110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
/****************************************************************************
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**
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** This file is part of the LibreCAD project, a 2D CAD program
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**
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** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
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** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file gpl-2.0.txt included in the
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** packaging of this file.
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**
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** This program 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 this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**
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** This copyright notice MUST APPEAR in all copies of the script!
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**
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**********************************************************************/
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#ifndef RS_INFORMATION_H
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#define RS_INFORMATION_H
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#include "rs.h"
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class RS_Ellipse;
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class RS_Entity;
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class RS_EntityContainer;
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class RS_Vector;
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class RS_VectorSolutions;
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class RS_Arc;
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class RS_Circle;
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class RS_Line;
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/**
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* Class for getting information about entities. This includes
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* also things like the end point of an element which is
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* nearest to a given coordinate.
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* There's no interaction handled in this class.
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* This class is bound to an entity container.
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*
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* @author Andrew Mustun
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*/
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class RS_Information {
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public:
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RS_Information(RS_EntityContainer& entityContainer);
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static bool isDimension(RS2::EntityType type);
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static bool isTrimmable(RS_Entity* e);
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static bool isTrimmable(RS_Entity* e1, RS_Entity* e2);
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RS_Vector getNearestEndpoint(const RS_Vector& point,
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double* dist = nullptr) const;
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RS_Vector getNearestPointOnEntity(const RS_Vector& point,
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bool onEntity=true,
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double* dist = nullptr,
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RS_Entity** entity=nullptr) const;
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RS_Entity* getNearestEntity(const RS_Vector& point,
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double* dist = nullptr,
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RS2::ResolveLevel level=RS2::ResolveAll) const;
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static RS_VectorSolutions getIntersection(RS_Entity const* e1,
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RS_Entity const* e2,
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bool onEntities = false);
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static RS_VectorSolutions getIntersectionLineLine(RS_Line* e1,
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RS_Line* e2);
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static RS_VectorSolutions getIntersectionLineArc(RS_Line* line,
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RS_Arc* arc);
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static RS_VectorSolutions getIntersectionArcArc(RS_Entity const* e1,
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RS_Entity const* e2);
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static RS_VectorSolutions getIntersectionEllipseEllipse(
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RS_Ellipse const* e1,
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RS_Ellipse const* e2);
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static RS_VectorSolutions getIntersectionArcEllipse(RS_Arc* e1,
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RS_Ellipse* e2);
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static RS_VectorSolutions getIntersectionCircleEllipse(RS_Circle* e1,
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RS_Ellipse* e2);
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static RS_VectorSolutions getIntersectionEllipseLine(RS_Line* line,
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RS_Ellipse* ellipse);
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/**
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* @brief createQuadrilateral form quadrilateral from 4 straight lines
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* @param container contains 4 straight lines
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* @return ordered vertices of quadrilateral formed by the 4 lines
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*/
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static RS_VectorSolutions createQuadrilateral(const RS_EntityContainer& container);
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static bool isPointInsideContour(const RS_Vector& point,
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RS_EntityContainer* contour,
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bool* onContour=nullptr);
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private:
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RS_EntityContainer* container;
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};
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#endif
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