PHP | GmagickDraw getstrokeopacity() Function

The Gmagick::getstrokeopacity() function is an inbuilt function in PHP which is used to return the opacity of stroked object outlines.

Syntax:

public GmagickDraw::getstrokeopacity( void )

 
Parameters: This function does not accept any parameter.

Return Value: This function returns the double describing opacity.

Errors/Exceptions: This function throws GmagickException on error.

Below programs illustrate the Gmagick::getstrokeopacity() function in PHP:

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php 
     
// Create a GmagickDraw object 
$draw = new GmagickDraw(); 
    
// Create GmagickPixel object 
$strokeColor = new GmagickPixel('Red'); 
$fillColor = new GmagickPixel('Green'); 
    
// Set stroke opacity
$draw->setstrokeopacity(1); 
  
// Set the width and height of image 
$draw->setStrokeWidth(7); 
$draw->setFontSize(72); 
     
// Function to draw circle  
$draw->circle(250, 250, 100, 150); 
   
$gmagick = new Gmagick(); 
$gmagick->newImage(500, 500, 'White'); 
$gmagick->setImageFormat("png"); 
$gmagick->drawImage($draw); 
  
// Using getstrokeopacity() function
  
print_r($draw->getstrokeopacity());
?> 

chevron_right


Output:

1

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php 
      
// Create a GmagickDraw object 
$draw = new GmagickDraw();  
     
// Set the color
$draw->setFillColor('Green'); 
     
// Set stroke opacity
$draw->setstrokeopacity(0.5);
   
// Function to draw line
for($x = 0; $x < 40; $x++) {
    $draw->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
    $draw->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
    $draw->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
    $draw->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
}
  
$gmagick = new Gmagick(); 
$gmagick->newImage(500, 500, 'White'); 
$gmagick->setImageFormat("png"); 
   
// Set the color
$draw->setFillColor('Black'); 
   
// Set Font Size
$draw->setFontSize(25); 
   
// Use of drawimage function
$gmagick->drawImage($draw); 
$gmagick->annotateImage($draw, 5, 120, 0, 
        'GeeksforGeeks: A computer science portal'); 
   
// Display the stroke opacity
echo $draw->getstrokeopacity();
  
?> 

chevron_right


Output:

0.49999237048905

Reference:http://php.net/manual/en/gmagickdraw.getstrokeopacity.php 



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.