Hi Rafa,
Quoting rafael grompone von gioi <[email protected]>:
Hi everyone,
I have a minor comment about the use of sliders on demos.
I made some experiments of Gaussian filtering with the
demo of following article:
"A Survey of Gaussian Convolution Algorithms"
Pascal Getreuer
http://www.ipol.im/pub/art/2013/87/
I finally downloaded the code and
compiled and made the experiments. But I spent
more time than necessarily. In the same way I can
set a value on the text box like 0.56789 that cannot be
set with the slider (I could set 0.5 or 0.6), it would be
nice to be able also to set 20, even if it out the slider
range.
Well, we can change the step of the slider to any step we need.
In this case, it's configured to 0.1, but it could be 0.01, 0.001, or
whatever we need.
I think we should not change the default behaviour of the sliders to
allow values over its maximum, for several reasons:
- It's a restriction that is chosen by the author of the demo, and
thus it's supposed to produce results that make sense.
- It's the behaviour that users expect for these kind of controls.
Changing the maximum of the slider depending on the value of the
textbox would be really confusing for the users, that are used to the
way such controls respond. It'd be counterintuitive.
Of course, this is probably not a problem of this
particular demo but of the way these sliders and
their text boxes are set. Is there any simple solution?
For the step of the slider, yes: we just need to change it.
To change the behaviour of the control and reconfigure
programmatically its maximum: it's possible to do it with some
javascript lines, but I don't think it's a good idea at all.
Best,
Miguel
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