593 lines
19 KiB
C++
593 lines
19 KiB
C++
/************************************************************************
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**
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** @file vellipticalarc.cpp
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** @author Valentina Zhuravska <zhuravska19(at)gmail.com>
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** @date February 1, 2016
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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) 2013-2015 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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#include "vellipticalarc.h"
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#include "vellipticalarc_p.h"
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#include "vspline.h"
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#include "../ifc/ifcdef.h"
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#include <QtCore/qmath.h>
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#include <QLineF>
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#include <QPainterPath>
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief VEllipticalArc default constructor.
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*/
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VEllipticalArc::VEllipticalArc()
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:VAbstractCurve(GOType::EllipticalArc), d (new VEllipticalArcData)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief VEllipticalArc constructor.
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* @param center center point.
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* @param radius1 arc major radius.
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* @param radius2 arc minor radius.
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* @param f1 start angle (degree).
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* @param f2 end angle (degree).
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*/
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VEllipticalArc::VEllipticalArc (VPointF center, qreal radius1, qreal radius2,
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QString formulaRadius1, QString formulaRadius2, qreal f1, QString formulaF1, qreal f2,
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QString formulaF2, qreal rotationAngle, quint32 idObject, Draw mode)
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: VAbstractCurve(GOType::EllipticalArc, idObject, mode),
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d (new VEllipticalArcData(center, radius1, radius2, formulaRadius1, formulaRadius2,
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f1, formulaF1, f2, formulaF2, rotationAngle))
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{
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc::VEllipticalArc(VPointF center, qreal radius1, qreal radius2, qreal f1, qreal f2, qreal rotationAngle)
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: VAbstractCurve(GOType::EllipticalArc, NULL_ID, Draw::Calculation),
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d (new VEllipticalArcData(center, radius1, radius2, f1, f2, rotationAngle))
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{
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc::VEllipticalArc(qreal length, QString formulaLength, VPointF center, qreal radius1, qreal radius2,
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QString formulaRadius1, QString formulaRadius2, qreal f1, QString formulaF1, qreal rotationAngle,
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quint32 idObject, Draw mode)
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: VAbstractCurve(GOType::EllipticalArc, idObject, mode),
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d (new VEllipticalArcData(formulaLength, center, radius1, radius2, formulaRadius1, formulaRadius2,
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f1, formulaF1, rotationAngle))
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{
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CreateName();
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FindF2(length);
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc::VEllipticalArc(qreal length, VPointF center, qreal radius1, qreal radius2, qreal f1,
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qreal rotationAngle)
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: VAbstractCurve(GOType::EllipticalArc, NULL_ID, Draw::Calculation),
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d (new VEllipticalArcData(center, radius1, radius2, f1, rotationAngle))
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{
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CreateName();
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FindF2(length);
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief VEllipticalArc copy constructor
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* @param arc arc
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*/
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VEllipticalArc::VEllipticalArc(const VEllipticalArc &arc)
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: VAbstractCurve(arc), d (arc.d)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief operator = assignment operator
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* @param arc arc
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* @return arc
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*/
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VEllipticalArc &VEllipticalArc::operator =(const VEllipticalArc &arc)
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{
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if ( &arc == this )
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{
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return *this;
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}
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VAbstractCurve::operator=(arc);
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d = arc.d;
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return *this;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc::~VEllipticalArc()
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{}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetLength return arc length.
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* @return length.
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*/
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qreal VEllipticalArc::GetLength() const
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{
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qreal length = 0;
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QPainterPath elArc;
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QVector<QPointF> points = GetPoints();
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elArc.moveTo(points.at(0));
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for (qint32 i = 1; i < points.count(); ++i)
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{
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elArc.lineTo(points.at(i));
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}
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length = elArc.length();
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if (d->isFlipped)
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{
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length = length * -1;
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}
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return length;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetP1 return point associated with start angle.
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* @return point.
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*/
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QPointF VEllipticalArc::GetP1() const
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{
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return GetPoint(d->f1);
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetP2 return point associated with end angle.
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* @return point.
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*/
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QPointF VEllipticalArc::GetP2 () const
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{
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return GetPoint(d->f2);
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetPoint return point associated with angle.
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* @return point.
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*/
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QPointF VEllipticalArc::GetPoint (qreal angle) const
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{
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if (angle > 360 || angle < 0)
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{// Filter incorect value of angle
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QLineF dummy(0,0, 100, 0);
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dummy.setAngle(angle);
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angle = dummy.angle();
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}
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// p - point without rotation
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qreal x = qAbs((d->radius1 * d->radius2)/
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(qSqrt(d->radius2*d->radius2+d->radius1*d->radius1*qTan(M_PI*angle/180)*qTan(M_PI*angle/180))));
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qreal y = qAbs(qTan(M_PI*angle/180) * x);
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if (angle > 90 && angle <= 180)
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{
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x = -x;
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}
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else if (angle > 180 && angle < 270)
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{
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x = -x;
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y = -y;
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}
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else if (angle > 270)
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{
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y = -y;
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}
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else if (angle == 90)
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{
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x = 0;
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y = d->radius2;
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}
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else if (angle == 270)
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{
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x = 0;
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y = -d->radius2;
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}
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QPointF p ( GetCenter().x () + x, GetCenter().y () + y);
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// rotation of point
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QLineF line(GetCenter().toQPointF(), p);
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line.setAngle(line.angle() + GetRotationAngle());
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return line.p2();
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief AngleArc calculate arc angle.
