[IAEP] Any ideas how to make an image with a transparent background inSugar?

[Alan Kay]

Hi Caroline

I think what you want to do is to take that picture of the caterpillar and erase all but the caterpillar?

To do that you want to "repaint" the picture (it is already an image).

First get the "halos" (which every object in Etoys will show) by right clicking on the picture.

                 There is balloon help on most things in Etoys, and each halo handle will say what it does.

                       For example, to duplicate your picture, drag on the green button in the upper right corner. A duplicate copy will drag off.

                       To put something in the trash, click on the "move to trash" handle in the upper left corner.

--> To repaint, click on the "repaint" handle on the right side, mid height.

                  There is help about most things in Etoys under the "?" on the Sugar menu bar.

For doing your task, I like to choose "no color" in the paint palette (it's the bar over the color rainbow). Then I will choose various sizes of the circular brushes to do the work of removing the background. The "Undo" in the paint box will undo one whole stroke.

When done, click on "Keep" in the paint box. If you want to start over, click on "Toss".

You now have a picture of the caterpillar with transparent fill around it. 

The PNG format (a standard open source format) will allow the picture to be filed with the transparent fill preserved.

I'm presuming that the reverse of the process you used to get the image into Etoys will get it back to where you want to use it.

For a nice way to animate a wriggling caterpillar, you can also look at the example in Sdenka Salas' recent book of the XO in Peru.

Don't hesitate to ask more questions.

Best wishes,

Alan




________________________________
From: Caroline Meeks <caroline at solutiongrove.com>
To: Alan Kay <alan.nemo at yahoo.com>
Cc: iaep <iaep at lists.sugarlabs.org>
Sent: Thursday, October 1, 2009 6:41:26 PM
Subject: Re: [IAEP] Any ideas how to make an image with a transparent  background inSugar?

Thanks Alan,

Where should I look to figure out Etoys paint. I'm stuck and there is no kid here to teach me!

http://screencast.com/t/4lvde8qWV2pD


On Thu, Oct 1, 2009 at 9:32 PM, Alan Kay <alan.nemo at yahoo.com> wrote:

>
>Paint it in Etoys, save as a .PNG picture
>
>Cheers,
>
>Alan
>
>>
>
>
________________________________
From: Caroline Meeks <caroline at solutiongrove.com>
>To: iaep <iaep at lists.sugarlabs.org>
>Sent: Thursday, October 1, 2009 6:28:22 PM
>Subject: [IAEP] Any ideas how to make an image with a transparent background inSugar?
>
>
>http://screencast.com/t/K0lH5L7tsBU
>
>
>I am trying to make a new character for cartoon builder. The video explains my goals.
>>
>Basically I want to take a picture and cut out just the caterpillar and have it be cropped/transparent background.
>
>
>thanks,
>Caroline
>
>-- 
>Caroline Meeks
>Solution Grove
>Caroline at SolutionGrove.com
>
>617-500-3488 - Office
>505-213-3268 - Fax
>
>


-- 
Caroline Meeks
Solution Grove
Caroline at SolutionGrove.com

617-500-3488 - Office
505-213-3268 - Fax



      
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