PHP | ImagickDraw setFillRule() Function

PHP | ImagickDraw setFillAlpha() Function

Last Updated : 30 Dec, 2019

The ImagickDraw::setFillAlpha() function is an inbuilt function in PHP which is used to set the opacity to use when drawing using the fill color or fill texture. Syntax:

bool ImagickDraw::setFillAlpha( float $opacity )

Parameters: This function accepts a single parameter $opacity which holds the opacity of the color where 1 means opaque and 0 means transparent. Return Value: This function returns TRUE on success. Exceptions: This function throws ImagickException on error. Below given programs illustrate the ImagickDraw::setFillAlpha() function in PHP: Program 1:

php

<?php

// 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 to green
$draw->setFillColor('green');

// Set the opacity
$draw->setFillAlpha(0.3);

// 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();
?>

Output:

Program 2:

php

<?php

// 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 to green
$draw->setFillColor('green');

// Set the opacity
$draw->setFillAlpha(0.3);

// Draw a circle
$draw->circle(300, 200, 230, 20);

// Set the color to red
$draw->setFillColor('red');

// Set the opacity
$draw->setFillAlpha(0.5);

// Draw a rectangle
$draw->rectangle(200, 300, 20, 100);

// Render the draw commands
$imagick->drawImage($draw);

// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output:

Reference: https://www.php.net/manual/en/imagickdraw.setfillalpha.php

PHP | ImagickDraw setFillRule() Function

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