/************************************************************************ ** ** @file vspline.h ** @author Roman Telezhinsky ** @date November 15, 2013 ** ** @brief ** @copyright ** This source code is part of the Valentine project, a pattern making ** program, whose allow create and modeling patterns of clothing. ** Copyright (C) 2013 Valentina project ** All Rights Reserved. ** ** Valentina is free software: you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation, either version 3 of the License, or ** (at your option) any later version. ** ** Valentina is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with Valentina. If not, see . ** *************************************************************************/ #ifndef VSPLINE_H #define VSPLINE_H #include "vpointf.h" #include "vgobject.h" #include #include #include class QString; #define M_2PI 6.28318530717958647692528676655900576 /** * @brief VSpline class that implements the spline. */ class VSpline :public VGObject { public: /** * @brief VSpline default constructor */ VSpline(); /** * @brief VSpline constructor. * @param spline spline from which the copy. */ VSpline (const VSpline &spline ); /** * @brief VSpline constructor. * @param p1 first point spline. * @param p4 last point spline. * @param angle1 angle from first point to first control point. * @param angle2 angle from second point to second control point. * @param kCurve coefficient of curvature spline. * @param kAsm1 coefficient of length first control line. * @param kAsm2 coefficient of length second control line. */ VSpline (VPointF p1, VPointF p4, qreal angle1, qreal angle2, qreal kAsm1, qreal kAsm2, qreal kCurve, quint32 idObject = 0, Draw::Draws mode = Draw::Calculation); /** * @brief VSpline constructor. * @param p1 first point spline. * @param p2 first control point. * @param p3 second control point. * @param p4 second point spline. */ VSpline (VPointF p1, QPointF p2, QPointF p3, VPointF p4, qreal kCurve, quint32 idObject = 0, Draw::Draws mode = Draw::Calculation); /** * @brief GetP1 return first spline point. * @return first point. */ VPointF GetP1 () const {return p1;} /** * @brief GetP2 return first control point. * @return first control point. */ QPointF GetP2 () const; /** * @brief GetP3 return second control point. * @return second control point. */ QPointF GetP3 () const; /** * @brief GetP4 return last spline point. * @return остання точка сплайну. */ VPointF GetP4 () const; /** * @brief GetAngle1 return first angle control line. * @return angle. */ qreal GetAngle1 () const; /** * @brief GetAngle2 return second angle control line. * @return angle. */ qreal GetAngle2() const; /** * @brief GetLength return length of spline. * @return length. */ qreal GetLength () const; /** * @brief name return spline name. Used for variables. * @return name. */ QString name () const; /** * @brief GetKasm1 return coefficient of length first control line. * @return coefficient. */ qreal GetKasm1() const; /** * @brief GetKasm2 return coefficient of length second control line. * @return coefficient. */ qreal GetKasm2() const; /** * @brief GetKcurve return coefficient of curvature spline. * @return coefficient */ qreal GetKcurve() const; /** * @brief CrossingSplLine check intersection spline with line. * @param line line. * @param intersectionPoint intersection point. * @return result intersection. */ QLineF::IntersectType CrossingSplLine(const QLineF &line, QPointF *intersectionPoint ) const; qreal LengthT(qreal t) const; /** * @brief CutSpline cut spline. GetPointP1() of base spline will return first point for first spline, GetPointP4() * of base spline will return forth point of second spline. * @param length length first spline * @param spl1p2 second point of first spline * @param spl1p3 third point of first spline * @param spl2p2 second point of second spline * @param spl2p3 third point of second spline * @return point of cutting. This point is forth point of first spline and first point of second spline. */ QPointF CutSpline ( qreal length, QPointF &spl1p2, QPointF &spl1p3, QPointF &spl2p2, QPointF &spl2p3) const; /** * @brief GetPoints return list with spline points. * @return list of points. */ QVector GetPoints () const; /** * @brief GetPath return QPainterPath for this spline. * @return path. */ QPainterPath GetPath() const; /** * @brief SplinePoints return list with spline points. * @param p1 first spline point. * @param p4 last spline point. * @param angle1 angle from first point to first control point. * @param angle2 angle from second point to second control point. * @param kAsm1 coefficient of length first control line. * @param kAsm2 coefficient of length second control line. * @param kCurve coefficient of curvature spline. * @return */ static QVector SplinePoints(const QPointF &p1, const QPointF &p4, qreal angle1, qreal angle2, qreal kAsm1, qreal kAsm2, qreal kCurve); /** * @brief operator = assignmeant operator * @param spl spline * @return spline */ VSpline &operator=(const VSpline &spl); protected: /** * @brief GetPoints return list with spline points. * @param p1 first spline point. * @param p2 first control point. * @param p3 second control point. * @param p4 last spline point. * @return list of points. */ static QVector GetPoints (const QPointF &p1, const QPointF &p2, const QPointF &p3, const QPointF &p4 ); private: /** * @brief p1 first spline point. */ VPointF p1; /** * @brief p2 first control point. */ QPointF p2; /** * @brief p3 second control point. */ QPointF p3; /** * @brief p4 last spline point. */ VPointF p4; /** * @brief angle1 first angle control line. */ qreal angle1; /** * @brief angle2 second angle control line. */ qreal angle2; /** * @brief kAsm1 coefficient of length first control line. */ qreal kAsm1; /** * @brief kAsm2 coefficient of length second control line. */ qreal kAsm2; /** * @brief kCurve coefficient of curvature spline. */ qreal kCurve; /** * @brief LengthBezier return spline length using 4 spline point. * @param p1 first spline point * @param p2 first control point. * @param p3 second control point. * @param p4 last spline point. * @return length. */ qreal LengthBezier (const QPointF &p1, const QPointF &p2, const QPointF &p3, const QPointF &p4 ) const; /** * @brief PointBezier_r find spline point using four point of spline. * @param x1 х coordinate first point. * @param y1 у coordinate first point. * @param x2 х coordinate first control point. * @param y2 у coordinate first control point. * @param x3 х coordinate second control point. * @param y3 у coordinate second control point. * @param x4 х coordinate last point. * @param y4 у coordinate last point. * @param level level of recursion. In the begin 0. * @param px list х coordinat spline points. * @param py list у coordinat spline points. */ static void PointBezier_r ( qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4, qint16 level, QVector &px, QVector &py); /** * @brief CalcSqDistance calculate squared distance. * @param x1 х coordinate first point. * @param y1 у coordinate first point. * @param x2 х coordinate second point. * @param y2 у coordinate second point. * @return squared length. */ static qreal CalcSqDistance ( qreal x1, qreal y1, qreal x2, qreal y2); /** * @brief CreateName create spline name. */ void CreateName(); }; inline QPointF VSpline::GetP2() const { return p2; } inline QPointF VSpline::GetP3() const { return p3; } inline VPointF VSpline::GetP4() const { return p4; } inline qreal VSpline::GetAngle1() const { return angle1; } inline qreal VSpline::GetAngle2() const { return angle2; } inline qreal VSpline::GetKasm1() const { return kAsm1; } inline qreal VSpline::GetKasm2() const { return kAsm2; } inline qreal VSpline::GetKcurve() const { return kCurve; } #endif // VSPLINE_H