Added class VAbstractPiece.
--HG-- branch : feature
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parent
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301
src/libs/vlayout/vabstractpiece.cpp
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301
src/libs/vlayout/vabstractpiece.cpp
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@ -0,0 +1,301 @@
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/************************************************************************
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**
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** @file
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 3 11, 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) 2016 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 "vabstractpiece.h"
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#include <QLineF>
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#include <QSet>
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#include <QVector>
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#include <QDebug>
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#include "../vgeometry/vgobject.h"
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractPiece::VAbstractPiece()
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{}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractPiece::VAbstractPiece(const VAbstractPiece &piece)
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{
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Q_UNUSED(piece)
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}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractPiece &VAbstractPiece::operator=(const VAbstractPiece &piece)
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{
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if ( &piece == this )
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{
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return *this;
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}
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return *this;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractPiece::~VAbstractPiece()
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{}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VAbstractPiece::SumTrapezoids(const QVector<QPointF> &points)
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{
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// Calculation a polygon area through the sum of the areas of trapezoids
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qreal s, res = 0;
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const int n = points.size();
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if(n > 2)
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{
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for (int i = 0; i < n; ++i)
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{
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if (i == 0)
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{
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//if i == 0, then y[i-1] replace on y[n-1]
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s = points.at(i).x()*(points.at(n-1).y() - points.at(i+1).y());
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res += s;
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}
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else
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{
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if (i == n-1)
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{
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// if i == n-1, then y[i+1] replace on y[0]
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s = points.at(i).x()*(points.at(i-1).y() - points.at(0).y());
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res += s;
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}
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else
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{
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s = points.at(i).x()*(points.at(i-1).y() - points.at(i+1).y());
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res += s;
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}
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}
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}
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}
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return res;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief CheckLoops seek and delete loops in equidistant.
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* @param points vector of points of equidistant.
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* @return vector of points of equidistant.
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*/
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QVector<QPointF> VAbstractPiece::CheckLoops(const QVector<QPointF> &points)
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{
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const int count = points.size();
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/*If we got less than 4 points no need seek loops.*/
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if (count < 4)
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{
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qDebug()<<"Less then 4 points. Doesn't need check for loops.";
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return points;
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}
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const bool pathClosed = (points.first() == points.last());
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QVector<QPointF> ekvPoints;
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qint32 i, j, jNext = 0;
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for (i = 0; i < count; ++i)
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{
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/*Last three points no need check.*/
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/*Triangle has not contain loops*/
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if (i > count-3)
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{
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ekvPoints.append(points.at(i));
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continue;
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}
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enum LoopIntersectType { NoIntersection, BoundedIntersection, ParallelIntersection };
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QPointF crosPoint;
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LoopIntersectType status = NoIntersection;
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const QLineF line1(points.at(i), points.at(i+1));
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// Because a path can contains several loops we will seek the last and only then remove the loop(s)
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// That's why we parse from the end
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for (j = count-1; j >= i+2; --j)
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{
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j == count-1 ? jNext = 0 : jNext = j+1;
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QLineF line2(points.at(j), points.at(jNext));
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if(qFuzzyIsNull(line2.length()))
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{//If a path is closed the edge (count-1;0) length will be 0
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continue;
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}
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QSet<qint32> uniqueVertices;
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uniqueVertices << i << i+1 << j;
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// For closed path last point is equal to first. Using index of the first.
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pathClosed && jNext == count-1 ? uniqueVertices << 0 : uniqueVertices << jNext;
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const QLineF::IntersectType intersect = line1.intersect(line2, &crosPoint);
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if (intersect == QLineF::NoIntersection)
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{ // According to the documentation QLineF::NoIntersection indicates that the lines do not intersect;
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// i.e. they are parallel. But parallel also mean they can be on the same line.
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// Method IsPointOnLineviaPDP will check it.
