Open Table of Contents

ET GeoWizards Linear Referencing

Intersect/Union Event Layers

Both Union and Intersect functions combine two line event layers in a single line event table.  

• Union will split the input linear events at their intersections and writes them to the new event table
• Intersect will write in the output event table only the overlapping events from the input event layers

Input:

• An input line event layer
• An overlay line event layer

Output:

• A new dbf table with the events that result from the overlaying the input layers  
• The dbf table will contain all the original fields of the input and overlay tables

Notes:

• If the option to add the result as an event layer, an additional field will be available
  • [ET_Error] - indicates whether the event was properly located. If the value in this field indicates some kind of error the shape of the event point will be empty.