STRIP

##
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  pro-
        file 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 us-
        ing  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.