WMS rendering fails with descending color map entries
-----------------------------------------------------
Key: GEOS-4226
URL: http://jira.codehaus.org/browse/GEOS-4226
Project: GeoServer
Issue Type: Bug
Components: WMS
Affects Versions: 2.1-beta1, 2.0.2
Reporter: Torsten Heinen
Assignee: Andrea Aime
Attachments: descending_colormap_fail.log
When requesting a raster dataset with a color map style like this
<Name>Elevation</Name>
<Title>Elevation (in meters)</Title>
...
<ColorMap>
<ColorMapEntry color="#fafafa" quantity="5500.0" label="5500 m"/>
...
<ColorMapEntry color="#434a65" quantity="-500.0" label="-500 m"/>
<ColorMapEntry color="#000000" quantity="-32767.0" opacity="0.0"
label="Nodata"/>
</ColorMap>
the rendering fails with the following exception:
java.lang.IllegalArgumentException: Ranges [-\u221e..5,500] and
[-32,767..\u221e] overlap. See log file for details.
The same color map style works, if the entries are sorted in ascending order.
However, we need to have the getLegendGraphics request generate are legend with
the highest value on top.
(Also the title of the rule is not printed in the legend and we like to disable
the text below the legend, but with no success. Any hints?)
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