STRIP

        [GREG2\]STRIP [X1 Y1 X2 Y2]

    Will  extract   from the current  Regular  Grid  array  a   strip  going
    through points (X1,Y1)  and (X2,Y2) in User coordinates. If no arguments
    are present,  it will call the cursor  to set the two points.   Although
    the  end  points  need not  be on the  map boundaries, STRIP will always
    produce a full strip across the map.

    For strip parallel  to the X or Y map axis, the nearest pixel is used to
    fill the values. For any other strip orientation,  if the tangent of the
    angle is less  than (NY-1)/(NX-1)  (i.e. if  you scan  the  X  map  axis
    faster   than the  Y map axis),  the  number  of resulting points on the
    strip profile will be NX and the user coordinates along the  strip  will
    be   the  map  X  coordinate.  For each pixel, interpolation along the Y
    axis is done using the three nearby Y pixels. A similar situation with X
    replacing  Y occurs if the angle is larger.

    The map user coordinates are put into the X buffer, and map values  into
    the  Y  buffer.   The  strip   can  then   be plotted using CONNECT, but
    remember to set decent limits before.