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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
341 lines
10 KiB
C++
341 lines
10 KiB
C++
// Created on: 1993-03-10
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// Created by: JCV
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// Copyright (c) 1993-1999 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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#include <Geom_Ellipse.ixx>
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#include <gp_XYZ.hxx>
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#include <ElCLib.hxx>
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#include <Standard_ConstructionError.hxx>
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#include <Standard_RangeError.hxx>
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typedef Geom_Ellipse Ellipse;
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typedef Handle(Geom_Ellipse) Handle(Ellipse);
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typedef gp_Ax1 Ax1;
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typedef gp_Ax2 Ax2;
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typedef gp_Pnt Pnt;
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typedef gp_Vec Vec;
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typedef gp_Trsf Trsf;
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typedef gp_XYZ XYZ;
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//=======================================================================
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//function : Copy
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//purpose :
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//=======================================================================
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Handle(Geom_Geometry) Geom_Ellipse::Copy() const
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{
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Handle(Ellipse) E;
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E = new Ellipse (pos, majorRadius, minorRadius);
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return E;
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}
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//=======================================================================
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//function : Geom_Ellipse
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//purpose :
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//=======================================================================
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Geom_Ellipse::Geom_Ellipse (const gp_Elips& E)
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: majorRadius (E.MajorRadius()), minorRadius (E.MinorRadius())
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{
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pos = E.Position ();
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}
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//=======================================================================
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//function : Geom_Ellipse
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//purpose :
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//=======================================================================
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Geom_Ellipse::Geom_Ellipse ( const Ax2& A,
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const Standard_Real MajorRadius,
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const Standard_Real MinorRadius)
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: majorRadius (MajorRadius), minorRadius (MinorRadius) {
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if (MajorRadius < MinorRadius || MinorRadius < 0.0 ) {
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Standard_ConstructionError::Raise();
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}
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pos = A;
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}
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//=======================================================================
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//function : IsClosed
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//purpose :
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//=======================================================================
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Standard_Boolean Geom_Ellipse::IsClosed () const { return Standard_True; }
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//=======================================================================
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//function : IsPeriodic
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//purpose :
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//=======================================================================
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Standard_Boolean Geom_Ellipse::IsPeriodic () const { return Standard_True; }
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//=======================================================================
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//function : FirstParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::FirstParameter () const { return 0.0; }
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//=======================================================================
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//function : LastParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::LastParameter () const { return 2.0 * M_PI; }
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//=======================================================================
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//function : MajorRadius
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::MajorRadius () const { return majorRadius; }
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//=======================================================================
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//function : MinorRadius
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::MinorRadius () const { return minorRadius; }
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//=======================================================================
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//function : SetElips
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//purpose :
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//=======================================================================
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void Geom_Ellipse::SetElips (const gp_Elips& E) {
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majorRadius = E.MajorRadius();
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minorRadius = E.MinorRadius();
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pos = E.Position();
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}
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//=======================================================================
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//function : SetMajorRadius
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//purpose :
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//=======================================================================
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void Geom_Ellipse::SetMajorRadius (const Standard_Real MajorRadius) {
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if (MajorRadius < minorRadius) Standard_ConstructionError::Raise ();
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else majorRadius = MajorRadius;
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}
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//=======================================================================
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//function : SetMinorRadius
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//purpose :
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//=======================================================================
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void Geom_Ellipse::SetMinorRadius (const Standard_Real MinorRadius) {
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if (MinorRadius < 0 || majorRadius < MinorRadius) {
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Standard_ConstructionError::Raise();
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}
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else { minorRadius = MinorRadius; }
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}
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//=======================================================================
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//function : Elips
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//purpose :
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//=======================================================================
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gp_Elips Geom_Ellipse::Elips () const {
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return gp_Elips (pos, majorRadius, minorRadius);
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}
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//=======================================================================
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//function : ReversedParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::ReversedParameter( const Standard_Real U) const
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{
