CairoContext::curveToCairoContext::deviceToUser
cairo_device_to_user
(PECL cairo >= 0.1.0)
CairoContext::deviceToUser -- cairo_device_to_user — Transform a coordinate
说明
面向对象风格 (method):
public array CairoContext::deviceToUser
( float
$x
, float $y
)过程化风格:
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
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