[Xastir-dev] Muchos Grassias

[Gerry Creager n5jxs]

Over the next couple of months, check out 
http://mesonet.tamu.edu/poly2.tamu.edu or 
http://mesonet.tamu.edu/poly3.tamu.edu

There's some changes coming in the next 12 months in SVR, TOR and FFW 
warnings.  We're (NWS, plus one university academic type) working on a 
plan to start issuing warnings as smaller areas, specifically areas of 
maximum impact.  This is the "Polygon Warning" initiative.

For those interested in Open Source thingies, NWS had been using ESRI 
(proprietary) software.  I was asked if I was interested in playing, so 
I could provide some background on using the Minnesota Mapserver software...

Another change coming.  I've been experimenting with providing the US 
Radar data using the Open geospatial Consortium's Web Map Service.  I 
should have figured this out LONG ago.  What this means is anyone who 
can determine what the bounding corners of the area they're interested 
in can make the request, and modify their own .geo files themselves.

http://mesonet.tamu.edu/cgi-bin/radar?SERVICE=WMS&VERSION=1.1.1&REQUEST=getmap&layers=radar&BBOX=-80.000,46.000,-70.000,36.000&HEIGHT=1000&WIDTH=1000&FORMAT=image/png

snags a piece of the overall png image, as a 1000x1000 pixel image. 
It's bounded by 46.0N, 80.0W (-80.0); 36.0N 70.0W (-70.0).  Thus the 
.geo becomes:
URL 
http://mesonet.tamu.edu/cgi-bin/radar?SERVICE=WMS&VERSION=1.1.1&REQUEST=getmap&layers=radar&BBOX=-80.000,46.000,-70.000,36.000&HEIGHT=1000&WIDTH=1000&FORMAT=image/png
TIEPOINT	0	0	-80.000		46.000
TIEPOINT	1000	1000	-70.000		36.000
IMAGESIZE 1000 1000
REFRESH 600
TRANSPARENT 0x0ffffffff



Note:  Looks like the URL wrapped... that's a nit that can be fixed...

So: anyone can construct the URL and the .geo.  Where I want to go now 
is to write a script that'll take the user's parameters, construct the 
.geo file and allow them to install it (or it can be installed on the fly).

Thoughts?

Oh, and there's a site available with the Polygon warnings in WFS 
(www.opengeospatial.org) form, too...

Gerry
Jerry Chamberlin wrote:
> THanks for the new weather alertt code. I have been up 2.5 hrs and have never
> seen screens move as fast, many long pauses seem to be gone.
> 
> Bring on the tornados.
> 
> The Net Lab year 2000 and beyond Internet Education is Science
> http://www.netlab.org
> WA0JRJ - Jerry
> used to be ICQ 6408731
> used to be AIM PappyJerry
> 
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> Xastir-dev at xastir.org
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020
FAX:  979.847.8578 Pager:  979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843