Latest Contributions by DanPatterson_Retired

I don't use ArcCatalog since it has a bad tendancy of providing file locks, so I either run the scripts within PythonWin or PyScripter or create tools in ArcToolbox to run them from there. ... View more

Have you tried some examples using different cell sizes and distances and compare those to the vector buffer of the same distance?  The differences will become apparent when you overlay the vectors onto the raster and calculate the vector area and the raster areas. ... View more

are you using the checkoutextension code in the script? http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//000v0000003q000000 to save me downloading it? ... View more

Code example would be useful.   Did you try it? ... View more

A cautionary note, a minimum area bounding ellipse (MABE) is only going to make sense if you are using planar (aka projected) coordinates.  If you have a projected point shapefile with the points grouped by some attribute so one can differentiate groupings of points then email a  zip file to Dan_Patterson @ carleton.ca since I have a toolbox which I havent' posted, that calculates the MABE.  I can do a run on it so you get a sense of how the MABE compares to the standard deviational ellipse. ... View more

perhaps the Minimum Area Bounding Rectangle from this http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=3D230972-1422-2418-34A5-2F3FFF97C238 will get you started, it works at all license levels ... View more

If the functionality doesn't exist within arctoolbox, then it can't be used within the Python environment, you are looking at arcobjects. ... View more

it doesn't look like you specified the full path in pythonic format for use by the arcpy.env variable ... View more

login and mark the thread as being answered so that others know that the issue was resolved ... View more

if you are using version 10, simply select the "otherfield" there is no need for a code block also, if you simply want the value in the field to be edit to read 2, simply type 2 with the stuff to the left ... View more

what is the field calculator expression? ... View more

a sample of the csv file would be useful in tracking down an answer ... View more

you could try producing centroids of all the polygons, then the centroid of the centroids and perform a radial sort about that, then join the points back to the polygons and number them.  this would require some coding on your part, but there are functions in python on the web that will allow you to determine the radially sorted values ... View more