Converts the point from the receiver’s coordinate system to the specified layer’s coordinate system.
- iOS 2.0+
- macOS 10.5+
- tvOS 9.0+
- Core Animation
A point specifying a location in the coordinate system of
The layer into whose coordinate system
pis to be converted. The receiver and
lmust share a common parent layer. This parameter may be
The point converted to the coordinate system of
If you specify
nil for the
l parameter, this method returns the original point added to the layer's frame's origin.
Listing 1 shows code that creates two layers,
yellow is scaled so that it is half of its original size.
Figure 1 shows the two layers and an overlaid point (rendered as a blue cross) with a position of
(50 in the red layer's coordinate system.
Listing 2 show how you can find the coordinates of that point in the yellow layer's coordinate system.