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agg_trans_double_path.h
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agg_trans_double_path.h
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//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.3
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
#ifndef AGG_TRANS_DOUBLE_PATH_INCLUDED
#define AGG_TRANS_DOUBLE_PATH_INCLUDED
#include "agg_basics.h"
#include "agg_vertex_sequence.h"
namespace agg
{
// See also: agg_trans_double_path.cpp
//
//-------------------------------------------------------trans_double_path
class trans_double_path
{
enum status_e
{
initial,
making_path,
ready
};
public:
typedef vertex_sequence<vertex_dist, 6> vertex_storage;
trans_double_path();
//--------------------------------------------------------------------
void base_length(double v) { m_base_length = v; }
double base_length() const { return m_base_length; }
//--------------------------------------------------------------------
void base_height(double v) { m_base_height = v; }
double base_height() const { return m_base_height; }
//--------------------------------------------------------------------
void preserve_x_scale(bool f) { m_preserve_x_scale = f; }
bool preserve_x_scale() const { return m_preserve_x_scale; }
//--------------------------------------------------------------------
void reset();
void move_to1(double x, double y);
void line_to1(double x, double y);
void move_to2(double x, double y);
void line_to2(double x, double y);
void finalize_paths();
//--------------------------------------------------------------------
template<class VertexSource1, class VertexSource2>
void add_paths(VertexSource1& vs1, VertexSource2& vs2,
unsigned path1_id=0, unsigned path2_id=0)
{
double x;
double y;
unsigned cmd;
vs1.rewind(path1_id);
while(!is_stop(cmd = vs1.vertex(&x, &y)))
{
if(is_move_to(cmd))
{
move_to1(x, y);
}
else
{
if(is_vertex(cmd))
{
line_to1(x, y);
}
}
}
vs2.rewind(path2_id);
while(!is_stop(cmd = vs2.vertex(&x, &y)))
{
if(is_move_to(cmd))
{
move_to2(x, y);
}
else
{
if(is_vertex(cmd))
{
line_to2(x, y);
}
}
}
finalize_paths();
}
//--------------------------------------------------------------------
double total_length1() const;
double total_length2() const;
void transform(double *x, double *y) const;
private:
double finalize_path(vertex_storage& vertices);
void transform1(const vertex_storage& vertices,
double kindex, double kx,
double *x, double* y) const;
vertex_storage m_src_vertices1;
vertex_storage m_src_vertices2;
double m_base_length;
double m_base_height;
double m_kindex1;
double m_kindex2;
status_e m_status1;
status_e m_status2;
bool m_preserve_x_scale;
};
}
#endif