625 lines
21 KiB
C++
625 lines
21 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 <QLineF>
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#include <QPoint>
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#include "../vmisc/def.h"
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#include "../vmisc/vmath.h"
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#include "../ifc/ifcdef.h"
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#include "../vmisc/vabstractapplication.h"
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#include "vabstractcurve.h"
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#include "vellipticalarc_p.h"
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#include "vspline.h"
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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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: VAbstractArc(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 (const VPointF ¢er, qreal radius1, qreal radius2, const QString &formulaRadius1,
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const QString &formulaRadius2, qreal f1, const QString &formulaF1, qreal f2,
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const QString &formulaF2, qreal rotationAngle, const QString &formulaRotationAngle,
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quint32 idObject, Draw mode)
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: VAbstractArc(GOType::EllipticalArc, center, f1, formulaF1, f2, formulaF2, idObject, mode),
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d (new VEllipticalArcData(radius1, radius2, formulaRadius1, formulaRadius2, rotationAngle, formulaRotationAngle))
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{
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc::VEllipticalArc(const VPointF ¢er, qreal radius1, qreal radius2, qreal f1, qreal f2,
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qreal rotationAngle)
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: VAbstractArc(GOType::EllipticalArc, center, f1, f2, NULL_ID, Draw::Calculation),
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d (new VEllipticalArcData(radius1, radius2, 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, const QString &formulaLength, const VPointF ¢er, qreal radius1,
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qreal radius2, const QString &formulaRadius1, const QString &formulaRadius2, qreal f1,
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const QString &formulaF1, qreal rotationAngle, const QString &formulaRotationAngle,
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quint32 idObject, Draw mode)
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: VAbstractArc(GOType::EllipticalArc, formulaLength, center, f1, formulaF1, idObject, mode),
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d (new VEllipticalArcData(radius1, radius2, formulaRadius1, formulaRadius2, rotationAngle, formulaRotationAngle))
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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, const VPointF ¢er, qreal radius1, qreal radius2, qreal f1,
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qreal rotationAngle)
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: VAbstractArc(GOType::EllipticalArc, center, f1, NULL_ID, Draw::Calculation),
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d (new VEllipticalArcData(radius1, radius2, 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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: VAbstractArc(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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VAbstractArc::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::Rotate(const QPointF &originPoint, qreal degrees, const QString &prefix) const
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{
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const VPointF center = GetCenter().Rotate(originPoint, degrees);
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const QPointF p1 = VPointF::RotatePF(originPoint, GetP1(), degrees);
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const QPointF p2 = VPointF::RotatePF(originPoint, GetP2(), degrees);
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const qreal f1 = QLineF(static_cast<QPointF>(center), p1).angle() - GetRotationAngle();
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const qreal f2 = QLineF(static_cast<QPointF>(center), p2).angle() - GetRotationAngle();
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VEllipticalArc elArc(center, GetRadius1(), GetRadius2(), f1, f2, GetRotationAngle());
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elArc.setName(name() + prefix);
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elArc.SetColor(GetColor());
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elArc.SetPenStyle(GetPenStyle());
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return elArc;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc VEllipticalArc::Flip(const QLineF &axis, const QString &prefix) const
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{
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const VPointF center = GetCenter().Flip(axis);
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const QPointF p1 = VPointF::FlipPF(axis, GetP1());
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const QPointF p2 = VPointF::FlipPF(axis, GetP2());
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const qreal f1 = QLineF(static_cast<QPointF>(center), p1).angle() - GetRotationAngle();
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const qreal f2 = QLineF(static_cast<QPointF>(center), p2).angle() - GetRotationAngle();
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VEllipticalArc elArc(center, GetRadius1(), GetRadius2(), f1, f2, GetRotationAngle());
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elArc.setName(name() + prefix);
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elArc.SetFlipped(true);
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elArc.SetColor(GetColor());
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elArc.SetPenStyle(GetPenStyle());
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return elArc;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VEllipticalArc VEllipticalArc::Move(qreal length, qreal angle, const QString &prefix) const
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{
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const VPointF center = GetCenter().Move(length, angle);
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const QPointF p1 = VPointF::MovePF(GetP1(), length, angle);
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const QPointF p2 = VPointF::MovePF(GetP2(), length, angle);
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const qreal f1 = QLineF(static_cast<QPointF>(center), p1).angle() - GetRotationAngle();
