Learn how to move your canvas before painting into it by using transforms.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4659-drawing-in-ios/lessons/14
Learn how to move your canvas before painting into it by using transforms.
Not really able to understand or visualise how exactly the negative value in scale transform work, i.e., this code - context?.scaleBy(x: 1, y: -1)
. Can anyone please help in understanding this well?
Thatβs an original unit square scaled by (1, 0.5) and also scaled by (1, -1).
Does that help?
@caroline Oh! Got it! Understood it now. Scale by (1, 0.5) really helped to put this thing into perspective. Thanks a lot.