1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* The internal point-drawing function, which point() is a wrapper around.
It draws a point at the current location. There is no standard
definition of `point', so any Plotter is free to implement this as it
sees fit. */
#include "sys-defines.h"
#include "extern.h"
static const double _identity_matrix[6] = { 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 };
/* forward references */
static void _write_svg_point_style ____P((plOutbuf *page, const plDrawState *drawstate));
void
#ifdef _HAVE_PROTOS
_s_paint_point (S___(Plotter *_plotter))
#else
_s_paint_point (S___(_plotter))
S___(Plotter *_plotter;)
#endif
{
sprintf (_plotter->data->page->point, "<circle ");
_update_buffer (_plotter->data->page);
_s_set_matrix (R___(_plotter)
_plotter->drawstate->transform.m_user_to_ndc,
_identity_matrix);
sprintf (_plotter->data->page->point,
"cx=\"%.5g\" cy=\"%.5g\" r=\"%s\" ",
_plotter->drawstate->pos.x,
_plotter->drawstate->pos.y,
"0.5px"); /* diameter = 1 pixel */
_update_buffer (_plotter->data->page);
_write_svg_point_style (_plotter->data->page, _plotter->drawstate);
sprintf (_plotter->data->page->point,
"/>\n");
_update_buffer (_plotter->data->page);
return;
}
static void
#ifdef _HAVE_PROTOS
_write_svg_point_style (plOutbuf *page, const plDrawState *drawstate)
#else
_write_svg_point_style (page, drawstate)
plOutbuf *page;
const plDrawState *drawstate;
#endif
{
char color_buf[8]; /* enough room for "#ffffff", incl. NUL */
sprintf (page->point, "style=\"");
_update_buffer (page);
sprintf (page->point, "stroke:none;");
_update_buffer (page);
sprintf (page->point, "fill:%s;",
_libplot_color_to_svg_color (drawstate->fgcolor, color_buf));
_update_buffer (page);
sprintf (page->point, "\"");
_update_buffer (page);
}
|
