Read/write PDM files

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• Why Photoshop doesn't support read/write of files .mpo?

  I'm really blown away that I can't find a single plugin of Photoshop that reads and saves .mpo files. Does anyone know why? And why isn't anyone talking about this format? I struggle to believe that nobody in the entire Photoshop Windows forum asked already on a total lack of Photoshop or an interest in support for .mpo files.

  If nobody knows how read/write the file .mpo directly through Photoshop, maybe someone could point me to resources for writing a plugin for this. It's a file format really very simple: there is no reason that a plugin must not already be available.

  Thanks in advance for your support.

  Jase

  Well said. In the end, it comes to the number. Development costs $, and if there is no hope to recover this cost, I doubt any software company will jump to support FTU. Now, things can change, but this depends on the number. At the same time, AVCHD is not easily supported by most of the NLE programs. Soon, the number reached a critical mass, and most of the software companies jumped on this train running.

  With the availability of the PS SDK, if anyone recognizes the need and the financial justification for this plugin, I think they will write a.

  It was similar, when struck with JPEG - 2K. It was going to be the future format/compressor. It took time to seduce the good, but when he did finally, Adobe added support. Over time, it is rather fizzled. Now, if it's still around, it's probably like a ' Goodies > additional Formats ' plugin.

  If I was on the Board of Directors of Adobe (or any other similar software company), I would ask to see the numbers, before I give my vote to continue the development.

  Fuji offers software for the DFO format? It works well?

  For me, it would be incumbent on Fuji to take the SDK and build a plug in PS, but I feel the same way on camera mfgrs., rewriting of the CODEC for video, who do not care to offer a such CODEC for editing. They leave THEIR pending clients, like the last leaf fall, in the wind. Were I have Fuji, I certainly would develop a plug-in for PS, the professional image editor more common on the Earth. They know their format, access access to the SDK and have a responsibility to their customers.

  Good luck

  Hunt

• Big against little endian - how will this affect my Performance of read/write PDM

  Hello

  I read that LABVIEW intrinsically stores data in big endian format, but the read/write of the VIs DDHN have the little-endian as a default. Simply, you wonder what is recommended for these screws TDMS and if these options affect writing / reading performance somehow?

  Hello

  The endian of data does not affect the performance of the read/write of the DDHN screw the primacy of the format is just down to personal preference when working low level with data.

  If you do not read or write the bits in a personalized way, then I would recommend leaving the endian as it is by default when reading or writing. Otherwise, use any kind you like or prefer to go through.

• open/close/read/write of files

  Open file...
  write text file...
  
  path in varchar2,
  name of file in varchar2,
  FirstLine in varchar2,
  best in varchar2)
  is
  output_file utl_file.file_type;
  Start
  fichier_de_sortie: = utl_file.fopen (path, filename, 'W');
  
  UTL_FILE.put_line (file output_file, firstline);
  UTL_FILE.put_line (output_file file, case);
  UTL_FILE.fclose (output_file);
  
  It cannot return any value?
  How this operation_?

  Mystery says:
  ORA-01031: insufficient privileges

  Ask your DBA for the appropriate privileges

• Where support (with read/write access) files should be placed on the computer target?

  I am building a LabVIEW application that will be distributed to more than one PC. I have I need to read and write in a configuration file. I need a file location that I can reach on the vast majority of computers that run Windows XP and VISTA. VISTA seems to restrict the ability of an application to create and write files to the folder program files. Where is the best place to store this file? Any suggestions will be greatly appreciated. Thanks, Dave F

  Microsoft recommends that the exact locations of a registry keys to store information for different purposes.

  These are the rules that we use in the company and they also works in VISTA and Windows 7.

  Do not click on links. Small is an excerpt from our online help and I din't had a method to convert them to plain text without having to rewrite them.

  LabVIEW and the Windows registry store information where these files are located in the file system.

• read/write of files packed text

  Hi all

  I should package text files with my application to read and write data. If I add a resources txt file in the application project in JDE, then I can read it properly. But I can't write these txt files provided with the application.

  Yes, is there a way to package a txt file with my application, but he put in a certain place in the file system: (for example file:///store/MyData), so that I can write it freely by FileConnection API?

  Hello

  You can copy the contents of your resource files in the SD card or internal memory created from the files (for example on the first start of the application). And work with them through the queue API.

  Don't forget to check if the inserted SD card and create the folder before you work with files in there.

• read/write binary file in struct

  Hi all,

  I created a profile of struct defined as follows:

  typedef struct {profile

  name char [30];
  Electric float;
  Double frequency;
  Profile of struct * next;

  }

  I can write structures in a file, but I have to do that when you try to insert a struct, you control the domain name and only if there is no other struct with this name, it is inserted into the file.
  Please help me!

  I solved it!

• Read/write file binary change greater than 128 bytes.

