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author | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 14:39:34 +0300 |
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committer | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 16:42:24 +0300 |
commit | 77eb2d3fdcec5c978c64e025ced2764c57c00285 (patch) | |
tree | c51edb0748ca8d4a08d7c7323312c27ba1a8b79a /contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h | |
parent | dd6d20cadb65582270ac23f4b3b14ae189704b9d (diff) | |
download | ydb-77eb2d3fdcec5c978c64e025ced2764c57c00285.tar.gz |
KIKIMR-19287: add task_stats_drawing script
Diffstat (limited to 'contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h')
-rw-r--r-- | contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h | 693 |
1 files changed, 693 insertions, 0 deletions
diff --git a/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h b/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h new file mode 100644 index 0000000000..1ef02e8783 --- /dev/null +++ b/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_curves.h @@ -0,0 +1,693 @@ +//---------------------------------------------------------------------------- +// Anti-Grain Geometry - Version 2.4 +// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) +// Copyright (C) 2005 Tony Juricic (tonygeek@yahoo.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_CURVES_INCLUDED +#define AGG_CURVES_INCLUDED + +#include "agg_array.h" + +namespace agg +{ + + // See Implementation agg_curves.cpp + + //--------------------------------------------curve_approximation_method_e + enum curve_approximation_method_e + { + curve_inc, + curve_div + }; + + //--------------------------------------------------------------curve3_inc + class curve3_inc + { + public: + curve3_inc() : + m_num_steps(0), m_step(0), m_scale(1.0) { } + + curve3_inc(double x1, double y1, + double x2, double y2, + double x3, double y3) : + m_num_steps(0), m_step(0), m_scale(1.0) + { + init(x1, y1, x2, y2, x3, y3); + } + + void reset() { m_num_steps = 0; m_step = -1; } + void init(double x1, double y1, + double x2, double y2, + double x3, double y3); + + void approximation_method(curve_approximation_method_e) {} + curve_approximation_method_e approximation_method() const { return curve_inc; } + + void approximation_scale(double s); + double approximation_scale() const; + + void angle_tolerance(double) {} + double angle_tolerance() const { return 0.0; } + + void cusp_limit(double) {} + double cusp_limit() const { return 0.0; } + + void rewind(unsigned path_id); + unsigned vertex(double* x, double* y); + + private: + int m_num_steps; + int m_step; + double m_scale; + double m_start_x; + double m_start_y; + double m_end_x; + double m_end_y; + double m_fx; + double m_fy; + double m_dfx; + double m_dfy; + double m_ddfx; + double m_ddfy; + double m_saved_fx; + double m_saved_fy; + double m_saved_dfx; + double m_saved_dfy; + }; + + + + + + //-------------------------------------------------------------curve3_div + class curve3_div + { + public: + curve3_div() : + m_approximation_scale(1.0), + m_angle_tolerance(0.0), + m_count(0) + {} + + curve3_div(double x1, double y1, + double x2, double y2, + double x3, double y3) : + m_approximation_scale(1.0), + m_angle_tolerance(0.0), + m_count(0) + { + init(x1, y1, x2, y2, x3, y3); + } + + void reset() { m_points.remove_all(); m_count = 0; } + void init(double x1, double y1, + double x2, double y2, + double x3, double y3); + + void approximation_method(curve_approximation_method_e) {} + curve_approximation_method_e approximation_method() const { return curve_div; } + + void approximation_scale(double s) { m_approximation_scale = s; } + double approximation_scale() const { return m_approximation_scale; } + + void angle_tolerance(double a) { m_angle_tolerance = a; } + double angle_tolerance() const { return m_angle_tolerance; } + + void cusp_limit(double) {} + double cusp_limit() const { return 0.0; } + + void rewind(unsigned) + { + m_count = 0; + } + + unsigned vertex(double* x, double* y) + { + if(m_count >= m_points.size()) return path_cmd_stop; + const point_d& p = m_points[m_count++]; + *x = p.x; + *y = p.y; + return (m_count == 1) ? path_cmd_move_to : path_cmd_line_to; + } + + private: + void bezier(double x1, double y1, + double x2, double y2, + double x3, double y3); + void recursive_bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + unsigned level); + + double m_approximation_scale; + double m_distance_tolerance_square; + double m_angle_tolerance; + unsigned m_count; + pod_bvector<point_d> m_points; + }; + + + + + + + + //-------------------------------------------------------------curve4_points + struct curve4_points + { + double cp[8]; + curve4_points() {} + curve4_points(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + cp[0] = x1; cp[1] = y1; cp[2] = x2; cp[3] = y2; + cp[4] = x3; cp[5] = y3; cp[6] = x4; cp[7] = y4; + } + void