I'll try to clarify for you. Could u explain what the meta information is based on? In order to accomplish an undo, would this meta information be used to perform the inverse of an operation? A situation where I dont think the meta information would make sense would be: when resizing an image (u lose pixels), so I think you would have to keep the former image completely in memory and not rely on meta information to bring it back (via a computation/operation that is an inverse of the original) for the undo. If the above is still not sinking in, it is simply my attempt to try and understand in *further detail* (than your response below) how the undo system works. On Thu, 2002-10-31 at 03:20, Sven Neumann wrote: > Hi, > > Hunter Peress <hu.peress@xxxxxxxxxxxxxx> writes: > > > Suppose 100 actions are done to an image of size T > > Would gimp's memory increase by 100T ? > > it depends on what you are undoing. Only the altered tiles and the > necessary meta information to undo the action is stored in the undo > system. > > > Salut, Sven > >
