ImagickPixel::setColorValueQuantum

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ImagickPixel::setColorValueQuantum — Description

说明

public void ImagickPixel::setColorValueQuantum ( int $color , mixed $value )

Sets the quantum value of a color element of the ImagickPixel.

Warning

本函数还未编写文档，仅有参数列表。

参数

color: Which color element to set e.g. \Imagick::COLOR_GREEN.
value: The quantum value to set the color element to. This should be a float if ImageMagick was compiled with HDRI otherwise an int in the range 0 to Imagick::getQuantum().

返回值

范例

Example #1 ImagickPixel::setColorValueQuantum()

  <?php
 function  setColorValueQuantum () {
     $image  = new \ Imagick ();

     $quantumRange  =  $image -> getQuantumRange ();

     $draw  = new \ ImagickDraw ();
     $color  = new \ ImagickPixel ( 'blue' );
     $color -> setcolorValueQuantum (\ Imagick :: COLOR_RED ,  128  *  $quantumRange [ 'quantumRangeLong' ] /  256 );

     $draw -> setstrokewidth ( 1.0 );
     $draw -> setStrokeColor ( $color );
     $draw -> setFillColor ( $color );
     $draw -> rectangle ( 200 ,  200 ,  300 ,  300 );

     $image -> newImage ( 500 ,  500 ,  "SteelBlue2" );
     $image -> setImageFormat ( "png" );

     $image -> drawImage ( $draw );

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

 ?>