init(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + cp[0] = x1; cp[1] = y1; cp[2] = x2; cp[3] = y2; + cp[4] = x3; cp[5] = y3; cp[6] = x4; cp[7] = y4; + } + double operator [] (unsigned i) const { return cp[i]; } + double& operator [] (unsigned i) { return cp[i]; } + }; + + + + //-------------------------------------------------------------curve4_inc + class curve4_inc + { + public: + curve4_inc() : + m_num_steps(0), m_step(0), m_scale(1.0) { } + + curve4_inc(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) : + m_num_steps(0), m_step(0), m_scale(1.0) + { + init(x1, y1, x2, y2, x3, y3, x4, y4); + } + + curve4_inc(const curve4_points& cp) : + m_num_steps(0), m_step(0), m_scale(1.0) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void reset() { m_num_steps = 0; m_step = -1; } + void init(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4); + + void init(const curve4_points& cp) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void approximation_method(curve_approximation_method_e) {} + curve_approximation_method_e approximation_method() const { return curve_inc; } + + void approximation_scale(double s); + double approximation_scale() const; + + void angle_tolerance(double) {} + double angle_tolerance() const { return 0.0; } + + void cusp_limit(double) {} + double cusp_limit() const { return 0.0; } + + void rewind(unsigned path_id); + unsigned vertex(double* x, double* y); + + private: + int m_num_steps; + int m_step; + double m_scale; + double m_start_x; + double m_start_y; + double m_end_x; + double m_end_y; + double m_fx; + double m_fy; + double m_dfx; + double m_dfy; + double m_ddfx; + double m_ddfy; + double m_dddfx; + double m_dddfy; + double m_saved_fx; + double m_saved_fy; + double m_saved_dfx; + double m_saved_dfy; + double m_saved_ddfx; + double m_saved_ddfy; + }; + + + + //-------------------------------------------------------catrom_to_bezier + inline curve4_points catrom_to_bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + // Trans. matrix Catmull-Rom to Bezier + // + // 0 1 0 0 + // -1/6 1 1/6 0 + // 0 1/6 1 -1/6 + // 0 0 1 0 + // + return curve4_points( + x2, + y2, + (-x1 + 6*x2 + x3) / 6, + (-y1 + 6*y2 + y3) / 6, + ( x2 + 6*x3 - x4) / 6, + ( y2 + 6*y3 - y4) / 6, + x3, + y3); + } + + + //----------------------------------------------------------------------- + inline curve4_points + catrom_to_bezier(const curve4_points& cp) + { + return catrom_to_bezier(cp[0], cp[1], cp[2], cp[3], + cp[4], cp[5], cp[6], cp[7]); + } + + + + //-----------------------------------------------------ubspline_to_bezier + inline curve4_points ubspline_to_bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + // Trans. matrix Uniform BSpline to Bezier + // + // 1/6 4/6 1/6 0 + // 0 4/6 2/6 0 + // 0 2/6 4/6 0 + // 0 1/6 4/6 1/6 + // + return curve4_points( + (x1 + 4*x2 + x3) / 6, + (y1 + 4*y2 + y3) / 6, + (4*x2 + 2*x3) / 6, + (4*y2 + 2*y3) / 6, + (2*x2 + 4*x3) / 6, + (2*y2 + 4*y3) / 6, + (x2 + 4*x3 + x4) / 6, + (y2 + 4*y3 + y4) / 6); + } + + + //----------------------------------------------------------------------- + inline curve4_points + ubspline_to_bezier(const curve4_points& cp) + { + return ubspline_to_bezier(cp[0], cp[1], cp[2], cp[3], + cp[4], cp[5], cp[6], cp[7]); + } + + + + + //------------------------------------------------------hermite_to_bezier + inline curve4_points hermite_to_bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + // Trans. matrix Hermite to Bezier + // + // 1 0 0 0 + // 1 0 1/3 0 + // 0 1 0 -1/3 + // 0 1 0 0 + // + return curve4_points( + x1, + y1, + (3*x1 + x3) / 3, + (3*y1 + y3) / 3, + (3*x2 - x4) / 3, + (3*y2 - y4) / 3, + x2, + y2); + } + + + + //----------------------------------------------------------------------- + inline curve4_points + hermite_to_bezier(const curve4_points& cp) + { + return hermite_to_bezier(cp[0], cp[1], cp[2], cp[3], + cp[4], cp[5], cp[6], cp[7]); + } + + + //-------------------------------------------------------------curve4_div + class curve4_div + { + public: + curve4_div() : + m_approximation_scale(1.0), + m_angle_tolerance(0.0), + m_cusp_limit(0.0), + m_count(0) + {} + + curve4_div(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) : + m_approximation_scale(1.0), + m_angle_tolerance(0.0), + m_cusp_limit(0.0), + m_count(0) + { + init(x1, y1, x2, y2, x3, y3, x4, y4); + } + + curve4_div(const curve4_points& cp) : + m_approximation_scale(1.0), + m_angle_tolerance(0.0), + m_count(0) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void reset() { m_points.remove_all(); m_count = 0; } + void init(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4); + + void init(const curve4_points& cp) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void approximation_method(curve_approximation_method_e) {} + + curve_approximation_method_e approximation_method() const + { + return curve_div; + } + + void approximation_scale(double s) { m_approximation_scale = s; } + double approximation_scale() const { return m_approximation_scale; } + + void angle_tolerance(double a) { m_angle_tolerance = a; } + double angle_tolerance() const { return m_angle_tolerance; } + + void cusp_limit(double v) + { + m_cusp_limit = (v == 0.0) ? 