[etoys-dev] Copying Graphing tools and Speech Bubbles to Inbox
sthomas1 at gosargon.com
Sun Aug 15 22:49:43 EDT 2010
This is another example of a great thing in Etoys that is hard to discover,
but very useful once you do.
It took me quite a while to find this, actually I think the only reason I
"discovered" it was because someone on the forums or mailing list told me.
Thanks for another excellent guide, unfortunately my problem is trying to
line up the center of the actual text with the tick marks.
The problem I am having is that the center of the object that contains the
text is different from the center fo the text.
On Sun, Aug 15, 2010 at 10:56 AM, <kharness at illinois.edu> wrote:
> Hi Steve,
> Would it help with the problem of lining up text to use this tool?
> ---- Original message ----
> >Date: Sun, 15 Aug 2010 08:17:34 -0400
> >From: Steve Thomas <sthomas1 at gosargon.com>
> >Subject: Re: [etoys-dev] Copying Graphing tools and Speech Bubbles to
> >To: Ricardo Moran <richi.moran at gmail.com>
> >Cc: etoys dev <etoys-dev at squeakland.org>, Randy Caton <rcaton at cnu.edu>
> > On Sat, Aug 14, 2010 at 6:37 PM, Ricardo Moran
> > <richi.moran at gmail.com> wrote:
> > On Sat, Aug 14, 2010 at 4:15 PM, Bert Freudenberg
> > <bert at freudenbergs.de> wrote:
> > Ideally, the graph would just *be* a
> > holder/playfield. E.g. in a bar graph, the user
> > might just put plain rectangles or sketches or
> > whatever. Instead of extra labels, use the
> > rectangle's name. The value would simply be
> > calculated from the object's width and the bar
> > scale factor (just like you did for points,
> > which can be moved freely - cool). Same for xy
> > graphs - the points could be *any* object in a
> > playfield. And possibly even points and vectors
> > could be unified - a point would just be a
> > vector of length 0? That might be not the best
> > idea, I don't know. How much more time do you
> > have in your project?
> > So adding a bar/point/vector would be just
> > dropping an object (any object) into the graph...
> > I like it, I think it's possibly a good idea (if
> > we manage to figure out a nice way of unifying
> > vectors and points... maybe different graphs for
> > each?), but it's quite different from what I
> > currently have and I'm not sure I'll be able to
> > make it in time for this release. Since this seems
> > like a big change I think adding these tools to
> > the Etoys release may not be such a good idea.
> > Maybe we should wait to hear the opinion of the
> > educators about this change and if they like it,
> > work on this for the next release.
> > I really like the idea of a graph as a
> > holder/playfield. It makes sense and it fits
> > existing mental models used in working with Etoys.
> > To my overly simplistic way of thinking a graph is
> > basically:
> > * a playfield with the grid visible (but not
> > turned on)
> > * A pair of number lines (hint, hint, nudge,
> > nudge, wink, wink ;)
> > * and scaling of X and Y
> > I think the point table and spreadsheet should also
> > "be" a holder/playfield.
> > There are issues with holder, is the way it does
> > auto-line-layout and "resize to
> > fit" SQ-731 and SQ-628 which if corrected along
> > the lines of SQ-730 would in my opinion make it a
> > lot easier to use a holder for spreadsheets, tables,
> > rows and columns. Basically providing the ability
> > to specify a fixed row and column width's and the
> > ability to add/delete a row and column I think would
> > do it.
> > As much as I would love having the graph in the next
> > release I think it would be better to wait until it
> > is more like a playfield/holder. Until then, I can
> > do my own graph the only challenge I have is making
> > the number line, in particular lining up labels is a
> > pain, as the x,y position of text varies and is not
> > in the center of the text.
> > The GSoC deadline is this monday and I didn't even
> > finish the seven items in my proposal. I will
> > still work on this after gsoc is over but I worked
> > very little in the PaintBox and I haven't even
> > touched the EtoyMaker. That's a bummer...
> > In the Northern Hemisphere (where everything is
> > right side up ;) we have a thing called "Indian
> > Summer" which is an expression given to a period of
> > sunny, warm weather in autumn in the Northern
> > Hemisphere, typically in late October or early
> > November. So you should have plenty of time ;)
> > Thanks for all your efforts they are appreciated and
> > will be used.
> > Stephen
> >etoys-dev mailing list
> >etoys-dev at squeakland.org
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