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Subject: Re: [emergency] GML SF discussion
<rz:abstract>Radiation
hot spots in the vicinity of the AnyTown nuclear reactor. Only readings that
exceed the background radiation of 100 millirems per hour.</rz:abstract>
<rz:rems
uom="REM">170[CP1] </rz:rems>
<rz:where>
<gml:Surface
gml:id="RZ001_1"
srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
<gml:patches>
<gml:PolygonPatch>
<gml:exterior>
<gml:Ring>
<gml:curveMember>
<gml:Curve gml:id="C01">
<gml:segments>
<gml:CircleByCenterPoint
numArc="1">
<gml:pos>51.389
30.099</gml:pos>
<gml:radius
uom="m">20000</gml:radius>
</gml:CircleByCenterPoint>
</gml:segments>
</gml:Curve>
</gml:curveMember>
</gml:Ring>
</gml:exterior>
</gml:PolygonPatch>
</gml:patches>
</gml:Surface>
</rz:where>
</rz:RadZones>
A bit more verbose :-) but provides an excellent example of how a circular geometry can be a polygon feature that is part of a surface covering "surface". One can have feature instances that are much simpler than the one above. The example above is from a real application of GML in the CBRN community (based on the CCSI model - Common CBRN Sensor Interface)
Cheers
Carl
[CP1]170 rem? Or should this be 0.170?
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