ImagickDraw::pathStart

(PECL imagick 2.0.0)

ImagickDraw::pathStart — Declares the start of a path drawing list

说明

bool ImagickDraw::pathStart ( void )

Warning

本函数还未编写文档，仅有参数列表。

Declares the start of a path drawing list which is terminated by a matching DrawPathFinish() command. All other DrawPath commands must be enclosed between a and a DrawPathFinish() command. This is because path drawing commands are subordinate commands and they do not function by themselves.

返回值

没有返回值。

范例

Example #1 ImagickDraw::pathStart()

  <?php
 function  pathStart ( $strokeColor ,  $fillColor ,  $backgroundColor ) {

     $draw  = new \ ImagickDraw ();

     $draw -> setStrokeOpacity ( 1 );
     $draw -> setStrokeColor ( $strokeColor );
     $draw -> setFillColor ( $fillColor );

     $draw -> setStrokeWidth ( 2 );
     $draw -> setFontSize ( 72 );

     $draw -> pathStart ();
     $draw -> pathMoveToAbsolute ( 50 ,  50 );
     $draw -> pathLineToAbsolute ( 100 ,  50 );
     $draw -> pathLineToRelative ( 0 ,  50 );
     $draw -> pathLineToHorizontalRelative (- 50 );
     $draw -> pathFinish ();

     $draw -> pathStart ();
     $draw -> pathMoveToAbsolute ( 50 ,  50 );
     $draw -> pathMoveToRelative ( 300 ,  0 );
     $draw -> pathLineToRelative ( 50 ,  0 );
     $draw -> pathLineToVerticalRelative ( 50 );
     $draw -> pathLineToHorizontalAbsolute ( 350 );
     $draw -> pathclose ();
     $draw -> pathFinish ();

     $draw -> pathStart ();
     $draw -> pathMoveToAbsolute ( 50 ,  300 );
     $draw -> pathCurveToAbsolute ( 50 ,  300 ,  100 ,  200 ,  300 ,  300 );
     $draw -> pathLineToVerticalAbsolute ( 350 );
     $draw -> pathFinish ();

     $imagick  = new \ Imagick ();
     $imagick -> newImage ( 500 ,  500 ,  $backgroundColor );
     $imagick -> setImageFormat ( "png" );

     $imagick -> drawImage ( $draw );

     header ( "Content-Type: image/png" );
    echo  $imagick -> getImageBlob ();
}

 ?>