Select Page

To perform a geospatial union, perform the following steps:

Open the Map Page

Login to eRAMS.  Click on the “Projects” tab on the left-hand side of the page, then click on a project to open the “GIS/Analysis” page for the project.

Open the Union Tool

Once the map page has loaded, click on the toolbox icon on the map toolbar (the first icon in the list).  From there, select Geoprocessing > Feature Class > Overlay > Union.


Perform a Union

From the “Layer(s)” select box, select a layer either from your own user layers or select “Draw Polygon”, “Draw Line”, or “Draw Point”.  Repeat for the “Union” select box.

Once your layers are selected, click on “Perform Union” to generate your result.  The resulting operation will be added to your user layers.