To Overlay Two Feature Layers

Use Overlay to compare two feature classes or layers that are spatially related.

To perform an Overlay operation

1. Connect to the features sources to compare.
2. Analyze tab Feature panel Feature Overlay Find
3. On the Overlay Analysis - Source and Overlay Type Page, specify the following:
   • Source: Specify the feature layer or feature class to use as the source.
   • Overlay: Specify the feature layer or feature class to use as the overlay.
   • Type: Select the type of overlay comparison to perform.
4. Click Next.
5. On the Set Output and Settings Page, specify the following:
   • Output: Specify the name and location of the SDF file that will contain the result of the Overlay operation.
   • Layer Name: Specify the name of the Display Manager layer that will contain the result of the Overlay operation.
   • Sliver Tolerance: Specify which slivers become separate features and which are joined with a neighboring polygon. Set the units for the tolerance setting, then set the maximum and minimum values.
   • Ordinate Tolerance: Specify how far apart two nodes or vertices of a line or polygon must be to be treated as separate points in the output layer. Set the units for the tolerance setting, then set the Length.
   • Output Properties: Specify which properties from the Source and (if applicable) Overlay are included in the resulting layer.
6. Click Finish to perform the Overlay.