I am using ArcGIS Pro application to create a map and add a single polygon feature class onto the map.

As shown below, I use bold polyline to outline the boundary of the polygon and click "zoom to layer" to make sure the current display extent fit the polygon well.

Then I check the current visible extent and I get the set of the four meter values.

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Then I try to customize the extent by choosing the polygon feature class and the extent value looks totally different. What I expect is to see very similar meter values there.

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What does each representation of extent mean so that I can understand the difference seen here?

  • 1
    It looks like your map and data are in different coordinate systems, please include the details of the maps spatial reference and the feature class' spatial reference. Please note that before you add a feature and save a shapefile extent is not yet set (you could undo) and should automatically update when you save. – Michael Stimson Jan 30 '19 at 1:18
  • If you "Zoom to" the farm Lot layer, does it scale to a larger area? It could be the shapefile has a larger extent than you are using and it is reporting on features (existing or NULL) hence why the extents are so different. – Keagan Allan Jan 30 '19 at 1:29
  • @KeaganAllan No, the layer only include this polygon feature so I zoom to layer and see a map view perfectly bounding this polygon – LUSAQX Jan 30 '19 at 2:15
  • @MichaelStimson I try to align the coordinate system for both map and feature class but the meter values are still different as shown. – LUSAQX Jan 30 '19 at 2:20
  • I don't even find a good explanation about extent values from online. Could someone can provide a reference on interpreting the meter values set in extent and what kind of projection/spatial reference info it contained? Much appreciated. – LUSAQX Jan 30 '19 at 2:22

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