  Hi all, maybe a strange question, but I'm scratching my head on this one. There is undocumented behavior in the function of read/write binary file, where U8 a value greater than 128/0 x 80 get automatically converted to 0x3F value?

  I try to use LabVIEW to generate a binary file custom that we'll load in an EEPROM, so all data in the binary file is stored as values of U8. I have a "template" file, and eventually I'll take the logic implemented to replace the fields with the data from the true value. However, I am struck by the anomaly that when I just read the file in LabVIEW and then réécrirait, all the values 0x80 and more are truncated to 0x3F value. Has anyone seen this before, and is there a solution?

  I noticed writing the value 0 x 80 directly to one generates a binary file (such as a U8) 0 x 90, 0 x 70 being written in the binary file. It is also rather undesirable, as it adds additional bytes in the bytestream, and the bytes of EEPROM must be in exact locations.

  

  

  Join your data file.

  This program is to give the images below?  Are you sure that LabVIEW is to write the bytes differently?  I really doubt that.

• PDM file with automatic backup on corrupts the data.

  When I test data stream into a file to PDM using AutoSave = true, data is corrupted in the 'package' #3 and beyond.

  I write matched double/DateTime data to a TDMS file configured as TdmsWaveformLayout.PairedTimeAndSampleChannels.

  When I try to read the PDM file, for example using the sample application to drive, I get all sorts of errors. Notably, the number of timestamps is not equal the number of samples (values y). More data is corrupted. In other words, the timestamps are invalid and the sample data is essentially random.

  This happens every time I write the third package/lot and beyond. If I write a single sample, followed by another single sample, the third will be corrupted. If I write 1 kilosample, followed by 1 kilosample, sample no. # 2001 will be corrupted.

  I guess that something is very wrong in the automatic backup routine, as data are always written correctly when I explicitly save the PDM file.

  It's using MS 8.9.0.246 in Visual Studio 2008 SP1 using .NET framework 3.5 SP1 on Windows 7.

  The TDMS file is created in the following way. Note that AutoSave is set to false to avoid the bug.

  TdmsFile f = new TdmsFile (tdmsFilename, new TdmsFileOptions (TdmsFileFormat.Version20, TdmsFileAccess.ReadWrite, true, TdmsByteOrder.Native));
  
  f.AutoSave = false; Must not be set to = TRUE because of a bug in Measurement Studio!
  TdmsChannelGroupCollection channelGroups = f.GetChannelGroups ();
  
  ChannelGroup TdmsChannelGroup = new TdmsChannelGroup (...) Unique ID...) ;
  
  channelGroups.Add (channelGroup);
  f.Save (); Needed when AutoRecovery is set to false.
  TdmsChannelCollection tdmsChannels = channelGroup.GetChannels ();
  
  foreach (IDicomInstance instance in series. Instances)
  
  {
  
  	tdmsChannels.Add (new TdmsChannel (string. Format ("{0} (time) ', for example.") Signal.Name), TdmsDataType.DateTime));
  
  	tdmsChannels.Add (new TdmsChannel (string. Format ("{0}", for example.) Signal.Name), TdmsDataType.Double));
  
  }
  
  channelGroup.WaveformLayout = TdmsWaveformLayout.PairedTimeAndSampleChannels;
  

  Every 10 ms, a double array [100] happens (with information in a DateTime table clock [100]). The data is stored in the file TDMS in a simple way:

  AnalogWaveform wf = AnalogWaveform. FromArray1D (sample. Data.Samples);
  
  WF. Timing = WaveformTiming.CreateWithIrregularInterval (sample. Data.Timing);
  
  WF. ChannelName = sample. Source.Name;
  
  WF. UnitDescription = sample. Source.UnitOfMeasurement;
  
  ChannelGroup = _tdmsFile.GetChannelGroup (... TdmsChannelGroup Unique ID...) ;
  
  TdmsChannel channel = channelGroup.GetChannel (... channel... name);
  
  channelGroup.AppendAnalogWaveform(channel, wf);
  
  channelGroup.Parent.Save ();  Needed when AutoRecovery is set to false.
  
  

  This is what the TDMS file looks like in the sample player application:

  

  For those who can run in it before we are able to get a fix on, a viable solution is to turn off auto-save and save the TDMS file any time a change to the file is made manually, such as after adding channels or groups, or write data.  This will not negatively affect performance, because that's exactly what the property of automatic backup.

  It should also be noted that this problem arises when you use the layout of the TdmsWaveformLayout.PairedTimeAndSampleChannels waveform.

  I'll post back later when we have a fix for this problem.

  Sorry for the inconvenience that this may cause,

  NickB

  National Instruments

• simultaneous reading and writing on a PDM file

  I found similar discussions on here, but none that satisfied my problem. I'm running several loops within a vi, which writes data in a permanently .tdms file. Another loop to finish its task from the start in a test, and I want to transition this loop so that it accesses the file writing and started writing on a network. It also enables me to check that the data is being stored in the file and that it is corrupt.