0.0 : pi - v; + } + + double cusp_limit() const + { + return (m_cusp_limit == 0.0) ? 0.0 : pi - m_cusp_limit; + } + + void rewind(unsigned) + { + m_count = 0; + } + + unsigned vertex(double* x, double* y) + { + if(m_count >= m_points.size()) return path_cmd_stop; + const point_d& p = m_points[m_count++]; + *x = p.x; + *y = p.y; + return (m_count == 1) ? path_cmd_move_to : path_cmd_line_to; + } + + private: + void bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4); + + void recursive_bezier(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4, + unsigned level); + + double m_approximation_scale; + double m_distance_tolerance_square; + double m_angle_tolerance; + double m_cusp_limit; + unsigned m_count; + pod_bvector<point_d> m_points; + }; + + + //-----------------------------------------------------------------curve3 + class curve3 + { + public: + curve3() : m_approximation_method(curve_div) {} + curve3(double x1, double y1, + double x2, double y2, + double x3, double y3) : + m_approximation_method(curve_div) + { + init(x1, y1, x2, y2, x3, y3); + } + + void reset() + { + m_curve_inc.reset(); + m_curve_div.reset(); + } + + void init(double x1, double y1, + double x2, double y2, + double x3, double y3) + { + if(m_approximation_method == curve_inc) + { + m_curve_inc.init(x1, y1, x2, y2, x3, y3); + } + else + { + m_curve_div.init(x1, y1, x2, y2, x3, y3); + } + } + + void approximation_method(curve_approximation_method_e v) + { + m_approximation_method = v; + } + + curve_approximation_method_e approximation_method() const + { + return m_approximation_method; + } + + void approximation_scale(double s) + { + m_curve_inc.approximation_scale(s); + m_curve_div.approximation_scale(s); + } + + double approximation_scale() const + { + return m_curve_inc.approximation_scale(); + } + + void angle_tolerance(double a) + { + m_curve_div.angle_tolerance(a); + } + + double angle_tolerance() const + { + return m_curve_div.angle_tolerance(); + } + + void cusp_limit(double v) + { + m_curve_div.cusp_limit(v); + } + + double cusp_limit() const + { + return m_curve_div.cusp_limit(); + } + + void rewind(unsigned path_id) + { + if(m_approximation_method == curve_inc) + { + m_curve_inc.rewind(path_id); + } + else + { + m_curve_div.rewind(path_id); + } + } + + unsigned vertex(double* x, double* y) + { + if(m_approximation_method == curve_inc) + { + return m_curve_inc.vertex(x, y); + } + return m_curve_div.vertex(x, y); + } + + private: + curve3_inc m_curve_inc; + curve3_div m_curve_div; + curve_approximation_method_e m_approximation_method; + }; + + + + + + //-----------------------------------------------------------------curve4 + class curve4 + { + public: + curve4() : m_approximation_method(curve_div) {} + curve4(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) : + m_approximation_method(curve_div) + { + init(x1, y1, x2, y2, x3, y3, x4, y4); + } + + curve4(const curve4_points& cp) : + m_approximation_method(curve_div) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void reset() + { + m_curve_inc.reset(); + m_curve_div.reset(); + } + + void init(double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) + { + if(m_approximation_method == curve_inc) + { + m_curve_inc.init(x1, y1, x2, y2, x3, y3, x4, y4); + } + else + { + m_curve_div.init(x1, y1, x2, y2, x3, y3, x4, y4); + } + } + + void init(const curve4_points& cp) + { + init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); + } + + void approximation_method(curve_approximation_method_e v) + { + m_approximation_method = v; + } + + curve_approximation_method_e approximation_method() const + { + return m_approximation_method; + } + + void approximation_scale(double s) + { + m_curve_inc.approximation_scale(s); + m_curve_div.approximation_scale(s); + } + double approximation_scale() const { return m_curve_inc.approximation_scale(); } + + void angle_tolerance(double v) + { + m_curve_div.angle_tolerance(v); + } + + double angle_tolerance() const + { + return m_curve_div.angle_tolerance(); + } + + void cusp_limit(double v) + { + m_curve_div.cusp_limit(v); + } + + double cusp_limit() const + { + return m_curve_div.cusp_limit(); + } + + void rewind(unsigned path_id) + { + if(m_approximation_method == curve_inc) + { + m_curve_inc.rewind(path_id); + } + else + { + m_curve_div.rewind(path_id); + } + } + + unsigned vertex(double* x, double* y) + { + if(m_approximation_method == curve_inc) + { + return m_curve_inc.vertex(x, y); + } + return m_curve_div.vertex(x, y); + } + + private: + curve4_inc m_curve_inc; + curve4_div m_curve_div; + curve_approximation_method_e m_approximation_method; + }; + + + + +} + +#endif |