Latest Contributions by GerryGabrisch

I have a feature class of topologically correct river features.  The line???s are single part features, they have the correct flow direction, and each line end is snapped to its downstream recipiant. I have created routes using the linear referencing tools.  I exported the end nodes, and used the end node and the route to calculate river mile.  The trouble is...  In about half of the cases the distance along the line is zero because the linear referencing tools are getting a distance from the line that produced the end node.  What I want is to get the distance from the downstream intersecting line (which will be greater than zero!).  How do I accomplish this? I have tried using the line work to linear reference using the routes, but this just returns a start distance of zero, and an to distance that is equal to the line distance and not the distance along the line it intersects. Any help would be appreciated. ... View more

Even though I am new to Server, I have successfully installed ArcGIS for Server 10.1, register folders, and publish a simple service.  Then I installed the ArcGIS Server Silverlight viewer. Now I can no longer publish services or view services including the default World Cities service.  The computer just hangs when I try to publish.  I cannot get the Silverlight app to create a web map. I have restarted the server but this has not helped.  The IS department assures me that we meet the specifications for the software. Any advice is appreciated. ... View more

I am trying to automate the conversion of several geodatabase feature classes to shapefile.  The code below produces a shapefile in the output directory but then it throws this error.... PYTHON ERRORS: Traceback info:   File "C:\gtemp\ShareLummiData.py", line 12, in <module>     arcpy.FeatureClassToShapefile_conversion(LummiReservation, OutputDirectory) Error Info: object of type 'dict' has no len() ArcPy ERRORS: I would like to duplicate this process for several feature classes.  I could put an error handler here to catch the error in ESRI's code but if I do, I will not catch real errors.  Any ideas would be helpful. try:         import arcpy, sys, traceback     OutputDirectory = r"C:\gtemp\aa"     LummiReservation = r"Z:\Data\Boundaries\Administrative\Lummi.gdb\TribalBoundaries\LummiReservation"     arcpy.FeatureClassToShapefile_conversion(LummiReservation, OutputDirectory) except arcpy.ExecuteError:     # Get the tool error messages     msgs = arcpy.GetMessages(2)     # Return tool error messages for use with a script tool     arcpy.AddError(msgs)     # Print tool error messages for use in Python/PythonWin     print msgs except:     # Get the traceback object     tb = sys.exc_info()[2]     tbinfo = traceback.format_tb(tb)[0]     # Concatenate information together concerning the error into a message string     pymsg = "PYTHON ERRORS:\nTraceback info:\n" + tbinfo + "\nError Info:\n" + str(sys.exc_info()[1])     msgs = "ArcPy ERRORS:\n" + arcpy.GetMessages(2) + "\n"     # Return python error messages for use in script tool or Python Window     arcpy.AddError(pymsg)     arcpy.AddError(msgs)     # Print Python error messages for use in Python / Python Window     print pymsg + "\n"     print msgs ... View more

FYI, the Python example for the hillshade tool is incorrect (see link below) and returns an error "name 'HillShade' is not defined". The example shows.... outHillShade = HillShade(inRaster, azimuth, altitude, modelShadows, zFactor) When it should be... outHillShade = Hillshade(inRaster, azimuth, altitude, modelShadows, zFactor) http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Hillshade/009z000000v0000000/ ... View more

I have a python tool that uses a select by attribute to get each record of a feature class and then feed that selection into a zonal statistics function. I thought there was a way to use a search cursor and something like row.Shape to select each row, then feed that row into another tool, thereby speeding up the code. I can't find any example of using a cursor to select each row then use that selection as in input parameter into another function. Help please. ... View more