Binary file attachment

Hi All,
Can Oracle B2B accept binary file attachments in message payload?

Hi Raj,
B2B can be used to transfer binary documents or binary attachments. For attachment, you need to use proper content type value. You may refer the supported values here -
http://www.b2bgurus.com/2007/11/attachment-feature-in-rosettanet-using.html
If it is required to receive docs as body of message, then for binary docs (pdf and jpeg), it may be done by enabling binary transfer at b2b -
http://www.b2bgurus.com/2008/10/pgp-encrypted-file-transfer.html
Let us know if you need any other info.
Regards,
Anuj

Similar Messages

What's the best way for reading this binary file?

I've written a program that acquires data from a DAQmx card and writes it on a binary file (attached file and picture). The data that I'm acquiring comes from 8 channels, at 2.5MS/s for, at least, 5 seconds. What's the best way of reading this binary file, knowing that:
-I'll need it also on graphics (only after acquiring)
-I also need to see these values and use them later in Matlab.
I've tried the "Array to Spreadsheet String", but LabView goes out of memory (even if I don't use all of the 8 channels, but only 1).
LabView 8.6
Solved!
Go to Solution.
Attachments:
AcquireWrite02.vi ‏15 KB
myvi.jpg ‏55 KB

But my real problem, at least now, is how can I divide the information to get not only one graphic but eight?
I can read the file, but I get this (with only two channels):
So what I tried was, using a for loop, saving 250 elements in different arrays and then writing it to the .txt file. But it doesn't come right... I used 250 because that's what I got from the graphic: at each 250 points it plots the other channel.
Am I missing something here? How should I treat the information coming from the binary file, if not the way I'm doing?
(attached are the .vi files I'm using to save in the .txt format)
(EDITED. I just saw that I was dividing my graph's data in 4 just before plotting it... so It isn't 250 but 1000 elements for each channel... Still, the problem has not been solved)
Message Edited by Danigno on 11-17-2008 08:47 AM
Attachments:
mygraph.jpg ‏280 KB
Read Binary File and Save as txt - 2 channels - with SetFilePosition.vi ‏14 KB
Read Binary File and Save as txt - with SetFilePosition_b_save2files_with_array.vi ‏14 KB

PI 7.1 Email Attachment binary file

Hi,
I am trying to attach a binary (encrypted) file to a regular mapped email (receiver adapter) before sending it.
It is similiar to attach pdf-files at the end of a mapping process.
Is there no way to attach binary files other than writing an adapter module?
Is there no generic "Attach File" module in PI 7.11?
I tried ASMA with XSLT, but the problem is, that the file is binary and the sender adapter would not read it without xml-format.
Any good idea?
thanks
hs

Hi Holger,
Just a suggestion:
1. Read the binary file using file adapter (in binary mode)
2. use a mail package and put the read content into the Content node of it. You can use this java mapping for it
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import com.sap.aii.mapping.api.AbstractTransformation;
import com.sap.aii.mapping.api.DynamicConfiguration;
import com.sap.aii.mapping.api.DynamicConfigurationKey;
import com.sap.aii.mapping.api.StreamTransformationException;
import com.sap.aii.mapping.api.TransformationInput;
import com.sap.aii.mapping.api.TransformationOutput;
import com.sap.aii.mapping.api.InputHeader;
public class JavaMapping extends AbstractTransformation {
     public void transform(TransformationInput arg0, TransformationOutput arg1) throws StreamTransformationException {
     getTrace().addInfo("JAVA Mapping Called");
     //Input payload is obtained by using arg0.getInputPayload().getInputStream()
     String inData = convertStreamToString(arg0.getInputPayload().getInputStream());
     String outData = inData
     try
     //8. The JAVA mapping output payload is returned using the TransformationOutput class
     // arg1.getOutputPayload().getOutputStream()
          arg1.getOutputPayload().getOutputStream().write(outData.getBytes("UTF-8"));
     catch(Exception exception1) { }
     public String convertStreamToString(InputStream in){
     StringBuffer sb = new StringBuffer();
     try
     InputStreamReader isr = new InputStreamReader(in);
     Reader reader =
     new BufferedReader(isr);
     int ch;
     while((ch = in.read()) > -1) {
          sb.append((char)ch);}
          reader.close();
     catch(Exception exception) { }
     return sb.toString();
Then provide the filename dynamically into the ContentType of the mail package.
I guess this should work.
Regards
Suraj

How do you open multiple binary files and plot them all on the same graph?

