I don't know the answer to this, but it's similar to a problem I may be dealing with soon: how to deal with DX data structures "out of core". I will have several hundred 36MB images (unsigned byte). None of the processing algorithms I use require that all frames be in memory at once so one idea is to create dummy series members that contain only filenames and then have the modules I write read the individual images if needed. Wouldn't it be nice if all DX modules automatically recognized a "virtual data type" that carried a dummy placeholder with data type information and a method for retreiving the data.
Similarly, one might be able to distribute the frames to different processesors, each having it's own local memory. Greg: sounds like the OpenDX MPI scheme might do this already? Seems like "out of core" and "distributed: might well be treated in a unified way. Any ideas are welcome. Richard Gillilan MacCHESS Igor Grivko wrote: > Hello, > > I want to use DX Data Model in my own module. So I have to read and write DX > files. I read them with DXImportDX and write them with DXExportDX functions. > But my data can be very big , so I cannot read them by only DXImportDX call > (they may be too big to room in the operation memory). > > Can I get the "positions", "connections" components without reading all the > "data" array? Can I get the beginning of the "data" array in my file? > > Thanks. > > -- > Igor L.Grivko, PhD > Pangea Inc. > Voice: (095) 973 0573, 251 4137 > E-mail: [EMAIL PROTECTED]
