#ifndef DRAW_SVG_H
#define DRAW_SVG_H
#include "agg_basics.h"
#include "agg_color_rgba.h"
#include "list.h"
#include "strpp.h"
enum svg_path_property_e {
 stroke_dasharray = 0,
 marker_start,
 marker_mid,
 marker_end,
};
extern const char *svg_path_property_name[];
struct svg_property_item {
 enum svg_path_property_e key;
 const char* value;
 svg_property_item(enum svg_path_property_e k, const char *v) : key(k), value(v) { }
};
static inline double svg_y_coord(double y, double h) {
 return h - y;
}
template <class VertexSource>
static inline unsigned
vertex_flip(VertexSource* vs, double* x, double* y, double h)
{
 unsigned cmd = vs->vertex(x, y);
 *y = svg_y_coord(*y, h);
 return cmd;
}
typedef list<svg_property_item> svg_property_list;
template <typename VertexSource>
void svg_coords_from_vs(VertexSource* vs, str& s, double h)
{
 unsigned cmd;
 double x, y;
 const char * const space = " ";
 const char *sep = "";
 vs->rewind(0);
 while ((cmd = vertex_flip(vs, &x, &y, h)))
 {
 if (agg::is_move_to(cmd)) {
 s.printf_add("%sM %g,%g", sep, x, y);
 } else if (agg::is_line_to(cmd)) {
 s.printf_add("%s%g,%g", sep, x, y);
 } else if (agg::is_close(cmd)) {
 s.printf_add("%sz", sep);
 } else if (agg::is_curve3(cmd)) {
 vertex_flip(vs, &x, &y, h);
 s.printf_add("%s%g,%g", sep, x, y);
 } else if (agg::is_curve4(cmd)) {
 vs->vertex(&x, &y);
 vertex_flip(vs, &x, &y, h);
 s.printf_add("%s%g,%g", sep, x, y);
 }
 sep = space;
 }
}
template <typename VertexSource>
void svg_curve_coords_from_vs(VertexSource* vs, str& s, double h)
{
 unsigned cmd;
 double x, y;
 const char * const space = " ";
 const char *sep = "";
 bool omit_line_to = false;
 vs->rewind(0);
 while ((cmd = vertex_flip(vs, &x, &y, h)))
 {
 if (agg::is_move_to(cmd)) {
 s.printf_add("%sM %g,%g", sep, x, y);
 omit_line_to = true;
 } else if (agg::is_line_to(cmd)) {
 s.printf_add("%s%s%g,%g", sep, omit_line_to ? "" : "L ", x, y);
 } else if (agg::is_curve4(cmd)) {
 double x1 = x, y1 = y;
 double x2, y2;
 vertex_flip(vs, &x2, &y2, h);
 vertex_flip(vs, &x, &y, h);
 s.printf_add("%sC %g,%g %g,%g %g,%g", sep, x1, y1, x2, y2, x, y);
 omit_line_to = false;
 } else if (agg::is_curve3(cmd)) {
 double x1 = x, y1 = y;
 vertex_flip(vs, &x, &y, h);
 s.printf_add("%sQ %g,%g %g,%g", sep, x1, y1, x, y);
 omit_line_to = false;
 } else if (agg::is_close(cmd)) {
 s.printf_add("%sz", sep);
 }
 sep = space;
 }
}
extern str svg_stroke_path(str& path_coords, double width, int id, agg::rgba8 c, svg_property_list* properties = 0);
extern str svg_fill_path(str& path_coords, int id, agg::rgba8 c, svg_property_list* properties = 0);
extern str svg_marker_path(str& path_coords, double sw, int id, svg_property_list* properties);
extern void format_rgb(char rgbstr[], agg::rgba8 c);
#endif
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://cgit.git.savannah.gnu.org/cgit/gsl-shell.git/plain/agg-plot/draw_svg.h">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://cgit.git.savannah.gnu.org/cgit/gsl-shell.git/plain/agg-plot/draw_svg.h" size="22" /></label> <label>モード: <select name="naked_post_mode">
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