I have three different binary files and I want to plot all 3 of them onto a graph.
I am familiar with opening and reading a single binary file. (Thanks to the help examples!)
But to do multiple numbers at the same time? I was thinking of putting 3 different 'reading from binary file' blocks with the rest of the 'prompts', 'data type', etc.. and then connecting them on the same wire.
However, I got into a mess already when I tried to read one .bin file to dynamic data type --> spectral measurements --> graph waveform. The error was Not enough memory to complete this operation... Why is that? That didnt happen in the help example "Read Binary File.vi"... Has it got something to do with the dynamic data type?
Thank you for your time.
Jud~

Have a look at the image below and attached VI. Simply enter the different paths into the PathArray control.
R
Message Edited by JoeLabView on 07-30-2008 09:59 PM
Attachments:
multipleBinary2Graph.vi ‏18 KB
multipleBinary.PNG ‏5 KB

How can I read a binary file stream with many data type, as with AcqKnowledge physio binary data file?

I would like to read in and write physiological data files which were saved by BioPac�s AcqKnowledge 3.8.1 software, in conjunction with their MP150 acquisition system. To start with, I�d like to write a converter from different physiodata file format into the AcqKnowledge binary file format for version 3.5 � 3.7 (including 3.7.3). It will allow us to read different file format into an analysis package which can only read in file written by AcqKnowledge version 3.5 � 3.7 (including 3.7.3).
I attempted to write a reader following the Application Note AS156 entitled �AcqKnowledge File Format for PC with Windows� (see http://biopac.com/AppNotes/ app156Fi
leFormat/FileFormat.htm ). Note the link for the Mac File format is very instructive too - it is presented in a different style and might make sense to some people with C library like look (http://biopac.com/AppNotes/ app155macffmt/macff.htm).
I guess the problem I had was that I could not manage to read all the different byte data stream with File.vi. This is easy in C but I did not get very far in LabView 7.0. Also, I was a little unsure which LabView data types correspond to int, char , short, long, double, byte, RGB and Rect. And, since it is for PC I am also assuming the data to be written as �little endian� integer, and thus I also used byte swap vi.
Two samples *.acq binary files are attach to this post to the list. Demo.acq is for version 3.7-3.7.2, while SCR_EKGtest1b.acq was recorded and saved with AcqKnowledge 3.8.1, which version number is 41.
I would be grateful if you someone could explain how to handle such binary file stream with LabView and send an example to i
llustrate it.
Many thanks in advance for your help.
Donat-Pierre
Attachments:
Demo.acq ‏248 KB
SCR_EKG_test1b.acq ‏97 KB

The reading of double is also straight forward : just use a dble float wired to the type cast node, after inverting the string (indian conversion).
See the attached example.
The measure of skin thickness is based on OCT (optical coherent tomography = interferometry) : an optical fiber system send and received light emitted to/back from the skin at a few centimeter distance. A profile of skin structure is then computed from the optical signal.
CC
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Read_AK_time_info.vi.zip ‏9 KB

Issue in reading a binary file, with 'Flatten to String' data.

