CairoContext::deviceToUser()
(PECL cairo >= 0.1.0)
Transform a coordinate
说明
面向对象风格(method):
public CairoContext::deviceToUser(float $x,float $y): array
过程化风格:
cairo_device_to_user(CairoContext$context,float $x,float $y): array
Transform a coordinate from device space to user space by multiplying the given point by the inverse of the current transformation matrix(CTM).
参数
- $context
A valid CairoContext object created with CairoContext::__construct() or cairo_create()
- $x
x value of the coordinate
- $y
y value of the coordinate
返回值
An array containing the x and y coordinates in the user-space
参见
- CairoContext::deviceToUserDistance() Transform a distance