CairoContext::deviceToUserDistance()
(PECL cairo >= 0.1.0)
Transform a distance
说明
面向对象风格(method):
public CairoContext::deviceToUserDistance(float $x,float $y): array
过程化风格:
cairo_device_to_user_distance(CairoContext$context,float $x,float $y): array
Transform a distance vector from device space to user space. This function is similar to CairoContext::deviceToUser() or cairo_device_to_user() except that the translation components of the inverse Cairo Transformation Matrix will be ignored when transforming($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::deviceToUser() Transform a coordinate