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- Xref: sparky comp.unix.programmer:5230 comp.lang.c:16263
- Newsgroups: comp.unix.programmer,comp.lang.c
- Path: sparky!uunet!mcsun!chsun!bernina!hoesel
- From: hoesel@igc.ethz.ch (Frans van Hoesel)
- Subject: accessing huge amount of data in 3D
- Message-ID: <1992Nov10.100929.4558@bernina.ethz.ch>
- Sender: news@bernina.ethz.ch (USENET News System)
- Organization: University of Groningen, the Netherlands
- Date: Tue, 10 Nov 1992 10:09:29 GMT
- Lines: 30
-
- hi,
-
- I'm working on a program that needs to access huge data files (~100MB)
- in 3D.
- The problem is that i want to read abitrary rows (columns) in
- any of the thre dimensions. What is the best data format to use for
- these files. Sequentially certainly not, because this will cause very
- slow acces to a row in the non-sequential direction.
-
- I could divdide the data in small cubes and store the data in the cubes
- sequentially. This makes sure that I need only to access a limited
- numbr of diskblocks to read the data in any direction.
-
- Are there any other methodsd that I ought to look into?
- I'm sure many people face the same problem and it must have been solved
- in the literature, so any reference would be welcome. Even better when
- you could make the algorithm clear to me in a few lines. Given enough
- response I will summarize the result to the net.
-
- thanks.
-
- -- frans
-
- hoesel@igc.ethz.ch
-
- --
- ===========================================================================
- === frans van hoesel scientific research programmer ===
- === hoesel@igc.ethz.ch seeking a JOB in europa ===
- ===========================================================================
-