intersection point). Currently this step has not been implemented yet. 2. Now the tolerance of IntPatch_Point (put into ALine) is computed in order to cover the distance between it and the correspond ALine. 3. Test cases have been created. 4. Procedure of trimming IntAna_Curve has been improved. 5. Criterion when the discriminant of IntAna_Curve can be considered to be equal to 0 has been improved. 6. Methods IntAna_Curve::FindParameter(...) (and IntPatch_ALine::FindParameter(...)) currently returns list of all parameters corresponding the given point (IntAna_Curve can be self-interfered curve). Before the fix, this method always returned only one (randomly chosen) parameter. 7. Interfaces of the following methods have been changed: IntAna_Curve::FindParameter(...), IntPatch_ALine::FindParameter(...), IntPatch_ALine::ChangeVertex(...), IntPatch_SpecialPoints::AddPointOnUorVIso(...), IntPatch_SpecialPoints::AddSingularPole(...), IntPatch_WLineTool::ExtendTwoWLines(). 8. Following methods have been added: IntAna_Quadric::SpecialPoints(...), IntPatch_ALineToWLine::GetSectionRadius(...), IntPatch_SpecialPoints::ProcessSphere(...), IntPatch_SpecialPoints::ProcessCone(...), IntPatch_SpecialPoints::GetTangentToIntLineForCone(...). ------------------ 1) tests/boolean/volumemaker/C5 tests/boolean/volumemaker/C6 tests/boolean/volumemaker/E7 They are real IMPROVEMENTS. In the FIX (in compare with MASTER), section result between pairs of faces f2&f6 (C5), f3&f7 (C6) and f1&f5 (E7) is closed. Separated test cases have been created in order to focus on the problem with section. Bug #28503 has been fixed. Correction in test cases.
245 lines
7.7 KiB
C++
245 lines
7.7 KiB
C++
// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _gp_Cone_HeaderFile
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#define _gp_Cone_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <gp_Ax3.hxx>
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#include <Standard_Real.hxx>
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#include <gp_Pnt.hxx>
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#include <Standard_Boolean.hxx>
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#include <gp_Ax1.hxx>
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class Standard_ConstructionError;
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class gp_Ax3;
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class gp_Ax1;
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class gp_Pnt;
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class gp_Ax2;
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class gp_Trsf;
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class gp_Vec;
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//! Defines an infinite conical surface.
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//! A cone is defined by its half-angle (can be negative) at the apex and
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//! positioned in space with a coordinate system (a gp_Ax3
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//! object) and a "reference radius" where:
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//! - the "main Axis" of the coordinate system is the axis of revolution of the cone,
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//! - the plane defined by the origin, the "X Direction" and
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//! the "Y Direction" of the coordinate system is the
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//! reference plane of the cone; the intersection of the
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//! cone with this reference plane is a circle of radius
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//! equal to the reference radius,
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//! if the half-angle is positive, the apex of the cone is on
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//! the negative side of the "main Axis" of the coordinate
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//! system. If the half-angle is negative, the apex is on the positive side.
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//! This coordinate system is the "local coordinate system" of the cone.
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//! Note: when a gp_Cone cone is converted into a
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//! Geom_ConicalSurface cone, some implicit properties of
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//! its local coordinate system are used explicitly:
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//! - its origin, "X Direction", "Y Direction" and "main
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//! Direction" are used directly to define the parametric
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//! directions on the cone and the origin of the parameters,
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//! - its implicit orientation (right-handed or left-handed)
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//! gives the orientation (direct or indirect) of the
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//! Geom_ConicalSurface cone.
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//! See Also
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//! gce_MakeCone which provides functions for more
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//! complex cone constructions
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//! Geom_ConicalSurface which provides additional
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//! functions for constructing cones and works, in particular,
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//! with the parametric equations of cones gp_Ax3
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class gp_Cone
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Creates an indefinite Cone.
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gp_Cone();
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//! Creates an infinite conical surface. A3 locates the cone
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//! in the space and defines the reference plane of the surface.
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//! Ang is the conical surface semi-angle. Its absolute value is in range
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//! ]0, PI/2[.
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//! Radius is the radius of the circle in the reference plane of
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//! the cone.
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//! Raises ConstructionError
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//! * if Radius is lower than 0.0
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//! * Abs(Ang) < Resolution from gp or Abs(Ang) >= (PI/2) - Resolution.
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gp_Cone(const gp_Ax3& A3, const Standard_Real Ang, const Standard_Real Radius);
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//! Changes the symmetry axis of the cone. Raises ConstructionError
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//! the direction of A1 is parallel to the "XDirection"
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//! of the coordinate system of the cone.
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void SetAxis (const gp_Ax1& A1);
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//! Changes the location of the cone.
