lazur, Thanks so much for your kind reply.

Learnig snapping options has been very usefull for me an is exactly the concept I was requiring, even though all geometrical options were not taken into account.

Regards,

Please, if someone could kindly help me, I'd sincerely appreciate: I launch folowing question: Does Inkscape present geometrical reference points for objects? For example: Circle: - center - 4 quadrant points Rectange: - 4 corners or vertex - 4 side line center points Let's think following two usual...