Fwd: Re: Timeseries WMS

Steve Lime Steve.Lime at DNR.STATE.MN.US
Mon Mar 26 13:59:28 EDT 2007


A thread I was forwarded that may be up someone's alley...

Steve

>>> On 3/26/2007 at 10:29 AM, in message <4607E6BD.6010608 at usgs.gov>, Doug Nebert
<ddnebert at usgs.gov> wrote:
> Falke, Stefan R wrote:
>> Doug,
>> Sounds like a terrific dataset. A year or so ago, I created a couple of
>> quick and dirty WMS animations in WorldWind. I think you could do it
>> also in GoogleEarth. We've not used MN Mapserver for animation although
>> it could be done without much trouble, I would think, and it wouldn't be
>> surprising if someone has scripting code to do it.
>> 
> 
> Google Earth is going to be problematic in that everything is a 
> cylindrical projection of one sort, and the polar regions get pretty odd 
> looking with the resampling, stretching and unstretching being done. 
> There does not seem to be a general orthographic projection (or polar 
> stereographic) option with GE, though you'd think there ought to be from 
> any nadir or off-nadir view of the planet, it's the logical visual field 
> when zooming in at planetary scale! This would be a nice feature in 
> recognition of the Intl Polar Year just kicking off...
> 
> So I have two challenges:
> 
> What is the WMS technique to serving WMS animations and how might this 
> be supported by mapserver?
> 
> For visualization by viewers like GE, is/can an orthographic or 
> sterographic data view be supported natively? Certainly in WMS clients 
> this is not a problem, but the 'globe' views are different.
> 
> Doug.
> 
> 
>> -Stefan  
>> 
>> -----Original Message-----
>> From: Doug Nebert [mailto:ddnebert at usgs.gov] 
>> Sent: Tuesday, March 20, 2007 10:53 AM
>> To: Falke, Stefan R; John Evans
>> Subject: Timeseries WMS
>> 
>> I have access to a wonderful 8-year monthly time series of polar ice
>> thickness and circulation prepared by USGS and BYU researchers with JPL
>> funding. It shows that ice is thinning and being flushed from the Arctic
>> Ocean in a dramatic way... It would be useful to get this served as a
>> time-series WMS such that an animation can be composed with the right
>> client.
>> 
>> 1. Do you know what is required to configure MN mapserver to provide
>> such a time series?
>> 
>> 2. What clients are you aware of that would allow display of such data
>> as an animation with other WMS services?
>> 
>> Doug.
>> --
>> Douglas D. Nebert
>> Geospatial Data Clearinghouse Coordinator, Information Architect
>> FGDC/GSDI Secretariat   Phone: +1 703 648 4151  Fax: +1 703 648-5755
>> 
> 



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