valentina/src/libs/vgeometry/varc.cpp

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/************************************************************************
**
** @file varc.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date November 15, 2013
**
** @brief
** @copyright
** This source code is part of the Valentine project, a pattern making
** program, whose allow create and modeling patterns of clothing.
** Copyright (C) 2013-2015 Valentina project
** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
**
** Valentina is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** Valentina is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
**
*************************************************************************/
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#include "varc.h"
#include "varc_p.h"
#include "../ifc/ifcdef.h"
#include <QDebug>
#include <QLineF>
#include <QPainterPath>
#include <QPointF>
#include <QtCore/qmath.h>
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//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VArc default constructor.
*/
VArc::VArc ()
:VAbstractCurve(GOType::Arc), d (new VArcData)
{}
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//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VArc constructor.
* @param center center point.
* @param radius arc radius.
* @param f1 start angle (degree).
* @param f2 end angle (degree).
*/
VArc::VArc (VPointF center, qreal radius, QString formulaRadius, qreal f1, QString formulaF1, qreal f2,
QString formulaF2, quint32 idObject, Draw mode)
: VAbstractCurve(GOType::Arc, idObject, mode),
d (new VArcData(center, radius, formulaRadius, f1, formulaF1, f2, formulaF2))
{
ArcName();
}
//---------------------------------------------------------------------------------------------------------------------
VArc::VArc(VPointF center, qreal radius, qreal f1, qreal f2)
: VAbstractCurve(GOType::Arc, NULL_ID, Draw::Calculation), d (new VArcData(center, radius, f1, f2))
{
ArcName();
}
//---------------------------------------------------------------------------------------------------------------------
VArc::VArc(qreal length, QString formulaLength, VPointF center, qreal radius, QString formulaRadius, qreal f1,
QString formulaF1, quint32 idObject, Draw mode)
: VAbstractCurve(GOType::Arc, idObject, mode),
d (new VArcData(formulaLength, center, radius, formulaRadius, f1, formulaF1))
{
ArcName();
FindF2(length);
}
//---------------------------------------------------------------------------------------------------------------------
VArc::VArc(qreal length, VPointF center, qreal radius, qreal f1)
: VAbstractCurve(GOType::Arc, NULL_ID, Draw::Calculation), d (new VArcData(center, radius, f1))
{
ArcName();
FindF2(length);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VArc copy constructor
* @param arc arc
*/
VArc::VArc(const VArc &arc)
: VAbstractCurve(arc), d (arc.d)
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief operator = assignment operator
* @param arc arc
* @return arc
*/
VArc &VArc::operator =(const VArc &arc)
{
if ( &arc == this )
{
return *this;
}
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VAbstractCurve::operator=(arc);
d = arc.d;
return *this;
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}
//---------------------------------------------------------------------------------------------------------------------
VArc::~VArc()
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetLength return arc length.
* @return length.
*/
qreal VArc::GetLength() const
{
qreal length = (M_PI * d->radius)/180 * AngleArc();
if (d->isFlipped)
{
length = length * -1;
}
return length;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetP1 return point associated with start angle.
* @return point.
*/
QPointF VArc::GetP1() const
{
QPointF p1 ( GetCenter().x () + d->radius, GetCenter().y () );
QLineF centerP1(GetCenter().toQPointF(), p1);
centerP1.setAngle(d->f1);
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return centerP1.p2();
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetP2 return point associated with end angle.
* @return точку point.
*/
QPointF VArc::GetP2 () const
{
QPointF p2 ( GetCenter().x () + d->radius, GetCenter().y () );
QLineF centerP2(GetCenter().toQPointF(), p2);
centerP2.setAngle(d->f2);
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return centerP2.p2();
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}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief AngleArc calculate arc angle.
* @return angle in degree.
*/
qreal VArc::AngleArc() const
{
if ((qFuzzyCompare(d->f1+1, 0+1) && qFuzzyCompare(d->f2, 360)) ||
(qFuzzyCompare(d->f1, 360) && qFuzzyCompare(d->f2+1, 0+1)))
{
return 360;
}
QLineF l1(0, 0, 100, 100);
l1.setAngle(d->f1);
QLineF l2(0, 0, 100, 100);
l2.setAngle(d->f2);
qreal ang = l1.angleTo(l2);
if (d->isFlipped)
{
ang = 360 - ang;
}
return ang;
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}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetPoints return list of points needed for drawing arc.
