Data type of waveform manipulation

Similar Questions

• issues of data type of waveform in labview

  Hello! IM creating an osciloscope in labview, but im having problems try to get a few items in waveform.

  I need to get items such as the XSCALEMAXIMUM to the type of waveform data (dark brown) not on DBL (orange).

  I already watch every single video on youtube and also gone thorugh many forums. but I still don't know how to get the data type of waveform elements.

  When I give graphics right click on wavefirn and select Create > property node > Y sacle > range > all items, if what I get

  but I need for this .

  This is what im trying to do im I can't see any conversion attempt.  then TI loks like its an option that I have not available or so.

  helpe me please!

  If you connect a waveform to a graph and then create a node property, you will get the type of waveform. If you have a connected DBL and create a node property, you will get the type DBL. Simple as that.

• How to create the type of waveform data

  Hello

  I work with the oscilloscope TDS 30xx series and I want to create the data type of waveform in the waveform of Fetch VI.

  I have problems with that. Can someone help me?

  I don't know how to data table of waveform to the creation of a data type.

  Is attached a photo of the VI and the VI himself

  Well, if you want to build a waveform of Y, dT and T0, you can still use the function named "build the waveform.

  

• Get the Data Type of queue

  I'm working my way through my first vi producer consumer and I have two questions.

  1 I am the queue data x, y samples acceleration waveform type z. The code snippet shows how to set the data type in the queue to get. It is rather ugly and disturbing, even if it seems to work.  Is there a way more elegant and beautiful to set the data type?

  2. the sampling frequency of the accelerometer is 5120 Hz.  The DAQmx Read buffer is 1024 length samples.  Therefore, it takes 200 [ms] to fill the buffer.  I put the metronome 100 [MS] to ensure that the producer is not without samples.  This means that the loop While producer will spend much of its time waiting.  Right?  Given the wait cost anything?

  In ProducerConsumerExample.vi of LabVIEW, the sampling frequency is 10000.  The size of the read buffer is 1000.  And the metronome is set to 100 [ms].  The sampling frequency of the device comes from the hardware device in the cDAQ.  100 [ms] interval comes from the PC.  It will not be a mismatch?  I would like to understand this before I put my metronome to 200 [ms].

  

  Arizona_Joe wrote:

  Then, can shed you some light on the behavior of the loop while you mentioned is not a metronome that is is punctuated by DAQmx? I think it would do a lot of rotation.

  It is not spinning as he waits inside the DAQmx Read for samples N must be obtained.  This isn't a request for data.  It takes time to collect these samples.  That length of time depends on your sampling rate and how many samples you request.  So because he is waiting inside the DAQmx Read, there is no need to add an additional wait.  Let the DAQmx Read limit the rate of the loop.

  It's actually like the loop of consumer for the consumer to the producer.  Playback of the queue will limit the rate at which that loop runs.  It should therefore no waiting.

• Timestamp data type is wrong

  The code attached is supposed to focus on a cluster and read the name and the data type of each control of the cluster.  When I put a timestamp control in the cluster it returns its data in the form of wave type, I thought timestamp has its own data type.  I need to get the type of correct data I use this to a database.  I need to be able to tell the difference between a timestamp data type and a waveform, because I do not want to insert a data with waveform data type in the database in the form of stamp and I do not want to insert a time stamp in a place where the waveform data must be.  Any ideas?

  

  One of the subVIs is password protected, and it is the one that generates the error.

  Using the properties class ID and the name class seems to work OK, producing ID = 60 and the class name = AbsTime for the timestamp and ID = 47 and name = WaveformData for waveform control.

  Lynn

• The multiplot XY graphs & Data Types

  Currently working on four tracing data sensors of pressure on a XY plot, but up to this impossible. In addition, I do not know if I use the correct data type.

  As you can see in the image below, my code is taking measures of the DAQ Assistant and proceeds to divide the data into four signals before taking their average. My predecessor was thought to build a matrix of these signals of four split with what I suppose is the timestamp. The problem is that only one set of data being plotted right now. I tried to change the order of things that I use a cluster as my data type, but I always feel to get an error.

  Recently I saw this webpage https://decibel.ni.com/content/docs/DOC-5129 for more help, but imitating the way they don't seem to work for my code.

  Can anyone help?

