ImagickDraw::setFontSize
(PECL imagick 2.0.0)
ImagickDraw::setFontSize — Sets the font pointsize to use when annotating with text
说明
$pointsize
)本函数还未编写文档，仅有参数列表。
Sets the font pointsize to use when annotating with text.
参数
-
pointsize -
the point size
返回值
没有返回值。
范例
Example #1 ImagickDraw::setFontSize()
<?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 ();
}
?> 用户评论:
[#1] hmkrox at gmail dot com [2009-08-03 07:10:26]
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.
[#2] jgsujith at in dot com [2009-07-15 06:23:02]
<?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
?>