NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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.

Re: [thredds] TDS WMS returns blank images

Hi John, Pauline,
I'm also getting blank images when loading the WMS capabilities version 1.3.0 document with Quantum GIS but it works with the version 1.1.1 of the WMS capabilities. 

Cheers!


John Maurer, IV wrote:

Hi Pauline,
Thanks for investigating. Then I will be hopeful that the problem is fixed when 
TDS WMS catches up with the latest ncWMS coordinate system code. FYI: I was 
getting the blank images when loading the WMS GetCapabilities URL from our TDS 
into Gaia 3 or Quantum GIS Open Source GIS packages:

http://www.thecarbonproject.com/gaia.php
http://www.qgis.org

Cheers,
John
---
John Maurer
HiOOS Data System Administrator
School of Ocean and Earth Science and Technology
University of Hawaiʻi at Mānoa
808.956.0227
http://www2.hawaii.edu/~jmaurer



----- Original Message -----
From: Pauline Mak <pauline.mak@xxxxxxxxxxx>
Date: Saturday, August 29, 2009 9:35 pm
Subject: Re: [thredds] TDS WMS returns blank images
To: "John Maurer, IV" <jmaurer@xxxxxxxxxx>
Cc: THREDDS THREDDS <thredds@xxxxxxxxxxxxxxxx>


Hi John,
I've tried loading your file on my local instance of TDS, and it's throwing an error: 

---
2009-08-30T17:05:42.686 +1000 [ 16210][ 27] DEBUG - uk.ac.rdg.resc.ncwms.datareader.DefaultDataReader - grid name: vbar has name:false 2009-08-30T17:05:42.686 +1000 [ 16210][ 27] DEBUG - uk.ac.rdg.resc.ncwms.datareader.DefaultDataReader - grid name: DV_avg1 has name:false 2009-08-30T17:05:42.686 +1000 [ 16210][ 27] DEBUG - uk.ac.rdg.resc.ncwms.datareader.DefaultDataReader - grid name: DV_avg2 has name:false 2009-08-30T17:05:42.689 +1000 [ 16213][ 27] INFO - thredds.server.wms.WMSController - Request Completed - 500 - -1 - 
1032
java.lang.IllegalArgumentException: Cannot yet deal with coordinate axes of >1 dimension 
---
I think the TDS WMS code is lagging behind ncWMS (as I can't seem to find this error message anywhere in latest revision). I am hoping if the new coordinate system code is ported across, then it will work... I am, however, curious as to how to got to the blank image - I can't even load the GetCapabilities XML! 

Cheers,

-Pauline.

John Maurer, IV wrote:
Sorry, our TDS has been in a state of flux and the URL changed
slightly 
yesterday afternoon. Try this link instead:
http://oos.soest.hawaii.edu/thredds/catalog/hioos/roms_forec/files/catalog.html?dataset=hioos/roms_forec/files/hiig_forec_20090828.nc>
You will find the following access methods listed: OPeNDAP,
HTTP, WCS, 
WMS, and NetCDFSubset. Thanks again for giving this a look for me!
Aloha,
John Maurer

----- Original Message -----
From: Pauline Mak <pauline.mak@xxxxxxxxxxx>
Date: Friday, August 28, 2009 7:25 pm
Subject: Re: [thredds] TDS WMS returns blank images
To: "John Maurer, IV" <jmaurer@xxxxxxxxxx>

 > Hi John,
 >
 > I can't seem to find a direct download link... Is this
 > intentional?
> Would you be able to email me a file if this cannot be 
enabled?>  >

 > Thanks,
 >
 > -Pauline.
 >
 > John Maurer, IV wrote:
> > Thanks, Pauline. Here is an example GetCapabilities 
request>  > for a ROMS

 > > ocean model over Hawaii, which includes temperature (temp)
 > values
> > ranging ~0.9-27 C and salinity (salt) values ranging 
~34-35:

 > >
 > >
>
http://oos.soest.hawaii.edu/thredds/wms/hioos/roms_forec/forecast/HI-ROMS_Forecast_Model_Run_Collection_ConstantForecast_2009-08-04T00:00:00Z?service=WMS&version=1.3.0&request=GetCapabilities 
 > >
> 
<http://oos.soest.hawaii.edu/thredds/wms/hioos/roms_forec/forecast/HI-ROMS_Forecast_Model_Run_Collection_ConstantForecast_2009-08-04T00:00:00Z?service=WMS&version=1.3.0&request=GetCapabilities>

 > >
 > > The relevant TDS links for the above request at:
 > >
 > >    1.
>
http://oos.soest.hawaii.edu/thredds/catalog/hioos/roms_forec/catalog.html>
2. 
http://oos.soest.hawaii.edu/thredds/catalog/hioos/roms_forec/forecast/catalog.html>  
> >    3.
> 
http://oos.soest.hawaii.edu/thredds/catalog/hioos/roms_forec/forecast/catalog.html?dataset=hioos/roms_forec/forecast/HI-ROMS_Forecast_Model_Run_Collection_ConstantForecast_2009-08-04T00:00:00Z

