SPACING

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SPACING

              CHARACTER*16 SPACING[2]

        SPACING indicates the step (and implicitely the contour levels) for con-
        touring  and/or greyscale. SPACING[1] control the values, and SPACING[2]
        the Unit of these values. It can be UNITS  (default  data  cube  units),
        NOISE or SIGMA (noise level), Jy (which also stands for Jy/Beam) and its
        sub-units mJy (or milliJy) and microJy, or K and its  sub-units  mK  (or
        milliK) or microK.

        Jy  (and its sub-units) is taken as equivalent to Jy/Beam, and automatic
        conversion between brightness unit (K) and flux unit (Jy/Beam)  is  made
        when the data cube has a specified angular resolution and frequency.

        SPACING[1] = 0 means an automatic guess of the contours from the Min and
        Max of the data cube.

        The type of spacing is controlled by  variable SPACE_TYPE.