Re: Stencils in Etoys
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Subbu,
Thanks this is a lot of fun and useful. So I tried to use it for fractions (although I really like your art work project at Ofset better, but I am thinking about fractions lately)
I used the "do menu item | stencil a sketch" scripting tile in a "Mouse Down" script. The rectangle then moves forward by its width. So with a series of successive clicks you can make a fraction.
It get's my vote for inclusion in the next release. Thanks, Stephen
On Fri, Jul 22, 2011 at 10:02 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote: Hi Steve, _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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On Saturday 23 Jul 2011 10:06:05 AM Steve Thomas wrote:
> Thanks this is a lot of fun and useful. So I tried to use it for fractions > (although I really like your art work project at Ofset > <http://community.ofset.org/index.php/Grab_area_button>better, but I am > thinking about fractions lately) Art and Math are not treated differently (at least in ancient India). Art is just high level maths. I wrote the patch to help Susanne Guyader, an 80+ year old artist who used Squeak/Etoys to guide art teachers in France. She deserves all the credit for the Art and Squeak project. > I used the "do menu item | stencil a sketch" scripting tile in a "Mouse > Down" script. The rectangle then moves forward by its width. So with a > series of successive clicks you can make a fraction. Exactly! Stencils allow children to explore the math behind the patterns. It is difficult for them to perceive the difference between 1/8 and 3/8 without visual aids in the beginning. Unlike charts, Etoys is interactive. Unlike paper or cardboard, it allows children to repeat any number of times without waste. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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Subbu,
Would it be possible to have a tile that instead of "Handing me a sketch," allows me to set a player or graphic variable to the sketch? Perhaps, "Graphic under" Stephen
On Sat, Jul 23, 2011 at 1:03 AM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:
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On Tuesday 26 Jul 2011 9:37:35 AM Steve Thomas wrote:
> Would it be possible to have a tile that instead of "Handing me a sketch," > allows me to set a player or graphic variable to the sketch? Perhaps, > "Graphic under" With this patch loaded, you can use withStencil: method on SketchMorph class to generate a sketch morph. E.g. myvar := SketchMorph withStencil: self costume renderedMorph. HTH .. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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Hi
Could you add this change set to the issue tracker for possible inclusion? Thanks, Karl
On Tue, Jul 26, 2011 at 6:50 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:
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On Tuesday 26 Jul 2011 11:36:17 PM karl ramberg wrote:
> Hi > Could you add this change set to the issue tracker for possible inclusion? > http://tracker.squeakland.org Will do it by this weekend. My Dev image (#2379) is quite a few patches behind the trunk. Etoys was under feature freeze for 4.x when I was working on this piece. Now that it is open for new features, I will submit it to Inbox. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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Subbu,
If the alpha of the object is 0 "stencil a sketch" stencils an almost invisible sketch. If alpha >=1 it generates a sketch (that looks like alpha=100). I like the behavior where I can place an alpha>0 playfield or rectangle in front (or behind either seems to take a "screen shot") an section of the screen I want to sketch and that the sketch is the equivalent of alpha =100 (even if my playfield/rectangle has alpha < 100). Would be a "nice to have" if when the alpha=0, my sketch is still the equivalent of alpha=100.
Sorry for the nitpicking ;) Thanks,
Stephen On Tue, Jul 26, 2011 at 9:15 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:
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On Wednesday 27 Jul 2011 9:31:55 AM Steve Thomas wrote:
> I like the behavior where I can place an alpha>0 playfield or rectangle in > front (or behind either seems to take a "screen shot") an section of the > screen I want to sketch and that the sketch is the equivalent of alpha =100 > (even if my playfield/rectangle has alpha < 100). Would be a "nice to > have" if when the alpha=0, my sketch is still the equivalent of alpha=100. Try using the silhouette of the sketch as a stencil. I realize it is a two- step process but it keeps both options open. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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In reply to this post by K K Subbu
On Wednesday 27 Jul 2011 6:45:25 AM K. K. Subramaniam wrote:
> On Tuesday 26 Jul 2011 11:36:17 PM karl ramberg wrote: > > Hi > > Could you add this change set to the issue tracker for possible > > inclusion? http://tracker.squeakland.org > > Will do it by this weekend. My Dev image (#2379) is quite a few patches > behind the trunk. > > Etoys was under feature freeze for 4.x when I was working on this piece. > Now that it is open for new features, I will submit it to Inbox. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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In reply to this post by Steve Thomas
On Tuesday 26 Jul 2011 9:37:35 AM Steve Thomas wrote:
> Would it be possible to have a tile that instead of "Handing me a sketch," > allows me to set a player or graphic variable to the sketch? Perhaps, > "Graphic under" You could also look at creating buttons with the following statements: stencil := EllipseMorph fromHand: ActiveHand. Creates an EllipseMorph interactively (pick center and extent). Ditto for RectangleMorph. EllipseMorph newFrom: ActiveHand. RectangleMorph newFrom: ActiveHand. PolygonMorph newFrom: ActiveHand. button friendly versions for creating shapes directly in the world. SketchMorph fromPolygon. SketchMorph fromLasso. World grabFloodFromScreen: nil. Button friendly versions of 'grab with rubber band', 'grab with lasso' and 'grab flood area'. shadow := SketchMorph withForm: someMorph silhouetteForm. sketchBelow := SketchMorph withStencil: someMorph. Regards .. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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In reply to this post by Steve Thomas
Hi,
I looked at this and it's generally a nice addition. Some comments: The additions to the WorldMenu are not useful to Etoys since we don't have the WorldMenu. These additions are:
Grab rectangle from screen. We already have that in the Supplies flap. Grab lasso from screen. We already have that in the Supplies flap. Grab polygon from screen.
Grab flood area from screen. These two would be nice to to add to for example the Supplies flap. But they must the be made into buttons as the Grab patch and Lasso already are. Karl On Sat, Jul 23, 2011 at 6:36 AM, Steve Thomas <[hidden email]> wrote: Subbu, _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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On Tuesday 29 Nov 2011 3:11:25 PM karl ramberg wrote:
> Hi, > I looked at this and it's generally a nice addition. > > Some comments: > The additions to the WorldMenu are not useful to Etoys since we don't have > the WorldMenu. You're right. I didn't have time to wrap the methods into tiles. I just put the tool buttons into WorldMenu as a temp measure. > These additions are: > > Grab rectangle from screen. We already have that in the Supplies flap. > Grab lasso from screen. We already have that in the Supplies flap. Digging into Supplies flap for tools breaks the flow of thought while working on shapes. I liked the way Sutherland manipulated shapes directly. It is much more intuitive to sketch a shape directly and use it as a 'cutter' than to have to choose between rectangle/lasso/flood tools. > Grab polygon from screen. > Grab flood area from screen. These two would be nice to to add to for > example the Supplies flap. But they must the be made into buttons as the > Grab patch and Lasso already are. True, though I am not sure if that is the best way. Grab tools are messy when the same cut has to be repeated ("cookie cutter"). If the methods are added to morphs, they can be invoked through scripts/tiles. Then kids can create their own tool buttons. Regards .. Subbu _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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2011/12/1 K. K. Subramaniam <[hidden email]>
On Tuesday 29 Nov 2011 3:11:25 PM karl ramberg wrote: I don't know where to put them. Maybe a sub menu with a stay up button or a tear out palette from the supplies flap could be nice ?
Yes. We have to find a good place for these tools. The ZOO images have separate palettes and those seems pretty nice.
Karl _______________________________________________ etoys-dev mailing list [hidden email] http://lists.squeakland.org/mailman/listinfo/etoys-dev |
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