PHP | ImagickPixel __construct() Function

The ImagickPixel::__construct() function is an inbuilt function in PHP which is used to construct an ImagickPixel object. If a color is specified, the object is constructed and then initialized with that color.

Syntax:

bool ImagickPixel::__construct( void )

Parameters: This function accepts a single parameter $color which is optional and contains the color.

Return Value: This function returns an ImagickPixel object on success.

Exceptions: This function throws ImagickException on error.



Below programs illustrate the ImagickPixel::__construct() function in PHP:

Program 1:

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<?php
  
// Create a new imagick object using __construct
// function without any arguments
$imagickPixel = new ImagickPixel();
  
// Set the color
$imagickPixel->setColorValue(Imagick::COLOR_ALPHA, 0.6);
  
// Get the color
echo print_r($imagickPixel->getColorValue(Imagick::COLOR_ALPHA));
?>

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Output:

0.61

Program 2:

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<?php
  
// Create a new imagick object using __construct
// function with a color as argument
$imagickPixel = new ImagickPixel('#41bf63');
  
// Get the color
echo $imagickPixel->getColorAsString();
?>

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Output:

srgb(65, 191, 99)

Program 3:

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<?php
  
// Create a new imagick object using __construct
// function with a color as argument
$imagickPixel = new ImagickPixel('#62c730');
  
// Create a new imagick object
$imagick = new Imagick();
  
// Create a image on imagick object
$imagick->newImage(800, 250, 'white');
  
// Create a new imagickDraw object
$draw = new ImagickDraw();
  
// Set the color using imagickPixel
$draw->setFillColor($imagickPixel);
  
// Set the font size
$draw->setFontSize(80);
  
// Annotate a text
$draw->annotation(100, 150, 'GeeksforGeeks');
  
// Render the draw commands
$imagick->drawImage($draw);
  
// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

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Output:

Reference: https://www.php.net/manual/en/imagickpixel.construct.php




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