element of the cluster access cluster

Similar Questions

• Access and manipulate elements of the cluster

  I have a group of 4 elements. One of the elements is a ring with 4 data entry. Is it possible to manipulate these entires 4 data based on a condition?
  For example, when a condition = 1; then 3 ring entries will be disabled and grayed out. When not, all 4 entries must be enabled.

  Is it possible to get the local variable for those inputs of the ring in a cluster. or ideas?

  

  Hello

  When you right-click the control of the ring, you will have a Create-> property Node-> disabled]

  AS LONG AS you call the command is not strictly Type Def or the cluster that contains the control of the ring is not strictly of Type defined, you can use property "Disabled items []" to get the behavior programmatically.

  When a condition is true, the index numbers of items that need to be disabled for this hardware node of wire.

  Edit: I see that dan_u already answered, but I couldn't open the dan_u vi, I LV 2010.

  then attached the vi according to my explanation.

• How to replace the element in the cluster in a table?

  Hello

  I understood better choice is to initialize the array first and replace the items in a table instead of insert the new item in a table for example in a while loop.

  So I started to evaluate since I asked where I want to read a lot of measures from a txt file and display them in a XY Chart. XY graph must show Y value and corresponding value X is red if it is out of reach and green if it is in range. I found a solution to do it with an array of clusters.

  In the attached example, I have represented two different methodologies. My problem is that a superior solution does not display the contents of all measures. Can someone tell me what I am doing wrong?

  Kind regards

  Petri

  I changed your VI top so that it works. Please take a look and see what I've done. It is also much faster.

• Element of the ADF: access attribute a component when it is inside a foreach statement

  I have the following components:
  
  < af:foreach >
  < af:table binding = "#{BackingBean.table}" >
  < af:outputtext rendered = "#{BackingBean.table.activeRowKey eq thisRow}" / > "
  < / af:table >
  < / af:foreach >
  
  
  When there is only one table, it works fine.
  However, when there is more than one table, for all tables, BackingBean.table.activeRowKey always returns the actieRowKey of the last table.
  
  
  I need either to have a smart link who knows which table to return whenever I'm back there, or a way to get rid of the link by doing something like this:
  
  
  < af:foreach >
  < af:table >
  < af:outputtext rendered = "#{parentComponent.activeRowKey eq thisRow}" / > "
  < / af:table >
  < / af:foreach >
  
  The problem is that I have not found a way to get the parent component by using an expression EL (parentComponent.activeRowKey)
  
  Any Suggestions?
  
  Thanks in advance!
  
  Published by: user13362247 on December 1st, 2010 13:40

  Hello

  a table can have a defined selectionListener. He points to a managed bean. As the selection event, you have access to the item (table). I think that should do the trick

  Frank

• How to make transparent cluster keeping only the elements inside the visible cluster?

  Hello

  Can anyone suggest me how to make transparent cluster keeping only the elements inside the cluster visible in the front panel.

  Thanks in advance,

  Vinciane

  As I said, use the space bar for what is paint. This works. Trust me.

  PS You cannot link to pictures stored on your hard drive. We don't see them. You must add them as attachments and then submit the post they get uploaded to the servers of NOR.

• How to use the cluster VI elements in TestStand

  I have a LabVIEW VI, which has an output cluster containing 10 hooks and 10 Boolean values.  In TestStand 4.1.1 I inserted a VI of pass/fail in my test sequence and that related the LabVIEW VI VI of success/failure.  I have seen all the strings and Boolean values listed separately in the table of settings under the tab module.  I wanted to have each of these cluster items listed in the report, so in the value fields, I inserted Step.Result.ReportText, but elements of the cluster were not included in the report.

  I then tried to turn the cluster in a custom, data type that has been a success.  In TestStand to sub tab module to LabVIEW adapter, I created a customized data type under space corresponding to the cluster of exit from VI.   If I go in the variable pane of TestStand, I can see the custom data type and each of the 10 channels and 10 Boolean values are present in the form of individual variables.  I tried right clicking on the variables of cluster and selecting Properties and then go advanced and checking the PropFlags_IncludeInReport box, but the values of variables have not appeared in the report.

