Spider Diagram Attribute Link

Running programmatically

Creates a Spider Diagram between the points of a Center Points dataset and the features in the destination layer (points, polygons, or polylines) based on the values in the link fields in both datasets. The created polylines will connect the Centers to the destination features if the values in the link fields are the same.

Inputs:

• Point dataset representing the Centers.
• Link field in the input point dataset.
• Point, Polyline or Polygon layer representing the destinations.
• Link field in the destination dataset.
• Optional - Depending on the type of the destination dataset the connector line is created between
  • Point - Center Point - Destination point
  • Multipoint - Center Point - Closest Destination point
  • Polyline - Center Point - Closest point on the polyline
  • Polygon - Center Point - Closest point on the polygon boundary
• Optional - Cutoff distance - the maximum distance between a Center and a Destination to be used. Destinations that a further than this distance from any Center will not be connected to a Center

Outputs:

• New Polyline feature class with single segmented polylines. The attributes of the centers dataset will be preserved

Notes:

• The spatial references of both input dataset must have the same geographic coordinate system.
• The output spatial reference is the one of the Centers dataset if Keep Centers Sref is TRUE

Running Programmatically

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Parameters

Expression	Explanation
Function Name	SpiderDiagramAttributeLink
<Centers Dataset>	A String representing the input layer. Must be of Point type.
<Destinations Dataset>	A String representing the reference layer. Must be of Polyline type
<output dataset>	A String - the full name of the output layer.
<Centers Link>	A String - the name of the link field from the Centers Dataset.
<Destinations Link>	A String - the name of the link field from the Destinations Dataset.
< CutOff Distance>	A Double representing the Cut-Off distance to be used. The units of the tolerance are the units of spatial reference of the Centers Dataset if KeepSourceSref = TRUE. Otherwise - the units of spatial reference of the Destinations Dataset.
{KeepSourceSref}	A Boolean indicating whether the output to have the spatial reference of the input layer. If False or 0, the spatial reference of the reference layer will be used.

Running the function

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, "SpiderDiagramAttributeLink", "Centers Dataset", "Destinations Dataset", "output dataset", "Centers Link" "Destinations Link" "CutOff Distance", "KeepSourceSref"])
.NET using ETGWRun.exe	StartInfo.FileName = ETGWPath StartInfo.Arguments = "SpiderDiagramAttributeLink" "Centers Dataset" "Destinations Dataset" "output dataset" "Centers Link" "Destinations Link" "CutOff Distance" "KeepSourceSref"
.NET using ETGWOutX.dll	SpiderDiagramAttributeLink(Centers Dataset,Destinations Dataset, output dataset, Centers Link ,Destinations Link, CutOff Distance, KeepSourceSref)
ArcPy	arcpy.SpiderDiagramAttributeLink(Centers Dataset, Destinations Dataset, output dataset, "Centers Link", "Destinations Link", "CutOff Distance", "KeepSourceSref")

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.

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