ImagickDraw::setFontSize

(PECL imagick 2, PECL imagick 3)

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

Опис

public ImagickDraw::setFontSize(float $pointsize): bool

Увага

Наразі ця функція не документована. Доступний лише список її параметрів.

Sets the font pointsize to use when annotating with text.

Параметри

pointsize: the point size

Значення, що повертаються

Не повертає значень.

Приклади

Приклад #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

down

hmkrox at gmail dot com ¶

15 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 ¶

15 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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