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