Circle2D.h
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00001 /***************************************************************************** 00002 * Copyright (C) 2011 by Benjamin Hadorn (b_hadorn@bluewin.ch) 00003 ***************************************************************************** 00004 * Project : Zeus Math Library 00005 * Module : Circle2D 00006 * Package : Zeus.ZeusMath.Geometry 00007 * Author : Martin Abbuehl 00008 * Date : 27.12.2011 00009 * System : Zeus-Framework 00010 ***************************************************************************** 00011 * Licence: * 00012 * This library is free software; you can redistribute it and/or modify * 00013 * it under the terms of the GNU Lesser General Public License as * 00014 * published by the Free Software Foundation; either version * 00015 * 2.1 of the License, or (at your option) any later version. * 00016 * * 00017 * This library is distributed in the hope that it will be useful, * 00018 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00020 * GNU Lesser General Public License for more details. * 00021 * * 00022 * You should have received a copy of the GNU Lesser General Public * 00023 * License along with this library; if not, write to the Free Software * 00024 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA * 00025 *****************************************************************************/ 00026 00027 /***************************************************************************** 00028 * Changes: 00029 * 27.12.2011 bha: created zeus 2.0 00030 *****************************************************************************/ 00031 00032 #ifndef Circle2DH 00033 #define Circle2DH 00034 00035 #include <zeusmath/Geometry/Interfaces/ICircle2D.hpp> 00036 #include <zeusmath/Geometry/Vector2D.h> 00037 00038 00039 BEGIN_NAMESPACE_Zeus 00040 00041 00042 // Forward declarations. 00043 class IArc2D; 00044 class ILineSegment2D; 00045 class IStraightLine2D; 00046 class TStraightLine2D; 00047 00048 /******************************************************************************/ 00051 /******************************************************************************/ 00052 zeusmath_class TCircle2D : public ICircle2D 00053 { 00054 public: 00056 inline TCircle2D() { setRadius(1); } 00057 00059 TCircle2D(const IVector2D& rVecCenter, const Float& rfRadius); 00060 00062 inline TCircle2D(const TCircle2D& rCircle) { *this = rCircle; } 00063 00065 inline TCircle2D(const ICircle2D& rCircle) { *this = rCircle; } 00066 00068 static bool createFrom3Points(const IVector2D& rVecPoint1, 00069 const IVector2D& rVecPoint2, 00070 const IVector2D& rVecPoint3, ICircle2D& rCircle); 00071 00073 virtual inline ~TCircle2D() { } 00074 00075 /******************************************************************************/ 00077 /******************************************************************************/ 00078 virtual inline const IVector2D& MQUALIFIER getCenter() const { return m_vecCenter; } 00079 virtual inline void MQUALIFIER setCenter(const IVector2D& rVecCenter) { m_vecCenter = rVecCenter; } 00080 virtual inline const Float& MQUALIFIER getRadius() const { return m_fRadius; } 00081 virtual inline void MQUALIFIER setRadius(const Float& rfRadius) { m_fRadius = ::fabs(rfRadius); } 00082 virtual inline void MQUALIFIER assign(const ICircle2D& rCircle) { *this = rCircle; } 00083 virtual inline bool MQUALIFIER isEqual(const ICircle2D& rCircle) const { return *this == rCircle; } 00084 virtual void MQUALIFIER calcPointFromAngle(const IAngle& rAngle, IVector2D& rVecPoint) const; 00085 virtual bool MQUALIFIER calcAngleFromPoint(const IVector2D& rVecPoint, IAngle& rAngle) const; 00086 00087 virtual bool MQUALIFIER isPointInside(const IVector2D& rVecPoint) const; 00088 00089 /******************************************************************************/ 00091 /******************************************************************************/ 00093 static Retval calcCirclesTangentTo2StraightLines(const IStraightLine2D& rStraightLine1, 00094 const IStraightLine2D& rStraightLine2, 00095 const Float& rfRadius, 00096 IList<ICircle2D>& rLstTangentCircles, 00097 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00098 00100 static Retval calcCirclesTangentToStraightLineAndCircle(const