PHP | ImagickDraw setStrokeOpacity() Function

The ImagickDraw::setStrokeOpacity() function is an inbuilt function in PHP which is used to specify the opacity of stroked object outlines. The value of opacity lies between 0 to 1.

Syntax:

bool ImagickDraw::setStrokeOpacity( $stroke_opacity )

Parameters: This function accepts a single parameter $stroke_opacity which is used to hold the value of stroke opacity as float type.



Return Value: This function does not return any value.

Below programs illustrates the ImagickDraw::setStrokeOpacity() function in PHP:

Program 1:

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<?php
  
// require_once('path/vendor/autoload.php');
  
// Create an ImagickDraw object to draw into. 
$draw = new \ImagickDraw();
  
// Set the stroke color 
$draw->setStrokeColor('Green');
  
// Set the filled color 
$draw->setFillColor('Red');
  
// Set the stroke opacity 
$draw->setStrokeOpacity(0.5);
  
// Set the stroke width
$draw->setStrokeWidth(9);
  
// Draw the rectangle
$draw->rectangle(40, 30, 200, 260);
  
// Create new imagick object 
$image = new \Imagick();
  
// Create new image of given size 
$image->newImage(240, 300, 'White');
  
// Set the image format 
$image->setImageFormat("png");
  
// Draw the image
$image->drawImage($draw);
  
header("Content-Type: image/png");
  
// Display the output image
echo $image->getImageBlob();
?>

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Output:

setstrokeopacity


Program 2:













                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















<?php 


  


// require_once('path/vendor/autoload.php'); 


  


// Create an ImagickDraw object to draw into.  


$draw = new \ImagickDraw(); 


  


// Set the Stroke Color 


$draw->setStrokeColor('Black'); 


  


// Set the Stroke Opacity 


$draw->setStrokeOpacity(0.6); 


  


// Set the Stroke Width 


$draw->setStrokeWidth(4); 


  


//Set the filled color  


$draw->setFillColor('lightgreen'); 


$points = [ 


        ['x' => 50 * 6, 'y' => 10 * 5], 


        ['x' => 20 * 7, 'y' => 30 * 5],  


        ['x' => 60 * 8, 'y' => 50 * 5],  


        ['x' => 70 * 3, 'y' => 15 * 5], 


    ]; 


  


// Draw the polygon  


$draw->polygon($points); 


  


// Create new Imagick object 


$image = new \Imagick(); 


  


// Set the image dimensions 


$image->newImage(500, 300, 'white'); 


  


// Set the image format  


$image->setImageFormat("png"); 


  


// Draw the image  


$image->drawImage($draw); 


  


header("Content-Type: image/png"); 


  


// Display the image  


echo $image->getImageBlob(); 


?> 



















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Output:

setstrokeopacity


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



          
          
          
          

            

    

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