def alt_blend_value(data, i, j, k):
    """Computes the average value of the three vertices of a triangle in the
    simplex triangulation, where two of the vertices are on the upper
    horizontal."""

    keys = alt_triangle_coordinates(i, j, k)
    return blend_value(data, i, j, k, keys=keys)
def alt_blend_value ( data , i , j , k ) : keys = alt_triangle_coordinates ( i , j , k ) return blend_value ( data , i , j , k , keys = keys )
Computes the average value of the three vertices of a triangle in the
    simplex triangulation, where two of the vertices are on the upper
    horizontal.