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Diffstat (limited to 'agg/source/agg_vcgen_bspline.cpp')
| -rwxr-xr-x | agg/source/agg_vcgen_bspline.cpp | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/agg/source/agg_vcgen_bspline.cpp b/agg/source/agg_vcgen_bspline.cpp deleted file mode 100755 index 9ca4df9b44f4..000000000000 --- a/agg/source/agg_vcgen_bspline.cpp +++ /dev/null @@ -1,194 +0,0 @@ -//---------------------------------------------------------------------------- -// 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 -//---------------------------------------------------------------------------- - -#include "agg_vcgen_bspline.h" - -namespace agg -{ - - //------------------------------------------------------------------------ - vcgen_bspline::vcgen_bspline() : - m_src_vertices(), - m_spline_x(), - m_spline_y(), - m_interpolation_step(1.0/50.0), - m_closed(0), - m_status(initial), - m_src_vertex(0) - { - } - - - //------------------------------------------------------------------------ - void vcgen_bspline::remove_all() - { - m_src_vertices.remove_all(); - m_closed = 0; - m_status = initial; - m_src_vertex = 0; - } - - - //------------------------------------------------------------------------ - void vcgen_bspline::add_vertex(double x, double y, unsigned cmd) - { - m_status = initial; - if(is_move_to(cmd)) - { - m_src_vertices.modify_last(point_type(x, y)); - } - else - { - if(is_vertex(cmd)) - { - m_src_vertices.add(point_type(x, y)); - } - else - { - m_closed = get_close_flag(cmd); - } - } - } - - - //------------------------------------------------------------------------ - void vcgen_bspline::rewind(unsigned) - { - m_cur_abscissa = 0.0; - m_max_abscissa = 0.0; - m_src_vertex = 0; - if(m_status == initial && m_src_vertices.size() > 2) - { - if(m_closed) - { - m_spline_x.init(m_src_vertices.size() + 8); - m_spline_y.init(m_src_vertices.size() + 8); - m_spline_x.add_point(0.0, m_src_vertices.prev(m_src_vertices.size() - 3).x); - m_spline_y.add_point(0.0, m_src_vertices.prev(m_src_vertices.size() - 3).y); - m_spline_x.add_point(1.0, m_src_vertices[m_src_vertices.size() - 3].x); - m_spline_y.add_point(1.0, m_src_vertices[m_src_vertices.size() - 3].y); - m_spline_x.add_point(2.0, m_src_vertices[m_src_vertices.size() - 2].x); - m_spline_y.add_point(2.0, m_src_vertices[m_src_vertices.size() - 2].y); - m_spline_x.add_point(3.0, m_src_vertices[m_src_vertices.size() - 1].x); - m_spline_y.add_point(3.0, m_src_vertices[m_src_vertices.size() - 1].y); - } - else - { - m_spline_x.init(m_src_vertices.size()); - m_spline_y.init(m_src_vertices.size()); - } - unsigned i; - for(i = 0; i < m_src_vertices.size(); i++) - { - double x = m_closed ? i + 4 : i; - m_spline_x.add_point(x, m_src_vertices[i].x); - m_spline_y.add_point(x, m_src_vertices[i].y); - } - m_cur_abscissa = 0.0; - m_max_abscissa = m_src_vertices.size() - 1; - if(m_closed) - { - m_cur_abscissa = 4.0; - m_max_abscissa += 5.0; - m_spline_x.add_point(m_src_vertices.size() + 4, m_src_vertices[0].x); - m_spline_y.add_point(m_src_vertices.size() + 4, m_src_vertices[0].y); - m_spline_x.add_point(m_src_vertices.size() + 5, m_src_vertices[1].x); - m_spline_y.add_point(m_src_vertices.size() + 5, m_src_vertices[1].y); - m_spline_x.add_point(m_src_vertices.size() + 6, m_src_vertices[2].x); - m_spline_y.add_point(m_src_vertices.size() + 6, m_src_vertices[2].y); - m_spline_x.add_point(m_src_vertices.size() + 7, m_src_vertices.next(2).x); - m_spline_y.add_point(m_src_vertices.size() + 7, m_src_vertices.next(2).y); - } - m_spline_x.prepare(); - m_spline_y.prepare(); - m_status = ready; - } - } - - - - - - - //------------------------------------------------------------------------ - unsigned vcgen_bspline::vertex(double* x, double* y) - { - unsigned cmd = path_cmd_line_to; - while(!is_stop(cmd)) - { - switch(m_status) - { - case initial: - rewind(0); - - case ready: - if(m_src_vertices.size() < 2) - { - cmd = path_cmd_stop; - break; - } - - if(m_src_vertices.size() == 2) - { - *x = m_src_vertices[m_src_vertex].x; - *y = m_src_vertices[m_src_vertex].y; - m_src_vertex++; - if(m_src_vertex == 1) return path_cmd_move_to; - if(m_src_vertex == 2) return path_cmd_line_to; - cmd = path_cmd_stop; - break; - } - - cmd = path_cmd_move_to; - m_status = polygon; - m_src_vertex = 0; - - case polygon: - if(m_cur_abscissa >= m_max_abscissa) - { - if(m_closed) - { - m_status = end_poly; - break; - } - else - { - *x = m_src_vertices[m_src_vertices.size() - 1].x; - *y = m_src_vertices[m_src_vertices.size() - 1].y; - m_status = end_poly; - return path_cmd_line_to; - } - } - - *x = m_spline_x.get_stateful(m_cur_abscissa); - *y = m_spline_y.get_stateful(m_cur_abscissa); - m_src_vertex++; - m_cur_abscissa += m_interpolation_step; - return (m_src_vertex == 1) ? path_cmd_move_to : path_cmd_line_to; - - case end_poly: - m_status = stop; - return path_cmd_end_poly | m_closed; - - case stop: - return path_cmd_stop; - } - } - return cmd; - } - - -} - |