On Mar 9, 2016, at 16:54, Peter Uhnák <i.uhnak@gmail.com> wrote:

element := arrow element.

This is very odd line, why do you do this? You don't ask line shapes for elements, because they have none, they are edges.

Didn't you mean to write this instead?

arrow := RTArrowedLine new
color: trans color;
withOffsetIfMultiple.
edge := arrow edgeFrom: efrom to: eto.

I needed to do a when: TRMouseClick do: on the element, plus keep it around for later reference. But the edge seems to work equally well, so that’s great, thanks! :-)

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Johan Fabry - http://pleiad.cl/~jfabry
PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile