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by Scott Howard
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/****************************************************************************
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**
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* Draw a common tangent circle of 3 existing circles
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* Problem of Appollonius
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Copyright (C) 2012 Dongxu Li (dongxuli2011@gmail.com)
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Copyright (C) 2011 R. van Twisk (librecad@rvt.dds.nl)
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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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#ifndef RS_ACTIONDRAWCIRCLETAN3_H
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#define RS_ACTIONDRAWCIRCLETAN3_H
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#include <QVector> |
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#include "rs_circle.h" |
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#include "rs_previewactioninterface.h" |
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/**
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* Draw ellipse by foci and a point on ellipse
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*
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* @author Dongxu Li
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*/
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class RS_ActionDrawCircleTan3 : public RS_PreviewActionInterface { |
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Q_OBJECT
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public: |
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/**
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* Action States.
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*/
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enum Status { |
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SetCircle1, // Setting the First Circle. */ |
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SetCircle2, // Setting the Second Circle. */ |
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SetCircle3, // Setting the Third Circle. */ |
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SetCenter // select the closest tangential Circle. */ |
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};
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public: |
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RS_ActionDrawCircleTan3(RS_EntityContainer& container, |
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RS_GraphicView& graphicView); |
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~RS_ActionDrawCircleTan3(); |
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static QAction* createGUIAction(RS2::ActionType type, QObject* /*parent*/); |
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virtual RS2::ActionType rtti() { |
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return RS2::ActionDrawCircleTan3; |
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}
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virtual void init(int status=0); |
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virtual void trigger(); |
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virtual bool getData(); |
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virtual bool preparePreview(); |
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virtual void mouseMoveEvent(QMouseEvent* e); |
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virtual void mouseReleaseEvent(QMouseEvent* e); |
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// virtual void coordinateEvent(RS_CoordinateEvent* e);
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// virtual void commandEvent(RS_CommandEvent* e);
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virtual QStringList getAvailableCommands(); |
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virtual void finish(bool updateTB=true); |
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virtual void updateMouseButtonHints(); |
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virtual void updateMouseCursor(); |
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// virtual void updateToolBar();
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// virtual void showOptions();
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// virtual void hideOptions();
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//protected:
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private: |
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QVector<double> verifyCenter(const RS_Vector& center) const; |
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QVector<double> getRadii(RS_AtomicEntity* entity, const RS_Vector& center) const; |
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RS_Entity* catchCircle(QMouseEvent* e); |
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QVector<RS_AtomicEntity*> circles; |
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RS_CircleData cData; |
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QVector<RS_CircleData> m_vCandidates; |
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RS_Vector coord; |
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bool valid; |
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QVector<RS2::EntityType> enTypeList; |
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//keep a list of centers found
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QList<RS_Circle> candidates; |
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RS_VectorSolutions centers; |
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};
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#endif
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