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I have a text file containing the projected coordinates of the points that define a single polygon. The X, Y coordinates are separated by Tab

Is there a tool in ArcGIS similar to "Add X,Y Data" in ArcMap, that can be used to automatically create polygons FC, not point FC?

I use ArcGIS 10.1 for Desktop.

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Possible duplicate: – Maksim Aug 26 '14 at 12:30
There is an ArcGIS Idea for this - search on "ungenerate" (the opposite tool is also mentioned). – PolyGeo Aug 26 '14 at 12:37
If you have an ArcInfo license, then you can use the Minimum Bounding Geometry (Data Management tool to create a convex hull (ref. from your points. – Erica Aug 26 '14 at 12:42
Erica, wouldn't that be a two-step process? 1) Create points FC - 2) Create polygon using the Points FC. I was looking for a single tool that can automatically do that, so should I assume there isn't any? Thank you – Ligia Aug 26 '14 at 12:53
up vote 9 down vote accepted

There isn't any tool to do this in 1 single step, you should either:

  1. convert your text file to points
  2. convert points to lines with Points to Line
  3. convert lines to polygons with Feature to Polygon (Advanced licnese required)


Use arcpy :) - no specific license required.

See an example at the bottom of the page Writing geometries. The code converts a list of coordinates (a text file can be regarded as such a list) into polylines, you can easily modify it to create polygons.

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thank you for your answer, it's exactly what I needed. – Ligia Aug 26 '14 at 13:21
Glad I could help! – GISGe Aug 26 '14 at 13:25

On the ArcGIS Idea website, someone suggested this toolbox that has a tool called "Create features from text File", which can automatically create point, lines and polygons Feature Classes from text files containing coordinates. Worked for me.

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