I am modifying a script suggested in a prior thread. http://forums.arcgis.com/threads/902...ght=jsmith0705
I want to be able to select a line, determine if the ARCLENGTH field has a value greater than zero, return that value if greater than zero, if not return the value from the Shape_Length field.
The script runs with no errors or results.
I want to be able to select a line, determine if the ARCLENGTH field has a value greater than zero, return that value if greater than zero, if not return the value from the Shape_Length field.
The script runs with no errors or results.
Code:
import arcpy
mxd = arcpy.mapping.MapDocument ("CURRENT")
df = arcpy.mapping.ListDataFrames (mxd)[0]
lyr = arcpy.mapping.ListLayers(mxd, "Lot_Lines", df)[0]
for lyr in arcpy.mapping.ListLayers(mxd):
tlyr = lyr
dsc = arcpy.Describe(tlyr)
sel_set = dsc.FIDSet
if dsc.shapeType == "Line":
if len(sel_set) > 0: #If ARCLENGTH value > 0
arcpy.AddMessage(str(ARCLENGTH)) #Return ARCLENGTH value
else:
arcpy.AddMessage(str(Shape_Length)) #Return Shape_Length value
