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Thread: adding lengths of polylines to an attribute table

  1. #1

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    Default adding lengths of polylines to an attribute table

    Hello,

    I am creating a model in which a polyline feature (streams) is intersected with a polygon feature (impervious surface converted to polygons), splitting the polylines into a number of small segments. I used the "multipart to single part" and "feature to line" (unchecking retain attributes) tools to convert the new segments into a set of small polylines without the attributes of the original shapefile, which lists the length of each polyline before being split. What I would like to do now is measure the length of each polyline segment and add that data as a field in the attribute table for the new feature. Is there a way to do this?

    Many thanks

  2. #2
    Dan Lee

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    Default Re: adding lengths of polylines to an attribute table

    Use the Add Field tool (Data Management toolbox - Fields toolset) to add a double type field.
    Use the Calculate Field tool (in the same toolset) to calculate shape_length. See examples (ArcGIS 10) here:
    http://help.arcgis.com/en/arcgisdesk...000002m000000/
    Dan (Geoprocessing)

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