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const qreal f2 = QLineF(static_cast<QPointF>(center), p2).angle() - GetRotationAngle();
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VEllipticalArc elArc(center, GetRadius1(), GetRadius2(), f1, f2, GetRotationAngle());
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elArc.setName(name() + prefix);
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elArc.SetColor(GetColor());
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elArc.SetPenStyle(GetPenStyle());
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return elArc;
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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 = PathLength(GetPoints());
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if (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(GetStartAngle());
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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(GetEndAngle());
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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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// Original idea http://alex-black.ru/article.php?content=109#head_3
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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 = 0;
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qreal y = 0;
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qreal angleRad = qDegreesToRadians(angle);
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const int n = GetQuadransRad(angleRad);
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if (VFuzzyComparePossibleNulls(angleRad, 0) || VFuzzyComparePossibleNulls(angleRad, M_2PI) ||
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VFuzzyComparePossibleNulls(angleRad, -M_2PI))
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{ // 0 (360, -360) degress
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x = d->radius1;
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y = 0;
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}
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else if (VFuzzyComparePossibleNulls(angleRad, M_PI_2) || VFuzzyComparePossibleNulls(angleRad, -3 * M_PI_2))
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{ // 90 (-270) degress
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x = 0;
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y = d->radius2;
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}
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else if (VFuzzyComparePossibleNulls(angleRad, M_PI) || VFuzzyComparePossibleNulls(angleRad, -M_PI))
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{ // 180 (-180) degress
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x = -d->radius1;
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y = 0;
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}
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else if (VFuzzyComparePossibleNulls(angleRad, 3 * M_PI_2) || VFuzzyComparePossibleNulls(angleRad, -M_PI_2))
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{ // 270 (-90) degress
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x = 0;
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y = -d->radius2;
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}
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else
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{ // cases between
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const qreal r1Pow = qPow(d->radius1, 2);
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const qreal r2Pow = qPow(d->radius2, 2);
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const qreal angleTan = qTan(angleRad);
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const qreal angleTan2 = qPow(angleTan, 2);
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x = qSqrt((r1Pow * r2Pow) / (r1Pow * angleTan2 + r2Pow));
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y = angleTan * x;
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}
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switch (n)
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{
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case 1:
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x = +x;
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y = +y;
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break;
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case 2:
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x = -x;
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y = +y;
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break;
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case 3:
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x = -x;
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y = -y;
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break;
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case 4:
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x = +x;
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y = -y;
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break;
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default:
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break;
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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(static_cast<QPointF>(GetCenter()), 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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int VEllipticalArc::GetQuadransRad(qreal &rad)
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{
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if (rad > M_PI)
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{
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rad = rad - M_2PI;
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}
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if (rad < -M_PI)
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{
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rad = rad + M_2PI;
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}
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int n = 0;
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if (rad >= 0)
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{
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if (rad <= M_PI_2)
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{
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n = 1;
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rad = -rad;
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}
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else if (rad > M_PI_2 && rad <= M_PI)
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{
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n = 2;
