TRANSPOSE A non-general simple-minded routine to tranpose data cubes (or im- ages). The only transposition codes it recognises currently are 312, 231 and 213. Other orders can be added relatively easily if they are needed. Usually command VECTOR\TRANSPOSE Input Output Order is preferred, except possibly for large images. The transposition takes place in RAM memory if the sic logical SPACE_GILDAS (in megabytes unit) is big enough, else it takes place on disk.