MATLAB Answers

Lina R
0

Shaperead

Asked by Lina R
on 15 Nov 2011
Hi
When I use shaperead on a file (in this case concord_roads) and ask for the X coordinate, why are the typical content of the array numbers like 2.18*e^5. Doesn't sound like a longitude to me? This is probably a very stupid question, but it's my first time.
Thanks/

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2 Answers

Caleb
Answer by Caleb
on 10 Jan 2013

Try this: s = shaperead('concord_shapes.shp','UseGeoCoords',true)

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Answer by Jonathan Sullivan on 10 Jan 2013

That sounds like its in Universal Trans Mercator (UTM) coordinates. There are a few utm to geodetic coordinate transforms availible on the file exchange. You can try this one.
You''l need to know the UTM zone. Concord roads is most likely Concord, MA, which would be UTM zone 19T.
Best of luck!

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