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PHP | GmagickDraw getfillopacity() Function
  • Last Updated : 21 Jan, 2020

The GmagickDraw::getfillopacity() function is an inbuilt function in PHP which is used to get the opacity used when drawing using the fill color or fill texture. Fully opaque is 1 and fully transparent is 0.

Syntax:

float GmagickDraw::getfillopacity( void )

Parameters: This function doesn’t accept any parameters.

Return Value: This function returns a float value containing the opacity.

Exceptions: This function throws GmagickDrawException on error.



Below given programs illustrate the GmagickDraw::getfillopacity() function in PHP:

Used Image:

Program 1:




<?php 
  
// Create a new GmagickDraw object 
$draw = new GmagickDraw(); 
    
// Get the Fill Opacity 
$fillOpacity = $draw->getfillopacity(); 
echo $fillOpacity
?> 

Output:

0 // Which is the default value

Program 2:




<?php
  
// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');
  
// Create a GmagickDraw object
$draw = new GmagickDraw();
  
// Set the color
$draw->setFillColor('#0E0E0E');
  
// Draw rectangle for background
$draw->rectangle(-10, -10, 800, 400);
  
// Set the fill color
$draw->setFillColor('yellow');
  
// Set the font size
$draw->setFontSize(20);
  
// Set the fill opacity
$draw->setfillopacity(1);
  
// Annotate a text
$draw->annotate(50, 30, 'The fill opacity here is '
    . $draw->getfillopacity());
  
// Set the fill opacity
$draw->setfillopacity(0.5);
  
// Annotate a text
$draw->annotate(50, 100, 'The fill opacity here is '
    . $draw->getfillopacity());
  
// Draw the image
$gmagick->drawImage($draw);
  
// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

Reference: https://www.php.net/manual/en/gmagickdraw.getfillopacity.php

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