PHP | GmagickDraw setfillopacity() Function

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The GmagickDraw ::setfillopacity() function is an inbuilt function in PHP which is used to set the opacity of a drawing image. It is used when drawing the image using the filled color or filled texture. Syntax:

public GmagickDraw::setfillopacity( $fill_opacity ) : GmagickDraw

Parameters: This function accepts single parameter $fill_opacity which is used to hold the value of the opacity as float type. Return Value: This function returns the GmagickDraw object on success. Below programs illustrates the GmagickDraw::setfillopacity() function in PHP: Program 1:

php

<?php
 
// require_once('vendor/autoload.php');
  
// Create GmagickDraw object
$draw = new \GmagickDraw ();
 
// Set the stroke color
$draw->setStrokeColor('Green');
  
// Use setFillColor() Function
$draw->setFillColor('Red');
  
// Use setFillOpacity() Function 
$draw->setFillOpacity(0.2);
  
$draw->setStrokeWidth(7);
  
// Create rectangle
$draw->rectangle(40, 30, 200, 260);
  
// Use setFillColor() Function
$draw->setFillColor('Red');
 
// Create rectangle of given size
$draw->rectangle(260, 30, 400, 260);
  
// Create an Gmagick object
$image = new \Gmagick ();
     
$image->newImage(500, 300, 'white');
 
// Set the image format
$image->setImageFormat("png");
  
// Render the draw commands in the 
// GmagickDraw object into the image.
$image->drawImage($draw);
  
// Send the image to the browser
header("Content-Type: image/png");
echo $image->getImageBlob();
  
?>

Output: Program 2:

php

<?php
 
// require_once('path/vendor/autoload.php');
  
// Create new GmagickDraw object
$draw = new \GmagickDraw ();
  
// Set the stroke color
$strokeColor = new \GmagickPixel('Green');
 
// Set the filled color
$fillColor = new \GmagickPixel('Red');
 
// Set the stroke color
$draw->setStrokeColor('Green');
 
// Set the filled color
$draw->setFillColor('Red');
      
// Use setFillOpacity() Function
$draw->setFillOpacity(0.5);
 
// Set the stroke width
$draw->setStrokeWidth(2);
  
$smoothPointsSet = [ [
          ['x' => 10.0 * 5, 'y' => 10.0 * 5],
          ['x' => 30.0 * 5, 'y' => 90.0 * 5],
          ['x' => 25.0 * 5, 'y' => 10.0 * 5],
          ['x' => 50.0 * 5, 'y' => 50.0 * 5], ] ];
  
foreach ($smoothPointsSet as $points) {
    $draw->bezier($points);
}
 
// Create an image object
$gmagick = new \Gmagick ();
 
$gmagick->newImage(300, 300, 'White');
 
// Set the image format
$gmagick->setImageFormat("png");
  
// Render the draw commands in the
// GmagickDraw object into the image.
$gmagick->drawImage($draw);
  
// Send the image to the browser
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>