I'm facing issue while reading a binary file (created using LabVIEW).
I've mentioned everything (issue and method to reproduce it) within the attached VI.
Same vi is attached in 2012 and 8.0 versions.
Regards
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.
Solved!
Go to Solution.
Attachments:
Issue in VI.vi ‏26 KB
Issue in VI (Version 8.0).vi ‏43 KB

moderator1983 wrote:
crossrulz wrote:
The reading of a string from a binary file stops at a NULL character (0x00). When the first character is 0x00, you are just reading the one character. I would suggest writing to a byte array since you are doing the inverting. And then you can read as a byte array.
crossrulz:
U rocks..!!
you have hit bull's eye...!!
After playing around a little more, I think I might have misinformed you a little. If you explicitly tell it a string, it looks for the string length at the very beginning and reads that length of bytes as a string. It appears that if you implicitly tell it to read a string (not wire the data type) it reads all of the bytes directly, including the length of string you wrote.
Regardless, my advice is the same. You should just write and read using byte array. It is less conversions if you are performing your "encryption".
EDIT: Here's a snippet of the VI I was playing with to figure this out.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines
Attachments:
String Binary File.png ‏12 KB

Error when Write/read Cluster in binary file.

hi all,
I implemented a code (using the Labview example) to save and read cluster data (see attached file). The write part works properly but when I want to read the file, there is an error : "Error 4 occurred at Read from Binary File in main_save_data_V2.vi; LabVIEW: End of file encountered'.
BUT the data are correctly open. Why is there such message? any suggestions?
thank you.
Cedric
Attachments:
main_save_data_V2.vi ‏19 KB

Instead of predicting how many clusters to read, just set the count in the binary read to -1. That will read all that it can and I got no error. Here is all you need in order to read the file.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines
Attachments:
Read clusters.png ‏12 KB

Bug in LV8 : 'Save for previous version' and 'Write to Binary File' VI

Hello
I am using LabVIEW 8's revamped 'Write to Binary File' VI with a 'TRUE' boolean constant wired to the optional 'prepend array or string size?' to write non-trivial structures to a binary file. I then read the file with the 'Read from Binary File' VI and everything is fine. I don't wire anything to the 'file (use dialog)' input (don't know if this can help).
However, after saving my VI for LabVIEW 7.1, I cannot read the binary files created with the LV7 version of the VI anymore. After examining the LV7 converted version of the VI, there is a 'FALSE' boolean constant that is wired to the equivalent of the 'prepend array or string size' input, which breaks the binary format that is expected.
The attached files are LV8 and 'saved for LV7' versions of a dummy VI that writes an array of 5 integers into a binary file. To test the bug, start LV8, open the LV8 version, run it and create a 'test-lv8.bin' file, then open the LV7 version, run it and create a 'test-lv7.bin' file. Check the content of the two files : the size of the array is indeed missing from the 'test-lv7.bin' file, which can be assimilated as a bug in my opinion.
I think I found another one too : if in LV8 I wire the 'cancelled' boolean output of the 'Open/Create/Replace file' to the selector of a case structure, the 'converted to LV7' version VI will have an error, saying the Case Structure selector is not wired.
Could someone please confirm these are indeed bugs ?
Thanks in advance and have a nice day.
Eric Batut
Attachments:
Test Binary File v7-v8 LV7.vi ‏15 KB
Test Binary File v7-v8 LV8.vi ‏7 KB

I'm using LV8.6 and need to read a .bin file created in MATLAB. This file obviously does not contain the 4 byte header that LabVIEW prepends .bin files with. So when I use Read from Binary File, I get no data (I'm trying to read an array of doubles). I've tried making my .bin file both in native and big-endian format and changing the representation (double, int64, float64) but none of this works. I noted that if I create the same array in a .bin file in LabVIEW and wire a FALSE to the "prepend array or string size?", my VI for reading .bin files can't read this file either.
Any work-arounds here?
(I'll try attaching my write & read VI's)
Attachments:
ReadWriteBinFile.zip ‏19 KB

Mail adapter flat file attachment

Hi,
From my limited knowledge of XI, I know that we can send an email attachment as an .xml file or a binary file. My question is how can I send a flat file as an attachment using XI's mail adapter? If this is possible, please suggest steps how to do this as I am clueless!!
Thanks for your help...
Chandu

