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Delete duplicate polyline feature in ArcGIS

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#1
hocgis

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I have a polyline layer (store in geodatabase), I also have run topology "Must not overlap". The problem is that: there are so many duplicate error. (>20000 error).
I want to delete the duplicate one. Please help me How can i do it automatically? Thanks.

#2
spesseh

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I have a polyline layer (store in geodatabase), I also have run topology "Must not overlap". The problem is that: there are so many duplicate error. (>20000 error).
I want to delete the duplicate one. Please help me How can i do it automatically? Thanks.


You could use the "Finding Duplicate Geometry" tool if you have that available?
http://webhelp.esri....licate_geometry

Or could you in some way calculate the lines that are duplicate?
Andreas

Visit my Blog: http://www.gisintersect.com

#3
spesseh

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I have a polyline layer (store in geodatabase), I also have run topology "Must not overlap". The problem is that: there are so many duplicate error. (>20000 error).
I want to delete the duplicate one. Please help me How can i do it automatically? Thanks.


You could use the "Finding Duplicate Geometry" tool if you have that available?
http://webhelp.esri....licate_geometry

Or could you in some way calculate the lines that are duplicate?



Sorry. See here on how to fix topology errors: http://webhelp.esri....ogy_error_fixes
Andreas

Visit my Blog: http://www.gisintersect.com

#4
hocgis

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I have a polyline layer (store in geodatabase), I also have run topology "Must not overlap". The problem is that: there are so many duplicate error. (>20000 error).
I want to delete the duplicate one. Please help me How can i do it automatically? Thanks.


You could use the "Finding Duplicate Geometry" tool if you have that available?
http://webhelp.esri....licate_geometry

Or could you in some way calculate the lines that are duplicate?



Sorry. See here on how to fix topology errors: http://webhelp.esri....ogy_error_fixes


I have aldready known how to fix "Must not overlap" error. However, it's take too much time to do it. (>20000 error).
Is there any way to find all duplicate polyline features to delete at once? Looking forward to your reply.

#5
david17tym

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ET GeoWizards has a "Remove Exact Duplicates" function, see attached.
Dave

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#6
hocgis

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ET GeoWizards has a "Remove Exact Duplicates" function, see attached.
Dave


That function is so great. I had a DEMO version which just operated with number of features less than 100. While my feature class is huge (>26000). What a pity! Anyway thks you so much.
There are no ways to solve this problem with a famous software as ArcGIS. Incredible!

#7
Ninomax

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You can try this Python script: http://arcscripts.es....asp?dbid=15138

#8
dpalmetz

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You can try this Python script: http://arcscripts.es....asp?dbid=15138

If you have an ArcInfo-License you could use the "Planarize" tool from the topology-toolbar. It worked well for me with several thousand duplicated lines.




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