Hi,
I would like to be able to rotate objects and text, at least 90, 180, 270
degrees.
I guess that you could use the same routines as used for flipping the
objects. If flipping is done like this:
Flip vertical: new X = old X
new Y = - old Y
Flip horizontal: new X = - old X
new Y = old Y
Flip both dir: new X = - old X
new Y = - old Y
The you could say that flipping both is the same as rotating 180 degrees.
The you should also be able to say that:
Rotate 90 degrees counter clockwise is: new X = old Y
new Y = - old X
Rotate 90 degrees clockwise is: new X = - old Y
new Y = old X
This is at least an idea, that don't require a lot of sin() and cos()
operations, but we get some fixed rotation.
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