If ImagickDraw::setGravity ( int $gravity ) has been set, e,g; with $gravity= imagick::GRAVITY_CENTER.
Then, the x and y values offset the text from where the gravity setting would have placed it.
If the example included: $draw->setGravity (Imagick::GRAVITY_CENTER);
$image->annotateImage($draw, 10, 45, 0, 'The quick brown fox jumps over the lazy dog');
The text would be rendered to the right 10px and down 45px from the center.
Gravity constants are very useful as they can save having to calculate the placement of variable text strings and font sizes.
Imagick::annotateImage
(No version information available, might be only in CVS)
Imagick::annotateImage — Annotates an image with text
설명
This function is currently not documented; only the argument list is available.
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Annotates an image with text.
매개변수
- draw_settings
-
The ImagickDraw object that contains settings for drawing the text
- x
-
Horizontal offset in pixels to the left of text
- y
-
Vertical offset in pixels to the baseline of text
- angle
-
The angle at which to write the text
- text
-
The string to draw
반환값
성공시에 TRUE를 반환합니다.
예제
Example#1 Using Imagick::annotateImage():
Annotate text on an empty image
<?php
/* Create some objects */
$image = new Imagick();
$draw = new ImagickDraw();
$pixel = new ImagickPixel( 'gray' );
/* New image */
$image->newImage(800, 75, $pixel);
/* Black text */
$pixel->setColor('black');
/* Font properties */
$draw->setFont('Bookman-DemiItalic');
$draw->setFontSize( 30 );
/* Create text */
$image->annotateImage($draw, 10, 45, 0, 'The quick brown fox jumps over the lazy dog');
/* Give image a format */
$image->setImageFormat('png');
/* Output the image with headers */
header('Content-type: image/png');
echo $image;
?>
Imagick::annotateImage
23-Aug-2007 12:37