* @return list of points
*/
QVector<QPointF> VArc::GetPoints() const
{
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QVector<QPointF> points;
qreal i = 0;
const qreal angle = AngleArc();
const qint32 k = static_cast<qint32>(angle);
const qreal s = angle/(k/4); //-V636
do
{
QPointF pStart;
if (d->isFlipped)
{
pStart = GetP2();
}
else
{
pStart = GetP1();
}
QLineF line(d->center.toQPointF(), pStart);
line.setAngle(line.angle()+i);
points.append(line.p2());
i = i + s;
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if (i > angle)
{
QLineF line(d->center.toQPointF(), pStart);
line.setAngle(line.angle()+angle);
points.append(line.p2());
}
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} while (i <= angle);
return points;
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}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief CutArc cut arc into two arcs.
* @param length length first arc.
* @param arc1 first arc.
* @param arc2 second arc.
* @return point cutting
*/
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QPointF VArc::CutArc(const qreal &length, VArc &arc1, VArc &arc2) const
{
//Always need return two arcs, so we must correct wrong length.
qreal len = 0;
if (length < this->GetLength()*0.02)
{
len = this->GetLength()*0.02;
}
else if ( length > this->GetLength()*0.98)
{
len = this->GetLength()*0.98;
}
else
{
len = length;
}
qreal n = (len*180)/(M_PI*d->radius);
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QLineF line(GetCenter().toQPointF(), GetP1());
line.setAngle(line.angle()+n);
arc1 = VArc (d->center, d->radius, d->formulaRadius, d->f1, d->formulaF1, line.angle(),
QString().setNum(line.angle()), getIdObject(), getMode());
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arc2 = VArc (d->center, d->radius, d->formulaRadius, line.angle(), QString().setNum(line.angle()), d->f2,
d->formulaF2, getIdObject(), getMode());
return line.p2();
}
//---------------------------------------------------------------------------------------------------------------------
QPointF VArc::CutArc(const qreal &length) const
{
VArc arc1;
VArc arc2;
return this->CutArc(length, arc1, arc2);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setId keep id arc in data.
* @param id id arc in data.
*/
void VArc::setId(const quint32 &id)
{
VAbstractCurve::setId(id);
setName(ARC_ + QString("%1_%2").arg(d->center.name()).arg(id));
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::ArcName()
{
setName(ARC_ + QString("%1").arg(this->GetCenter().name()));
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::FindF2(qreal length)
{
length < 0 ? d->isFlipped = true : d->isFlipped = false;
if (length >= MaxLength())
{
length = MaxLength();
}
qreal arcAngle = (qAbs(length)*180)/(M_PI*d->radius);
if (d->isFlipped)
{
arcAngle = arcAngle * -1;
}
QLineF startAngle(0, 0, 100, 0);
startAngle.setAngle(d->f1 + arcAngle);// We use QLineF just because it is easy way correct angle value
d->f2 = startAngle.angle();
d->formulaF2 = QString("%1").arg(d->f2);
}
//---------------------------------------------------------------------------------------------------------------------
qreal VArc::MaxLength() const
{
return 2*M_PI*d->radius;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetF1 return start angle.
* @return angle in degree.
*/
QString VArc::GetFormulaF1() const
{
return d->formulaF1;
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::SetFormulaF1(const QString &formula, qreal value)
{
d->formulaF1 = formula;
d->f1 = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetF1 return formula for start angle.
* @return string with formula.
*/
qreal VArc::GetStartAngle() const
{
return d->f1;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetF2 return end angle.
* @return angle in degree.
*/
QString VArc::GetFormulaF2() const
{
return d->formulaF2;
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::SetFormulaF2(const QString &formula, qreal value)
{
d->formulaF2 = formula;
d->f2 = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetF2 return formula for end angle.
* @return string with formula.
*/
qreal VArc::GetEndAngle() const
{
return d->f2;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetRadius return arc radius.
* @return radius.
*/
QString VArc::GetFormulaRadius() const
{
return d->formulaRadius;
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::SetFormulaRadius(const QString &formula, qreal value)
{
d->formulaRadius = formula;
d->radius = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetRadius return formula for radius.
* @return string with formula.
*/
qreal VArc::GetRadius() const
{
return d->radius;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief GetCenter return center point.
* @return center point.
*/
VPointF VArc::GetCenter() const
{
return d->center;
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}
//---------------------------------------------------------------------------------------------------------------------
void VArc::SetCenter(const VPointF &value)
{
d->center = value;
}
//---------------------------------------------------------------------------------------------------------------------
QString VArc::GetFormulaLength() const
{
return d->formulaLength;
}
//---------------------------------------------------------------------------------------------------------------------
void VArc::SetFormulaLength(const QString &formula, qreal value)
{
d->formulaLength = formula;
FindF2(value);
}