You can also use bezier lines or SVG

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| v e1 e2 l s p1 p2 path svg|
v := RTView new.

path := 'M -150 150 Q -75 150 -75 75 Q -75 0 0 0'.
svg := RTSVGPath new borderColor: Color red; path: path; element.
v add: svg.

^ v
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Peter

On Thu, May 14, 2015 at 10:36 PM, milton mamani <akevalion@gmail.com> wrote:
Try with RTArc:

view := RTView new.
shape := RTArc new
innerRadius: [ :i | i *15];
externalRadius: [ :i | (i * 15) + 4];
alphaAngle: 45;
betaAngle: 135;
color: Color black.
view addAll: (shape elementsOn: (1 to: 11) ).

view 

Cheers,
Milton

2015-05-14 16:26 GMT-04:00 Miguel Campusano <mcampusa@dcc.uchile.cl>:
Hi all,
I want to draw curved lines in Roassal but I can't find how to.
The image below is an example of what I am trying to do.


Bests,
Miguel

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