Name

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      ELL_GEO_INT

Purpose

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      Intersection point of two geodesic segments.

Category

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Calling Sequence

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      ell_geo_int, s1, s2, pi

Inputs

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      s1, s2 = Segments 1 and 2. in
        s1 = {lon1:lon1, lat1:lat1, lon2:lon2, lat2:lat2}
              Segment start point, Segment end point.
        s2 = Same format.

Keyword Parameters

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Keywords

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        FLAG=flag Status flag. 0=no intersection, 1=intersection.
        /NOSEARCH Do not search for intersection point.
          Just return status flag.

Outputs

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      pi = Returned intersection point. out
        pi = {loni:loni, lati:lati}

Common Blocks

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Notes

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Modification History

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      R. Sterner, 2006 Sep 25
      R. Sterner, 2008 Feb 28 --- Added /NOSEARCH.
  Copyright (C) 2006, 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.