MAP_CONVOLUTION

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MAP_CONVOLUTION

            MAP_CONVOLUTION    Integer

        Select the desired convolution function for gridding  in  the  UV  plane
        Choices are
                0    Default (currently 5)
                1    Boxcar
                2    Gaussian
                3    Sin(x)/x
                4    Gaussian * Sin(x)/x
                5    Spheroidal
        Spheroidal functions is the optimal choice. So  we  strongly  discourage
        use of any other convolution function, which are here for tests only.