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* @return angle in degree.
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*/
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qreal VEllipticalArc::AngleArc() const
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{
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if ((qFuzzyIsNull(d->f1) && qFuzzyCompare(d->f2, 360)) ||
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(qFuzzyCompare(d->f1, 360) && qFuzzyIsNull(d->f2)))
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{
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return 360;
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}
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QLineF l1(0, 0, 100, 100);
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l1.setAngle(d->f1);
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QLineF l2(0, 0, 100, 100);
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l2.setAngle(d->f2);
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qreal ang = l1.angleTo(l2);
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if (d->isFlipped)
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{
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ang = 360 - ang;
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}
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return ang;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetAngles return list of angles needed for drawing arc.
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* @return list of angles
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*/
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QVector<qreal> VEllipticalArc::GetAngles() const
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{
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QVector<qreal> sectionAngle;
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qreal angle = AngleArc();
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if (qFuzzyIsNull(angle))
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{// Return the array that includes one angle
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sectionAngle.append(d->f1);
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return sectionAngle;
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}
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if (angle > 360 || angle < 0)
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{// Filter incorect value of angle
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QLineF dummy(0,0, 100, 0);
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dummy.setAngle(angle);
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angle = dummy.angle();
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}
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const qreal angleInterpolation = 45; //degree
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const int sections = qFloor(angle / angleInterpolation);
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for (int i = 0; i < sections; ++i)
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{
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sectionAngle.append(angleInterpolation);
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}
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const qreal tail = angle - sections * angleInterpolation;
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if (tail > 0)
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{
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sectionAngle.append(tail);
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}
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return sectionAngle;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetPoints return list of points needed for drawing arc.
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* @return list of points
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*/
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QVector<QPointF> VEllipticalArc::GetPoints() const
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{
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QVector<QPointF> points;
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QVector<qreal> sectionAngle = GetAngles();
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qreal currentAngle;
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d->isFlipped ? currentAngle = GetEndAngle() : currentAngle = GetStartAngle();
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for (int i = 0; i < sectionAngle.size(); ++i)
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{
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QPointF startPoint = GetPoint(currentAngle);
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QPointF ellipsePoint2 = GetPoint(currentAngle + sectionAngle.at(i)/3);
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QPointF ellipsePoint3 = GetPoint(currentAngle + 2*sectionAngle.at(i)/3);
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QPointF lastPoint = GetPoint(currentAngle + sectionAngle.at(i));
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// four points that are on ellipse
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QPointF bezierPoint1 = ( -5*startPoint + 18*ellipsePoint2 -9*ellipsePoint3 + 2*lastPoint )/6;
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QPointF bezierPoint2 = ( 2*startPoint - 9*ellipsePoint2 + 18*ellipsePoint3 - 5*lastPoint )/6;
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VSpline spl(VPointF(startPoint), bezierPoint1, bezierPoint2, VPointF(lastPoint), 1.0);
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QVector<QPointF> splPoints = spl.GetPoints();
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if (not splPoints.isEmpty() && i != sectionAngle.size() - 1)
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{
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splPoints.removeLast();
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}
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points << splPoints;
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currentAngle += sectionAngle.at(i);
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}
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return points;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief CutArc cut arc into two arcs.
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* @param length length first arc.
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* @param arc1 first arc.
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* @param arc2 second arc.
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* @return point cutting
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*/
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QPointF VEllipticalArc::CutArc(const qreal &length, VEllipticalArc &arc1, VEllipticalArc &arc2) const
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{
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//Always need return two arcs, so we must correct wrong length.
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qreal len = 0;
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if (length < this->GetLength()*0.02)
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{
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len = this->GetLength()*0.02;
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}
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else if ( length > this->GetLength()*0.98)
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{
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len = this->GetLength()*0.98;
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}
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else
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{
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len = length;
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}
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// the first arc has given length and startAngle just like in the origin arc
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arc1 = VEllipticalArc (len, QString().setNum(length), d->center, d->radius1, d->radius2,
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d->formulaRadius1, d->formulaRadius2, d->f1, d->formulaF1, d->rotationAngle,
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getIdObject(), getMode());
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// the second arc has startAngle just like endAngle of the first arc
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// and it has endAngle just like endAngle of the origin arc
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arc2 = VEllipticalArc (d->center, d->radius1, d->radius2, d->formulaRadius1, d->formulaRadius2,
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arc1.GetEndAngle(), arc1.GetFormulaF2(), d->f2, d->formulaF2, d->rotationAngle,
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getIdObject(), getMode());
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return arc1.GetP1();
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPointF VEllipticalArc::CutArc(const qreal &length) const
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{
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VEllipticalArc arc1;
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VEllipticalArc arc2;
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return this->CutArc(length, arc1, arc2);
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief setId keep id arc in data.
