[glideplan_swproj] Re: [glideplan_swproj] Igc color scaling

  • From: Tomáš Zámečník <pulcik@xxxxxxxx>
  • To: glideplan_swproj@xxxxxxxxxxxxx
  • Date: Fri, 09 Mar 2012 10:02:19 +0100 (CET)

I would do it this way:
Consider all loaded flights, take the min and max from all and scale the 
colours to these global extremes.
It also means that if a new igc is opened (or any igc is closed), the scale 
must be recalculated and colours updated.
I think that the ramp should be linear.

T.

> ------------ Původní zpráva ------------
> Od: Kuba Marek <blue.cube@xxxxxxxxx>
> Předmět: [glideplan_swproj] Igc color scaling
> Datum: 08.3.2012 18:25:04
> ----------------------------------------
> Hi,
> I have UI design / usability question, mainly for Tom and Mr Wilkie::
>
> How should the IGC colors be scaled? For example if flights lowest point
> has altitude 200 m and highest point has altitude 1000m, then should
> the color gradient be scaled into the interval <200, 1000>, or should it
> be always <0, some_reasonably_high_value>?
>
> The first option makes better use of the limited resolution, but the
> second version has the advantage of showing more information.
>
> Or maybe making it non-linear could work too --
> something like 1  - (1 / (1+ altitude))
>
> The question also applies to most of the other quantities.
>
> What do you think?
>
> Kuba
>
>
>

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