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void SetLocation (const gp_Pnt& Loc);
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//! Changes the local coordinate system of the cone.
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//! This coordinate system defines the reference plane of the cone.
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void SetPosition (const gp_Ax3& A3);
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//! Changes the radius of the cone in the reference plane of
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//! the cone.
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//! Raised if R < 0.0
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void SetRadius (const Standard_Real R);
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//! Changes the semi-angle of the cone.
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//! Semi-angle can be negative. Its absolute value
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//! Abs(Ang) is in range ]0,PI/2[.
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//! Raises ConstructionError if Abs(Ang) < Resolution from gp or Abs(Ang) >= PI/2 - Resolution
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void SetSemiAngle (const Standard_Real Ang);
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//! Computes the cone's top. The Apex of the cone is on the
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//! negative side of the symmetry axis of the cone.
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gp_Pnt Apex() const;
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//! Reverses the U parametrization of the cone
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//! reversing the YAxis.
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void UReverse();
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//! Reverses the V parametrization of the cone reversing the ZAxis.
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void VReverse();
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//! Returns true if the local coordinate system of this cone is right-handed.
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Standard_Boolean Direct() const;
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//! returns the symmetry axis of the cone.
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const gp_Ax1& Axis() const;
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//! Computes the coefficients of the implicit equation of the quadric
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//! in the absolute cartesian coordinates system :
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//! A1.X**2 + A2.Y**2 + A3.Z**2 + 2.(B1.X.Y + B2.X.Z + B3.Y.Z) +
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//! 2.(C1.X + C2.Y + C3.Z) + D = 0.0
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Standard_EXPORT void Coefficients (Standard_Real& A1, Standard_Real& A2, Standard_Real& A3, Standard_Real& B1, Standard_Real& B2, Standard_Real& B3, Standard_Real& C1, Standard_Real& C2, Standard_Real& C3, Standard_Real& D) const;
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//! returns the "Location" point of the cone.
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const gp_Pnt& Location() const;
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//! Returns the local coordinates system of the cone.
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const gp_Ax3& Position() const;
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//! Returns the radius of the cone in the reference plane.
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Standard_Real RefRadius() const;
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//! Returns the half-angle at the apex of this cone.
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//! Attention! Semi-angle can be negative.
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Standard_Real SemiAngle() const;
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//! Returns the XAxis of the reference plane.
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gp_Ax1 XAxis() const;
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//! Returns the YAxis of the reference plane.
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gp_Ax1 YAxis() const;
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Standard_EXPORT void Mirror (const gp_Pnt& P);
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//! Performs the symmetrical transformation of a cone
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//! with respect to the point P which is the center of the
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//! symmetry.
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Standard_EXPORT gp_Cone Mirrored (const gp_Pnt& P) const;
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Standard_EXPORT void Mirror (const gp_Ax1& A1);
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//! Performs the symmetrical transformation of a cone with
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//! respect to an axis placement which is the axis of the
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//! symmetry.
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Standard_EXPORT gp_Cone Mirrored (const gp_Ax1& A1) const;
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Standard_EXPORT void Mirror (const gp_Ax2& A2);
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//! Performs the symmetrical transformation of a cone with respect
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//! to a plane. The axis placement A2 locates the plane of the
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//! of the symmetry : (Location, XDirection, YDirection).
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Standard_EXPORT gp_Cone Mirrored (const gp_Ax2& A2) const;
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void Rotate (const gp_Ax1& A1, const Standard_Real Ang);
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//! Rotates a cone. A1 is the axis of the rotation.
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//! Ang is the angular value of the rotation in radians.
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gp_Cone Rotated (const gp_Ax1& A1, const Standard_Real Ang) const;
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void Scale (const gp_Pnt& P, const Standard_Real S);
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//! Scales a cone. S is the scaling value.
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//! The absolute value of S is used to scale the cone
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gp_Cone Scaled (const gp_Pnt& P, const Standard_Real S) const;
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void Transform (const gp_Trsf& T);
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//! Transforms a cone with the transformation T from class Trsf.
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gp_Cone Transformed (const gp_Trsf& T) const;
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void Translate (const gp_Vec& V);
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//! Translates a cone in the direction of the vector V.
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//! The magnitude of the translation is the vector's magnitude.
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gp_Cone Translated (const gp_Vec& V) const;
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void Translate (const gp_Pnt& P1, const gp_Pnt& P2);
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//! Translates a cone from the point P1 to the point P2.
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gp_Cone Translated (const gp_Pnt& P1, const gp_Pnt& P2) const;
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protected:
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private:
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gp_Ax3 pos;
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Standard_Real radius;
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Standard_Real semiAngle;
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};
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#include <gp_Cone.lxx>
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#endif // _gp_Cone_HeaderFile
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