topic Rebuilding problem in ArcGIS Network Analyst Questions

Rebuilding problem

LarryWilliams — Wed, 20 Apr 2011 16:01:13 GMT

In 9.3 when I needed to recreate the network I would delete the feature classes that made up the network and re-create them from source.

Under 10 it appears that you can't delete the feature classes that are associated with the transportation network.

Can someone from ESRI confirm whether this is the case?

Re: Rebuilding problem

LarryWilliams — Mon, 02 May 2011 11:14:29 GMT

My mistake I was using 9.2.6.

Re: Rebuilding problem

LarryWilliams — Mon, 02 May 2011 17:53:00 GMT

Any suggestions on how to clear the data in the feature class and reload from source? I see a DeleteFeatures_management command but I don't see one to AddFeatures.

I've tried the arcpy.CopyFeatures_management() command but it won't work on a Locked file.

Re: Rebuilding problem

LarryWilliams — Mon, 02 May 2011 18:07:50 GMT

Hi Larry,

Even with ArcGIS 9.2 SP6 (or even ArcGIS 9.1 for that matter), you cannot delete a feature class when it is part of a network dataset. You must still first go into the Network Dataset Properties (Sources tab) and remove the feature class from the network dataset before it can be deleted.

Alan

That may have been your intent but I've got a python script that does just that.

Re: Rebuilding problem

LarryWilliams — Mon, 02 May 2011 18:28:25 GMT

I've attached a screen copy of the ArcCatalog for our 9.2.6 SDE database that shows I can delete the alleys that are part of the network

Re: Rebuilding problem

LarryWilliams — Tue, 03 May 2011 11:50:45 GMT

I've attached a better image that shows I can delete the alleys feature class and I include an image showing that it is part of the network.

When I try running the following code from ArcGIS 10/Python on a File GDB:

arcpy.geoprocessing.env.overwriteOutput = 1

arcpy.Select_analysis(DP3LW_TRANSE_CENTERLINE, Temp_Transe_Alleys, "CLASS_CODE = 14")
arcpy.CopyFeatures_management(Temp_Transe_Alleys, DP3LW_Transe_Alleys, "", "", "")
arcpy.CalculateField_management(DP3LW_Transe_Alleys, "SPEED", "10", "VB", "")

I got the following error:
arcpy.CopyFeatures_management(Temp_Transe_Alleys, DP3LW_Transe_Alleys, "", "", "")
File "C:\Program Files\ArcGIS\Desktop10.0\arcpy\arcpy\management.py", line 1943, in CopyFeatures
raise e
ExecuteError: ERROR 000601: Cannot delete C:\Temp\DestinationFiles.gdb\TRANSE\Transe_Alleys. May be locked by another application.

Since you say this shouldn't happen I'll bring it up with ESRI Support Canada.

Here is the code I have been using on an SDE 9.2.6 Oracle database and it works fine.

# Select all Alleys and set their speed value to 10
gp.Delete_management(DP3LW_Transe_Alleys, "FeatureClass")

gp.Select_analysis(DP3LW_TRANSE_CENTERLINE, DP3LW_Transe_Alleys, "CLASS_CODE = 14")
gp.CalculateField_management(DP3LW_Transe_Alleys, "SPEED", "10", "VB", "")

Re: Rebuilding problem

LarryWilliams — Tue, 03 May 2011 11:53:38 GMT

I forgot to add the latest image.

Re: Rebuilding problem

SteveRhyne — Fri, 20 May 2011 13:17:54 GMT

I'm experiencing a simlar problem when I'm trying to rebuild a network. I added a planned roadway segment and when I rebuild the network, I get the following error: "Build network dataset failed. The logical network is of an older version and does not support the requested functionality." I've done this in 9.3 several times and this is a first. I created the FileGeodatabase and network in ArcMAP10, so I'm not sure why it's calling it an older version. Any guidance is much appreciated.

Thanks.