  What I want to do is to have each of the string values and Boolean values appear in the test report.  So what I am doing wrong?

  Hello

  You can use the additional result.

  You assign inhabitants out of the VI and then you can insert an Additionl result for this step. See in the parameters of the step.

  Don't forget to insert your Local in the area concerned in the additional result.

  http://forums.NI.com/NI/board/message?board.ID=330&message.ID=22838#M22838

  The link can also help

  Concerning

  Ray Farmer

• Update only one item in the cluster while avoiding race conditions

  I have a cluster called "Inputs" that has a bunch of data within all kinds of data types.

  I have several loops in the code I want each of them to update a specific element within the cluster.

  I have to get the cluster use this Bundle by name on the specific item and then rewrite in the cluster.

  This way I have racing conditions because two loops can 'be' the cluster at the same time, but when they rewrite a wiil overwrites the other.

  How can I avoid these race conditions?

  I am familiar with Globals functional if it is connected to a possible solution (I have the feeling that it is..)

  Thank you!

  I still think that my suggestion to use the value of data references would be easier. The structure of the International preliminary examination will block the concurrent access to the data cluster: no race condition.

  

  The last loop (option) shows how to query the State of the heap of data.

• [BUG] TestStand 2013 receives corrupt data to LabVIEW adapter if the cluster contains waveform array

  Hi all

  I am having trouble with the corruption of the data. My minimal test case is below.

  I have a VI that returns an array of clusters. My TestStand sequence simply call this VI and connects to its output:

  

  When I run the (with my open VI) .seq file, I can see the update of the Panel before LabVIEW with expected values:

  

  However, TestStand receives all these values. Waveform bays have the correct values, but everything else is empty / null:

  

  If I delete my typedef waveform table, all elements of the cluster are correctly registered by TestStand.

  I've attached an example of test (2013 TestStand, LabVIEW 2013) case.

  Any ideas on how to make it work?

  Hey JKSH,

  Thanks for the detailed on this report. I looked into it a little bit last week.

  I think that it is closely related to the 206892 of CAR, which describes a problem where data will not appear on the report unless a property or variable is specified for the output waveform parameter. However, this does not completely cover your case, because you see incorrect digital data in the row with the waveform of your cluster. I filed 462209 CAR for that matter, and we will investigate it more thoroughly.

  This problem only affects data that appears "below" the waveform in the cluster. In the case of the sample, if you put the waveform as the last element of the bunch, I think that it works correctly. I know that your real data could be more complex than this example, but this workaround solution would help in the meantime? You could also consider separating the waveform of the rest of the data, that would probably work too.

  As I said, please let us know, and it is classified in our system now for a developer to investigate the matter. Please let me know if solutions are not appropriate for your application, we would be happy to know a little more about your overall use case order to work around the problem.

• Write to the Cluster size in binary files

  I have a group of data, I am writing to you in a file (all different types of numeric values) and some paintings of U8. I write the cluster to the binary file with a size of array prepend, set to false. However, it seems that there are a few additional data included (probably so LabVIEW can unflatten on a cluster). I have proven by dissociation each item and type casting of each, then get the lengths of chain for individual items and summing all. The result is the correct number of bytes. But, if I flattened the cluster for string and get this length, it is largest of 48 bytes and corresponds to the size of the file. Am I correct assuming that LabVIEW is the addition of the additional metadata for unflattening the binary file on a cluster and is it possible to get LabVIEW to not do that?

  Really, I would rather not have to write all the elements of the cluster of 30 individually. Another application is reading this and he expects the data without any extra bytes.

  At this neglected in context-sensitive help:

  Tables and chains in types of hierarchical data such as clusters always include information on the size.

  Well, it's a pain.

• How does the cluster?

