Create Overland Flow Connectors- KeyError 26
Roadblock in the create overland connectors
I’ve followed the stormwater documentation from page 1. I have created the. gdb’s and feature datasets as per the recommended method. But when trying to execute I have some warning messages that appear to be fatal.
The first errors happen in Create Drainage Line Structures
When I go to Line 247
# define full path to output layers
if parameters[0].altered and not parameters[0].hasBeenValidated:
247 if not parameters[0].isInputValueDerived():
if parameters[0].value=='':
#Reset output
parameters[2].value=''
parameters[3].value=''
Then 989
#..2 by 2 comparison, on the first loop, line on index 0 is compared with line 1,2, till lOIDs.count-1
iLoopStart = 0
iLoopEnd = len(lOIDs) - 2
for iLoopStart in range(0,iLoopEnd + 1):
iOID = lOIDs[iLoopStart]
with arcpy.da.UpdateCursor(out_drain_lines,[apwrutils.FN_ShapeAt,apwrutils.FN_ShapeAtLength,apwrutils.FN_QCVALUE], sOIDName + "=" + str(iOID)) as rows:
989 for row in rows:
if row[0]:
pointcolpart1 = row[0].getPart(0)
pointcolpartnew = []
for i in pointcolpart1:
pointcolpartnew.append(i)
dlpolyline = dConfLines[iOID]
for nii in range(iLoopStart + 1, len(lOIDs)):
iOID2 = lOIDs[nii]
with arcpy.da.UpdateCursor(out_drain_lines,[apwrutils.FN_ShapeAt,apwrutils.FN_ShapeAtLength,apwrutils.FN_QCVALUE], sOIDName + "=" + str(iOID2)) as rows2:
for row2 in rows2:
#polyline2 = row2[0]
if row2[0]:
pointcolpart2 = row2[0].getPart(0)
pointcolpart2new = []
for i in pointcolpart2:
pointcolpart2new.append(i)
dlpolyline2 = dConfLines[iOID2]
My Python is basic, and I cant work out what the actual issue is.
The final error is, the output cant be opened.
but when I go into catalogue I’m able to open the file path.
I get the same error when doing the next step, Adjust Flow direction in Streams.
same thing, once run I can go into catalogue and open the file path
In all cases, the output data looks consistent to what was produced when I was running the v1 workflow of the stormwater model.
The final error, where I’ve hit a road block was in Create Overland Flow connectors
It appears everything runs fine, but I get keyError 26
It related to a python dictionary item not being defined.
with arcpy.da.UpdateCursor(outletpathstream,["grid_code","SHAPE@"]) as ucursor:
for urow in ucursor:
gridid = ucursor[0]
if gridid>2:
#arcpy.AddMessage("GRIDID" + str(gridid))
part = urow[1].getPart(0)
326 x, y = outletdict[gridid]
#arcpy.AddWarning("x, y " + str(x) + " " + str(y))
part.replace(0, arcpy.Point(x,y))
polyline =arcpy.Polyline(arcpy.Array(part))
urow[1] = polyline
ucursor.updateRow(urow)
I’m going to assume the error in creating the overland flow was due to something being missed during the previous steps.
I’ve tried re-starting the process in a totally new folder.
I’ve tried again from scratch, re-running the arc hydro to get the input streams
I run the tools with the raster data located in a folder (as per the workflow) and through a .gdb
I got a GIS guy from IT to help me debug and we’ve run out of ideas.
Is this something that has been encountered before? Do you have any ideas on how I could do a workaround?
Thanks
Lizanne