Hi,
check out this Blog you will be able to do it.
You can do either using Mail package or just using Mail adapter.
/people/michal.krawczyk2/blog/2005/12/18/xi-sender-mail-adapter--payloadswapbean--step-by-step
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/6d967fbc-0a01-0010-4fb4-91c6d38c5816
http://help.sap.com/saphelp_nw04/helpdata/en/2e/bf37423cf7ab04e10000000a1550b0/content.htm
Thanks,
Prakash

Has anyone experienced Apple Mail flattening .PSD file attachment when sending?

One of my students encountered the case when Apple Mail flattens .PSD file when sending an attachment.
Running latest Mac OS X 10.6.2 (10C540) Mail Version 4.2 (1077). Multi layered .PSD file 120K was saved on desktop and than attached to email. None of the Adobe applications were running at that time. After it was sent, the attached file in Send mail folder was flattened and it size dropped to 88K.
The flattened file was sent to destination. Although we could not reproduce this problem on the other computers, it always happens on this particular machine.
When the problem was reported to Apple, the answer from engineers was more disturbing than the problem itself.
They said "... it is OK to flatten the file to reduce the size of attachment when sending. It is expected email behavior". I am very troubled by this attitude from Apple. Flattening the image discards information contained in individual layers. This is actually EDITING the contents of an attachment when sending it.
Has anyone experience this problem? Also, I would appreciate feedback on Apple's position that it is OK to edit attachments when sending them withou asking the user first.

Marian,
I'm afraid you have missed the point. People send binary files via email all the time: images, video and music clips - in fact any attachment is a binary file. Underlying protocols are implementation details, a mail client may choose any form of encoding/encryption to send an attachment. However, the internet standard requires that an attached file is delivered exactly as it was sent, mail clients/servers are not allowed to take upon themselves to "optimize" attachments without the end user knowledge and permission. It creates a dangerous precedent. In this particular case my photography student had no way of knowing that for whatever reason his particular setup would flatten the image and ruin his homework.
Also, none of the protocols: FTP, SMTP or HTTP is inherently binary or MIME encoded, it depends on the settings and implementation ( Check RFC's)
I am not asking for a work around, which is trivial. I am simply trying find how serious is the problem. This is not a normal behavior, I know for certain only about two cases when it happens. With such a rare occurrence it seem to be a bug rather than a feature. That is why Apple reaction to is so surprising.
Sergei Petrov
http://spandas.com

FF thinks PDF files are binary files, doesn't give me the option to open them

I just got a new Mac, running OSX 10.7 Lion. I downloaded Firefox because I like it better than Safari. It's Firefox 7.0.1.
Aside from the fact that I can't figure out how to get all my bookmarks from the old mac to the new one, a really annoying thing is that I can't get the new Firefox to recognize PDF files as Acrobat documents. It thinks they are "binary" files, and the only option I have is to save them to disk.
I looked at the Applications preferences, and there is no entry for PDF files. I can't seem to create one. I checked the help and it says that to add a download preference you find the type of file you're interested in, click to download it, and tell it "open with" the application you want. But I don't get that option with PDF files, it doesn't let me tell it what to open it with, the only thing it allows me to do is either save to disk or cancel.

I use Internet Explorer for my browser.
A/A - I have reinstalled the latest version of AdobeReader.
When I click an attachment to view it, the first option I am given is to 'save' the file, and then the next pop up message gives me the option to either 'open' or 'view file'. The thing is that I don't want to 'save' each file to my laptop to allow me to see it. I want to be able to merely 'open' the file to view aithout actually saving it first.

Writing waveforms from Ch. 0 of niSCOPE to binary file in a multi-record setup?

