NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.

To learn about what's going on, see About the Archive Site.

[thredds] _FillValue ignored in WMS

Hi all,
I've just downloaded the latest version of TDS and tried out WMS on some datasets. It looks like the TDS implementation of the WMS server is ignoring the _FillValue attribute...? 

I've tried this on ncWMS-1.0RC2 and it was able to generate a correct image.

I used the same KVP (except for LAYERS!) for both ncWMS and TDS:

http://localhost:8080/ncWMS-1.0RC2/wms?LAYERS=bomTest%2Ftemp&ELEVATION=-5&TIME=2010-07-07T12%3A00%3A00.000Z&TRANSPARENT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A4326&NUMCOLORBANDS=254&LOGSCALE=false&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&EXCEPTIONS=XML&FORMAT=image%2Fpng&BBOX=0,-90,180,90&WIDTH=256&HEIGHT=256

http://localhost:8080/thredds/wms/testAll/ocean_an_20100707_temp.nc?LAYERS=temp&ELEVATION=-5&TIME=2010-07-07T12%3A00%3A00.000Z&TRANSPARENT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A4326&NUMCOLORBANDS=254&LOGSCALE=false&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&EXCEPTIONS=XML&FORMAT=image%2Fpng&BBOX=0,-90,180,90&WIDTH=256&HEIGHT=256
And got the attached images (tds.png is generated from TDS, wms_ncwms.png is generated by ncWMS). 

I am currently using:

Version 4.2.20100607.1833 - 20100607.1833

With Java version:

java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
We had observe the same behaviour on another TDS server too, although, I'm not sure what OS it's running on, or what the version of Java it's using.
I think at some point in time, I had a version of 4.2 that worked with _FillValues correctly, but I no longer have access to that version anymore to do a comparison... 

Cheers,

-Pauline.

--
Pauline Mak
AODN-DO
Ph: (03) 6226 8586
Mob: 0411 638 196
Email: pauline.mak@xxxxxxxxxxx

Attachment: wms_ncwms.png
Description: PNG image

Attachment: tds.png
Description: PNG image

  • 2010 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the thredds archives: