Gezippte TDM/TDX FIles über Anwenderbefehl laden

Hallo,
ich habe aus Platzgründen meine TDM/TDX Files gezippt.
Ich möchte aber nicht vor jedem Analysieren der Messwerte die Dateien erst von Hand entpacken und dann in DIAdem öffnen. Daher habe ich mir einen Anwenderbefehl geschrieben. Diese soll über Navigator.Events.OnFileLoading das Laden einer Datei abfangen. Daraufhin wird die Dateierweiterung der Datei geprüft. Entspricht sie der von mir vorgegebenen Form TDZ, so werden zuerst die gepackten TDM/TDX Dateien aus der TDZ in ein tempoeräres Verzeichnis entpackt und von dort aus geladen.
Der Anwenderbefehl wurde Einstellungen->Optionen->Erweiterungen->Anwenderbefehle aktiviert.
Damit ich die TDZ Datei auch im DataFinder sehe, habe ich ein DataPlugin für 'TDM Zip' erstellt. Die Prozedur ReadStore ist jedoch leer.
Beim ersten 'Laden' einer TDZ bzw. der dort gepackten TDM/TDX Dateien klappt auch alles einwandfrei. Der Anwenderbefehl wird ausgeführt.
Möchte ich jedoch eine weitere TDZ Datei laden, so erhalte ich den Fehler, dass das Laden der Datei xyz.tdz mit dem Ladeverfahren 'TDM Zip' fehlgeschlagen ist. Beim Datenimport ist das Kopieren der Massendaten aus der Datei xyz.tdz in die internen Daten fehlgeschlagen.
Benutzt DIAdem beim zweiten und folgenden Aufruf einer TDZ nur noch das DataPlugin und nicht den Anwenderbefehl?
Was muss ich ändern?
Gruß,
Frank

Hallo Frank,
Wenn Sie schon ein DataPlugin fuer die TDZ Dataein haben, wozu brauchen Sie ueberhaupt den UserBefehl? Also, laut der Fehlermeldung wuerde ich vermuten, dass das DataPlugin immer die selbe temporaere TDM und TDX Dataeien benutzt. Ich tippe darauf, wenn Sie stattdessen im DataPlugin TDM und TDX Dateien derselben Dateiname der urspruenglichen TDZ Datei (und im selben Verzeichnis) erstellen lassen, dann wird es wohl klappen.
DateiName.TDZ ==> DateiName.TDM + DateiName.TDX
Brad Turpin
DIAdem Product Support Engineer
National Instruments

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I am trying to implement an export written in C 6.0. I can make TDMS files using the DDC_ commands without any problem. But I cant figure out how to make waveform TDMS files. I figured if I added the wf_ properties I should be able to set the waveform=Yes. But it appears to be more complicated than that.
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Solved!
Go to Solution.

Hi Lindsay,
Thank you so much for your reply.
I'm not using CVI, I am using Microsoft C/C++ 6.0.
Everything is fine if I make data TDMS files, but everything I have tried to make a waveform file has failed.
The posted code has error handling cut out and you are right, i was missing the following call at the end.
DDC_SetDataValues(lphchanneltime, lpthischanneltimesarray, (unsigned int)(scansinfile/decimationfactor));
This code all works to make a TDMS data file but I have to include a separate time channel to make it graphable (not shown).
I would rather specify the wf_increment and not include the Time channel with time values for each sample.
I would have thought all I need to do is set the waveform property on each channel to yes but nothing I do changes that from "No" to "Yes"
Kind Regards,
Don

TDM Deployment File Errors

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Über das Kontextmenü von "My Computer" kann man einstellen, dass alle Dateien angezeigt werden.
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TDMS & Config Files Comparison

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For your addon question - this is why it's important to have proper error handling and a proper shutdown routine in your application.
If you have any LabVIEW errors in your application you should handle these properly and if it's deemed to be an unrecoverable error then you tell your application to exit.
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TDM Search Files

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I would agree with Jason. While this may seem like a fairly basic operation to just "list the files containing the correct information" from the eyes of the programmer, it's actually pretty detailed. In order for LabVIEW to gain access to the metadata of the files you're trying to search, a few steps are going to be involved. As Jason suggested, if you'd like to achieve this In LabVIEW, you'd have to programmatically:
Open each file
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Can I save a TDM file without its TDX data?

I have hundreds of data files that have been sorted (by date). In certain cases, I want to analyze subsets of this data in particular groupings. I would like to save these groupings in a TDM file but I don't want to another copy of the bulk data. However, I notice that if I save a TDM, it automatically saves the TDX, and I'm not sure it's possible to save/open a TDM without its same-name TDX file. Does anyone else have a similar need and/or know of a data management method that can suit my need?
Thanks.
Solved!
Go to Solution.

Hmm... But it seems that the TDMS file simply puts all the information in a single file and, in the end, is almost as big as the TDX file. What I'm trying to do is only save the meta data but not the bulk data, since I already have a copy of the bulk data in another set of TDM/TDX files.
Maybe I'm asking the wrong question. Here is a simplified example of what I'm trying to do:
I have several (let's say, 6) original TDM files. Each of these original TDM files have 20 or more channels. I've created a new TDM file, pulling out only 5 of the channels from each of the original TDM files but organizing them into 6 groups corresponding to the original 6 TDM files. From this new TDM file, I've created a TDR file where the plots are based on the 6 channel groupings. Due to this TDR to new TDM association, I think I need to save the new TDM. However, that means I now have a new giant file that contains duplicate data from the original TDM files. I don't want this duplicate data. Being very new to DIAdem, maybe I'm just going about this the wrong way because I haven't figured out the "right way" to accomplish my needs. Can anyone advise?

