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PHP | ImagickDraw setFillOpacity() Function

  • Difficulty Level : Easy
  • Last Updated : 04 Oct, 2021

The ImagickDraw::setFillOpacity() function is an inbuilt function in PHP which is used to set the opacity to use when drawing using the fill color or fill texture.
Syntax: 

bool ImagickDraw::setFillOpacity( $fillOpacity ) 

Parameters: This function accepts a single parameter $fillOpacity which is used to hold the value of the opacity as float type.
Return Value: This function does not return any value.
Below programs illustrates the ImagickDraw::setFillOpacity() function in PHP:
Program 1:  

php




<?php
 
// require_once('vendor/autoload.php');
  
// Create ImagickDraw object
$draw = new \ImagickDraw();
 
// 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 Imagick object
$image = new \Imagick();
     
$image->newImage(500, 300, 'white');
 
// Set the image format
$image->setImageFormat("png");
  
// Render the draw commands in the
// ImagickDraw object into the image.
$image->drawImage($draw);
  
// Send the image to the browser
header("Content-Type: image/png");
echo $image->getImageBlob();
  
?>

Output: 

setFillOpacity

Program 2: 

php




<?php
 
// require_once('path/vendor/autoload.php');
  
// Create new ImagickDraw object
$draw = new \ImagickDraw();
  
// Set the stroke color
$strokeColor = new \ImagickPixel('Green');
 
// Set the filled color
$fillColor = new \ImagickPixel('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
$imagick = new \Imagick();
 
$imagick->newImage(300, 300, 'White');
 
// Set the image format
$imagick->setImageFormat("png");
  
// Render the draw commands in the
// ImagickDraw object into the image.
$imagick->drawImage($draw);
  
// Send the image to the browser
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output: 

setFillOpacity

Reference: http://php.net/manual/en/imagickdraw.setfillopacity.php 


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