Latest Contributions by DanPatterson_Retired

Python paths use a single forward slash / or double back slash \\ not double forward slash // as you have in several places ... View more

Your approach is correct...don't blame Python, blame what has been exposed for Python access, otherwise dive into arcobjects ... View more

if it is indeed case-sensitive, check the online help for the syntax (FocalMean???) Break the operation into steps using tool in arctoolbox to see if you can get it to work. also, you last expression  ([dem0]) doesn't need the brackets () ... View more

provide me with the link to the file you downloaded, there are too many to guess which one.  In arcmap 10, any tiff got converted to a grid stack and each individual grid has values ranging from 0-255 as would be expected. ... View more

so you are confirming that it is an ESRI integer grid...how many classes?  what is the range in values?  Can you check the table properties? ... View more

Did you convert it to an ESRI grid?  Do you have a table at all?  There are limits in displaying a table based upon the number of unique conditions and the range within the data set.  If you don't have a table at all, then is it floating point data? see http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009t00000009000000.htm similar info exists for 9.x ... View more

like euclidean distance? http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?id=6208&pid=6193&topicname=Euclidean_Distance ... View more

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z0000002n000000.htm indicates that a grid stack is the default output, I am not using 10 so I don't know what other output options there, so check those options ... View more

run a Check Geometry and if needed a Repair Geometry on the input file to rule out geometry errors. If the shapes are multipart shapes, try using the multiparttosinglepart tool on the file prior to interior buffering ... View more

is the field numeric?  have you tried to convert the shapefile to a grid then run the IDW? ... View more

Darren Read the help topics for your version on "Calculate Field", there are Python examples: 9.3.x  http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?id=1812&pid=1808&topicname=Calculate_Field_(Data_Management) 10   http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00170000004m000000.htm ... View more

it is argv not arcv in any event, sys.argv and GetParameterAsText are equivalent if you need string representations of the input, sys.argv allows for the passing of numbers ... View more

also it seems that the last + allows to concatenate the last part   ", 99, 0)",  but I would check in any event. ... View more

if your value field is numeric then you will have to str value99, and I am not sure what the purpose of the last +  is for gp.SingleOutputMapAlgebra_sa("CON( " + raster + " >= " + str(value99) + ", 99, 0)", Output) ... View more