Re: [emergency] Circle and Polygon

[Renato Iannella <renato@nicta.com.au>]

On 9 Jun 2005, at 15:41, Art Botterell wrote:
> And how does GML 3.1 represent simple polygons?

Again, my GML expert friend says that a polygon would look like:

<gml:Polygon>
    <gml:exterior>
        <gml:LinearRing>
            <gml:pos>12 4</gml:pos> <gml:pos>12 8</gml:pos> ...
        </gml:LinearRing>
    </gml:exterior>
</gml:Polygon>

The rigorous geometry model carefully distinguishes between the interior
and the perimeter of the object. This is useful in cases where
you really do want to indicate that a specific sub-area is *excluded* 
from
consideration.


Cheers...  Renato Iannella
Project Leader, NICTA, Brisbane, QLD, AUSTRALIA
P: +61 7 3000 0484 F: +61 7 3000 0480 M: +61 4 1313 2206
E: renato@nicta.com.au W: http://nicta.com.au


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