 > >
 > > Thanks for giving this a look.
 > > ---
 > > John Maurer
 > > HiOOS Data System Administrator
 > > School of Ocean and Earth Science and Technology
 > > University of Hawaiʻi at Mānoa
 > > 808.956.0227
 > > http://www2.hawaii.edu/~jmaurer
 > >
 > >
 > >
 > > ----- Original Message -----
 > > From: Pauline Mak <pauline.mak@xxxxxxxxxxx>
 > > Date: Friday, August 28, 2009 11:07 am
 > > Subject: Re: [thredds] TDS WMS returns blank images
 > > To: "John Maurer, IV" <jmaurer@xxxxxxxxxx>
 > > Cc: thredds <thredds@xxxxxxxxxxxxxxxx>
 > >
 > >  > Hi John,
 > >  >
> > > Can I download a file from somewhere? 
I would

 > like to take
 > >  > a look at
 > >  > the problem...
 > >  >
 > >  > Cheers,
 > >  >
 > >  > -Pauline.
 > >  >
 > >  > John Maurer, IV wrote:
 > >  > > Aloha TDS Community,
> > > > When testing our TDS WMS results in 
various clients,

 > I find
 > >  > that the
> > > > images are always blank (all white) 
regardless of what

 > >  > variable or
> > > > palette I've tried thus far. I've only 
been using

 > the default
 > >  > palettes
> > > > that come with TDS. My suspicion is that 
the TDS WMS

 > is not
 > >  > configured
> > > > by default to scale the data values of the 
variable>  > from 0-

 > >  > 255?, and
> > > > that the default palettes are therefore 
inapplicable>  > to my

 > >  > data as a
 > >  > > result. For instance, if my variable has values
 > ranging from -
 > >  > 1.0 to
> > > > +1.0, then a palette defining colors that 
expect values

 > >  > ranging 0-255
 > >  > > won't help.
 > >  > >
> > > > If this is true, then I can define my own 
palette>  > and specify

 > >  > this in
> > > > threddsConfig.xml. But is there a way to 
set the

 > palette on a
 > >  > dataset
> > > > and/or variable basis?, or will this 
palette appear

 > for all
 > >  > datasets
 > >  > > served through my TDS?
 > >  > >
> > > > Lastly, is there some way to tell the TDS 
WMS to

 > scale the
 > >  > values to
> > > > 0-255 in ogcMetaXML?, and can you specify 
what range

 > of values
 > >  > to scale
> > > > to 0-255 (i.e. leaving out a no-data value 
like -

 > 999, etc.)?
 > >  > >
 > >  > > Mahalo!,
 > >  > > John
 > >  > > ---
 > >  > > John Maurer
 > >  > > HiOOS Data System Administrator
 > >  > > School of Ocean and Earth Science and Technology
 > >  > > University of Hawaiʻi at Mānoa
 > >  > > 808.956.0227
 > >  > > http://www2.hawaii.edu/~jmaurer
 > >  > <http://www2.hawaii.edu/%7Ejmaurer>>
 > >  > >
 > >  > > -------------------------------------------

----------

 > ----------
 > >  > ---------
 > >  > >
 > >  > > _______________________________________________
 > >  > > thredds mailing list
 > >  > > thredds@xxxxxxxxxxxxxxxx
> > > > For list information or to 
unsubscribe,  visit:

 > >  > http://www.unidata.ucar.edu/mailing_lists/
 > >  >
 > >  > --
 > >  > Pauline Mak
 > >  >
 > >  > Assistant Manager, ARCS Data Services
 > >  > Ph:  +61 3 6226 7518
 > >  > Mob: +61 411 638 196
 > >  > Email: pauline.mak@xxxxxxxxxxx
 > >  > Jabber: pauline.mak@xxxxxxxxxxx
 > >  > http://www.arcs.org.au/
 > >  >
 > >  > TPAC
 > >  > Email: pauline.mak@xxxxxxxxxxx
 > >  > http://www.tpac.org.au/
 > >  >
 > >  >
 > >  >
 > >  >
 >
 > --
 > Pauline Mak
 >
 > Assistant Manager, ARCS Data Services
 > Ph:  +61 3 6226 7518
 > Mob: +61 411 638 196
 > Email: pauline.mak@xxxxxxxxxxx
 > Jabber: pauline.mak@xxxxxxxxxxx
 > Calendar: http://tinyurl.com/pmak-arcs-calendar
 > http://www.arcs.org.au/
 >
 > TPAC
 > Email: pauline.mak@xxxxxxxxxxx
 > http://www.tpac.org.au/
 >
 >
 >
 >

--
Pauline Mak

Assistant Manager, ARCS Data Services
Ph:  +61 3 6226 7518
Mob: +61 411 638 196
Email: pauline.mak@xxxxxxxxxxx
Jabber: pauline.mak@xxxxxxxxxxx
Calendar: http://tinyurl.com/pmak-arcs-calendar
http://www.arcs.org.au/

TPAC
Email: pauline.mak@xxxxxxxxxxx
http://www.tpac.org.au/
------------------------------------------------------------------------ 

_______________________________________________
thredds mailing list
thredds@xxxxxxxxxxxxxxxx
For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
  • 2009 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the thredds archives: