132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.4
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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#ifndef AGG_TRANS_DOUBLE_PATH_INCLUDED
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#define AGG_TRANS_DOUBLE_PATH_INCLUDED
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#include "agg_basics.h"
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#include "agg_vertex_sequence.h"
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namespace agg
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{
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// See also: agg_trans_double_path.cpp
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//
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//-------------------------------------------------------trans_double_path
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class trans_double_path
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{
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enum status_e
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{
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initial,
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making_path,
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ready
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};
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public:
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typedef vertex_sequence<vertex_dist, 6> vertex_storage;
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trans_double_path();
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//--------------------------------------------------------------------
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void base_length(double v) { m_base_length = v; }
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double base_length() const { return m_base_length; }
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//--------------------------------------------------------------------
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void base_height(double v) { m_base_height = v; }
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double base_height() const { return m_base_height; }
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//--------------------------------------------------------------------
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void preserve_x_scale(bool f) { m_preserve_x_scale = f; }
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bool preserve_x_scale() const { return m_preserve_x_scale; }
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//--------------------------------------------------------------------
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void reset();
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void move_to1(double x, double y);
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void line_to1(double x, double y);
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void move_to2(double x, double y);
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void line_to2(double x, double y);
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void finalize_paths();
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//--------------------------------------------------------------------
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template<class VertexSource1, class VertexSource2>
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void add_paths(VertexSource1& vs1, VertexSource2& vs2,
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unsigned path1_id=0, unsigned path2_id=0)
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{
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double x;
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double y;
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unsigned cmd;
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vs1.rewind(path1_id);
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while(!is_stop(cmd = vs1.vertex(&x, &y)))
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{
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if(is_move_to(cmd))
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{
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move_to1(x, y);
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}
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else
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{
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if(is_vertex(cmd))
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{
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line_to1(x, y);
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}
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}
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}
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vs2.rewind(path2_id);
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while(!is_stop(cmd = vs2.vertex(&x, &y)))
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{
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if(is_move_to(cmd))
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{
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move_to2(x, y);
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}
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else
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{
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if(is_vertex(cmd))
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{
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line_to2(x, y);
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}
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}
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}
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finalize_paths();
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}
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//--------------------------------------------------------------------
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double total_length1() const;
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double total_length2() const;
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void transform(double *x, double *y) const;
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private:
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double finalize_path(vertex_storage& vertices);
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void transform1(const vertex_storage& vertices,
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double kindex, double kx,
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double *x, double* y) const;
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vertex_storage m_src_vertices1;
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vertex_storage m_src_vertices2;
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double m_base_length;
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double m_base_height;
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double m_kindex1;
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double m_kindex2;
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status_e m_status1;
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status_e m_status2;
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bool m_preserve_x_scale;
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};
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}
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#endif
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