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ELL_TRACK_REDUCE_POINTS

ELL_TRACK_REDUCE_POINTS

Name


      ELL_TRACK_REDUCE_POINTS

Purpose


      Reduce the number of points along a track.

Category


Calling Sequence


      lon1 = Longitude array of points along track (deg). in

Inputs


      lat1 = Latitude array of points along track (deg). in

Keyword Parameters


Keywords


        DIST=dmx Max allowed distance off original track (m).
          Default = 1 meter
        INDEX=ind Return index array of input points used
          in output array.

Outputs


      lon2 = Selected subset of Longitude array. out
      lat2 = Selected subset of Latitude array. out

Common Blocks


Notes


      Notes: Not intended for tracks over large areas of the
        globe. Converts to Transverse Mercator coordinates
        in meters and finds subset in that coordinate system.
        So track is not very limited north-south.

Modification History


      R. Sterner, 2007 Aug 22
  Copyright (C) 2007, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.



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