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I have the following GML where I would like to place these coordinates on a map and calculate the square meters of the polygon.

I am completely at loss here as I do not know where to begin. Any guidance would be appreciated.

<gml:patches>
<gml:PolygonPatch>
<gml:exterior>
<gml:LinearRing>
<gml:posList>311150.63033774 6479641.6253737 311239.877904282 6481495.96621247 313671.207679776 6481379.69563319 316102.582107445 6481264.93407153 318534.000599652 6481151.68149072 320965.462571711 6481039.93785227 323396.967434406 6480929.70312129 325828.514603641 6480820.97725937 325746.17182965 6478966.4376668 323313.473934626 6479075.19553759 320880.818316441 6479185.46272519 318448.205562417 6479297.23926513 316015.636256428 6479410.52519566 313583.110986385 6479525.32055238 311150.63033774 6479641.6253737</gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:PolygonPatch>
</gml:patches>
  • Welcome to Geographic Information Systems! Welcome to GIS SE! We're a little different from other sites; this isn't a discussion forum but a Q&A site. Your questions should as much as possible describe not just what you want to do, but precisely what you have tried and where you are stuck trying that. Please check out our short tour for more about how the site works. – Ian Turton Apr 22 at 10:19
  • first you need to know what projection those coordinates are in, otherwise they are just a list of random numbers. Usually a GML file will have that information in it, what happens if you import the whole GML file into QGis? – Ian Turton Apr 22 at 10:21

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