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Subject: Re: [emergency] CAP Visualization (was RE: CAP Developers' Forum...)
Kwasi,
Sounds like a nice application - I'm curious as to which CAP fields
you use to filter messages of interest. For example, did you get
anywhere trying to filter on the <event>, or did you fall back on
a set of system-specific <eventCode> values?
TIA,
-jeff
On Wednesday, May 19, 2004, at 03:47 PM, Speede, Kwasi wrote:
> Kon,
>
> We are implementing simple GIS capabilities here at Anteon. In
> particular,
> we use Oracle Spatial on the backend to produce map views for the area
> impacted by the broadcast incident. Oracle Spatial will convert the
> polygon
> or circle Lat/Long data into a map. I am not sure how sophisticated
> your
> application scenario is, ours is relatively straightforward. We use
> Oracle
> to convert the Lat/Longs into clickable maps and State/County codes.
> Our
> application code then generates census data reports that present
> demographics about the affected geographic region and estimate the
> potential
> impacts to people and structures.
>
> We've built a CAP broker in Oracle OC4J 10G. The broker parses the CAP
> broadcasts to identify messages relevant to our customer (FEMA)
> business
> processes. We store the message in Oracle XML DB with a Receiver Method
> (JMS/Message Driven Bean) and populate our incident software with
> relevant
> data from the message content. The J2EE enterprise application
> executes the
> Oracle Mapviewer component to generate the map display from the Oracle
> Spatial db. When the broker identifies an appropriate message,
> notification
> methods are executed that deliver email, mobile phone and PDA messages
> to
> subscribers. Subscribers can then access their various applications to
> view
> the incident event data.
>
> Kwasi
>
> -----Original Message-----
> From: Jeff Kyser [mailto:ktrails@comcast.net]
> Sent: Wednesday, May 19, 2004 4:32 PM
> To: emergency@lists.oasis-open.org
> Subject: Re: [emergency] CAP Visualization (was RE: CAP Developers'
> Forum...)
>
> Warning Systems also displayed polygons representing
> the plumes from chemical disasters - the messages were
> generated by other CAP providers.
>
> We adapted some code we had used to display storm
> cells in a previous application, and displayed the plumes
> instead.
>
> We used the Pepperwhite mapping software in a VB
> environment. Well, actually, the map application was VB,
> and the CAP parser / plume broadcaster was Java.
>
> -jeff kyser
>
> On Wednesday, May 19, 2004, at 03:28 PM, Art Botterell wrote:
>
>> Kon -
>>
>> The idea of visualizing aggregate CAP traffic is an interesting one.
>> The <references> and <incidents> fields provide a mechanism for
>> associating multiple messages in a graph... provided that the
>> originator provides them, or that some reliable mechanism can be
>> devised for inferring such relationships after the fact. As is so
>> often the case, the holdup appears to be at the input.
>>
>> (Of course, relationships could be built on the basis of sender, event
>> category or whatever, but it seems like in most cases the result would
>> be a simple set that might not be very interesting visually, except
>> perhaps when displayed geographically.)
>>
>> As for mapping, I've done a couple of demos plotting CAP location data
>> over a map... I used an open-source platform called OpenMap that reads
>> various formats including ESRI shape files, but a commercial GIS would
>> work as well if not better. The ComCARE team (in particular, a
>> company called GeoDecisions out of Pennsylvania) has also done CAP
>> plots in a web mapping service.
>>
>> The CAP <polygon> tag, in particular, is derived from GML, so
>> GML-aware platforms should be able to use it pretty directly...
>> although extracting the points and constructing a new shape is pretty
>> easy. <geocode> values require the use of polygon lookup tables...
>> easy in the case of well-known areas like ZIP codes or county (FIPS)
>> boundaries... less so in the case of system-specific zones that may
>> not be familiar to all recipients.
>>
>> - Art
>>
>>
>> At 11:17 AM -0700 5/19/04, Kon Wilms wrote:
>>> A few questions for other implementers:
>>>
>>> 1. Is anyone else working on data visualization of mass amounts of
>>> CAP
>>> alerts (such as treemaps, hyperbolic graphs, spatial trees, or such)?
>>>
>>> 2. I would be interested to hear from the GIS folks as to what
>>> formats
>>> they are using for vector data importing/plotting. If no-one is
>>> implementing GIS as part of an application, are there any guidelines
>>> for
>>> supporting GIS file formats in CAP reception/parsing (or do we need
>>> some)?
>>>
>>> Cheers
>>> Kon
>>>
>>
>>
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>>
>
>
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