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  The purpose of this program is allow the user to browse a very narrow
  selection of shapefiles. Namely, those containing geographical shapes
  in latitude and longitude coordinates. In other words, shapefiles
  containing maps. File attributes are listed in the left-hand list
  widget. Clicking on a file attribute, will list all the entity
  attributes for that file attribute in the right-hand list. Clicking
  an entity attribute with list the type of entity, and the X and Y
  bounds of that entity (shown as LON and LAT, respectively), in the
  statusbar at the bottom of the display.
  Knowing the attribute and entity names of a shapefile will give
  you insight into how to read and display the information in the file.
  For examples, see the Coyote Library program cgDrawShapes.




      David W. Fanning
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: david@idlcoyote.com
      Coyote's Guide to IDL Programming: http://www.idlcoyote.com


    To learn about and draw the states.shp file in the IDL examples directory::
      filename = Filepath(SubDir=['examples','data'], 'states.shp')
      cgShapeInfo, filename, XRANGE=xr, YRANGE=yr
      cgPlot, xr, yr, /NoData, XStyle=1, YStyle=1
      cgDrawShapes, filename


Modification History

      Written by David W. Fanning, 21 October 2006.
      Slight modifications to the interface. 14 May 2010. DWF.
      Added XRANGE and YRANGE output keywords. 15 May 2010. DWF.
      Renamed cgShapeFile from Shapefile. 20 Aug 2012. DWF.
      Modified so that when the user selects a new Attribute Name, the Attribue Value index stays
          the same. 24 Nov 2013. DWF.
      Fixed a type with a progress bar. 26 March 2014. DWF.


    Copyright (c) 2006-2013, Fanning Software Consulting, Inc.

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