ImagickDraw::setFontSize

(PECL imagick 2, PECL imagick 3)

ImagickDraw::setFontSize — Sets the font pointsize to use when annotating with text

Description

public function ImagickDraw::setFontSize(float $point_size): bool

Warning

This function is currently not documented; only its argument list is available.

Sets the font pointsize to use when annotating with text.

Parameters

point_size: the point size

Return Values

No value is returned.

Examples

Example #1 ImagickDraw::setFontSize() example

<?php
function setFontSize($fillColor, $strokeColor, $backgroundColor) {
 $draw = new \ImagickDraw();
 $draw->setStrokeOpacity(1);
 $draw->setStrokeColor($strokeColor);
 $draw->setFillColor($fillColor);
 $draw->setStrokeWidth(2);
 $draw->setFont("../fonts/Arial.ttf");
 $sizes = [24, 36, 48, 60, 72];
 foreach ($sizes as $size) {
 $draw->setFontSize($size);
 $draw->annotation(50, ($size * $size / 16), "Lorem Ipsum!");
 }
 $imagick = new \Imagick();
 $imagick->newImage(500, 500, $backgroundColor);
 $imagick->setImageFormat("png");
 $imagick->drawImage($draw);
 header("Content-Type: image/png");
 echo $imagick->getImageBlob();
}
?>

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User Contributed Notes 2 notes

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hmkrox at gmail dot com ¶

17 years ago

The font size taken in parameter is not the size in point (1 point = 1/72 inch) but the font's height in pixel. 
Therefore you should do a conversion to have the correct font size if you want to modify a document destined to print.
For example, if your document's resolution is 300ppi, you should add a 25/6 multiplying factor to your fontsize in order to have a correct behaviour of the font.

down

-4

jgsujith at in dot com ¶

17 years ago

<?php
$sourceFile='in.jpg';
$textWrite='God is Great';
$x=50;
$y=50; 
$fontColor='#000000';
$fontSize=34;
 
$colorPix=new ImagickPixel ($fontColor);
$image=new Imagick ($sourceFile);
$draw=new ImagickDraw();
 
$draw->setFontSize($fontSize);//Sets the font pointsize to use when annotating with text
$draw->setFillColor($colorPix);//Sets the fill color to be used for drawing filled objects
 
$image->annotateImage($draw,$x,$y,0,$textWrite);//Annotates an image with text
$image->writeImage('out.jpg');//Writes an image to the specified filename
?>

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