  All I see are 1 d arrays. A matrix in LabVIEW is special data type used for... you guessed it, matrix calculations. Do not use it interchangeably with table.

  The main problem is that you send a single cluster in the XY graph, which means a single parcel. What you want is an array of clusters. The clusters will be a beam of table 1 d of timestamps and D 1 table of measures. But it is the hard way to do it, and this means you need to keep all your data as the tracks of the loop, with a lot of unbundling, build tables and rebundling. Crossrulz wrote a great nugget on How to use a sporadic data graphic , which makes things much easier, because the chart holds the story for you. Take a look at this post, and if you want to have several plots, you can just make a table of the waveforms, as I did below. Where you see the 'random number' dice, you will put your unique measurement data you acquire every time as the iteration of the loop. You can test the program by running and clicking on the Add Point"" button.

  

• convert the money data type in a decimal format 2.

  What is the best way to convert the money data type in a decimal 2 format in ms sql 2005 for use in my applications.

  This?

  CAST (tr.depositReceivedAmount AS decimal (10, 2))

  I respectfully disagree with the idea that you must change the query column a type of 'money' data to something else.

  In most database servers, "«argent» Silver" is a data type that is designed to provide a very homogeneous behaviour with regard to the arithmetic accuracy.  In Microsoft Access, the representation is a the whole scale.  MS SQL Server, it is obviously similar.  Ditto Oracle and others.

  You like that the money data type in the database for this clarification, because "hell has no fury like an accountant looking for a bad penny."   The column of database storage formats are designed to satisfy the accountants, and it's a good thing.

  Meanwhile, you also want to take care as to exactly how you are dealing with values.  There are several points where the district could take place.  You don't have available the strongest possible manipulation of the floating of the data types in ColdFusion.  You also are somewhat at the mercy of any interface software can be between you and that SQL server, you can use.  "It is correct to all about values , but not several times."

  I suggest to round the value just before the display and user input must be two decimals.

  Then, you may need to do some things at the end of SQL server.  For example, when you update a value in the table, you may need to use logical server to explicitly truncate the value to two decimal places, as well as an update of "$ 34,56" explicitly updates the column "$34,5600.."  (This kind of thing should happen in the context of SQL Server).  You know that the user entry has exactly two significant digits, but maybe (maybe not...)! SQL server may not know this.  You want to ensure that the stored server internally represents exactly two digits, when the origin of a user input value.

  Do not err on the side of "convenience" or "which seems." good on the screen  (If you do, get ready get telephone communications of the accountants, always at inappropriate times of the night.)

• Using film as a data type time codes?

  I work in the film, and I was hoping to use numbers to help me create quotes for a VFX project (based on cost per second). I tried to create a custom data type, and it works almost out of an important obstacle. -That, even if he is HOURS: MINUTES: seconds, DURING which it is not no matter what equivalent of FRAMES (which are usually 24, 25 or 30 depending on what video format you are working in).

  I use Adobe Premiere to export a list of lots of files under a CSV file, which are fine numbers. However, manipulate these data is - I would say - impossible without the support of the video time code. Anyone working on a solution for this? Or is there a suggestion feature to me link to forward this to the team of numbers?

  Thank you very much

  You can give your comments and suggestions to the numbers > provide comments numbers in your menu.

  But everything first, perhaps you could post more details of your problem, what your imported data looks like and what result you want.

  If the imported data includes a column for the frames I think you can convert that.  In all cases, the specifics would help.

  Wayne explains how to post a screenshot in this thing.

  SG

• Work with the first HP data types?

  I'm trying to get a clear understanding of the data types of HP Premium so that I can better exploit feature internal rather than copy and paste, edit, or having to retype. However, I can't find a tutorial, guide to style "quick start" or comprehensive information on this subject anywhere. Finally, I would like to do things like the following:

  (NOTE: I only list these questions in order to better explain what I'm looking for.) "There ARE no need to answer.)

  • Pass a list of expressions (sometimes solve() returns a list) in a function such as unapply() and run it on each item, rather than interpret the list as parameters
  • Precede the value of formula 1, "Y =" and then save the result in V1
  • Understanding type (x), type (X) and ('X') - I understand that X is a floating point number; x and 'X' they return all two DOM_IDENT, but are in that they also treated the calls function?  Or 'X' becomes X and then treated as a float value?
  • Is there a better way than unapply(), to replace by X-> x to a function, a function of return?
  • For example if: F1 = X-> Sin (x)
  • NOT a function: the seizure of F1 (x) returns the expression: Sin (x)
  • IS a function: unapply entry (F1 (x), x) returns the function: x-> Sin (x)

  Is anyone know if such a guide or tutorial exist, and if so, could you please point me to it?

