Difference between revisions of "Comments:Slider Tool"
From GeoGebra Manual
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# Place a text object with the content <code>"c = " + c</code> at the old label's position | # Place a text object with the content <code>"c = " + c</code> at the old label's position | ||
Such a slider works almost exactly like the normal one (exception: the label isn't moving, that needs some additional work), so your users probably won't notice. | Such a slider works almost exactly like the normal one (exception: the label isn't moving, that needs some additional work), so your users probably won't notice. | ||
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Revision as of 18:33, 19 December 2010
Tips
Flexible Bounds
A normal slider can just be defined for a constant interval, i.e. the interval can't be influenced by worksheet variables. But sometimes it's necessary to create a slider for the user with flexible bounds, let's say from a to b. That's not possible directly, but one can achieve a similar effect:
- Create a slider t in the interval [0, 1]
- Use interpolation to calculate the "real value" c (in the interval [a, b]):
c = a + (b - a) * t
- Hide the label of the slider
- Place a text object with the content
"c = " + cat the old label's position
Such a slider works almost exactly like the normal one (exception: the label isn't moving, that needs some additional work), so your users probably won't notice.
