mydxfarc.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
 * copies to the public, perform publicly and display publicly, and to
 * permit others to do so.
 */
 
 
#ifndef MY_DXF_ARC_HPP
#define MY_DXF_ARC_HPP 1
 
 
#include "mydxfentities.hpp"
 
 
class MyDXFArc : public MyDXFPathEntity
{
 
    Vec3D    _pc;
    double   _r;
    double   _ang1; // Must be between 0 and 2 pi.
    double   _ang2; // Must be between 0 and 2 pi.
 
public:
 
    MyDXFArc() : _r(1.0), _ang1(0.0), _ang2(2.0*M_PI) {};
 
    MyDXFArc( class MyDXFFile *dxf );
 
    virtual ~MyDXFArc() {}
 
    virtual MyDXFArc *copy( void ) const { return( new MyDXFArc( *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_ARC ); }
 
    Vec3D center( void ) const { return( _pc ); }
 
    double radius( void ) const { return( _r ); }
 
    virtual Vec3D start( void ) const {
        return( Vec3D(_pc[0] + _r*cos(_ang1), _pc[1] + _r*sin(_ang1), _pc[2] ) ); 
    }
 
    virtual Vec3D end( void ) const { 
        return( Vec3D(_pc[0] + _r*cos(_ang2), _pc[1] + _r*sin(_ang2), _pc[2] ) ); 
    }
 
    void set_pc( const Vec3D &pc ) { _pc = pc; }
 
    void set_r( double r ) { _r = r; }
 
    void set_ang1( double ang1 );
 
    void set_ang2( double ang2 );
    
    double get_ang1( void ) const { return( _ang1 ); }
 
    double get_ang2( void ) const { return( _ang2 ); }
 
    void set_center_and_ends( const Vec3D &c, const Vec3D &s, const Vec3D &e );
 
    void set_center_point( const Vec3D &s, const Vec3D &e );
 
    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 MyDXFArc &arc, 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