[GRASS-dev] d.histogram: x axis ticks labels fixed

[Hamish]

Markus Neteler wrote:
> the x axis ticks in d.histogram are often completey messed
> up, especially for FP maps with range 0..1.0

bug report for this:
  http://intevation.de/rt/webrt?serial_num=1977
(note Paul had posted a patch there some months ago)

> I have hacked display/d.histogram/bar.c
> -> line 116 etc
> to get readable output for most FP maps (before there wasn't).

I've done a quick test and it looks good. nice!
Resizing the xmon window recalculates the tick placement, if you want
to do a lot of testing quickly.

> I have also added a fix (line 321) to enable FP number output for
> small range maps, e.g. (NC OSGeo data set):

If I convert elevation.dem to a 0.0-1.0 FP map, the x axis tick labels
are all still "0". :(

#spearfish
r.mapcalc elev.norm="(elevation.dem - 1066.) / (1840-1066.)"
d.histogram elev.norm

Before we spend too much more time on this module, were there plans to
reimplement the module as a wxPython program using one of the python
plotting libs?

'd.histogram -q' seems to be broken. (was a quiet flag removed from
r.stats?)


cheers,
Hamish


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