  Hi!, ETH:

  Try, with...

  (1) www-fourier.ujf-grenoble.fr/ ~parisse/calc/hprime.pdf

  (2) www-fourier.ujf-grenoble.fr/ ~parisse/calc/hprime2.pdf

• Simulink Inport/Outport data types

  I searched for a while and I am unable to find documentation about what types of data I need to use the inports, outport, settings and in my Simulink models.

  Is there some specific types of data that are, or are not supported?  How VeriStand to determine how to coerce data to send the model?  Also, I was under heard VeriStand uses doubles for everything but then I saw a post that says he uses of I64.

  Any clarification would be much appreciated.

  VeriStand 2013 SP1 (probably upgraded to 2016 in next year if it's relevant)

  MATLAB 2010 b and MATLAB 2012 b (currently)

  > Are there types of specific data that are, or are not supported?

  I don't remember there being any limitation of types beyond what is stated in the considerations help document.

  Considerations relating to the integration of The MathWorks, Inc. Simulink® software models (model Interface T...

  The big hiccup I remember wasn't mainly with types of configurations and data bus.

  IIRC, you can choose any numeric type desired in Simulink. The structure of the model interface that uses VeriStand will handle any type and convert it to double so that it can be consumed by the VeriStand engine.

  > How VeriStand to determine how to coerce data to send the model?

  I think the way it works is that when VeriStand interacts with the Simulink model, it gets a list and information (pointer, data type) of inports, remote villages and settings. Thus, it can capture data from the model (because it has the pointer), and it can cast its data type (because he knows the type) duplicate. If you look at the example model model interface on line 212 it might help to make things more clear on how this could work.

  C:\VeriStand\2016\ModelInterface\custom\examples\template.c

  Double USER_GetValueByDataType (void * ptr, int32_t subindex, int32_t type)
  
  {
  
  	switch (type)
  
  	{
  
  		case 0:
  
  		{
  
  			/ * double * /.
  
  			(double) return (((double *) ptr) [subindex]);
  
  		}
  
  		case 1:
  
  		{
  
  			/ * only * /.
  
  			(double) return (((float *) ptr) [subindex]);
  
  		}
  
    	}
  
  / * return NaN, ok for vxworks and pharlap * /.
  
  	uint32_t nan [2] = {0xFFFFFFFF, 0xFFFFFFFF};
  
  	return *(double*) nan;
  
  }

  I'm guessing that the full implementation of which uses VeriStand is much more complex, but I think that the idea is the same.

  > Also, I was under heard VeriStand uses doubles for everything but then I saw a post that says he uses of I64.

  VeriStand engine uses indeed of all double rooms.

  You happen to remember this post and you can share the link? I'd be curious to see where this is said and in what context.

• Custom data type

  We use a custom data type container and add variables to use in the sequence inhabitants.

  It seems that the field of the local variable names having to match domain names that they have seized originally in the custom data type container.

  We want to reuse the custom several times in the sequence container for data type and would like to have descriptive field names of their use, which changes throughout the sequence.

  Is it possible to just rename the names of the fields of a local variable is of the type, data type container custom, while maintaining the field names the original custom data type container?

  With the help of TestStand 2013

  Thank you

  Hi CC57,

  I also recommend trying a templateVariable. You can use this to create a container with a particular name that you can copy in various places in the variable pane and change the names of the properties of confined there.

• How to convert a string to a data type double

  I'm eager to take a string representation of a number and convert it to an INT64 data type to perform a function.  What can I use for this?

  Do a right click on the blockdiagram... go to programming--> string--> sting / numberconversion--> fract/expstringtonumber

• CHD: the string is used as an index of change in data type? String to double?

  Hello

  I'm new to the tiara. I'm reading the line of a channel number and then to read the data of a channel which is in the same line of another channel.

