CleanDanglingNodes

Clean Dangling Nodes

Cleans the dangling nodes from a polyline layer using user specified dangling tolerance

Use Export Nodes Wizard to check the status of a data set. It will analyze the nodes of a polyline layer and will create a Point feature class with classified nodes.
It is recommended before proceeding with cleaning the dangling nodes to use the Clean Polyline Wizard to ensure that all the polylines are intersected and the very small over and undershoots are cleaned with the Fuzzy tolerance.
A Fuzzy tolerance of 0 may be used if the original shapes have to be preserved exactly the same. In this case only the intersections will be created

Before Clean Dangles

After Clean - No "Nearest Snap" used

After Clean - No Nearest Snap used

After Clean - "Nearest Snap" used

After Clean - Nearest Snap used

Parameters

Expression	Explanation
Function Name	CleanDangles
<input dataset>	A String representing the input layer. Must be of Polyline type.
<output dataset>	A String - the full name of the output layer.
<Dangling Tolerance>	A Double representing the tolerance to be used. The polylines with dangling nodes within distance smaller than this value to existing features (depending on the options used) will be extended/snapped to the closest existing feature
{Snap Nearest}	A Boolean - if True, the ends of the dangling polylines that could not be snapped to an existing polyline by extending in the direction of the last segment or to an existing node will be snapped (if the dangling node is within a distance smaller than the to an existing polyline) to the closest point of the closest polyline
{Fuzzy Tolerance}	A Double representing the Fuzzy tolerance (in the units of the input dataset).

ETGWPath used in the table below is the full path to ETGWRun.exe (E.G. "C:\Program Files\ETSpatial Techniques\ETGeo Wizards\ETGWRun.exe")

Language	Syntax
Python	subprocess.call([ETGWPath, "CleanDangles", "input dataset", "output dataset", "Dangling Tolerance", "Snap Nearest", "Fuzzy Tolerance"])
.NET using ETGWRun.exe	StartInfo.FileName = ETGWPath StartInfo.Arguments = "CleanDangles" "input dataset" "output dataset" "Dangling Tolerance" "Snap Nearest" "Fuzzy Tolerance"
.NET using ETGWOutX.dll	CleanDangles(input dataset, output dataset, Dangling Tolerance, Snap Nearest, Fuzzy Tolerance)
ArcPy	arcpy.CleanDangles(input dataset, output dataset, "Dangling Tolerance", "Snap Nearest", "Fuzzy Tolerance")

Notes:

<> - required parameter
{} - optional parameter
See examples for Python , .NET or ArcPy
The argument separator for StartInfo.Arguments is space. If a string might contain a space, you need to double quote it.