Hello,
I am not very experienced with niSCOPE and writing waveform records, so I need some expert help here.
Here is my application:
I am generating a pulse train using a 6602 counter/timer. Each rising edge of this pulse train triggers an niFGEN to generate a single sawtooth waveform output to another device and, at the same time, acquiring data from Ch. 0 of an niSCOPE. I am fetching one record per rising edge of the pulse train for the niSCOPE (multi-record setup).
The attached VI is where I am at thus far. All triggering and reading/fetching of the waveforms seems to be working just fine when testing with an oscilloscope. I now need to save each waveform record along with the timestamp of its rising edge trigger to a binary file. The bottom of the VI is where my attempt is at saving the waveforms to a binary file, so the attention should be there when looking at it.
I am running LabVIEW from a computer connected to the NI PXI-Chassis using a cross-over cable.
Questions:
1.) Do I need to convert the data coming in on Ch. 0 of the niSCOPE to digital? Does it come in as analog from an oscilloscope? If I need to do this, how can I accomplish this?
2.) When I try to run an example VI to write a waveform to a binary file by choosing "My Computer" in the bottom left of the VI window, it works it saves the file just fine. When I change this to run on "PXI2", a file is not even created and I get an error on File Dialog (code# 7, I think) each time the file is attempted to be closed. This may be a stupid question, but why can I not save data to a file on my computer if running the VI on "PXI2"?
3.) Assuming the saving of each waveform to a binary file is working (read: (2) is successfully addressed), how can I also write the timestamp of the starting trigger for the waveform along with the waveform in the binary file? An example VI of how I can accomplish this would be fantastic, but I haven't been able to find one thus far.
4.) When I was messing around and trying to accomplish this, it seemed that doing this writing may slow down the entire process too much. I need to record data to the extent of the sawtooth waveform generated by the niFGEN AWG for each trigger. Is there any changes I should make to my acquisition process in the niSCOPE section so that I can read each waveform, along with keeping the timestamp for each, and write this information to a binary file?
I need to get this working quickly, so any help on this is greatly appreciated. Thanks in advance.
Attachments:
5124_update.vi ‏157 KB

