Hi,

apparently RTLabelled (or rather TRConstraint) doesn't respect bezier line (not unexpected), and thus probably also all non-straight-line elements (RTMultiLine, RTSomethingGradientLine, maybe others). I am now working on a solution for our heavily modified dynamic multiline, so maybe the solution would be applicable also for the lines in roassal.

Example:

~~~~~~~~~~~~~~~

| v shape edge els |

v := RTView new.

shape := RTEllipse new size: 10; color: (Color purple alpha: 0.3).

els := (shape elementsOn: (1 to: 3)) @ RTDraggable.

v addAll: els .

RTHorizontalLineLayout on: v elements.

v elements first translateBy: -50 @ 50.

v elements last translateBy: 150 @ 100.

edge := (RTBezierLine new controllingElements: v elements) edgeFrom: els first to: els last.

v add: edge.

edge @ (RTLabelled new text: 'a text').

^ v

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Peter