How to store data (in tdm files)

I'm looking for advice on how to store data in tdm/tdx files.
The main challenge is like this: At regular time intervals there is new data available (say every 10 minutes there are 10 minutes of new data available). All data is time based. So every ten minutes I may create a new tdm/tdx file containing this data segment. However, when i want to analyze the data i dont necessarily want to view 10 minutes of data from all channels, but maybe 20 hours of data from one particular channel.
The way I've achieved this so far is to manually load each 10 minute segment of this particular channel and then add these parts together. This is both time consuming and cumbersome. Is there a better way to do this that I've simply not discovered yet? Is there a better way to store data to simplify this process?
One solution is of course to save data from several 10-minute frames in one file, but seeing as there is a never ending supply of data i cant simply save all data in one giant file, it has to be split up at some point, and the problem will still remain.
One factor to have in mind here is that this is rather large amounts of data (maybe 10GB each day), so the option to simply load all the data into memory goes out the window rather quickly.
Feel free to ask if I've not made myself very clear

Hi salte,
If your test ever ended, and if you had LabVIEW 8.20 or higher, I would recommend using a TDMS file, which handles data appeands flawlessly. DIAdem 10.1 now also does data reduction and index windowing during file loading for TDM / TDMS / DataPlugin files, so that you could easily load out only the part of the file you wanted to look at. But since you describe your data acquisition as never stopping and amassing 10 GB per day, I agree that it would be impractical to use only 1 data file. So we are stuck with some number of files which each contain a part of your measurement. This approach can have advantages, since you can save operational properties for each "buffer" such as average value, dominant frequency, ambient room temperature, etc., and later on you can use the DataFinder to query out only the data buffers which meet specific conditions based on these properties. The problem remains to load and assemble data based on multiple files. This is an old problem in DIAdem, and one for which I have an efficient and I hope satisfactory workaround application. It does what you describe already doing in the minimum amount of time and with the minimum amount of user interaction, and it can be highly parametrized to suit your particular situation. The ideal way to start the application would be as part of a ResultsList custom menu. This would enable you to query out the buffers you wanted, highlight those rows in the ResultsList, right-click and choose your custom menu, and WHAM! the selected buffers for your queried channel(s) are automatically appended together in the DataPortal. Launching from a ResultsList custom menu would mean that you could skip the file dialog and just read out the data sources directly from the ResultsList selection.
Let me know what you think,
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Attachments:
Importing Data from Multiple DataPlugin Files.zip ‏198 KB

Dateihandle Problem

Hallo zusammen!
Aufgabenbeschreibung in kurz, ganz kurz:
Also ich möchte eine Textdatei einlesen, die Daten sortieren (es entstehen mehrere tdm/tdx-Files), die sortierten Daten in Layouts (pro tdm je ein tdr-File) darstellen und die Layouts zu einem PDF-Dokument zusammenfassen.
Nun hab ich mir 4 Scripte geschrieben, die all das machen.
Das 5. Script ruft die Funktionen der 4 Scripts auf und es funktioniert (olê,olê)!
Nun mein Problem:
Nun hab ich mir gedacht, das ich das ganze grafisch aufrufen lasse, dabei wird durch ein mouse-event genau die abfolge der aufrufe aus dem 5. script gestartet.
Aber leider bricht mein proggie zwischen sortieren und layouts erstelle öfter mit der Fehlermeldung 'Dateihandle Problem (Fehlernummer 6)' ab.
Es kann dann eine tdm-Datei nicht öffnen, denke die ist irgendwo noch vom Betriebssystem gesperrt.
Kann ich sie manuell freigeben? Warum geschieht es nur, wenn ich die Scripts aus der grafischen Oberfläche aktiviere?`
Ich weiss ohne quellcode ist ne Anwort immer schlecht, aber über jede Anregung zur Lösung würd ich mich freuen!!!

Hallo!
Was du mal testen kannst ob 'nervöses' rumcklicken im SUD zum Problem führt. Es gab DIAdem Versionen und Controls in denen der Event_Click asynchron abgearbeitet wurde, also ggf. mehrere gleiche Events gleichzeitig abgearbeitet werden. War m.W. bei ComboBox ein großes Problem.
Matthias
Matthias Alleweldt
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Diadem View does not reload saved data correctly

I am not sure what is going on but my data which is loaded contains multiple groups with the same channel names. This data is from a repetitive test so the data in all the files is similar. I create tabs in view for each data group and plot five charts for each data set. Everything looks good and I save the .TDV and the .TDM files. The problem comes when I try to reload the .TDV file. The data plots are all wrong with the exception of a few. They also look to be the same plots carried through all of the tabs. Not sure what is going on here but would appreciate a little help.

Hi Team Player,
We must try to reproduce the problem to find out what happens. Please,
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Gezippte TDM/TDX FIles über Anwenderbefehl laden

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