Subset Shapefiles

Selected from Report button on Table display window for shapefiles.

Useful if file is so huge that it displays in an unreasonable length of time

If the file is a point shapefile and the lat/long are in the dBase table

• Filter to the region you want
  • Rectangular box graphical filter
  • Map area with the current map extent of the map
• Export DBF Table, on the Report button.  You can create the SHP anbd SHX if you have to share with someone using other software.

Two options for all shapfiles, but the only way to go with lines and polygons:

• Current filter
  • All records on the current Table display window. You can filter the database to restrict the records, or use the map query option.
  • All fields on the current Table display window. You can hide fields, which will not be in the subset database.
• Current map extent
(uses GDAL)
• This will include all fields

	Census Tracts for Maryland
	Filter: database using the county FIPS code
	Filtered map with tracts for a single county.
	Report, subset shapefile, current subset to export just this county.

Last revision 11/14/2019