Name

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      ELL_PLOT_SEG

Purpose

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      Plot a color coded data segment on current map.

Category

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Calling Sequence

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      ell_plot_seg, p1, p2

Inputs

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      p1 = Start of segment to plot. in
      p2 = Endpoint of segment to plot. in
        Both points are structures {lon:lon,lat:lat}.

Keyword Parameters

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Keywords

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        COLOR=clr Array of 24-bit colors of data along segment.
        WIDTH=wd Width of segment in meters.
        NUM=num Number of steps across width.

Outputs

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Common Blocks

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Notes

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      Notes: If plotted color band has holes trying using
        thick=2 (or 3).
        Assumes data values (given by the clr array) are evenly
          spaced in range from pt1 to pt2.

Example

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          map_set,39,-77,scale=4e6,/cont,/usa
          x1=-80 & y1=37
          x2=-73 & y2=41
          v = makey(500)*50-75
          clr=color_code(v)
          ell_plot_seg,{lon:x1,lat:y1},{lon:x2,lat:y2},color=clr, $
            width=10000,num=100,thick=2
          map_set,39,-77,scale=4e6,/cont,/usa,/noerase

Modification History

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  Copyright (C) 2008, 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.