  That's why I use the SMC function but my index seems not to fit. What I need to change in the code?

  error:

  CHD (2, NOVALUE): = 785 wird die Textvariable «...» CHD (2, > N)

  Code:

   

  DIM intloop, zeilenwerte
  
  Line DIM, aktwert, index
  
  Call ChnAlloc ("zeilenwerte", lang, 1, DataTypeFloat64)          ' Create channel,  'lang' is the size of a channel
  
  index = 0
  
  index = 1 to lang
  
     index = index + 1
  
     aktwert zeit (index) =                         ' get the value that will be compared to the SOPS in the following line of code
  
     Line = PNo (myChannel, aktwert)        ' it returns the line only by comparing aktwert valued myChannel
  
     CHD (line, zeilenwerte) = intloop           '  <--->here the error. try to get the value in a line @index do String data types does not match? what do I do then?
  
  Next

  Thank you very much for your help!

  Buddhist salvation,

  It seems to me that you would be better to use "Linear Mapping" in the palette of ANALYSIS "Suitable curve", but you should be able to get your code works by passing the name of the channel in this second parameter instead of an empty string variable.  You would have noticed that if you had OPTION EXPLICIT the first line of your code - always a good idea.

  Brad Turpin

  Tiara Product Support Engineer
  National Instruments

• Added properties (Group and channel) are not a numeric data type.

  I use a use to add two groups and channel custom properties. The properties are text and digital, double and whole.

  When I create a request in the browser, I selects the custom using the drop-down list property, but has only the drop operator "=" or "<>". "" The property is displayed in the data portal is a number of float. I had this problem when I was adding properties custom by using a script. I then tried "Navigatorinstallation / my Index DataFinder/Reset/Reset", then repopulated my search box, using the use on my raw data files. At this point, all the properties of my have only the "=" or "<>" choice of operator in the query.

  It seems that my properties are digital in the data portal, but the the query string of the browser.

  Thanks in advance,

  Hi Bill,

  You don't have to delete the files.  Choose the NAVIGATOR menu "settings > My DataFinder > reset... '. "can clilck on the UPPER part of the two buttons, one called"reset the index.  Which will remove all records in database and re-index all of your data files.  If you one of these properties have already optimized, set their State not optimized before resetting the index, otherwise the optimized property data types will persist.

  If this does not help, then the problem could be in the use that you use.

  Brad Turpin

  Tiara Product Support Engineer

  National Instruments

• DLL custom data type

  I try to use a DLL in LabView that talks about an acquisition card. One of the functions requires a custom data type (MID2250_MDConfig_t) that LabView does not support by default. It is defined in the C header file as follows:

  typedef struct
  {
  int CoordsX;
  int CoordsY;
  } MID2250_PointCorrds_t;

  typedef struct
  {
  MID2250_PointCorrds_t ULPoint [4];
  MID2250_PointCorrds_t BRPoint [4];
  unsigned short u32SADThresholdValues [4];
  unsigned short u32MVThresholdValues [4];
  unsigned short u32SensitivityValues [4];
  } MID2250_MDConfig_t;

  Is there a way I can integrate this data type in LabView correctly. I saw people talking about wrapper dll on this forum but I'm a bit confused as to who. Can I create a similar cluster in LabView and pass it to the function using "node of the library call?

  abdel2 wrote:

  I try to use a DLL in LabView that talks about an acquisition card. One of the functions requires a custom data type (MID2250_MDConfig_t) that LabView does not support by default. It is defined in the C header file as follows:

  typedef struct
  {
  int CoordsX;
  int CoordsY;
  } MID2250_PointCorrds_t;

  typedef struct
  {
  MID2250_PointCorrds_t ULPoint [4];
  MID2250_PointCorrds_t BRPoint [4];
  unsigned short u32SADThresholdValues [4];
  unsigned short u32MVThresholdValues [4];
  unsigned short u32SensitivityValues [4];
  } MID2250_MDConfig_t;

  Is there a way I can integrate this data type in LabView correctly. I saw people talking about wrapper dll on this forum but I'm a bit confused as to who. Can I create a similar cluster in LabView and pass it to the function using "node of the library call?

  Since the tables are all fixed size (and not huge), they really are inline in the structure. This means that you can simulate a cluster containing many elements inside because it is the elements of the array. The first Point of the UL would be a cluster containing 4 cluster with each two int32 in it. Ditto for the second element. The third is a cluster with 4 uInt32 and so on.

  Then configure the setting to adjust the type and thread this cluster, and voila.