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BatchTransferAttributes

Page last modified 18:18, 29 Oct 2009 by matt

 

 

  • Data_Cov has the attributes we need in region subcoverages; the geometry is unwanted.
  • Geometry_Cov has the geometry we need, but no attribute data.

    • Isn't there some way, for example, to copy the attributes of Data_Cov.region to Data_Cov.labelpoint and then do a point-in-polygon overlay with Geometry_Cov (aka IDENTITY)?

    This should be an easy operation, but after days of experimenting and reading the docs the whole office (Gerry, Matt, Gary) was completely stumped.

     

     

    What Doesn't Work

     

  • because the geometry of Data_Cov is unwanted the Workstation commands UNION, INTERSECT, IDENTITY, INTERSECT will not work.
  • there are too many records to transfer for the Workstation ArcEdit TRANSFER commaned to be feasible
  • ArcMap 'spatial join' was initially promising, but it ignores polygons which have non-coincident geometry.
  • Using the ArcMap 'spatial adjustment' tool is not suitable as it is interactive. (See this ESRI Forum thread: transferring attributes from one feature to another)

    •  

     

    The Solution

    Instead of bringing the attributes to the geometry, bring the geometry to the attributes. Special thanks to the ESRI-L mailing list, again, and Andrew Makepeace, again:

     

  • Transfer the wanted attributes from the region subcoverage to the polygons; REGIONPOLY
  • Delete the data_cover arcs
  • Put the geometry_cover arcs to the data_cover
  • Save, clean, and rebuild the regions.

    •  

    Arc: REGIONPOLY data_cov data_poly  regname
Arc: ARCEDIT
Arcedit: snapping off; nodesnap off; arcsnap off     #!IMPORTANT! [1]
Arcedit: EDITCOVER data_poly ARC
Arcedit: SELECT all
Arcedit: DELETE
Arcedit: GET geometry_cov
Arcedit: CLEAN 0.001
Arcedit: SAVE
Arcedit: QUIT
Arc: DROPITEM data_poly.pat data_poly.pat data_cov-id
Arc: POLYREGION data_poly data_poly regname

    [1] Turning the snaps off is important to preserve the good geometry as-is-where-is.

     

     

     

     

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