Volume3D creation

volume(values[, affine, orient, rotation, ...])	Create a new volume from an array of values
zeros(shape[, affine, orient, spacing, pos])	Return a new volume of given shape and affine, filled with zeros.
zeros_like(v)	Return a new volume with same shape and affine as v, filled with zeros.
full(shape, fill_value[, affine, orient, ...])	Return a new volume of given shape and affine, filled with fill_value.
full_like(v, fill_value)	Return a new volume with same shape and affine as v, filled with fill_value.