Latest Contributions by DanPatterson_Retired

Project your data first, or add it into the workflow http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00170000007m000000.htm ... View more

www.python.org has the official documentation, look for "escape characters" within the string section  Books by O'Reilly serve as good hardcopy companions to the web documents that exist. ... View more

Start a new session of ArcMap and add the raster Use the Define Projection Tool in ArcToolbox Does this procedure work? ... View more

What you are describing is a variant of the concave hull.  There is one implementation here: http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=AA23C5C6-1422-2418-8811-1365253A756A There are other ways of generating concave hulls, but this may be a start. ... View more

Not necessarily the answer you want...but if one needs answers in planar units...project the data so that your file is in the desired coordinates, keeping the DD file as a backup ... View more

It just deletes the reference to the *.mxd...called clean-up.  Not necessary unless you are running many processes, but is generally good practice (think teenagers and their rooms ... clean-up is good) ... View more

Elizabeth Is there a chance that you aren't using a projected file as input? The error line contains .... OutputCoordinateSystem not found suggesting that either your data are in decimal degrees and/or doesn't have a defined coordinate system ... View more

Did you ensure that the exact same cell size and extent as the input raster was used?  Check in the Environments tab for any tool that you use in Arctoolbox...sometimes they don't stick. ... View more

Grid files don't like paths with spaces in them, ensure that your destination folder is space free for the input and output grids. ... View more

The Minimum Area Bounding Rectangle has been implemented already in the Bounding Containers toolset.  It does exactly what you want and the code can be extracted from the Python scripts.  This version http://resources.arcgis.com/gallery/file/geoprocessing/details?entryID=3D230972-1422-2418-34A5-2F3FFF97C238  is for ArcGis 10. ... View more

I am assuming the name of the raster is correct...is there also a space after the = sign? ... View more

have you tried to download directly into DNRGarmin? ... View more

the link is http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z000000ns000000.htm the error is associated with your small-case cos instead of the capitalized Cos (always specify the exact error) Inras would be your input raster and Outras would be your output raster...and so on ... View more

add them (aka... plus) ... View more

Long/lat has curvature, UTM doesn't, so a fishnet (aka polygon grid) will be oriented east/west and north/south in metric (feet for you) units.  If your need to orient a grid to long/lat that is a mile wide then you are going to have to do more math, but the gain would be small ... View more