CairoContext
PHP Manual

CairoContext::deviceToUserDistance

cairo_device_to_user_distance

(PECL cairo >= 0.1.0)

CairoContext::deviceToUserDistance -- cairo_device_to_user_distance — Transform a distance

说明

面向对象风格 (method):

public array CairoContext::deviceToUserDistance ( float $x , float $y )

过程化风格:

array cairo_device_to_user_distance ( CairoContext $context , float $x , float $y )

Transform a distance vector from device space to user space. This function is similar to CairoContext::deviceToUser() or cairo_device_to_user() except that the translation components of the inverse Cairo Transformation Matrix will be ignored when transforming (x,y).

参数

context

A valid CairoContext object created with CairoContext::__construct() or cairo_create()

x

X component of a distance vector

y

Y component of a distance vector

返回值

Returns an array with the x and y values of a distance vector in the user-space

参见

CairoContext
PHP Manual