Re: Reads in only part of file
- To: mathgroup at smc.vnet.net
- Subject: [mg51176] Re: Reads in only part of file
- From: "Mariusz Jankowski" <mjankowski at usm.maine.edu>
- Date: Thu, 7 Oct 2004 05:26:01 -0400 (EDT)
- Organization: University of Southern Maine
- References: <ck0c50$nvp$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Steve, use the option DOSTextFormat -> True. This an option of OpenStream so
you must do
stream = OpenStream[ st1, DOSTextFormat -> True]
xin = ReadList[stream, {Byte, Byte}]
Good luck, Mariusz
>>> Steve Gray<stevebg at adelphia.net> 10/6/2004 4:59:12 AM >>>
I have a binary file of 945 coordinates, in X,Y pairs, each value being 8
bits, for 1890
bytes total. I have examined the file with a hex file display and editor
(which shows the file as 2
hex characters per byte) and confirms that the file contains exactly the
expected number of bytes.
My input process is:
roswin[nv_]:= Module[{st1},
nverts = nv;
st1="D:\Math\Geometry\Combinatorial
Geom\Oswin\Otypes\otypes07.b08";
Print["Reading file: ",st1];
xin=ReadList[st1,{Byte,Byte}];
]
The file opens ok but the input list xin contains only 230 coordinate pairs
(byte pairs) instead of
945. The values that do read in are correct. The {Byte,Byte} seems to be the
only data type that
works here. Can anyone suggest what I am doing wrong? (Do I have to Close
st1?) Thank you for any
tips.
Steve Gray