IStraightLine2D& rStraightLine, 00101 const ICircle2D& rCircle, 00102 const Float& rfRadius, 00103 IList<ICircle2D>& rLstTangentCircles, 00104 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00105 00107 static Retval calcCirclesTangentTo2Circles(const ICircle2D& rCircle1, 00108 const ICircle2D& rCircle2, 00109 const Float& rfRadius, 00110 IList<ICircle2D>& rLstTangentCircles, 00111 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00112 00114 static Retval calcCirclesTangentTo2LineSegments(const ILineSegment2D& rLineSegment1, 00115 const ILineSegment2D& rLineSegment2, 00116 const Float& rfRadius, 00117 IList<ICircle2D>& rLstTangentCircles, 00118 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00119 00121 static Retval calcCirclesTangentToLineSegmentAndArc(const ILineSegment2D& rLineSegment, 00122 const IArc2D& rArc, 00123 const Float& rfRadius, 00124 IList<ICircle2D>& rLstTangentCircles, 00125 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00126 00128 static Retval calcCirclesTangentTo2Arcs(const IArc2D& rArc1, const IArc2D& rArc2, 00129 const Float& rfRadius, 00130 IList<ICircle2D>& rLstTangentCircles, 00131 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00132 00133 /******************************************************************************/ 00135 /******************************************************************************/ 00136 virtual inline const InterfaceID& MQUALIFIER getInterfaceID() const { return m_InterfaceID; } 00137 00138 virtual Retval MQUALIFIER intersect(const IGeometricObject2D& rObject, 00139 IList<IVector2D>& rLstIntersectionPoints, 00140 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE) const; 00141 00142 virtual bool MQUALIFIER containsPoint(const IVector2D& rVecPoint) const; 00143 00144 virtual void MQUALIFIER calcClosestPointToPoint(const IVector2D& rVecPoint, 00145 IVector2D& rVecClosestPoint) const; 00146 00147 virtual Float MQUALIFIER calcDistanceToPoint(const IVector2D& rVecPoint) const; 00148 virtual Float MQUALIFIER calcDistanceToObject(const IGeometricObject2D& rObject) const; 00149 00150 virtual Retval MQUALIFIER getXMinPoint(IVector2D& rVecPoint) const; 00151 virtual Retval MQUALIFIER getXMaxPoint(IVector2D& rVecPoint) const; 00152 virtual Retval MQUALIFIER getYMinPoint(IVector2D& rVecPoint) const; 00153 virtual Retval MQUALIFIER getYMaxPoint(IVector2D& rVecPoint) const; 00154 00155 virtual void MQUALIFIER getMinMaxCoordinates(Float& rfXMin, Float& rfXMax, 00156 Float& rfYMin, Float& rfYMax) const; 00157 00158 /******************************************************************************/ 00160 /******************************************************************************/ 00162 const TCircle2D& operator=(const ICircle2D& rCircle); 00163 00165 const TCircle2D& operator=(const TCircle2D& rCircle); 00166 00167 /******************************************************************************/ 00169 /******************************************************************************/ 00171 bool operator==(const ICircle2D& rCircle) const; 00172 00174 inline bool operator!=(const ICircle2D& rCircle) const { return !(*this == rCircle); } 00175 00176 private: 00178 static void calcTangentCircleCenterRestrictions(const IStraightLine2D& rStraightLine, 00179 const Float& rfRadius, 00180 IStraightLine2D& rRestrictionLine1, 00181 IStraightLine2D& rRestrictionLine2); 00182 00184 static void calcTangentCircleCenterRestrictions(const ICircle2D& rCircle, 00185 const Float& rfRadius, 00186 ICircle2D& rRestrictionCircle1, 00187 ICircle2D& rRestrictionCircle2); 00188 00190 static Int calcCirclesTangentTo2GeometricObjects( 00191 const IList<const IGeometricObject2D*>& rLstCenterRestrictions1, 00192 const IList<const IGeometricObject2D*>& rLstCenterRestrictions2, 00193 const Float& rfRadius, IList<ICircle2D>& rLstTangentCircles, 00194 const Float& rfTangentTolerance = INTERSECT_TANGENT_TOLERANCE); 00195 00197 static bool checkTangentCase(const TVector2D& rVec1, const TVector2D& rVec2, 00198 const Float& rfTangentTolerance, 00199 IList<IVector2D>& rLstIntersectionPoints); 00200 00201 private: 00203 TVector2D m_vecCenter; 00204 00206 Float m_fRadius; 00207 00208 // Static members. 00209 static const InterfaceID m_InterfaceID; 00210 }; 00211 00212 00213 END_NAMESPACE_Zeus 00214 00215 #endif 00216