PHP | GmagickDraw setfontsize() Function

The Gmagick::setfontsize() function is an inbuilt function in PHP which is used to set the font size to use when annotating with text.

Syntax:

public GmagickDraw::setfontsize( $pointsize ) 

Parameters: This function accept single parameter $pointsize which is used to store font size.

Return Value: This function returns the GmagickDraw object on success.

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

Program 1:

<?php

// Create a GmagickDraw object
$draw = new GmagickDraw();

// Create GmagickPixel object
$fillColor = new GmagickPixel('Green');

// Set stroke opacity
$draw->setfillcolor('red');

// Set the width and height of image
$draw->setStrokeWidth(7);

//Set the fontsize
$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 getfontsize() function
print_r($draw->getfontsize());
?>

Output:

72

Program 2:

<?php

// Create a GmagickDraw object
$draw = new GmagickDraw();

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

// Set the width and height of image
$draw->setStrokeWidth(1);

// 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 output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

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