From 9731d8a4bb7ee2cc8554eaf133bb85498a4c7d80 Mon Sep 17 00:00:00 2001
From: maxim-yurchuk <maxim-yurchuk@yandex-team.com>
Date: Wed, 9 Oct 2024 12:29:46 +0300
Subject: publishFullContrib: true for ydb
<HIDDEN_URL>
commit_hash:c82a80ac4594723cebf2c7387dec9c60217f603e
---
.../py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp | 194 +++++++++++++++++++++
1 file changed, 194 insertions(+)
create mode 100644 contrib/python/matplotlib/py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp
(limited to 'contrib/python/matplotlib/py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp')
diff --git a/contrib/python/matplotlib/py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp b/contrib/python/matplotlib/py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp
new file mode 100644
index 0000000000..4a0be6693e
--- /dev/null
+++ b/contrib/python/matplotlib/py3/extern/agg24-svn/src/agg_vcgen_bspline.cpp
@@ -0,0 +1,194 @@
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.4
+// 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_d(x, y));
+ }
+ else
+ {
+ if(is_vertex(cmd))
+ {
+ m_src_vertices.add(point_d(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;
+ }
+
+
+}
+
--
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