/usr/include/CGAL/IO/Dxf_stream.h is in libcgal-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Fernando Cacciola
//
// Descriptions of the file format can be found at
// http://www.autodesk.com/techpubs/autocad/acad2000/dxf/
#ifndef CGAL_DXF_STREAM_H
#define CGAL_DXF_STREAM_H
#include <CGAL/basic.h>
#include <CGAL/Polygon_2.h>
#include <CGAL/IO/Dxf_writer.h>
#include <vector>
#include <fstream>
#include <stdio.h>
namespace CGAL {
class Dxf_layer
{
public:
Dxf_layer( std::string aStr ) : mStr(aStr) {}
std::string str() const { return mStr ; }
private:
std::string mStr ;
} ;
template <class Kernel_>
class Dxf_stream
{
public:
typedef Kernel_ Kernel;
// Define the kernel objects.
typedef typename Kernel::FT NT;
typedef typename Kernel::Point_2 Point_2;
typedef typename Kernel::Segment_2 Segment_2;
typedef typename Kernel::Ray_2 Ray_2;
typedef typename Kernel::Line_2 Line_2;
typedef typename Kernel::Triangle_2 Triangle_2;
typedef typename Kernel::Iso_rectangle_2 Iso_rectangle_2;
typedef CGAL::Polygon_2<Kernel> Polygon_2;
typedef typename Kernel::Circle_2 Circle_2;
protected:
// Data members:
Dxf_writer mWriter ;
int mDefaultDxfColor;
int mDxfColor;
Color mCgalColor ;
std::string mLayer ;
struct Color_less
{
bool operator() ( Color const& a, Color const& b ) const
{
return Color_value(a) < Color_value(b);
}
static int Color_value ( Color const& c )
{
return ( int(c.r()) << 16 ) + ( int(c.g()) << 8 ) + ( int(c.b()) ) ;
}
} ;
typedef std::map<Color,int,Color_less> Color_table ;
typedef typename Color_table::const_iterator Color_table_iterator ;
Color_table mColorTable ;
private:
// Copy constructor and assignment operator - not supported.
Dxf_stream (const Dxf_stream<Kernel>& );
const Dxf_stream<Kernel>& operator= (const Dxf_stream<Kernel>& );
public:
/// \name Constructors and destructor.
//@{
/*!
* Constructor.
* \param filename The name of the output FIG file.
*/
Dxf_stream ( std::ostream& out )
:
mWriter (out)
,mDefaultDxfColor (255)
,mDxfColor (255)
,mCgalColor (WHITE)
,mLayer ("0")
{
setup_initial_color_table();
}
/*!
* Destructor.
*/
virtual ~Dxf_stream () {}
//@}
/// \name Accessing drawing properties.
//@{
/*!
* Get the current layer.
*/
std::string layer() const { return mLayer ; }
/*!
* Get the current CGAL color.
*/
Color color () const { return mCgalColor ; }
/*!
* Get the current DXF color.
*/
int dxf_color () const { return mDxfColor ; }
/*!
* Get the current DXF color.
*/
int default_dxf_color () const { return mDefaultDxfColor ; }
/// \name Set the drawing properties.
//@{
/*!
* Set the current layer.
*/
void set_layer ( std::string aLayer ) { mLayer = aLayer ; }
/*!
* Set the current color.
* \pre The color must be defined.
*/
void set_color ( Color aColor )
{
mCgalColor = aColor ;
Color_table_iterator f = mColorTable.find(aColor);
if ( f != mColorTable.end() )
mDxfColor = f->second ;
else mDxfColor = mDefaultDxfColor ;
}
/*!
* Sets the default DXF color in case a CGAL color is unmapped.
* \param aDxfColor The default DXF color.
*/
void define_default_dxf_color ( int aDxfColor )
{
mDefaultDxfColor = aDxfColor ;
}
/*!
* Adds a mapping between a CGAL Color and a DXF color.
* \param aCgalColor The CGAL color.
* \param aDxfColor The DXF color.
*/
void define_color ( Color const& aCgalColor, int aDxfColor )
{
mColorTable.insert( std::make_pair(aCgalColor,aDxfColor) ) ;
}
//@}
/// \name Writing objects.
//@{
/*!
* Write a 2D segment.
*/
void write_segment_2 (const Segment_2& seg)
{
mWriter.add_segment_2( seg.source(), seg.target(), mLayer, mDxfColor ) ;
}
/*!
* Write a 2D polyline.
* \param begin An iterator of the control points (of type Point_2).
* \param end A past-the-end iterator for the control points.
*/
template <class Input_iterator>
void write_polyline_2 (const Input_iterator& begin, const Input_iterator& end)
{
mWriter.add_polyline_2( begin, end, false, mLayer, mDxfColor ) ;
}
/*!
* Write a 2D polygon (there is an added segment between the last vertex and the first)
* \param begin An iterator of the control points (of type Point_2).
* \param end A past-the-end iterator for the control points.
*/
template <class Input_iterator>
void write_polygon_2 (const Input_iterator& begin, const Input_iterator& end)
{
mWriter.add_polyline_2( begin, end, true, mLayer, mDxfColor ) ;
}
/*!
* Write a 2D polyline but as a sequence of line segments
* \param begin An iterator of the control points (of type Point_2).
* \param end A past-the-end iterator for the control points.
*/
template <class Input_iterator>
void write_open_segment_chain_2 (const Input_iterator& begin, const Input_iterator& end)
{
mWriter.add_segments_2( begin, end, false, mLayer, mDxfColor ) ;
}
/*!
* Write a 2D closed polyline but as a sequence of line segments
* \param begin An iterator of the control points (of type Point_2).
* \param end A past-the-end iterator for the control points.
*/
template <class Input_iterator>
void write_closed_segment_chain_2 (const Input_iterator& begin, const Input_iterator& end)
{
mWriter.add_segments_2( begin, end, true, mLayer, mDxfColor ) ;
}
/*!
* Write a 2D (closed) polygon.
*/
void write_polygon (const Polygon_2& pgn)
{
mWriter.add_polyline_2( pgn.begin(), pgn.end(), true, mLayer, mDxfColor ) ;
}
/// \name Setting the draw properties via the << operator.
//@{
/*!
* Set the current layer.
*/
Dxf_stream& operator<< ( Dxf_layer const& aLayer )
{
set_layer ( aLayer.str() );
return (*this);
}
/*!
* Set the current color.
*/
Dxf_stream& operator<< ( Color const& aColor )
{
set_color (aColor);
return (*this);
}
/// \name Drawing objects via the << operator.
//@{
/*!
* Write a line segment.
*/
Dxf_stream& operator<< (const Segment_2& seg)
{
write_segment_2 (seg);
return (*this);
}
/*!
* Write a polygon.
*/
Dxf_stream& operator<< (const Polygon_2& pgn)
{
write_polygon_2 (pgn);
return (*this);
}
//@}
protected:
void setup_initial_color_table()
{
define_color(BLACK,0);
define_color(RED,1);
define_color(YELLOW,2);
define_color(GREEN,3);
define_color(PURPLE,4);
define_color(BLUE,5);
define_color(VIOLET,6);
define_color(WHITE,7);
define_color(GRAY,8);
}
};
} // end namespace CGAL
#endif
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