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I would like to develop a simple slider for exploring a wide range of intervals on the real line. Is it possible to get the MinimalSize of IntervalSlider to work below .001?

IntervalSlider[{3, 7}, {0, 10}, ImageSize -> 600,  MinIntervalSize -> .0001, Appearance -> "Labeled"]

interval slider

This limitation is not imposed on the HorizontalGauge:

HorizontalGauge[42, {0, .000000000000000000001}, ImageSize -> 800, BaseStyle -> 14]

gauge

I may be able to get around this limitation by using a drop down list to set the order of magnitude I wish the gauge to operate in. But first I want to know about getting around the limited of the control.

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    $\begingroup$ If you drag with Alt pressed it is more sensitive, with Alt+Shift even more. Not sure what you are exactly after, though. $\endgroup$ – Kuba♦ Feb 21 '15 at 23:18
  • $\begingroup$ Basically, I want students to be able to explore a number line by zooming in or out at will. I plan to have multiple Horizontal Gauges on display at once. But I am still thinking about the functionality, the operations I want students to be able to apply. $\endgroup$ – DavidC Feb 22 '15 at 1:14
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Are there really sufficiently many assignable pixel locations such that you can drag a Controller to such a resolution? Would you be satisfied if the range were small enough that the MinIntervalSize you seek could be rendered? After all, this will work:

IntervalSlider[{.003, .007}, {0., .010}, ImageSize -> 600, 
 MinIntervalSize -> .00000001, Appearance -> "Labeled"]
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  • $\begingroup$ Good point. I hadn't tried adjusting the interval size! $\endgroup$ – DavidC Feb 21 '15 at 23:16

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