Yes, alignFromLeft: works perfectly with groups.

Check this:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

rootClasses := { RTShape . RTLayout . RTBuilder }.

groups := rootClasses collect: [ :cls |

g := RTGroup new.

elements := (RTEllipse new size: 8; color: Color blue) elementsOn: cls withAllSubclasses.

g addAll: elements.

edges := RTEdgeBuilder new

view: g;

objects: cls withAllSubclasses from: #superclass.

RTForceBasedLayout on: elements edges: edges.

g

].

v := RTView new.

groups do: [ :aGroup | v addAll: aGroup ].

RTVerticalLineLayout on: groups.

TRConstraint alignFromLeft: groups.

v

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

<Screen Shot 2014-10-07 at 11.11.54 AM.png>

Cheers,

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Oct 6, 2014, at 3:55 PM, Nicolai Hess <nicolaihess@web.de> wrote:

I used the 
TRConstraint alignFromLeft: group 

Don't they work on groups ?

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