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* @param id id arc in data.
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*/
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void VEllipticalArc::setId(const quint32 &id)
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{
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VAbstractCurve::setId(id);
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::CreateName()
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{
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QString name = EARC_ + QString("%1").arg(this->GetCenter().name());
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if (VAbstractCurve::id() != NULL_ID)
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{
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name += QString("_%1").arg(VAbstractCurve::id());
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}
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if (GetDuplicate() > 0)
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{
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name += QString("_%1").arg(GetDuplicate());
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}
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setName(name);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::FindF2(qreal length)
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{
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qreal gap = 180;
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if (length < 0)
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{
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d->isFlipped = true;
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gap = -gap;
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}
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while (length > MaxLength())
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{
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length = length - MaxLength();
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}
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// We need to calculate the second angle
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// first approximation of angle between start and end angles
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qreal endAngle = GetStartAngle() + gap;
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d->f2 = endAngle; // we need to set the end anngle, because we want to use GetLength()
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qreal lenBez = GetLength(); // first approximation of length
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qreal eps = 0.001 * qAbs(length);
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while (qAbs(lenBez - length) > eps)
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{
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gap = gap/2;
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if (lenBez > length)
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{ // we selected too big end angle
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endAngle = endAngle - qAbs(gap);
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}
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else
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{ // we selected too little end angle
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endAngle = endAngle + qAbs(gap);
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}
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// we need to set d->f2, because we use it when we calculate GetLength
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d->f2 = endAngle;
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lenBez = GetLength();
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}
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d->formulaF2 = QString().number(qApp->fromPixel(d->f2));
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d->formulaLength = QString().number(qApp->fromPixel(lenBez));
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VEllipticalArc::MaxLength() const
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{
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const qreal h = ((d->radius1-d->radius2)*(d->radius1-d->radius2))/((d->radius1+d->radius2)*(d->radius1+d->radius2));
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const qreal ellipseLength = M_PI*(d->radius1+d->radius2)*(1+3*h/(10+qSqrt(4-3*h)));
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return ellipseLength;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetF1 return start angle.
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* @return angle in degree.
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*/
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QString VEllipticalArc::GetFormulaF1() const
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{
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return d->formulaF1;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetFormulaF1(const QString &formula, qreal value)
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{
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d->formulaF1 = formula;
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d->f1 = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetF1 return formula for start angle.
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* @return string with formula.
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*/
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qreal VEllipticalArc::GetStartAngle() const
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{
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return d->f1;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetF2 return end angle.
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* @return angle in degree.
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*/
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QString VEllipticalArc::GetFormulaF2() const
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{
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return d->formulaF2;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetFormulaF2(const QString &formula, qreal value)
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{
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d->formulaF2 = formula;
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d->f2 = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetF2 return formula for end angle.
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* @return string with formula.
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*/
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qreal VEllipticalArc::GetEndAngle() const
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{
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return d->f2;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return arc major radius.
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* @return radius.
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*/
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QString VEllipticalArc::GetFormulaRadius1() const
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{
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return d->formulaRadius1;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return arc minor radius.
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* @return radius.
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*/
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QString VEllipticalArc::GetFormulaRadius2() const
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{
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return d->formulaRadius2;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRotationAngle return rotation angle.
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* @return rotationAngle.
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*/
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qreal VEllipticalArc::GetRotationAngle() const
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{
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return d->rotationAngle;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetFormulaRadius1(const QString &formula, qreal value)
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{
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d->formulaRadius1 = formula;
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d->radius1 = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetFormulaRadius2(const QString &formula, qreal value)
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{
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d->formulaRadius2 = formula;
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d->radius2 = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return formula for major radius.
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* @return string with formula.
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*/
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qreal VEllipticalArc::GetRadius1() const
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{
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return d->radius1;
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}
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|
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return formula for minor radius.
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* @return string with formula.
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*/
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qreal VEllipticalArc::GetRadius2() const
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|
{
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|
return d->radius2;
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|
}
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|
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//---------------------------------------------------------------------------------------------------------------------
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/**
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|
* @brief GetCenter return center point.
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|
* @return center point.
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|
*/
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|
VPointF VEllipticalArc::GetCenter() const
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|
{
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|
return d->center;
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|
}
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|
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//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetCenter(const VPointF &value)
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|
{
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|
d->center = value;
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|
}
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|
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|
//---------------------------------------------------------------------------------------------------------------------
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|
QString VEllipticalArc::GetFormulaLength() const
|
|
{
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|
return d->formulaLength;
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|
}
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|
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|
//---------------------------------------------------------------------------------------------------------------------
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void VEllipticalArc::SetFormulaLength(const QString &formula, qreal value)
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|
{
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|
d->formulaLength = formula;
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|
FindF2(value);
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|
}
|