Hi,

We are integrating Athens transformation to Roassal2/Trachel and I have reached an issue.

In drawing code I use something like this:

-=-=-=-

-=-=-=-

I have a problem, that sometimes it crashes because it expects a float value (I understand why). I suppose I do not have to keep float values in AthensAffineTransform object. My suggestion is to ensure float values where it is expected. For example the method #loadAffineTransform could be like this:

-=-=-=-

AthensCairoMatrix>>loadAffineTransform: m
self 
initx: m x asFloat
y: m y asFloat
sx: m sx asFloat
sy: m sy asFloat
shx: m shx asFloat
shy: m shy asFloat

-=-=-=-

Right now I have to do that transformation myself whenever I use Athens objects. I see it error prone and I do not see it obvious. 

On other hand I do not want to keep float values in my AthensAffineTransform, because if user do #scaleBy: 0.7 and then #scaleBy: (1/0.7) I want to get the same original value. Otherwise the image could change its size.

The same change could be for other methods in AthensCairoMatrix.

What do you think?

Juraj