Re: AddeGridReader - reducing grid resloution

Hi all:

I think, I found a way around - by appending a key word "skip=2" ( for skipping every other row/col) to the query string.

Thanks

Mey Manickam

M.Manickam@xxxxxxxxxx wrote:

Hi all:

I am using AddeGridReader to read a model grid. I want to reduce the grid resolution. I tried using subsect key word in the query string to the adde server.
For example passing some thing like:
Adde query...: adde://rtds3.bom.gov.au/grid?group=RTDB2&descr=GASP&lev=250&par=U V&lat=-30.0 30.0&lon=70.0 170.0&frange=0 180000 60000&num=ALL&debug=TRUE&subsect=-30.0 30.0 70.0 170.0 2 2

Here the subsect keyword defines a subsected region of:
southern lat: -30.0, nlat: 30.0, eastern lon: 70.0, wlon: 170.0, row reduction interval:2 and a column reduction interval:2

The debug output reads like:
host from URL: rtds3.bom.gov.au
file from URL: /grid?group=RTDB2&descr=GASP&lev=250&par=U V&lat=-30.0 30.0&lon=70.0 170.0&frange=0 180000 60000&num=ALL&debug=TRUE&subsect=-30.0 30.0 70.0 170.0 2 2
Service = gget
uCmd=group=rtdb2&descr=gasp&lev=250&par=u v&lat=-30.0 30.0&lon=70.0 170.0&frange=0 180000 60000&num=all&debug=true&subsect=-30.0 30.0 70.0 170.0 2 2
subset=-30.0 30.0 -170.0 -70.0 1 1 LATLON
RTDB2 GASP 999999 LEV=250 PARM=U V FRANGE=0 180000 60000 NUM=ALL TRACE=0 SUBSET=-30.0 30.0 -170.0 -70.0 1 1 LATLON VERSION=A

I am not getting the grid resolution I want and the values requested appeared to be overwritten with the default values of (1 and 1).

Should I be using any other keyword other than "subsect" ?

Thanks.

Mey Manickam