Binary file to variable

Hi,
I want to store a binary file content (it is a MS WORD file) onto a java variable (type String ?) to use this variable to create a new file identical by writing this variable value into a new file.
I tried it as follow :
1- I read a file using a fileInputString and method read
2- I got a byte array, converted it in a String and using URLEncoder produced another String
3- With this encoded String I created a java code that I displayed on System.out, It looks like :
String content=""
+"%D0%CF%11%E0%A1%B1%1A%E1%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%3E%00%03%00%FE%FF%09%00%06%00%00%00%00%00%00%00%00%00%00%00%01%00%00%00%21%00"
+"%00%00%00%00%00%00%00%10%00%00%23%00%00%00%01%00%00%00%FE%FF%FF%FF%00%00%00%00+%00%00%00%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%FF%F"
+"%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00";Now I have my binary file in a string and using URLDecoder and writing this String into a new file I must obtain a clone of the original file, but when I compare the original file with this file with command cmp I always obtain severals differences (about 10 or 12 bytes that are differents in a total of 180000) I don't know why theses two files are differents, is there a way to obtain a perfect clone ?

Hi,
I want to store a binary file content (it is a MS
WORD file) onto a java variable (type String ?) to
use this variable to create a new file identical by
writing this variable value into a new file.If you want to copy a file, never ever use Strings, use bytes!
Have a look at the IO tutorial how to read a file as a byte stream:
http://java.sun.com/docs/books/tutorial/essential/io/

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It's difficult to tell what it is, it looks like a binary
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Read Binary File - variable binary format

Hi Everyone,
I'm using the "read from binary file" subvi to interpret some data from a file. I have the code running fine if the the temp file is always the same format, however I want the "read from binary file" to adapt to different file structures based on a user input. Here's a snapshot of my current VI:
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======>
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Thanks for any suggestions!
Attachments:
Read Copy of Binary File - Static.vi ‏105 KB
Read Copy of Binary File - Variable.vi ‏105 KB

One solution is to include the File Read into the case structure. But you need to find a way to return the different types of data records as you obviously can't connect them to the same indicator.
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How to output variable names and units used in binary file

My colleague will be giving me binary files (*.dat) generated from within LabView. There are over 60 variables (columns) in the binary output file. I need to know the variable names and units, which I believe he already has set up in LabView. Is there a way for him to output a file containing the variable name and unit, so that I'll know what the binary file contains? He can create an equivalent ASCII file with a header listing the variable name, but it doesn't list the units of each variable.
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Solved!
Go to Solution.

Hi KE,
an ASCII file (probably csv formatted) is just text - and contains all data that is (intentially) written to. There is no special function to include units or whatever!
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Hi Everyone,
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Once I had the same problem, I've asked NI-support and they said to me because of different kind of reading method that that operation is impossibile to do, so the solution to solve the problem has been to create a C++ library that reads the structure from the file and makes disponible the data. After, I've called the library by "Call by library function" in my Labview software.
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One more step...
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One more step...
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Greetings from the lake of Constance, Germany
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=s=i=g=n=a=t=u=r=e= Click on the Star and see what happens :-) =s=i=g=n=a=t=u=r=e=

Hi Johann,
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juergen
=s=i=g=n=a=t=u=r=e= Click on the Star and see what happens :-) =s=i=g=n=a=t=u=r=e=
Attachments:
ResultListAsBinary.seq ‏12 KB

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Message Edited by altenbach on 07-21-2005 06:16 PM
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