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return ( 2. * M_PI - U);
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}
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//=======================================================================
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//function : Directrix1
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//purpose :
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//=======================================================================
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Ax1 Geom_Ellipse::Directrix1 () const {
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gp_Elips Ev (pos, majorRadius, minorRadius);
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return Ev.Directrix1();
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}
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//=======================================================================
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//function : Directrix2
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//purpose :
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//=======================================================================
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Ax1 Geom_Ellipse::Directrix2 () const {
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gp_Elips Ev (pos, majorRadius, minorRadius);
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return Ev.Directrix2();
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}
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//=======================================================================
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//function : D0
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//purpose :
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//=======================================================================
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void Geom_Ellipse::D0 (const Standard_Real U, gp_Pnt& P) const {
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P = ElCLib::EllipseValue (U, pos, majorRadius, minorRadius);
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}
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//=======================================================================
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//function : D1
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//purpose :
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//=======================================================================
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void Geom_Ellipse::D1 (const Standard_Real U, Pnt& P, Vec& V1) const {
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ElCLib::EllipseD1 (U, pos, majorRadius, minorRadius, P, V1);
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}
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//=======================================================================
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//function : D2
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//purpose :
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//=======================================================================
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void Geom_Ellipse::D2 (const Standard_Real U, Pnt& P, Vec& V1, Vec& V2) const {
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ElCLib::EllipseD2 (U, pos, majorRadius, minorRadius, P, V1, V2);
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}
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//=======================================================================
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//function : D3
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//purpose :
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//=======================================================================
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void Geom_Ellipse::D3 (const Standard_Real U, Pnt& P, Vec& V1, Vec& V2, Vec& V3) const {
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ElCLib::EllipseD3 (U, pos, majorRadius, minorRadius, P, V1, V2, V3);
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}
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//=======================================================================
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//function : DN
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//purpose :
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//=======================================================================
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Vec Geom_Ellipse::DN (const Standard_Real U, const Standard_Integer N) const {
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Standard_RangeError_Raise_if (N < 1, " ");
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return ElCLib::EllipseDN (U, pos, majorRadius, minorRadius, N);
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}
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//=======================================================================
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//function : Eccentricity
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::Eccentricity () const {
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if (majorRadius == 0.0) { return 0.0; }
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else {
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return (Sqrt(majorRadius*majorRadius-minorRadius*minorRadius))/majorRadius;
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}
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}
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//=======================================================================
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//function : Focal
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::Focal () const {
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return 2.0 * Sqrt(majorRadius * majorRadius - minorRadius * minorRadius);
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}
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//=======================================================================
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//function : Focus1
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//purpose :
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//=======================================================================
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Pnt Geom_Ellipse::Focus1 () const {
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Standard_Real C = Sqrt (majorRadius * majorRadius - minorRadius * minorRadius);
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Standard_Real Xp, Yp, Zp, Xd, Yd, Zd;
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pos.Location().Coord (Xp, Yp, Zp);
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pos.XDirection().Coord (Xd, Yd, Zd);
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return Pnt (Xp + C * Xd, Yp + C * Yd, Zp + C * Zd);
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}
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//=======================================================================
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//function : Focus2
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//purpose :
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//=======================================================================
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Pnt Geom_Ellipse::Focus2 () const {
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Standard_Real C = Sqrt (majorRadius * majorRadius - minorRadius * minorRadius);
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Standard_Real Xp, Yp, Zp, Xd, Yd, Zd;
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pos.Location().Coord (Xp, Yp, Zp);
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pos.XDirection().Coord (Xd, Yd, Zd);
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return Pnt (Xp - C * Xd, Yp - C * Yd, Zp - C * Zd);
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}
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//=======================================================================
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//function : Parameter
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//purpose :
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//=======================================================================
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Standard_Real Geom_Ellipse::Parameter () const {
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if (majorRadius == 0.0) return 0.0;
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else return (minorRadius * minorRadius) / majorRadius;
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}
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//=======================================================================
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//function : Transform
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//purpose :
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//=======================================================================
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void Geom_Ellipse::Transform (const Trsf& T) {
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majorRadius = majorRadius * Abs(T.ScaleFactor());
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minorRadius = minorRadius * Abs(T.ScaleFactor());
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pos.Transform(T);
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}
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