ps_setpolydash

(PECL ps >= 1.1.0)

ps_setpolydash — Sets appearance of a dashed line

说明

bool ps_setpolydash ( resource $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.

参数

psdoc: Resource 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.

返回值

成功时返回 TRUE ，或者在失败时返回 FALSE 。

范例

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.

参见

ps_setdash() - Sets appearance of a dashed line