function usa_shape_read_test ( )

%*****************************************************************************80
%
%% usa_shape_read_test() tests usa_shape_read().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    05 December 2016
%
%  Author:
%
%    John Burkardt
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'usa_shape_read_test():\n' );
  fprintf ( 1, '  usa_shape_read() returns information defining\n' );
  fprintf ( 1, '  a polygonal model of the continental United States.\n' );

  [ usa_lon, usa_lat ] = usa_shape_read ( );

  usa_length = length ( usa_lat );
%
%  Print some of the information.
%
  r8vec2_print_some ( usa_length, usa_lon, usa_lat, 10, ...
    '  Longitude/Latitude, USA Polygon Vertices:' );
%
%  Show generators, centroids, and Voronoi region together.
% 
  filename = 'usa_shape_read_test.png';
  plot_title = 'Polygonal outline of USA';
  usa_shape_display ( usa_lon, usa_lat, filename, plot_title );

  return
end

