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Re: [idvusers] ISL spatial subsetting

Just a correction:

On 3/23/11 11:28 AM, Don Murray wrote:
Tomorrow's (Thursday, 3/24/2011) nightly IDV build will support the
following attributes on <datasource> and <display> tags:

stridex = the X skip factor (stride)
stridey = the Y skip factor
stridez = the Z skip factor
bbox = the geographic bounding box (N,W,S,E)

For example:

<isl>
<datasource

url="dods://motherlode.ucar.edu:8080/thredds/dodsC/casestudies/idvtest/grids/small_ruc_grid.nc"
stridex="1" stridey="2" stridez="1" bbox="40,-113,20,-98"/>
</isl>


should be:

<isl>
 <datasource


url="dods://motherlode.ucar.edu:8080/thredds/dodsC/casestudies/idvtest/grids/small_ruc_grid.nc"
 stridex="2" stridey="3" stridez="2" bbox="40,-113,20,-98"/>
</isl>
>
would select every other X gridpoint, every 3rd Y gridpoint,
every other level and data between 40N and 20N and 113W and 98W.

Stride values are:

0 - undefined
1 - all points
2 - every other point
3 - every thrid point
etc.

Sorry for the confusion.

Don
--
Don Murray
NOAA/ESRL/PSD and CIRES
303-497-3596
http://www.esrl.noaa.gov/psd/people/don.murray/



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