I ended up solving this by forgetting about using masks. Instead, I just constructed a UIBezierPath
using the moveToPoint:
and addLineToPoint:
methods in order to draw the desired portions of the circle.
Masking CALayer with Lines
-
03-06-2022 - |
Question
I'm trying to find an efficient way to perform the following clipping operation on a CAShapeLayer
that I have.
What I'm Trying to Do
I have a CAShapeLayer
whose circular path consists of a UIBezierPath
that has been constructed using the method [UIBezierPath bezierPathWithArcCenter:]
(this is a full circle from 0 to 2PI radians), and inside of that circle, I want to cut out multiple lines that are drawn at different angles, making the area below the cut out lines transparent on the circle. I want these lines to begin and end at points on the outside of the circle aka the edges of the CAShapeLayer's path.
I'm wondering whether there is a way to use the mask
property on the CAShapeLayer
to accomplish this, or whether I should abandon the idea of cutting out from the full circle and just draw each arced triangle separately as different CAShapeLayers
.
Thank you for your any help!
Solution