Writing to the cluster table

Similar Questions

• Easiest way to convert the cluster with named variables table?

  I have a table of variables, I essentially unbundle this table of named variables.

  I believe that the only way to achieve this is to convert the cluster table (not to mention that the deletion of each item one by one)?

  Is what I've done below the best way to do it? seems a little weird to unbundle and rebundle by name.

  Comments appreciated.

  

  Altenbach says:

  Maybe a simple catalogued the cluster would work.

  Of course, it does!

  

• looking for a quick convert cluster table tables N

  Hi all

  I am trying to feed a table of cluster Mathscript, but I find that the name of each element of the cluster must meet certain rules in order to avoid the compilation error. I have a bunch of fo table with 3 groups, each group have 4 elements (named "velocity [m/s]', 'acceleration',"initial position [m]"," time [We] "). I need to break down the cluster, table in 4 tables each contains all the elements for "velocity [m/s]", "acceleration", "position [m] initial ' and ' time [We]" respectively.

  For example,.

  Table 1 contains 4 items for "velocity [m/s]"

  Table 2 contains 4 items for "acceleration."

  Table 3 contains 4 items for 'position [m]. "

  Table 4 contains 4 items for "time [We]."

  What is an easy way to achieve this?

  Give the table of cluster for loop-> ungroup each one, build the table by taking all four values.

• Initialize the cluster with data types different (lots of data)

  Hello

  I have data, which are composed of different data types. First of all, I have initialize cluster with these types of data and then "print" to light (photo). In case of photo data carries 8 characters than ja 4 floats. It was easy to initialize, but here's the question: How can I do this even if I have data that look like this (interpreter):

  floating point number

  name char [32]

  Short value [16]

  What I create loooong cluster which have a fleet of 32 characters, 16 short films? Or I can create these 'paintings' in a different way?

  THX once again

  -Aa-

  I suggest using the table-cluster and configuration of the cluster size to match the size of your berries, then package these groups together.  In terms of storage of LabVIEW, there is no difference between a group of

  floating point number

  Name1 tank

  name2 tank

  ...

  short value1

  short value2

  ...

  and a bunch of

  floating point number

  -> cluster shipped from

  Name1 tank

  name2 tank

  ...

  -> cluster shipped from

  short value1

  short value2

  So you can use the cluster table to get the right sizes rather than individually create all these values in a single giant cluster.

• Oracle Clustured Index Concept is similar to the denormalized Table

  Try to understand the Scan Cluster, its necessary to understand the CLUSTER and cluster indexes
  
  Cluster in Oracle is supposed to be a collection of data in 2 tables based on common column so that the I/O data does not have to visit several blocks in 2 tables several times, because the data is stored in a single block with the common column between 2 tables as the cluster key
  
  This looks like a denormalized table, am I right to assume that.
  
  Ex:
  
  DEPT OF EMP
  EID, ENAME, DEPTID DNAME, DNO, LOC
  
  Select E.EID, E.ENAME, D.DNAME, D.LOC
  from EMP, DEPT of
  where E.DEPTID = D.DNO
  
  Now, to do mulitple visits to blocks of different data in EMP, Dept. This would affect the processing time.
  
  In order to improve it, we create a CLUSTER that is
  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
  | DEPTID | EID | ENAME | DNAME | LOC |
  
  and Cluster INDEX it based on DEPTID
  
  So now, it doesn't have to make multiple visits because all the data is stored in a single block.
  
  But that's exactly what is done in OLAP, Denormalize data.
  I must be wrong in what I am being heard on
  CLUSTER, the CLUSTER INDEX in Oracle
  
  Thank you.

  Rider wrote:
  Try to understand the Scan Cluster, its necessary to understand the CLUSTER and cluster indexes

  [Did you read documentation? | http://download.oracle.com/docs/cd/E11882_01/server.112/e10595/clustrs001.htm#ADMIN11739]:

  The cluster key is the column, or a column group, that of the cluster tables have in common.
  You specify the cluster key columns when creating the cluster. You then specify
  the same columns during the creation of each table added to the cluster. Each cluster key value is stored + *.
  Once everyone in the cluster and the clustered index, regardless of the number of rows different tables contain the value + *.

  SY.

• Remove the cluster of clusters table

  Hi I have this program where you have an array of clusters and when you press a Boolean 'Add' button, you can add clusters to the table up to a certain limit, and it is written in a spreadsheet file. I would like also to such a function when you click on 'Remove' Boolean you can remove the cluster from the table so that the new table takes place 1 old and cluster information are removed from the worksheet so file. How can I do?