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if (VGObject::IsPointOnLineviaPDP(points.at(j), points.at(i), points.at(i+1))
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// Lines are not neighbors
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&& uniqueVertices.size() == 4
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&& line1.p2() != line2.p2()
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&& line1.p1() != line2.p1()
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&& line1.p2() != line2.p1()
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&& line1.p1() != line2.p2())
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{
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// Left to catch case where segments are on the same line, but do not have real intersections.
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QLineF tmpLine1 = line1;
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QLineF tmpLine2 = line2;
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tmpLine1.setAngle(tmpLine1.angle()+90);
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QPointF tmpCrosPoint;
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const QLineF::IntersectType tmpIntrs1 = tmpLine1.intersect(tmpLine2, &tmpCrosPoint);
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tmpLine1 = line1;
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tmpLine2.setAngle(tmpLine2.angle()+90);
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const QLineF::IntersectType tmpIntrs2 = tmpLine1.intersect(tmpLine2, &tmpCrosPoint);
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if (tmpIntrs1 == QLineF::BoundedIntersection || tmpIntrs2 == QLineF::BoundedIntersection)
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{ // Now we really sure that lines are on the same lines and have real intersections.
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status = ParallelIntersection;
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break;
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}
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}
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}
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else if (intersect == QLineF::BoundedIntersection)
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{
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if (uniqueVertices.size() == 4
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&& line1.p1() != crosPoint
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&& line1.p2() != crosPoint
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&& line2.p1() != crosPoint
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&& line2.p2() != crosPoint)
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{ // Break, but not if lines are neighbors
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status = BoundedIntersection;
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break;
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}
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}
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status = NoIntersection;
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}
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switch (status)
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{
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case ParallelIntersection:
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/*We have found a loop.*/
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// Theoretically there is no big difference which point j or jNext to select.
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// In the end we will draw a line in any case.
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ekvPoints.append(points.at(i));
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ekvPoints.append(points.at(jNext));
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i = j;
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break;
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case BoundedIntersection:
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/*We have found a loop.*/
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ekvPoints.append(points.at(i));
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ekvPoints.append(crosPoint);
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i = j;
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break;
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case NoIntersection:
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/*We have not found loop.*/
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ekvPoints.append(points.at(i));
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break;
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default:
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break;
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}
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}
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return ekvPoints;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief CorrectEquidistantPoints clear equivalent points and remove point on line from equdistant.
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* @param points list of points equdistant.
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* @return corrected list.
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*/
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QVector<QPointF> VAbstractPiece::CorrectEquidistantPoints(const QVector<QPointF> &points, bool removeFirstAndLast)
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{
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if (points.size()<4)//Better don't check if only three points. We can destroy equidistant.
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{
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qDebug()<<"Only three points.";
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return points;
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}
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//Clear equivalent points
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QVector<QPointF> correctPoints = RemoveDublicates(points, removeFirstAndLast);
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if (correctPoints.size()<3)
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{
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return correctPoints;
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}
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//Remove point on line
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for (qint32 i = 1; i <correctPoints.size()-1; ++i)
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{// In this case we alwayse will have bounded intersection, so all is need is to check if point i is on line.
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// Unfortunatelly QLineF::intersect can't be used in this case because of the floating-point accuraccy problem.
