Re: [Pharo-users] Roassal2 orthogonal lines, attach points and self-lines. - Moose-dev

30 Jul 2014

Hi Peter!

I’ve just added the orthogonal vertical and horizontal lines in Roassal2. Here are some
screenshots.

These last script has been made with:
-=-=-=-=-=-=-=-=-=-=-=-=
| v |
v := RTView new.

v addAll: ((RTEllipse new size: 20; color: (Color red alpha: 0.3)) elementsOn: (1 to:
20)).

shape := RTMultiLine new.
shape orthoVertical.
shape color: (Color blue alpha: 0.3).

RTEdge 
	buildEdgesFromObjects: (1 to: 20) from: [ :n | n // 3 ] to: #yourself using: shape
inView: v.

v elements @ RTDraggable @ RTPopup.

RTTreeLayout on: v elements.
v open
-=-=-=-=-=-=-=-=-=-=-=-=

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

On Jul 26, 2014, at 3:57 PM, Peter Uhnák &lt;i.uhnak(a)gmail.com&gt; wrote:

...
  Hi,

 is there any support for orthogonal lines in Roassal2? I've seen something similar
(ROOrthoVerticalLineShape), however nothing of that sort in Roassal2. I would imagine it
to behave similarly to RTBezierLine - having controllingElements to specify the corners.
(While ROOrtholines did it automatically I was looking for something more manual, so it
can go in both directions - thus the controllingElements).

 Second thing I wasn't able to figure out is whether it is possible to create line
from element to itself. All *AttachPoint classes aren't really able to cope with that.
The best result I got was from Vertical/Horizontal AttachPoints (combined with
BezierLine), however I would like to be able to specify which side it would start on and
end on. Ideally not just middle of sides, but arbitrary part of the shape (I imagine that
might be hard for non-rectangular shapes).

 Thanks,
 Peter 