Thank you so much for your reply, David. Let me try and explain my
situation and setup a little better, as well as discuss the points you
made in your reply. Beware, you may want to refill your coffee as this
post is long .
I am using an embedded controller in a PXI-1044 chassis. I now have the
chassis hooked up to our local network, and I am deploying my project
to the chassis over the network as I am also connected to the local
network. I have an oscilloscope next to me that takes as input the
pulse train for a trigger and the generated sawtooth from the niFGEN
for each trigger (rising edge of the pulse train from the 6602
counter). Just to make sure synchronization is taking place, the
sawtooth is also fed as input to the niSCOPE for acquisition.
"PXI2" is what shows up when I choose to run a VI on the PXI chassis
rather than "My Computer"; not sure why the 2 is there either, but that
is what it says. I may have tracked down the issue I was having with
writing, but more about that a little later...
The attached VI is an update, although not much has changed. My
application design is like this (keep in mind that some values for VI's
are still constants in the block diagram while others are controls on
the front panel): I am using the 6602 to generate a 1 KHz pulse train
and routing this pulse train to PXI_Trigger0/RTSI0. I am also using the
PXI_Clock (10) as a sample clock for this, and also using this same
clock as the reference clock for both the 5422 and the 5124 (as per the
synchronization help file mentioned for synchronizing multiple
devices). Both the 5422 and the 5124 are triggered by a digital rising
edge (from the pulse train) on PXI_Trigger0/RTSI0 (as it was routed
there). For each trigger, the niFGEN generates a sawtooth waveform
using a stepped trigger mode and outputs it. For each trigger, the
niSCOPE acquires data. They are both synchronous, which is tough to see
since one has its trigger source on the front panel and the other has
its trigger source on the block diagram. All devices use PXI_Clock so
they are synchronized.
The expected behavior is to only generate a single sawtooth waveform
per trigger with a certain number of sample points. I want to acquire
the same number of samples using the niSCOPE, which is what I meant by
"the extent of the waveform" in my previous post. So, should I change
the 8192 to 1000 for the number of samples for the niSCOPE? What would
you recommend for the sampling rate? I have been using 5 MHz for the
niFGEN and 5 MHz for the niSCOPE...this is how it should be done,
correct? If it is different in the VI, please let me know. For some
reason, I have to adjust all of the values each time I open it since
the default values are not the ones I want.
I want to generate and acquire one waveform per trigger (one waveform
per record). However, I want to be able to record a large number of
records so I have enabled the circular buffer-like treatment of the
acquired waveforms. The 100 or 1000 records is actually just a number I
am giving it for now to make sure it is working before recording many
more records.
As for saving the niSCOPE data, I would like to save all data in a
single file that is NOT ascii (to save space). I have been looking at
the HWS file format, and would like to use it. I think the attached VI
includes this at the bottom of the while loop. For each trigger, I
would like to save the time (as accurate as possible) that the trigger
occurred for the record/waveform, which appears to be (absoluteInitialX
- relativeInitialX) as you said in your post (thanks!). I just need to
store as much information about the waveform and time information for
it as possible with the waveform in the file. So it looks like I will
need to use the wfm info for that information, providing portions of it
as waveform attributes in the HWS VI's?
What format of data do you recommend I fetch, and will I be fetching a
"Single waveform" or "Multiple waveforms"? Should I use I32, DBL, WDT,
or other for the format? A balance between good precision in values and
time it takes to fetch/record would be best.
Given all of the above, I am having one troube with saving data to a
file. As a reminder, I am deploying the project to the chassis over the
network. When I choose a location and/or file to save the HWS data to,
I only get choices that are on the PC's hard disk (such as C:\Documents
and Settings\cgifford\...) NOT the chassis's hard disk. When I choose
something other than "C:\" I get an error that the file could not be
opened. However, when I choose "C:\" everything goes fine. The saved
data is nowhere to be found on my PC though, so I am assuming that it
is being stored on the internal 60G hard disk in the chassis that must
be named "C" by default or something!?
I have been told by phone support that I should be able to make a
direct connection with the chassis just like another PC, and should be
able to access the information on its internal hard disk in a drag and
drop fashion. I however cannot directly connect to the PXI chassis to
get the data that has been saved on the hard disk. We are running
Windows XP on the PC. We did some poking around and noticed that the
chassis is not running Windows file sharing, and only has ftp and http
running. We tried to access it using ftp, but we didn't have a username
and password to supply it. So, how can we enable Windows file sharing
on the chassis? How can I connect to it to do drag and drop to get
saved waveform data off of it? This is the main problem I am now
facing. Eventually we would like to store data to an external hard disk
connected to the chassis, which assumes that I can have access to the
internal storage to tell it to save files to the external hard disk.
For now saving it to the internal hard disk is just fine until
everything is proven to work, but I would like to get the data off of
the internal hard drive to put on another computer.
Any answers/suggestions on my above questions are greatly appreciated.
I also want to thank you for reading this long post . I eagerly await
a reply. Thanks again in advance.
Chris
Attachments:
5124_update.vi ‏143 KB

Word saving documents as binary files- can't send documents as attachments

I've had my Macbook for about 9 months. During the first 6 months, I could send attachments via email perfectly fine. After about 6 months, something happened and the files could no longer be opened after being attached. I tried sending some attachments to myself and found out that the documents were being sent as binary files.
I also backed up my documents onto an external hard drive. When I opened the documents on a Windows computer, the Word documents that I created during the first 6 months could be opened. However, the most recently created documents couldn't be opened by my computer.
I decided to do an erase and install on Saturday. Afterwards, Word was working fine and I was able to send documents as attachments. This morning (Tuesday) I tried to send attachments again and it didn't work! Again, the documents were binary files.
I'm not sure what to do because it was working fine for three days, but now it's not working anymore. I think something must have happened during those three days that corrupted my computer?
Has anyone had a similar problem? Can anyone help?
Sorry I know it was a long post but I wanted to give more information in case it would give some clues. I feel I should add that I've been having quite a few problems with my Macbook, e.g. screen freezing, DMGs not loading properly, getting some pop ups
Message was edited by: MissIndecisive
Also wanted to add that I've had my logicboard replaced recently because of problems such as freezing, so I don't think it should be a hardware problem.

