[Qgis-developer] Raster min/max load

Nathan Woodrow madmanwoo at gmail.com
Sat Jul 28 05:14:18 PDT 2012


I would vote for this one http://goo.gl/IfZbf as, like you said,
required less thinking on the users part.  It is also more explicit
then the second one as the user isn't sure what unticking "Current
Extent" really means.

- Nathan

On Sat, Jul 28, 2012 at 10:00 PM, Radim Blazek <radim.blazek at gmail.com> wrote:
> Hi,
> I am working on 2-98% cumulative pixel count cut (raster stretch
> min/max, stdev alternative). Adding that option into raster
> properties, I found the "Load min/max values" (http://goo.gl/xl2Ti)
> group a bit confusing, it was mixing method, extent and accuracy, all
> in one group:
>   * Estimate - accuracy
>   * Actual - accuracy
>   * CurrentExtent - extent
>   * Standard deviation - method
>
> Following QGIS HIG "Group related elements using group boxes" I added
> groups for extent and accuracy (logically, there should be another one
> for method, but that would result in another group header just under
> "Load min/max values"): http://goo.gl/IfZbf
> From that widget it is clear I believe, what each checkbox means and
> how do they work together. It is crowded, however.
>
> I simplified it removing the groups and checkboxes for defaults:
> http://goo.gl/4XmpR
> It looks better but does not follow HIG and user must think more to
> imagine what are opposites of "Current extent" and "Estimate".
>
> Which one is preferred? Do you have better idea?
>
> With 3 parameters as input, it is also impossible to have loading
> min/max as an action in histogram tab (commented for now) until we add
> all combinations.
>
> Radim
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