  I started with just the basics, but when I pass the second loop to read the file that is is always written off mistakes, saying that she met at the end of the file. It does if I put the count 1, -1 or anything in between. It illuminates, however, the end of the file output.

  I have the entry in the file tdms on PDM read wired to a local variable, just as I do writing PDM, they all have both read the same thing and I get an iterations of a data value of the reading, so, apparently, file access is no problem. And I have to someone who cringed to local variables, ensure that reading and writing are not activated until the local variable is updated.

  Try to set the "group name" entry on «TDMS read» If you write more than one group, you can use "View the contents of the DDHN" in order to get a list of groups.

  Herbert

• How to read/write tdms 2.0 files with the TDM C DLL?

  Hello

  How to read/write tdms 2.0 files with the TDM C DLL?

  How consequently the datas in interlaced with the TDM C DLL mode?

  Thank you

  Confirmation: TDM C DLL always wrote the file in TDMS version 2.0.

• allow to create or write a PDM file with labview 2014

  Hello

  I need help. I'm new with LabView. I tried to create a PDM file, but it does not work. My code in the link below is really simple, but I don't know what the problem is. My code doesn't throw any errors so I don't know what to look for in the internet. Once my code is excuting, no file is created. I use LabView 2014 and my laptoop has windows 7 on it.  My question is, in all I need to do whenever I create a new VI of specific configurations that will be play/create/write a .tdms so that my code may work correctly because the writing in a .txt file works perfectly.

  Thank you and sorry for my English

  Hi bmtanguay,

  you want to run your VI on your cRIO9074?

  Where do you think your cRIO creates this file? A cRIO is a clean computer - and it has its own 'hard drive '. This is where your file is created: C partion on your cRIO!

  You cannot create a file on your Windows pc from a VI running on your cRIO!

• Read/write file in Unicode (UTF-16)

  Hi, I have a problem to write a file in Unicode (UTF-16)

  I have to read a file with LabView, change some settings and write the new data in the same file. The file uses Unicode UTF-16.

  I downloaded a few library here: https://decibel.ni.com/content/docs/DOC-10153

  I can read the file, convert the data to ASCII/UNI/UNI and then write the file. But when I open the new file with an editor like Notepad ++ there is some unexpected characters at the end of the line.

  Even read the file and write exactly the same doesn' data not work.

  I've attached an example.

  Thanks for you the kind of support.

  Right click on your functions read and write text files.  There is an option to "Convert End Of Line".  Who turned off the two functions.

  As a side not, you need not close file functions.  The functions Read and Write Text File will close the file that reference output file is not connected.

• Read/write to csv file

  Hello

  This may be a really stupid and obvious question, but I work with LabVIEW for two days only.  I'm trying to recover data to a .csv file and view it in a front panel.  I was able to do this, but I want to do is retrieve the values, then put these values in a table, and then allow the user to adjust these values, then click on a button and save the file in the same file that the values have been removed from.  I can read the values in a table and display them fine and I am able to take a picture and write new file, but I need a way to be able to use a single table that is displayed on the front panel.  Basically, what I mean is I want to get a snapshot of a .csv file and display it on the front where the user can adjust the numbers from the file and re - write in the .csv file, and close the front panel.  Is there an easy way to do this?  I apologize if this is not clear or it has been answered here before.  Remember, I'm new to all this!

  Thanks in advance.

  If you want that the user is able to change the values, you need to control and not an indicator. The problem has nothing to do with loops. If you change to a control and write in a local variable, everything should work.

• How to write the Date/time of the PDM file property

  On the page root of the PDM file, there is a predefined, property called ' Date/Time' in the first row.

  I would use it to save the timestamp when the tdms file is created. But in the help file.

  I find that the following property constant. So, how can I write to the field of property ' Date/time '?

  Property	Constant	Data type
  Name	TDMS_FILE_NAME	String (char *)
  Description	TDMS_FILE_DESCRIPTION	String (char *)
  Title	TDMS_FILE_TITLE	String (char *)
  Author	TDMS_FILE_AUTHOR	String (char *)

  Thanks for any idea or suggestion.

  You are not sure if it's exactly what you want, but have you tried that?

  CVIAbsoluteTime            CVItime, *t = NULL;
  TDMSFileHandle          deH = 0;
  
  // Create TDMS file and set some properties
  errChk (TDMS_CreateFileEx (file, TDMS_Streaming2_0, TDMS_ByteOrderNative, 0,"example.tdm", "someText", "title", "author", &deH));
  
  // ...
  
  GetCurrentCVIAbsoluteTime (&CVItime);
  errChk (TDMS_SetFileProperty (deH, "Date/Time", TDMS_Timestamp, CVItime));
  
  // ...
  
  // Save and close fileerrChk (TDMS_SaveFile (deH));TDMS_CloseFile (deH);