Elevation colour bands in Aven

[Mark Shinwell]

On Mon, Oct 22, 2007 at 12:05:21PM +0100, Paul Fretwell wrote:
> I am trying to plot all the caves over a wide area (entire Matienzo 
> expedition area) in Aven, so that I can generate overlays for Googlemaps. 
> One thing that is a problem with this is that elevation detail is 
> difficult to determine by colour due to the wide elevation range of the 
> caves (615m to 40m). What appears to happen is most of the caves are 
> pushed into the blue banding. Looking at the colour bar in Aven, it 
> appears that the blue zone takes up a lot of the elevation range, as does 
> the red zone. In the middle the bands for Orange, yellow, green are fairly 
> narrow. Would it be possible to extend the colour banding to include 
> purple at the bottom, and lessen the bias of the red and blue bands to 
> give better visual differentiation of passages at elevations in the middle 
> of the range?

There was some discussion on the Cambridge expedition this year about
allowing the divisions on the depth bar to be user-selectable: this would
give better behaviour in situations such as your own.  I don't believe
there has been any implementation work on this yet, though.

Mark