97 lines
2.9 KiB
C++
97 lines
2.9 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_SINGLE_PATH_INCLUDED
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#define AGG_TRANS_SINGLE_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_single_path.cpp
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//
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//-------------------------------------------------------trans_single_path
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class trans_single_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_single_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 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_to(double x, double y);
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void line_to(double x, double y);
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void finalize_path();
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//--------------------------------------------------------------------
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template<class VertexSource>
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void add_path(VertexSource& vs, unsigned path_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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vs.rewind(path_id);
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while(!is_stop(cmd = vs.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_to(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_to(x, y);
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}
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}
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}
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finalize_path();
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}
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//--------------------------------------------------------------------
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double total_length() const;
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void transform(double *x, double *y) const;
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private:
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vertex_storage m_src_vertices;
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double m_base_length;
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double m_kindex;
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status_e m_status;
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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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