  Hi all

  I am subsequently helps him learn how to use the cluster to reduce the number of inputs/outputs, but it is quite confusing that how do you know which is which. It follows from the order, whether or not we have added to the cluster? I put a cluster contains 4 numbers DBL as an entry of my Subvi. I name the elements of each DBL as A, B, C, D. In the main code, I create a cluster contains 4 DBL and trying to feed on this cluster in the Sub - VI. But how do I know what number I feed in the main code is A, B, C and D?

  For example, I create a Subvi with the participation of a single cluster. The cluster has 4 numbers DBL named A, B, C and D.

  

  Now if want to feed a cluster in this sub - VI, I create a cluster and connect the 4 digits in this cluster. But if I use the bundle cluster, I need to connect the number in order thus to fill A, B, C and D. But if this Subvi was created by someone else, how can indicate the order of the elements in the cluster WAITED?

  First, you must give the elements of the cluster in the control Subvi the same names (A, B, C, D) as used in the VI call and also to ensure that the order of cluster is the same. If you are not sure fight the cluster command, you can reorder the items (right click) and select the desired command. And Yes, the initial cluster order is the order in which you have added the items.

  Generally, it is preferable that the cluster a typedef and used worldwide. This way to the typdef change is propagated to all the places where it is used.

  It is often more auto-documentent and cleaner to use together and ungroup by name. A constant of diagram of typedef wire upward 'bundle by name' to make the labels available.

• How to convert an array of string elements to a cluster with elements named different data types?

  I'm looking for more help with the conversion of an array of elements of the chain in a cluster containing elements named different data types.

  I am importing data from an Excel worksheet.  He is coming in LabVIEW as separate (channels) 3 tables: 1) Variable name, (2) three possibilities Int, double, String) data type and the value 3), with the clues in each table corresponding to a separate variable (I have about 180 variables to import).  My ultimate goal is to convert the string array of 'Value' in a cluster.  But I want the correct data type in the cluster and I also the elements of the cluster name to match with the string 'Variable name' table so that I can use the Unbundle based on the name in my main VI.

  Please see attachment a Subvi for more details.  I did the size of the new items of tables 5 for simplicity.   I realize that labels property cannot be changed during execution and I don't think I need to do.  I just want to use the production cluster (mainly the unbundle by name) to help design my main VI.  I will need to 'read' and 'write for' the cluster during execution, but I won't need to change the names of the items.

  I was also wondering if there is a better way to import data from Excel?  Is it possible to import directly into a cluster immediately rather than put everything as strings?  I have attached a Subvi showing how I currently bring in data (found on the forum somewhere).  It comes as table 2D, which I divided into 3 separate tables that I mention above.

  I am open to any suggestion.  Thank you very much.

  -Mike

  Instead of trying to create a cluster, I think I would use only variant attributes.

  

• An array of type cast to the cluster

  Is there a real difference between 'table of cluster' function, and simply type casting to a cluster?  The image below shows a simple example.  Apart from providing the names of each element of the cluster, type cast function automatically sets the size of cluster, which is a nice feature when you work with a typedef.  I really wonder if there is any downside to type casting when elements of array and cluster are the same type of data.

  Thanks in advance.

  

  Type casting man knows where I live, so my opinion is biased.  When I have to do such a conversion, which is hardly ever, but does not match ever, so I'm going with the Type Cast.  You hit the bigger points, meaningful labels and ease to spend six to seven to eleven elements with Type FED.  When I do this conversion it is usually because I have to do a magic of property whose tables do not permit (all components need to share properties with the exception of value).  Creating a table of function control Cluster is say a Clusterflop, according to the Type casting, exactly what I'm looking for.  In addition, table in the Cluster service performs a code obfuscation, is always maintained at 9 elements, and otherwise must disappear, or at least that:

  http://forums.NI.com/T5/LabVIEW-idea-exchange/remove-default-behavior-from-array-to-cluster/Idi-p/17...

  First of all, ask yourself if you really should do this, if the answer is Yes, then I say Cast of Type.

• Writing only to certain parts of the cluster in an array by reference

  Hello

  I have an array of clusters that I use as well to view and enter data, i.e. elements of the cluster are unmodifiable (disabled) controls used as indicators of "false" (numeric values, strings, LEDs) and some are normal witnesses (numerical values, buttons).

