This is something that is indeed missing. Not many have asked so.
Roassal elements generates Trachel elements.
You can have a look at any class beginning with RT and you will see it produces an instance of a corresponding TR
For example, the class RTBox produces an instance of TRBoxShape (it overrides the method trachelShapeClass) and initialize the instance of TRBoxShape using RTBox>>updateFor: anElement trachelShape: trachelShape

I hope it helps.

Alexandre

> On Feb 20, 2018, at 3:56 PM, Bouremel Abd El Hakim <bourmel21@gmail.com> wrote:
>
> Ok  Thank you.
> Bat I need a docs explains all classes and methods like a class diagrams. And the architecture of visualising engine from the lower to the higher layer.
>
> If it exists.
>
> Le 2018 févr. 20 15:46, "Alexandre Bergel" <alexandre.bergel@me.com> a écrit :
> There is a chapter on Trachel:
> http://agilevisualization.com/AgileVisualization/Trachel/0103-Trachel.html
>
> Alexandre
>
> > On Feb 19, 2018, at 9:10 AM, Bouremel Abd El Hakim <bourmel21@gmail.com> wrote:
> >
> > Hello
> >
> > Anybody can help me i need documentation about Trachel .
> >
> >  Thanks
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