文字
ps_lineto
(PECL ps >= 1.1.0)
ps_lineto — Draws a line
说明
bool ps_lineto
( resource
$psdoc
, float $x
, float $y
)Adds a straight line from the current point to the given coordinates to the current path. Use ps_moveto() to set the starting point of the line.
参数
-
psdoc -
Resource identifier of the postscript file as returned by ps_new() .
-
x -
x-coordinate of the end point of the line.
-
y -
y-coordinate of the end point of the line.
返回值
成功时返回 TRUE ， 或者在失败时返回 FALSE 。
范例
Example #1 Drawing a rectangle
<?php
$ps = ps_new ();
if (! ps_open_file ( $ps , "rectangle.ps" )) {
print "Cannot open PostScript file\n" ;
exit;
}
ps_set_info ( $ps , "Creator" , "rectangle.php" );
ps_set_info ( $ps , "Author" , "Uwe Steinmann" );
ps_set_info ( $ps , "Title" , "Lineto example" );
ps_begin_page ( $ps , 596 , 842 );
ps_moveto ( $ps , 100 , 100 );
ps_lineto ( $ps , 100 , 200 );
ps_lineto ( $ps , 200 , 200 );
ps_lineto ( $ps , 200 , 100 );
ps_lineto ( $ps , 100 , 100 );
ps_stroke ( $ps );
ps_end_page ( $ps );
ps_delete ( $ps );
?> 参见
- ps_moveto() - Sets current point