Fortran SHGRID - interpolate 3D random data SHGETNP - find nearest points to a given point in 3-space SHSETI - set values for integer control paramaters SHGETI - retrieve values for integer control paramaters C c_shgrid - interpolate 3D random data c_shgetnp - find nearest points to a given point in 3-space c_shseti - set values for integer control paramaters c_shgeti - retrieve values for integer control paramaters NCL shgrid - interpolate 3D random data shgetnp - find nearest points to a given point in 3-space shsetp - set values for control paramaters shgetp - retrieve values for control paramaters