diff options
Diffstat (limited to 'agg/inc/agg_bezier_arc.h')
| -rwxr-xr-x | agg/inc/agg_bezier_arc.h | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/agg/inc/agg_bezier_arc.h b/agg/inc/agg_bezier_arc.h index f437ab0a00bd..fef6095584ca 100755 --- a/agg/inc/agg_bezier_arc.h +++ b/agg/inc/agg_bezier_arc.h @@ -2,8 +2,8 @@ // 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. +// 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. // @@ -13,7 +13,7 @@ // http://www.antigrain.com //---------------------------------------------------------------------------- // -// Arc generator. Produces at most 4 consecutive cubic bezier curves, i.e., +// Arc generator. Produces at most 4 consecutive cubic bezier curves, i.e., // 4, 7, 10, or 13 vertices. // //---------------------------------------------------------------------------- @@ -27,13 +27,13 @@ namespace agg { //----------------------------------------------------------------------- - void arc_to_bezier(double cx, double cy, double rx, double ry, + void arc_to_bezier(double cx, double cy, double rx, double ry, double start_angle, double sweep_angle, double* curve); //==============================================================bezier_arc - // + // // See implemantaion agg_bezier_arc.cpp // class bezier_arc @@ -41,18 +41,18 @@ namespace agg public: //-------------------------------------------------------------------- bezier_arc() : m_vertex(26) {} - bezier_arc(double x, double y, - double rx, double ry, - double start_angle, + bezier_arc(double x, double y, + double rx, double ry, + double start_angle, double sweep_angle) { init(x, y, rx, ry, start_angle, sweep_angle); } //-------------------------------------------------------------------- - void init(double x, double y, - double rx, double ry, - double start_angle, + void init(double x, double y, + double rx, double ry, + double start_angle, double sweep_angle); //-------------------------------------------------------------------- @@ -71,13 +71,13 @@ namespace agg return (m_vertex == 2) ? path_cmd_move_to : path_cmd_curve4; } - // Supplemantary functions. num_vertices() actually returns doubled + // Supplemantary functions. num_vertices() actually returns doubled // number of vertices. That is, for 1 vertex it returns 2. //-------------------------------------------------------------------- unsigned num_vertices() const { return m_num_vertices; } const double* vertices() const { return m_vertices; } double* vertices() { return m_vertices; } - + private: unsigned m_vertex; unsigned m_num_vertices; @@ -87,15 +87,15 @@ namespace agg //==========================================================bezier_arc_svg - // Compute an SVG-style bezier arc. + // Compute an SVG-style bezier arc. // - // Computes an elliptical arc from (x1, y1) to (x2, y2). The size and - // orientation of the ellipse are defined by two radii (rx, ry) - // and an x-axis-rotation, which indicates how the ellipse as a whole - // is rotated relative to the current coordinate system. The center - // (cx, cy) of the ellipse is calculated automatically to satisfy the - // constraints imposed by the other parameters. - // large-arc-flag and sweep-flag contribute to the automatic calculations + // Computes an elliptical arc from (x1, y1) to (x2, y2). The size and + // orientation of the ellipse are defined by two radii (rx, ry) + // and an x-axis-rotation, which indicates how the ellipse as a whole + // is rotated relative to the current coordinate system. The center + // (cx, cy) of the ellipse is calculated automatically to satisfy the + // constraints imposed by the other parameters. + // large-arc-flag and sweep-flag contribute to the automatic calculations // and help determine how the arc is drawn. class bezier_arc_svg { @@ -103,20 +103,20 @@ namespace agg //-------------------------------------------------------------------- bezier_arc_svg() : m_arc(), m_radii_ok(false) {} - bezier_arc_svg(double x1, double y1, - double rx, double ry, + bezier_arc_svg(double x1, double y1, + double rx, double ry, double angle, bool large_arc_flag, bool sweep_flag, - double x2, double y2) : + double x2, double y2) : m_arc(), m_radii_ok(false) { init(x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2); } //-------------------------------------------------------------------- - void init(double x1, double y1, - double rx, double ry, + void init(double x1, double y1, + double rx, double ry, double angle, bool large_arc_flag, bool sweep_flag, @@ -137,7 +137,7 @@ namespace agg return m_arc.vertex(x, y); } - // Supplemantary functions. num_vertices() actually returns doubled + // Supplemantary functions. num_vertices() actually returns doubled // number of vertices. That is, for 1 vertex it returns 2. //-------------------------------------------------------------------- unsigned num_vertices() const { return m_arc.num_vertices(); } |