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How can I create a vertex(and then a point feature on the vertex) on a polyline and give it some empty attributes(create fields), move an existing vertex, delete vertex? I am in ArcGIS environment and I have a line feature class with millions of vertices each having more than 20 attribute fields. Looking for a python script. I can do it using Arc tools but I am planning to create a toolbar using add-ins and run the code.

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Vertices don't have attributes, only coordinates and measures (X, Y, Z, M). – blah238 Apr 17 '13 at 2:18
You can, however create a separate point feature class which represents the vertices and give attributes to those. – Fezter Apr 17 '13 at 2:54
Its worth pointing out that Fezter's idea is using the Feature Vertices To Points which is an ArcInfo(Advanced) licensed tool. – Hornbydd Apr 17 '13 at 15:51

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