(PECL ps >= 1.1.0)
ps_setpolydash — Sets appearance of a dashed line
$psdoc
, float $arr
)Sets the length of the black and white portions of a dashed line. ps_setpolydash() is used to set more complicated dash patterns.
psdocResource identifier of the postscript file as returned by ps_new().
arr
arr is a list of length elements alternately for
the black and white portion.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 Drawing a dashed line
<?php
$ps = ps_new();
if (!ps_open_file($ps, "polydash.ps")) {
print "Cannot open PostScript file\n";
exit;
}
ps_set_info($ps, "Creator", "polydash.php");
ps_set_info($ps, "Author", "Uwe Steinmann");
ps_set_info($ps, "Title", "Poly dash example");
ps_begin_page($ps, 596, 842);
ps_setpolydash($ps, array(10, 5, 2, 5));
ps_moveto($ps, 100, 100);
ps_lineto($ps, 200, 200);
ps_stroke($ps);
ps_end_page($ps);
ps_delete($ps);
?>
This example draws a line with a 10 and 2 points long line, and gaps of 5 points inbetween.