mydxfcircle.hpp

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/* Copyright (c) 2010-2011,2014 Taneli Kalvas. All rights reserved.
 *
 * You can redistribute this software and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 * 
 * This library 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 this library (file "COPYING" included in the package);
 * if not, write to the Free Software Foundation, Inc., 51 Franklin
 * Street, Fifth Floor, Boston, MA 02110-1301 USA
 * 
 * If you have questions about your rights to use or distribute this
 * software, please contact Berkeley Lab's Technology Transfer
 * Department at TTD@lbl.gov. Other questions, comments and bug
 * reports should be sent directly to the author via email at
 * taneli.kalvas@jyu.fi.
 * 
 * NOTICE. This software was developed under partial funding from the
 * U.S.  Department of Energy.  As such, the U.S. Government has been
 * granted for itself and others acting on its behalf a paid-up,
 * nonexclusive, irrevocable, worldwide license in the Software to
 * reproduce, prepare derivative works, and perform publicly and
 * display publicly.  Beginning five (5) years after the date
 * permission to assert copyright is obtained from the U.S. Department
 * of Energy, and subject to any subsequent five (5) year renewals,
 * the U.S. Government is granted for itself and others acting on its
 * behalf a paid-up, nonexclusive, irrevocable, worldwide license in
 * the Software to reproduce, prepare derivative works, distribute
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 */


#ifndef MY_DXF_CIRCLE_HPP
#define MY_DXF_CIRCLE_HPP 1


#include "mydxfentities.hpp"


class MyDXFCircle : public MyDXFPathEntity
{

    Vec3D    _pc;
    double   _r;

public:

    MyDXFCircle() : _r(1.0) {};

    MyDXFCircle( class MyDXFFile *dxf );

    virtual ~MyDXFCircle() {}

    virtual MyDXFCircle *copy( void ) const { return( new MyDXFCircle( *this ) ); }

    virtual void explode( class MyDXFEntities *ent, MyDXFFile *dxf, const Transformation *t ) const;

    virtual void write( class MyDXFFile *dxf, std::ofstream &ostr );

    virtual EntityType get_type( void ) const { return( ENTITY_CIRCLE ); }

    Vec3D center( void ) const { return( _pc ); }

    void set_center( const Vec3D &c );

    double radius( void ) const { return( _r ); }

    void set_radius( double r );

    virtual Vec3D start( void ) const { return( _pc+Vec3D(_r,0) ); }

    virtual Vec3D end( void ) const { return( _pc+Vec3D(_r,0) ); }

    virtual void set_start( const Vec3D &s ) {}

    virtual void set_end( const Vec3D &e ) {}

    virtual int ray_cross( double x, double y ) const;

    bool geom_same( const MyDXFCircle &circle, double eps = 1.0e-6 ) const;

    virtual void plot( const class MyDXFFile *dxf, cairo_t *cairo, 
                       const Transformation *t, const double range[4] ) const;

    virtual void get_bbox( Vec3D &min, Vec3D &max, 
                           const class MyDXFFile *dxf, const Transformation *t ) const;

    virtual void scale( class MyDXFFile *dxf, double s );

    virtual void translate( class MyDXFFile *dxf, const Vec3D &dx );

    virtual void rotate_z( class MyDXFFile *dxf, double a );

    virtual void debug_print( std::ostream &os ) const;
};


#endif