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if (VGObject::IsPointOnLineviaPDP(correctPoints.at(i), correctPoints.at(i-1), correctPoints.at(i+1)))
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{
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correctPoints.remove(i);
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}
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}
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return correctPoints;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractPiece::RemoveDublicates(const QVector<QPointF> &points, bool removeFirstAndLast)
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{
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QVector<QPointF> p = points;
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if (removeFirstAndLast)
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{
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if (not p.isEmpty() && p.size() > 1)
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{
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// Path can't be closed
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if (p.first() == p.last())
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{
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#if QT_VERSION < QT_VERSION_CHECK(5, 1, 0)
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p.remove(p.size() - 1);
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#else
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p.removeLast();
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#endif
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}
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}
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}
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for (int i = 0; i < p.size()-1; ++i)
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{
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if (p.at(i) == p.at(i+1))
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{
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if (not removeFirstAndLast && (i == p.size()-1))
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{
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continue;
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}
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p.erase(p.begin() + i + 1);
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--i;
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continue;
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}
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}
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return p;
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}
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53
src/libs/vlayout/vabstractpiece.h
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53
src/libs/vlayout/vabstractpiece.h
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/************************************************************************
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**
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** @file
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 3 11, 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) 2016 Valentina project
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** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
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**
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** Valentina is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Valentina is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#ifndef VABSTRACTPIECE_H
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#define VABSTRACTPIECE_H
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#include <QtGlobal>
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template <class T> class QVector;
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class QPointF;
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class VAbstractPiece
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{
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public:
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VAbstractPiece();
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VAbstractPiece(const VAbstractPiece &piece);
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VAbstractPiece &operator=(const VAbstractPiece &piece);
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virtual ~VAbstractPiece();
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static qreal SumTrapezoids(const QVector<QPointF> &points);
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static QVector<QPointF> CheckLoops(const QVector<QPointF> &points);
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static QVector<QPointF> CorrectEquidistantPoints(const QVector<QPointF> &points, bool removeFirstAndLast = true);
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protected:
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static QVector<QPointF> RemoveDublicates(const QVector<QPointF> &points, bool removeFirstAndLast = true);
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};
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#endif // VABSTRACTPIECE_H
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@ -17,8 +17,9 @@ HEADERS += \
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$$PWD/vbestsquare.h \
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$$PWD/vposition.h \
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$$PWD/vtextmanager.h \
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vposter.h \
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vgraphicsfillitem.h
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$$PWD/vposter.h \
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$$PWD/vgraphicsfillitem.h \
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$$PWD/vabstractpiece.h
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SOURCES += \
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$$PWD/vlayoutgenerator.cpp \
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$$PWD/vbestsquare.cpp \
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$$PWD/vposition.cpp \
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$$PWD/vtextmanager.cpp \
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vposter.cpp \
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vgraphicsfillitem.cpp
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$$PWD/vposter.cpp \
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$$PWD/vgraphicsfillitem.cpp \
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$$PWD/vabstractpiece.cpp
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win32-msvc*:SOURCES += $$PWD/stable.cpp
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@ -28,15 +28,21 @@
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#include "vpiece.h"
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#include "vpiece_p.h"
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#include "../vgeometry/vpointf.h"
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#include "../vgeometry/vabstractcurve.h"
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#include "vcontainer.h"
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#include <QSharedPointer>
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#include <QDebug>
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//---------------------------------------------------------------------------------------------------------------------
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VPiece::VPiece()
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: d(new VPieceData)
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: VAbstractPiece(), d(new VPieceData)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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VPiece::VPiece(const VPiece &piece)
