Marian Brändle
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Marian Brändle
Maybe as a hint: for my Lasso Selection Tool I "corrected" the transformation matrices for each object: https://github.com/Marian-Braendle/ipe-lassotool/blob/90e3eae9ce98856aff49a416fcc3dd07fefcc04e/lassotool.lua#L224