385 lines
12 KiB
C++
385 lines
12 KiB
C++
/************************************************************************
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**
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** @file varc.cpp
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** @author Roman Telezhynskyi <dismine(at)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) 2013-2015 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 "varc.h"
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#include <QtCore/qmath.h>
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#include <QLineF>
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#include <QPointF>
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#include "../ifc/../vmisc/def.h"
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#include "../ifc/ifcdef.h"
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#include "vabstractcurve.h"
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#include "varc_p.h"
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#include "vspline.h"
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class QPointF;
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief VArc default constructor.
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*/
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VArc::VArc ()
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: VAbstractArc(GOType::Arc),
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d (new VArcData)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief VArc constructor.
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* @param center center point.
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* @param radius arc 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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VArc::VArc (const VPointF ¢er, qreal radius, const QString &formulaRadius, qreal f1, const QString &formulaF1,
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qreal f2, const QString &formulaF2, quint32 idObject, Draw mode)
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: VAbstractArc(GOType::Arc, center, f1, formulaF1, f2, formulaF2, idObject, mode),
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d (new VArcData(radius, formulaRadius))
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{
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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VArc::VArc(const VPointF ¢er, qreal radius, qreal f1, qreal f2)
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: VAbstractArc(GOType::Arc, center, f1, f2, NULL_ID, Draw::Calculation),
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d (new VArcData(radius))
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{
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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VArc::VArc(qreal length, const QString &formulaLength, const VPointF ¢er, qreal radius,
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const QString &formulaRadius, qreal f1, const QString &formulaF1, quint32 idObject, Draw mode)
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: VAbstractArc(GOType::Arc, formulaLength, center, f1, formulaF1, idObject, mode),
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d (new VArcData(radius, formulaRadius))
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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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VArc::VArc(qreal length, const VPointF ¢er, qreal radius, qreal f1)
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: VAbstractArc(GOType::Arc, center, f1, NULL_ID, Draw::Calculation),
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d (new VArcData(radius))
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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 VArc copy constructor
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* @param arc arc
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*/
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VArc::VArc(const VArc &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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VArc &VArc::operator =(const VArc &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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VArc VArc::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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VArc arc(center, GetRadius(), QLineF(center, p1).angle(), QLineF(center, p2).angle());
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arc.setName(name() + prefix);
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return arc;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VArc::~VArc()
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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 VArc::GetLength() const
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{
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qreal length = d->radius * qDegreesToRadians(AngleArc());
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if (IsFlipped())
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{
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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 VArc::GetP1() const
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{
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QPointF p1 ( GetCenter().x () + d->radius, GetCenter().y () );
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QLineF centerP1(GetCenter(), p1);
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centerP1.setAngle(GetStartAngle());
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return centerP1.p2();
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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 точку point.
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*/
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QPointF VArc::GetP2 () const
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{
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QPointF p2 ( GetCenter().x () + d->radius, GetCenter().y () );
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QLineF centerP2(GetCenter(), p2);
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centerP2.setAngle(GetEndAngle());
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return centerP2.p2();
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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> VArc::GetPoints() const
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{
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QVector<QPointF> points;
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QVector<qreal> sectionAngle;
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QPointF pStart;
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IsFlipped() ? pStart = GetP2() : pStart = GetP1();
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{
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qreal angle = AngleArc();
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if (qFuzzyIsNull(angle))
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{
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points.append(pStart);
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return points;
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}
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if (angle > 360 || angle < 0)
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{// Filter incorect value
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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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}
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for (int i = 0; i < sectionAngle.size(); ++i)
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{
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const qreal lDistance = GetRadius() * 4.0/3.0 * qTan(qDegreesToRadians(sectionAngle.at(i)) * 0.25);
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const QPointF center = GetCenter();
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QLineF lineP1P2(pStart, center);
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lineP1P2.setAngle(lineP1P2.angle() - 90.0);
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lineP1P2.setLength(lDistance);
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QLineF lineP4P3(center, pStart);
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lineP4P3.setAngle(lineP4P3.angle() + sectionAngle.at(i));
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lineP4P3.setLength(GetRadius());//in case of computing error
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lineP4P3 = QLineF(lineP4P3.p2(), center);
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lineP4P3.setAngle(lineP4P3.angle() + 90.0);
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lineP4P3.setLength(lDistance);
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VSpline spl(VPointF(pStart), lineP1P2.p2(), lineP4P3.p2(), VPointF(lineP4P3.p1()), 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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pStart = lineP4P3.p1();
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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 VArc::CutArc(const qreal &length, VArc &arc1, VArc &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 = VArc();
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arc2 = VArc();
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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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qreal n = qRadiansToDegrees(len/d->radius); // n - is angle in degrees
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QLineF line(GetCenter(), GetP1());
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line.setAngle(line.angle()+n);
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arc1 = VArc (GetCenter(), d->radius, d->formulaRadius, GetStartAngle(), GetFormulaF1(), line.angle(),
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QString().setNum(line.angle()), getIdObject(), getMode());
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arc2 = VArc (GetCenter(), d->radius, d->formulaRadius, line.angle(), QString().setNum(line.angle()), GetEndAngle(),
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GetFormulaF2(), getIdObject(), getMode());
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return line.p2();
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPointF VArc::CutArc(const qreal &length) const
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{
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VArc arc1;
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VArc arc2;
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return this->CutArc(length, arc1, arc2);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VArc::CreateName()
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{
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QString name = ARC_ + 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 VArc::FindF2(qreal length)
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{
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SetFlipped(length < 0);
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if (length >= MaxLength())
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{
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length = MaxLength();
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}
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qreal arcAngle = qAbs(qRadiansToDegrees(length/d->radius));
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if (IsFlipped())
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{
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arcAngle = arcAngle * -1;
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}
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QLineF startAngle(0, 0, 100, 0);
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startAngle.setAngle(GetStartAngle() + arcAngle);// We use QLineF just because it is easy way correct angle value
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SetFormulaF2(QString().number(startAngle.angle()), startAngle.angle());
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VArc::MaxLength() const
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{
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return M_2PI*d->radius;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return arc radius.
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* @return radius.
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*/
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QString VArc::GetFormulaRadius() const
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{
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return d->formulaRadius;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VArc::SetFormulaRadius(const QString &formula, qreal value)
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{
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d->formulaRadius = formula;
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d->radius = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief GetRadius return formula for radius.
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* @return string with formula.
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*/
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qreal VArc::GetRadius() const
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{
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return d->radius;
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}
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