Since Word is not an Apple product, you'll get better response if you use a forum dedicated to Microsoft's Mac products such as <http://groups.google.com/groups/dir?sel=33607053> rather than an Apple forum that focuses on compatibility between Macs and Windows.
Be sure to search the forum first in case someone has already had a similar question answered. You'll get your answer faster this way. Post your question in the forum if you don't find anything that helps you

Binary file save - bug in lv8 for MAC ?

Hi,
Using LV8 on Mac OSX, I found a bug concerning binary file saving (attached file).
Write an array of double in a binary file. Read it back.
If you used little endian,ok. If you used Big-endian, result is wrong (but no error).
Could a mac user replicate ?
Boris Matrot
Attachments:
bin_file_save_lv8_mac.vi ‏14 KB

Just as an additional data point, everything works fine under Windows.
(As a workaround, have you tried flattening the data for writing? I don't have a MAC, so I cannot test.)
Message Edited by altenbach on 01-19-2006 12:41 PM
LabVIEW Champion . Do more with less code and in less time .

Write to binary file

I have a relatively large 3D array (Phase Settling), which I want to store in a Binary File. The array is a 15000 point sweep (after decimation), repeated up to 48 by 48 times (in two FOR loops, one inside the other), meaning it can end up having as many as 34,560,000 data points. At the moment, I am attempting to dump that 3D array into a Binary File in one go, using the following VI. There are two possile versions of this array (both the same size as each other) and, depending on which has just been tested, they will be written to their own individual file. Once both tests have been run and their results stored, the idea was to open both files, subtract one array from the other, and store the new 3D array to another Binary File whilst also displaying this latest data elsewhere in a higher-level VI.
After its first trial run, LabVIEW presents me with an error message saying something along the lines of "LabVIEW had run out of memory". I assume it would be to do with this VI, since that's where the first error code appeared (Error Code: 2), apparently originating in a 'Write to Binary File' function.
Any ideas as to how I could get round this first hurdle, or perhaps an alternative method I could try?
Thank you.
- James
Message Edited by James Mamakos on 04-08-2010 10:07 AM
Never say "Oops." Always say "Ah, interesting!"
Attachments:
Running out of LabVIEW memory when writing to binary file.PNG ‏30 KB

Well, as shown in the attached screen-shot, the error indicator shows an error code of 2, and that the error occurred in one of the Write to Binary File functions.
However, when trying to save this particular VI after a couple of tweaks, I was presented with the following pop-up alert message:
LabVIEW: Memory is full.
Cannot save VI "Compare Amp - calculate.vi".
LabVIEW Save error code 10: Default data space.
Anyway, returning back to the main problem at hand, I've though of a couple of possible solutions...
We don't really need a particularly high resolution to the data points for the comparison, so I could convert the array doubles into an array of singles to save space.
I should be able to implement the 'Write to Binary File' for the initial arrays into the outer FOR loop, thereby reducing the amount data written in each instance by a factor of up to 48. The only problem I can foresee in this is that I'm not sure how to append 2D arrays into a binary file such that, when the file is read, they would appear as (or be easily converted into) a 3D array.
As for the 'True' case in my case structure, am I being grossly inefficient in my passing of data from one place to the next? I know there are a lot of branches (and buffers?) of 3D arrays; is there a decent way to reduce this overhead by tweaking the data paths or something?
- James
P.S. The computer I'm using has 1GB RAM.
Message Edited by James Mamakos on 04-08-2010 12:39 PM
Never say "Oops." Always say "Ah, interesting!"
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