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 CairoContext::deviceToUserDistance
( float
$x
, float $y
) : array过程化风格:
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