ps_translate
Почист и полокален преглед на PHP референцата, со задржана структура од PHP.net и подобра читливост за примери, секции и белешки.
ps_translate
Референца за `function.ps-translate.php` со подобрена типографија и навигација.
ps_translate
(PECL ps >= 1.1.0)
ps_translate — Sets translation
= NULL
Sets a new initial point of the coordinate system.
Параметри
psdoc-
и користење на шемата како боја за пополнување. ps_new().
x-
x-coordinate of the origin of the translated coordinate system.
y-
y-coordinate of the origin of the translated coordinate system.
Вратени вредности
Патеката до PHP скриптата што треба да се провери. true на успех или false при неуспех.
Примери
Example #1 Translation of the coordinate system
<?php
function rectangle($ps) {
ps_moveto($ps, 0, 0);
ps_lineto($ps, 0, 50);
ps_lineto($ps, 50, 50);
ps_lineto($ps, 50, 0);
ps_lineto($ps, 0, 0);
ps_stroke($ps);
}
$ps = ps_new();
if (!ps_open_file($ps, "translate.ps")) {
print "Cannot open PostScript file\n";
exit;
}
ps_set_info($ps, "Creator", "translate.php");
ps_set_info($ps, "Author", "Uwe Steinmann");
ps_set_info($ps, "Title", "Translated example");
ps_set_info($ps, "BoundingBox", "0 0 596 842");
$psfont = ps_findfont($ps, "Helvetica", "", 0);
ps_begin_page($ps, 596, 842);
ps_set_text_pos($ps, 100, 100);
ps_translate($ps, 500, 750);
rectangle($ps);
ps_translate($ps, -500, -750);
ps_setfont($ps, $psfont, 8.0);
ps_show($ps, "Text at initial position");
ps_end_page($ps);
ps_begin_page($ps, 596, 842);
ps_set_text_pos($ps, 100, 100);
ps_save($ps);
ps_translate($ps, 500, 750);
rectangle($ps);
ps_restore($ps);
ps_setfont($ps, $psfont, 8.0);
ps_show($ps, "Text at initial position");
ps_end_page($ps);
ps_delete($ps);
?>The above example demonstrates two possible ways to place a graphic (in this case just a rectangle) at any position on the page, while the graphic itself uses its own coordinate system. The trick is to change the origin of the current coordinate system before drawing the rectangle. The translation has to be undone after the graphic has been drawn.
On the second page a slightly different and more elegant approach is applied. Instead of undoing the translation with a second call of ps_translate() the graphics context is saved before modifying the coordinate system and restored after drawing the rectangle.
Види Исто така
- ps_scale() - Поставува фактор на скалирање
- ps_rotate() - Поставува фактор на ротација