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PHP | GmagickDraw scale() Function
  • Last Updated : 03 May, 2021

The GmagickDraw::scale() function is an inbuilt function in PHP which is used to set the scaling factor and apply it to the horizontal and vertical directions to the current coordinate space.
Syntax: 
 

public GmagickDraw::scale( $x, $y ) : GmagickDraw

Parameters: This function accepts two parameter as mentioned above and described below: 
 

  • $x: This parameter is used to hold the value of horizontal factor.
  • $y: This parameter is used to hold the value of vertical factor.

Return Value: This function returns GmagickDraw object on success.
Below programs illustrate the GmagickDraw::scale() function in PHP:
Program 1: 
 

php




<?php
 
// require_once('path/vendor/autoload.php');
 
// Create a GmagickDraw object
 
$draw = new \GmagickDraw ();
 
// Set the Stroke Color
$draw->setStrokeColor('Green');
 
// Set the Fill Color
$draw->setFillColor('Red');
 
// Set the stroke width
$draw->setStrokeWidth(7);
 
// Draw the rectangle
$draw->rectangle(40, 30, 200, 260);
 
// Set the scale
$draw->scale(1.4, 1.4);
 
// Set the fill color
$draw->setFillColor('lightgreen');
 
// Draw the rectangle
$draw->rectangle(40, 30, 200, 260);
 
// Create an Gmagick object
$image = new \Gmagick();
 
// Set the image dimensions
$image->newImage(800, 400, '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();
?>

Output: 
 



Program 2: 
 

php




<?php
 
// require_once('path/vendor/autoload.php');
 
// Create an Gmagick Draw object
$draw = new \GmagickDraw();
 
// Set the stroke color
$strokeColor = new \GmagickPixel('Green');
 
// Set the fill color
$fillColor = new \GmagickPixel('Red');
 
// Set the stroke opacity
$draw->setStrokeOpacity(1);
 
// Set the stroke color
$draw->setStrokeColor('Green');
 
// Set the Fill Color
$draw->setFillColor('Red');
 
// 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);
}
 
// Set the stroke color
$draw->setStrokeColor('black');
 
// Set the fill color
$draw->setFillColor('lightgreen');
 
// Set the scale
$draw->scale(1.5, 1.5);
 
    foreach ($smoothPointsSet as $points) {
        $draw->bezier($points);
    }
 
// Create an gmagick object
$gmagick = new \Gmagick();
 
// Set the image dimensions
$gmagick ->newImage(400, 500, 'White');
 
// Set the image format
$gmagick ->setImageFormat("png");
 
// Draw the image
$gmagick ->drawImage($draw);
header("Content-Type: image/png");
 
// Display the image
echo $gmagick ->getImageBlob();
?>

Output: 
 

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

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