[edit] Last updated: Fri, 17 May 2013

ImagickDraw::setGravity

(PECL imagick 2.0.0)

ImagickDraw::setGravity — Sets the text placement gravity

说明

bool ImagickDraw::setGravity ( int $gravity )

Warning

本函数还未编写文档，仅有参数列表。

Sets the text placement gravity to use when annotating with text.

参数

gravity: GRAVITY_ constant

返回值

没有返回值。

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alan at ridersite dot org ¶

5 years ago


Gravity constants are very useful as they can save having to calculate the placement of variable text strings and font sizes.



For example: 

$draw->setGravity (Imagick::GRAVITY_CENTER);

$image->annotateImage($draw, 0, 0, 0, 'The quick brown fox jumps over the lazy dog');



Will horizontally and vertically center the text string.



Note, there are several gravity constants available. See, Constants — Imagick class constants

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