How to create CGAffineTransform from CGAffineTransformMake?

Question

I went through apple documentation for CGAffineTransform . But I couldn't able to figure out what are the values need to be passed to CGAffineTransformMake method to create CGAffineTransform .

There are six values need to be passed for creation of CGAffineTransform . They are a,b,c,d,tx and ty.

Could anyone brief me about the parameters?

Answer 1

Generally speaking, unless you understand that matrix manipulations well (or are a masochist), you want to use the CGAffineTransformMake Rotation / Scale / Translation methods which provide a much cleaner and obvious interface for the standard tasks you want to complete.

You can also chain the transformations together with CGAffineTransform Rotate / Scale / Translate so that you can 'build' a single complex transform (or append to a previous existing transform).