#19 Line thickness make unreadable the drawing

[Matteo Boscolo]

It seems that the line thickness is absolute while we made some zoom operations, so it appends that if you write the very little lines, the drawing is unreadable.
we mast correct this problem using an relative thickness.

[Matteo Boscolo]

Fixed.
Now the thickness of the line is at the proper fixed size.

[Gertwin]

I agree.
Same for the strange clipping when lines are drawn with a large lineweight/thickness.

I will look for a solution.