[Thread Prev][Thread Next][Index]

Re: Can't generate output for dataset with single-point time axis

Hi Joe,

I gave this a quick try and it worked for me. You might try omitting the time axis from the XML (since there is only one data point) as there was an earlier bug with one point time axes that might be in the release of LAS that you are using.

At 03:48 PM 11/19/2002 -0800, Joe Wielgosz wrote:

I am investigating how to get GrADS running behind LAS.

I loaded a dataset on my test system with only a single time to see what
kind of XML the LAS UI would generate. However there is a problem - the
time value being sent in the XML request is invalid.

This is the dataset:


The addXml script generates the following:

doc="" name="BATS cover classification interpolated to 1x1 degree">
   <vegclass name="landcover class ">
    <link match="/lasdata/grids/vegclass_bats_time_lat_lon_grid"/>
  <link match="/lasdata/axes/vegclass_bats_time"/>
  <link match="/lasdata/axes/vegclass_bats_lat"/>
  <link match="/lasdata/axes/vegclass_bats_lon"/>
 <vegclass_bats_time units="days" type="t">
  <v>1982-Jul-01 00:00:00
 <vegclass_bats_lat units="degrees_north" type="y">
  <arange start="-59.5" step="1" size="150"/>
 <vegclass_bats_lon units="degrees_east" type="x">
  <arange start="-179.5" step="1" size="360"/>

but when I generate a request, it comes out with the time set to Jan-16,
like this:

XML: <?xml version="1.0"?><lasRequest package="" href="file:las.xml"
><link match="/lasdata/operations/grads" /><properties ><ferret ><size
>.5</size><format >grads</format></ferret></properties><args ><link
match="/lasdata/datasets/vegclass_bats/variables/vegclass" /><region
><range low="18.0" type="x" high="70.0" /><range low="-1.0" type="y"
high="66.0" /><point v="16-Jan" type="t" /></region></args></lasRequest>
CACHE: true

And even when I try to do a ferret plot i get this message:

Illegal Limits

Sorry ...

    There are no data available at 16-JAN      00:00
    The data begin at 30-JUN-1982 12:00 and continue to 01-JUL-1982

Please try again with a time that lies within this range.

I am unable to find where this time value is getting set in the servlet
code. Please help..


- Joe

Joe Wielgosz / joew@cola.iges.org
Center for Ocean-Land-Atmosphere Studies (COLA)
Institute for Global Environment and Society (IGES)

[Thread Prev][Thread Next][Index]

Dept of Commerce / NOAA / OAR / PMEL / TMAP
Contact Us | Privacy Policy | Disclaimer | Accessibility Statement