Re: Update on ThresholdAdjuster.java

Posted by Wayne Rasband-2 on Sep 30, 2017; 5:24am
URL: http://imagej.273.s1.nabble.com/Update-on-ThresholdAdjuster-java-tp5019444p5019465.html

> On Sep 27, 2017, at 8:05 AM, Philippe CARL <[hidden email]> wrote:
>
> Dear all (probably mostly Wayne)
>
> Under the following link:
>
> http://punias.free.fr/ImageJ/ThresholdAdjuster.java
>
> I have put a modified version of the ThresholdAdjuster.java file where I
> added MouseWheelListener features to the minSlider and maxSlider.

These modifications are in the latest ImageJ daily build (1.51r13).

> The reason why I did this, is that it is sometimes quite difficult to
> concentrate (at least for a starting to be old man like I very unfortunately
> do) on the picture threshold actions while simultaneously playing with the
> sliders via mouse button actions.
>
> With this new code, you just click once on a given slider (minSlider or
> maxSlider) and then just forget it by only using the mouse wheel to increase
> or decrease its value and thus just concentrate on the given threshold
> changes within the given picture.
>
> I’m also thinking to add as well the left/right arrow keys for making the
> same actions but would first like to get your opinion on this.

Arrow key support is a good idea, especially on Macs, where scrollbars are missing buttons for incrementing/decrementing by one.

> Besides that, I have another question (but maybe it is very stupid) about
> the thresholder window (while I’m working on it).
>
> Indeed why is there a “Set” window for setting the Lower and Upper Threshold
> Level?
>
> Wouldn’t it be better or easier to simply transform the indicator values
> next to the minSlider or maxSlider to TextFields where the user could then
> just simply write the new wished values? (and if there is no objections on
> this I will write the needed code…)

It would probably be better to display the min and max values in editable text fields.

-wayne

> Looking forward for your comments and/or critics on all this I wish you a
> nice day (I hope as well sunny for you).
>
> My best regards,
>
> Philippe
>
>
>
> Philippe CARL
>
> Laboratoire de Biophotonique et Pharmacologie
>
> UMR 7213 CNRS - Université de Strasbourg
>
> Faculté de Pharmacie
>
> 74 route du Rhin
>
> 67401 ILLKIRCH
>
> Tel : [phone]

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