Extracting/Exporting coordinates from polygons (shape) to text?

Question

Is there any well working way to extract the X and Y coordinates of a polygon from shapefile to some sort of text (preferably csv)? The whole process should be somehow done automated through a (python-) script, since there are a lot of polygons. For now it doesn't matter if there is a solution in ArcGIS 10 or somethin hidden within the gdal-libraries or any other OS-GIS.

OpenJump GIS is able to show the coordinates of any object within a shapefile (which could be copied by hand). But as far as I know its not possible to use this function automated.

Answer 1

I got what I need and I want to sum up two possible solutions:

First one was the link posted by @Vince in the comments:

• Converting geometry to WKT using ArcPy?

It uses Python in connection with ArcPy.

Another solution, using Python only is script called shapefile.py. It can be found at https://code.google.com/p/pyshp/ A very simple script to iterate over the points of a polygon and print them to screen would look like this:

import shapefile    
    
sf = shapefile.Reader("my_shapefile")
shapes = sf.shapes()

#shape[0] represents the 1st polygon of the shapefile
for point in shapes[0].points:
print point

Answer 2

Seems to be easy, you just need to create the XY coordinate field in your polygone table and later in the script use the arcpy.da.SearchCursor(Poligone.shp,"FieldXY")in something similar to this. Hope this works for you ^^

with arcpy.da.SearchCursor("Poligone.shp",'Field') as Buscador:
    with open(nombarch2,"a+")as c:
        for row in Buscador:
            for cell in row:
                conv= str(cell)
                c.write(conv)
                c.write(" ")
                c.write("\n")
            f.close