#2382: d.legend: integer map legends should not be flipped upside-down
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Reporter: neteler | Owner: hamish
Type: defect | Status: closed
Priority: normal | Milestone: 7.0.0
Component: Display | Version: svn-releasebranch70
Resolution: wontfix | Keywords: d.legend
Platform: All | Cpu: Unspecified
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Comment(by hamish):
> "smoothed" legend != "gradient" legend
Hi,
I was thinking a bit more about this, maybe a way around the ambiguity of
what kind of data a CELL map contains is for d.legend to test if the
`r.support units=` has been set and has a string length > 0, and if it
contains a value assume it is a continuous gradient map, and so smallest
value on the bottom.
I fear it moves a bit into 'too tricky for its own good' territory, the
existing help text is nicely concise, but apparently what to expect is not
obvious if you haven't read that. I guess since it talks about
"categorical" and not CELL maps, the text wouldn't have to change for a
continuous gradient CELL map? Seems a bit of a stretch & I don't want to
introduce more confusion..
{{{
Raster maps based on floating point values will
display smoothed, from greatest to smallest value,
while categorical raster maps will display in order,
from top to bottom. Horizontal legends will always
be smoothed. If the box is defined with inverted y-
values or an inverted range, the legend will auto-
matically flip. If this is not the desired result,
the -f flag may be used to flip it back.
}}}
messy!
Hamish
--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2382#comment:7>
GRASS GIS <http://grass.osgeo.org>
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