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I've got about a dozen polygons in a feature class loaded in ArcMap 10, all in geographic WGS 1984.

How do I easily obtain the coordinates associated with each vertex of each polygon in that feature class? Ideally I would like them to be nicely tabulated in spreadsheet format.

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Can you use python/arcpy? –  Hairy May 9 '11 at 7:25
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4 Answers

up vote 12 down vote accepted

Use the "Feature Vertices To Points" tool within ArcToolbox or if you do not have ArcInfo license then you could use the Polygon to Point tool from ET Geowizard (free tool), then in ArcMap you can use the "Add XY Coordinates" tool to get the XY value for each vertex.

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Is there an alternative to convert polygons to points in python if you don't have an ArcInfo license and you have the free version of Geowizards (unable use python commands in the free version). –  joebob Jan 28 at 15:31
    
@joebob, Maybe Shapely toblerity.org/shapely/index.html –  artwork21 Jan 28 at 20:11
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After much searching I found that there is a sample toolbox whihc includes a Write Features To Text File python script. As others have remarked in searches I have done, it is unbelievable that something as basic as exporting polygon coordinates is not a standard tool in ArcGIS.

The toolbox can be found here http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=F25C5576-1422-2418-A060-04188EBD33A9

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Try the geo-wizard tools fron Spatial technologies. It has several free tools that can do what you want. Try the get polygon coordinates. Or polygon to points

et geo-wizards

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It seems that I need to first use "polygon to points", then "get point coordinates". But I need to buy an expensive licence to use it. Any other ideas? Thanks for your answer. –  hpy May 9 '11 at 5:24
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@Penyaun - If you go to the website and choose the geo-wizards section (on the left nav). The choose free functions. you should see both of those functions listed. This means that you can download the software and use those free. If you do decide to purchase I can say that for the money $600 there are many many functions you will use. –  Brad Nesom May 9 '11 at 13:40
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GeoWizards is the best solution for this question - bases on my user experience. –  Mapperz May 9 '11 at 13:56
    
Found it now, thanks! –  hpy May 9 '11 at 14:03
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+1 GeoWizards should be in every ArcGIS user's box of tricks –  Stephen Lead Feb 3 '12 at 1:55
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See Bounding Containers using the extent option, it will give you the left, right, top and bottom coordinates of each feature if using the "extent" option. You will have to reassemble into the four points and tabulate into a spreadsheet format (nothing does exactly what you want without some work :) )

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Thanks for the answer, but the new polygons that tool creates doesn't seem to get me closer to what I need. Not to mention some of my polygons have many sides/corners, and are rotated, which the tool does not seem to consider. Any other ideas? –  hpy May 9 '11 at 4:26
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@penyuan You probably want to use the word "vertex" instead of "corner" then. –  whuber May 9 '11 at 4:36
    
@whuber: Changed, thanks! –  hpy May 9 '11 at 4:45
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