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rad = M_PI+rad;
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}
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}
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else
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{
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if (rad >= -M_PI_2)
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{
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n = 4;
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}
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else if (rad < -M_PI_2 && rad >= -M_PI)
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{
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n = 3;
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rad = M_PI-rad;
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}
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}
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return n;
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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(GetStartAngle());
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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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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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const qreal minLength = ToPixel(1, Unit::Mm);
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const qreal fullLength = GetLength();
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if (fullLength <= minLength)
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{
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arc1 = VEllipticalArc();
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arc2 = VEllipticalArc();
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return QPointF();
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}
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const qreal maxLength = fullLength - minLength;
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if (length < minLength)
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{
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len = minLength;
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}
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else if (length > maxLength)
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{
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len = maxLength;
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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), GetCenter(), d->radius1, d->radius2,
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d->formulaRadius1, d->formulaRadius2, GetStartAngle(), GetFormulaF1(), d->rotationAngle,
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GetFormulaRotationAngle(), 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 (GetCenter(), d->radius1, d->radius2, d->formulaRadius1, d->formulaRadius2,
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arc1.GetEndAngle(), arc1.GetFormulaF2(), GetEndAngle(), GetFormulaF2(), d->rotationAngle,
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GetFormulaRotationAngle(), 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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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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SetFlipped(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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// we need to set the end angle, because we want to use GetLength()
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SetFormulaF2(QString::number(endAngle), endAngle);
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qreal lenBez = GetLength(); // first approximation of length
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const qreal eps = ToPixel(0.1, Unit::Mm);
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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 (gap < 0.0001)
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{
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break;
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|
}
|
|
if (lenBez > length)
|
|
{ // we selected too big end angle
|
|
endAngle = endAngle - qAbs(gap);
|
|
}
|
|
else
|
|
{ // we selected too little end angle
|
|
endAngle = endAngle + qAbs(gap);
|
|
}
|
|
// we need to set d->f2, because we use it when we calculate GetLength
|
|
SetFormulaF2(QString::number(endAngle), endAngle);
|
|
lenBez = GetLength();
|
|
}
|
|
SetFormulaF2(QString::number(endAngle), endAngle);
|
|
SetFormulaLength(QString::number(qApp->fromPixel(lenBez)));
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
qreal VEllipticalArc::MaxLength() const
|
|
{
|
|
const qreal h = qPow(d->radius1 - d->radius2, 2) / qPow(d->radius1 + d->radius2, 2);
|
|
const qreal ellipseLength = M_PI * (d->radius1 + d->radius2) * (1+3*h/(10+qSqrt(4-3*h)));
|
|
return ellipseLength;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetFormulaRadius1 return formula for major radius.
|
|
* @return radius.
|
|
*/
|
|
QString VEllipticalArc::GetFormulaRadius1() const
|
|
{
|
|
return d->formulaRadius1;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetFormulaRadius2 return formula for minor radius.
|
|
* @return radius.
|
|
*/
|
|
QString VEllipticalArc::GetFormulaRadius2() const
|
|
{
|
|
return d->formulaRadius2;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetFormulaRotationAngle return formula for rotation angle.
|
|
* @return rotationAngle.
|
|
*/
|
|
QString VEllipticalArc::GetFormulaRotationAngle() const
|
|
{
|
|
return d->formulaRotationAngle;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
void VEllipticalArc::SetFormulaRadius1(const QString &formula, qreal value)
|
|
{
|
|
d->formulaRadius1 = formula;
|
|
d->radius1 = value;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
void VEllipticalArc::SetFormulaRadius2(const QString &formula, qreal value)
|
|
{
|
|
d->formulaRadius2 = formula;
|
|
d->radius2 = value;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
void VEllipticalArc::SetFormulaRotationAngle(const QString &formula, qreal value)
|
|
{
|
|
d->formulaRotationAngle = formula;
|
|
d->rotationAngle = value;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetRadius1 return elliptical arc major radius.
|
|
* @return string with formula.
|
|
*/
|
|
qreal VEllipticalArc::GetRadius1() const
|
|
{
|
|
return d->radius1;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetRadius2 return elliptical arc minor radius.
|
|
* @return string with formula.
|
|
*/
|
|
qreal VEllipticalArc::GetRadius2() const
|
|
{
|
|
return d->radius2;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
/**
|
|
* @brief GetRotationAngle return rotation angle.
|
|
* @return rotationAngle.
|
|
*/
|
|
qreal VEllipticalArc::GetRotationAngle() const
|
|
{
|
|
return d->rotationAngle;
|
|
}
|