[Squeakland] pen trail as object (in OLPC)

[Randy Heiland]

Thank you once again for your reply, Pierre-Andre.  You helped  =

provide details of what Alan had earlier suggested, I think.  I must  =

admit I still find it a bit confusing.  I basically repeated your  =

project - using a Line and Circle from the Graphics category of the  =

Objects Catalog.  However, I could never change the pen size of the  =

drawn polygon.  Is it not possible using this approach?  Similarly, I  =

tried to change the color - both the penColor (pen use category) and  =

in the color category, but could not.

-Randy

On Sep 8, 2007, at 5:37 PM, Dreyfuss Pierre-Andr=E9 (EDU) wrote:

>
> There is an other solution.
> Use a lineMorph instead of penTrail.
>
>
> Get object catalog from box flap.
> Get a line in category graphics.
>
> get an ellipse
>
> The line has a category polygon in the script viewer
> You'll find there all you need for creating a new vertex, putting  =

> it at the position of the ellipse.
> move the ellipse and create a new vertex, put it at the position of  =

> the ellipse ... and so on
>  The line is the wanted object and has the wanted shape !
>
> Here are the scripts  for getting a circle.
>
>
> Player118 -- 1 instance, nomm=E9 Ligne
> Player119 -- 1 instance, nomm=E9 Ellipse
>
>
> ---------------------------------------------------------------------- =

> ----------------------
> Ligne. scripts :
>
> Ligne.newposition
> 	self appendVertex.
> 	self setVertexCursor: self getVerticesCount.
> 	self setXAtCursor: Ellipse getX.
> 	self setYAtCursor: Ellipse getY
>
> Ligne.init
> 	self removeAllButCursor.
> 	self setXAtCursor: Ellipse getX.
> 	self setYAtCursor: Ellipse getY
> ---------------------------------------------------------------------- =

> ----------------------
> Ellipse. scripts :
>
> Ellipse.script1
> 	self forward: 5.
> 	self turn: 5.
> 	Ligne newposition
>
>
> Download the project:
> http://ofset.org:8000/super/uploads/lineTrack.002.pr
>
> Regards.
>
>
>
> -------- Message d'origine--------
> De: squeakland-bounces at squeakland.org de la part de Randy Heiland
> Date: jeu. 06/09/2007 02:06
> =C0: Squeakland list
> Objet : [Squeakland] pen trail as object (in OLPC)
>
> I was revisiting this issue - wanting to have my drawn pen trail
> become an object, and I dug up this post:
> http://article.gmane.org/ =

> gmane.comp.lang.smalltalk.squeak.squeakland/869
>
> Are these directions still basically true for the OLPC etoys, i.e. do
> I need to resort to writing a textual script?
>
> thanks, Randy
>
>
>

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