Geometer's Sketchpad: How do I put a grid over an image?

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Using an image as a background for a function graph in Geometer's Sketchpad (GSP) is possible, allowing users to superimpose grids over maps. A specific blog post demonstrates this functionality effectively. Users have noted issues with cutting and pasting on older versions of GSP, particularly version 4.06, while version 4.07 works without problems. The feature for using images as backgrounds likely existed in earlier versions, possibly starting from 4.03.
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Is it possible to use an image as a background to a function graph in Geometer's Sketchpad, so that I could superimpose a grid over a map? Does anybody have an alternative suggestion if that's not possible in GSP?

Thanks,

-tubegeek
 
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Yes, it is pretty straightforward - see my post at mathfest.blogspot.com/2008/01/strauss-sketchpad-photos-quadratics-and.html
 
rossisen said:
Yes, it is pretty straightforward - see my post at mathfest.blogspot.com/2008/01/strauss-sketchpad-photos-quadratics-and.html

Thanks for the link, great demo.

For some reason cutting and pasting wasn't working for me on the machines at school - do you know if that is a recently added feature? Because the machines at school run GSP 4.06 and I have 4.07 at home (which did the job fine.)

Hmm. I'll have to try harder on it at school now that I know I SHOULD be able to get it to work.



- tubegeek
 
I would guess that it was in 4.03, at least.
 
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