Adds several tests, improves round-trip-ability of gradient vectors by using DoubleConversion to write the gradients losslessly, and improves internal consistency of DWI NRRD nodes by enforcing expected invariants in the node setters.
Adds several tests, improves round-trip-ability of gradient vectors by using DoubleConversion to write the gradients losslessly, and improves internal consistency of DWI NRRD nodes by enforcing expected invariants in the node setters.