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: d (piece.d)
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: VAbstractPiece(piece), d (piece.d)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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@ -46,6 +52,7 @@ VPiece &VPiece::operator=(const VPiece &piece)
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{
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return *this;
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}
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VAbstractPiece::operator=(piece);
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d = piece.d;
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return *this;
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}
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@ -130,3 +137,113 @@ void VPiece::SetNodes(const QVector<VPieceNode> &nodes)
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{
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d->nodes = nodes;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VPiece::MainPathPoints(const VContainer *data) const
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{
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QVector<QPointF> points;
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for (int i = 0; i < CountNode(); ++i)
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{
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switch (at(i).GetTypeTool())
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{
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case (Tool::NodePoint):
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{
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const QSharedPointer<VPointF> point = data->GeometricObject<VPointF>(at(i).GetId());
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points.append(*point);
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}
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break;
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case (Tool::NodeArc):
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case (Tool::NodeSpline):
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case (Tool::NodeSplinePath):
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{
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const QSharedPointer<VAbstractCurve> curve = data->GeometricObject<VAbstractCurve>(at(i).GetId());
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const QPointF begin = StartSegment(data, i, at(i).GetReverse());
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const QPointF end = EndSegment(data, i, at(i).GetReverse());
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points << curve->GetSegmentPoints(begin, end, at(i).GetReverse());
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}
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break;
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default:
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qDebug()<<"Get wrong tool type. Ignore."<< static_cast<char>(at(i).GetTypeTool());
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break;
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}
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}
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points = CheckLoops(CorrectEquidistantPoints(points));//A path can contains loops
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return points;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPointF VPiece::StartSegment(const VContainer *data, const int &i, bool reverse) const
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{
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if (i < 0 && i > CountNode()-1)
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{
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return QPointF();
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}
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const QSharedPointer<VAbstractCurve> curve = data->GeometricObject<VAbstractCurve>(at(i).GetId());
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QVector<QPointF> points = curve->GetPoints();
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if (reverse)
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{
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points = VGObject::GetReversePoints(points);
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}
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QPointF begin = points.first();
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if (CountNode() > 1)
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{
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if (i == 0)
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||||
{
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||||
if (at(CountNode()-1).GetTypeTool() == Tool::NodePoint)
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{
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begin = *data->GeometricObject<VPointF>(at(CountNode()-1).GetId());
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||||
}
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}
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else
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{
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if (at(i-1).GetTypeTool() == Tool::NodePoint)
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||||
{
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begin = *data->GeometricObject<VPointF>(at(i-1).GetId());
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||||
}
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||||
}
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}
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return begin;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPointF VPiece::EndSegment(const VContainer *data, const int &i, bool reverse) const
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{
|
||||
if (i < 0 && i > CountNode()-1)
|
||||
{
|
||||
return QPointF();
|
||||
}
|
||||
|
||||
const QSharedPointer<VAbstractCurve> curve = data->GeometricObject<VAbstractCurve>(at(i).GetId());
|
||||
|
||||
QVector<QPointF> points = curve->GetPoints();
|
||||
if (reverse)
|
||||
{
|
||||
points = VGObject::GetReversePoints(points);
|
||||
}
|
||||
|
||||
QPointF end = points.last();
|
||||
if (CountNode() > 2)
|
||||
{
|
||||
if (i == CountNode() - 1)
|
||||
{
|
||||
if (at(0).GetTypeTool() == Tool::NodePoint)
|
||||
{
|
||||
end = *data->GeometricObject<VPointF>(at(0).GetId());
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (at(i+1).GetTypeTool() == Tool::NodePoint)
|
||||
{
|
||||
end = *data->GeometricObject<VPointF>(at(i+1).GetId());
|
||||
}
|
||||
}
|
||||
}
|
||||
return end;
|
||||
}
|
||||
|
|
|
@ -32,10 +32,15 @@
|
|||
#include <QtGlobal>
|
||||
#include <QSharedDataPointer>
|
||||
|
||||
#include "../vlayout/vabstractpiece.h"
|
||||
|
||||
class VPieceData;
|
||||
class VPieceNode;
|
||||
class QPointF;
|
||||
class VContainer;
|
||||
template <class T> class QVector;
|
||||
|
||||
class VPiece
|
||||
class VPiece : public VAbstractPiece
|
||||
{
|
||||
public:
|
||||
VPiece();
|
||||
|
@ -53,8 +58,14 @@ public:
|
|||
|
||||
QVector<VPieceNode> GetNodes() const;
|
||||
void SetNodes(const QVector<VPieceNode> &nodes);
|
||||
|
||||
QVector<QPointF> MainPathPoints(const VContainer *data) const;
|
||||
|
||||
private:
|
||||
QSharedDataPointer<VPieceData> d;
|
||||
|
||||
QPointF StartSegment(const VContainer *data, const int &i, bool reverse) const;
|
||||
QPointF EndSegment(const VContainer *data, const int &i, bool reverse) const;
|
||||
};
|
||||
|
||||
Q_DECLARE_TYPEINFO(VPiece, Q_MOVABLE_TYPE);
|
||||
|
|
Loading…
Reference in New Issue
Block a user