  The "indicator" part of this cluster table must be constantly updated (for example with the positions of the engines), normally by replacing the elements according to cluster in a loop and writing in the table. This can lead to conditions of race with the part 'control': If the user enters data in a 'bad' timing control, it gets immediately replaced by the old value - in this case the update process began just before the user input and completed just after the entrance of (which may be a simple click is enough) , so the old values of controls are rewritten on user controls, as the table should be rewritten as a whole.

  Now, I'm looking for a solution to this critical race condition without changing this 'mixed' approach of control/indicator (e.g. by control and indicator tables separated next to each other and paired scrolling or so - which would make it much more horrible GUI design, among other disadvantages). I know that it is possible to change the value of an element in the cluster without having to rewrite the entire cluster using the element reference. However, it's more complicated if you have an array of clusters, because you want the cluster to a certain index table and to my knowledge, there is no such property that gives you for example the reference to the item table located in an index of certain (who is a lack of long date in the table of Labview manipulation). If you change the 'value' of an element of the cluster property in a table, it seems to affect the 'last active' element of the array, at least it is correlated with the array element that was clicked on last. Maybe there's a way somehow programmatically set that ' last active ' array element and browse the table in this way (setting the flag "correspondent" elements of the cluster by reference) or maybe someone knows a solution 'Nice' and elegant?

  I hope you understand what I mean

  Thanks in advance!

  To avoid such conditions of race, make sure what you write on the Board in the same place change you and write only the data for the indicators. Practically, this means that if you have an event for the control change value, you must have another case of event in the same structure of update of the indicators (timeout or a user event) and make sure that the indicator event takes the rest of the data of the current value (for example through a terminal or a local variable or the DVR suggested Steve). Similarly, you can use the terminal control to the current value of the control for the indicators rather than depend on the event containing the correct value.

• Build the cluster array function

  Why that different types of data can feed a package, but the function Array of Cluster build only accepts one type?

  JVH

  Basically, because it does not which, according to me, you think it does. As indicated in the documentation for each component is placed in a cluster. This cluster is always an element, and the cluster is placed in a table. Because each element of an array must be of the same data type, this means that each entry this function must be of the same type to the data type of cluster is the same. In other words, you can not, for example wire an integer first entry and a string to the second entry, because this would create a cluster of an integer and a cluster of a rope, which are two different data types, and cannot be placed in a table at the same time.

• Type a table defined clusters to hold configuration data - definition of default values for each element of the array

  Hello

  I was wondering if I could get some information and opinions on the use of an array of type defined clusters to store configuration data.  I am creating a program to test several EHR and wanted to have a control of type defined for each HAD with the information needed to create the DAQmx tasks for all signals for it must HAVE.  I am eager to do so that the data are encoded in hard and not in a file that the user might spoil.

  Controls of type def are then put into a Subvi who chooses as appropriate, one based on the enumeration of Type DUT connected to a case structure.

  I have problems with the control of the defined type.  I see issues when you try to save a configuration unique to each element of the array in the array of clusters.  Somehow, it worked at first, but now by clicking on "Operations on the data--> default font of the current value ' on individual elements of the cluster or the entire cluster (array element) does not save data when I re - open the command def.  What I am doing wrong?  I'm trying to do something with the berries of the clusters that I shouldn't do?

  I enclose one of the defined reference type controls.  I tried to change it bare to see if that helped, but no luck.

  To reproduce, change the resource string for the element 0 of the array and do the new value by default.  Then close the def of type, and then reopen it.  The old value is always present in this element.  The VI is saved in LabVIEW 2012.

  The values of a typedef are not proprigated to the instances of the control. They get if created WHEN data values have changed. They will be not updated with the changes to come. You must create a VI specifically to hardcode your values or to implement a file based initialization. The base file would be much better and more flexible. If you don't want users to change the data simply encryption. There is a wedding blowfish library that you can download.