Question about adding thumbnails and snapshots to Wolfram Demonstration.
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From: David Carraher on 8 Aug 2010 07:20 Hi, For some reason, the thumbnails and snapshots in a Demonstration I just made change after I set them the way I want them to appear on Demonstrations.Wolfram.com. More specifically... I can make independent adjustments in snapshots, e.g., select different tabs for different snapshots. But these adjustments are not retained when the file is uploaded from my computer to my demonstrations area. If I click on a button as part of the adjustment, all the other snapshots update so as to look be working with the same data from the currently active snapshot. This makes it impossible to display different fractions in different snapshots. I suspect that the code in the demo reinitializes when uploaded to the demonstration area. And that it reinitializes each time I click on the New button (in the demo) to work with a new fraction. The following code runs from the initialization section of the demonstration when the New button is clicked. toM["NewTarget", lev_] := Module[{minLevels = 2, maxLevels = 12, minMoves = 3, maxMoves = 12, num, den}, (s = 0; m = I; {num, den} = {RandomInteger[{1, lev}], RandomInteger[{1, lev}]}; While[ Length[ContinuedFraction[num/den]] > maxLevels Or Length[ContinuedFraction[num/den]] < minLevels Or M[toM[num/den], "nMoves"] > maxMoves Or M[toM[num/den], "nMoves"] < minMoves, {num, den} = {RandomInteger[{1, lev}], RandomInteger[{1, lev}]}]; toM[num/den])]; I can send the whole demo source code to anyone who is willing to give it a look. It is about 300 lines long. thanks, david |