  It does not need to have the cluster, use instead to build table (for best performance initialize the array and use replaces primitive subset of table). You cannot delete items in a file, but you can read the file and remove the item and he write to the file. If it is a sub VI, you add/remove items and writing to a file each time that the sub vi is called? Do not write to the spreadsheet VI file in this case, use instead write to text file primitive. See examples of LabVIEW for some useful examples on file i/o.

• 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.

• Dial the node library with cluster table feature using the pointer of table data

  Hi all.

  I am writing a wrapper of LabVIEW for an existing DLL function.

  The service was, as one of its parameters, an array of structures.  The structure is very simple, containing two integers.  I use the call library function node to access.

  In Labview, I created an array of clusters, when the cluster has two integers of 32 bits as members.  So far so good.

  Now, I have to pass this in the node library function call.  I use here in trouble.

  I used the LAVA so the topic in the knowledge base as my main sources of information, although I read a lot of topics in the forum on the subject too.

  I don't understand I could write a new function that takes as a parameter a struct with the size as the first member and an array as the second, and I might just do this and do call the regular service, but I was hoping to do more simply.

  The file function C LabVIEW generates for me the COLD Lake when I choose "To adapt to the Type" and "Data in the table pointer", the prototype he expects is:

  int32_t myFunc (handful of uint32_t, uint16_t channel,
  int32_t FIFOnumber, Sub data [], int32_t numWords, int32_t * actualLoaded,.
  int32_t * actualStartIndex);

  And the prototype of the function in my DLL is

  int myFunc borland_dll (DWORD channel, channel of Sina,)
  FIFOnumber int, struct mStruct * data, int, int numWords * actualLoaded, int * actualStartIndex);

  It sounds like a match for me, but it doesn't work (I get garbage in the data).  The topic referenced above LAVA, I realized it would work.  This isn't.

  If I have to cast the data to the pointer-to-pointer I get when I generate c code in my wiring to a CIN struct and by generating, then I seem to get what I expect. But it seems to work when I choose "pointers to handles" too, and I'm expecting data table pointer to give a different result.

  Is it possible to get it works directly, or I have to create a wrapper?  (I am currently using LabVIEW 2011, but we have customers using 2009 and 2012, if not other versions as well).

  Thank you.

  Batya

  
  

• Table of clusters and the cluster is a bar counter, how can I change the color individually?

  Table of clusters and the cluster is a bar counter, how do I change the color of the bar individual meter for each element of the array?  I just realized that you cannot change the properties of an element of the array without changing everything.  For scale, I had to make digital for each graduation of the scale indicators so that each measure meter in the table in the cluster has individual scales.  I also had to do some calculations for each barmeter to display the correct proportions of 0 to 100% on the scale.  Now, I'm stumped on the color of the bar counter.  Basically, if the value exceeds a set value, the meter bar should turn red.  It must be in a table to be infinitely scalable.

  Thank you

  Matt

  And yet anothr approach...

  Right click on the bar of > Options to fill > maximum fill.

  

  The fill color of the same color as the background color, then make the background color transparent.

  Drop a box of color BEHIND the bar and the size correctly.

  He has this strange background 3D with flat bar, but what the Hey, his relatives. If its important a custom color box.

  Ben

• How to transform a cluster of 3 elements in a table 1 d of the Cluster of 3 elements?

  I have an output of the ".vi SVFA frequency response (Phase-Mag) ' a 'group of 3 elements' and I need this fuel parameters modal 'MP_LSCE.vi', which takes a" table of cluster of 3 elements 1 D' any help appreciated. " So...

  Cluster of 3 elements---> table 1 d of the Cluster of 3 elements

  Use the Array function to build with just the single entry.

  Steve

• set items in the cluster of typedef double tables

  Hello

  I have a cluster of type def. This group includes 16 double tables, the size of the arrays are identical, but can change during execution.

  I would like to write data from table to this cluster in a loop, where I get the berries during the iterations of a PDM file. If the loop will iterate 16 times and every time I should put something in the cluster preceding the recent read double table.

  What would be the easiest solution here, since I can't use the 'Cluster to table' here and cluster table saw... ?

  Thank you!

  I don't know if it's necessarily easier, but if you change the typedef cluster so that it instead contains 16 clusters and each cluster contains a single element which is a 1 d array, then you will be able to use the Cluster to table and table to the Cluster, although you'll have to do an additional unbundling/package inside the loop for.

• Table 2d to the cluster

  Anyway is to convert a table to 2 dimensions to a cluster? im making a parking lot (which has columns and rows of parking spaces) and I want to convert it to an inorder to cluster to unbundle the components to use them for some other stuff, how do I do this?

  A cluster is a set of elements, so it makes no sense with regard to a 2D array.

  If you have a 2D array, you will need for each of the items in the index and assign them to the cluster.

  Another possibility is to reshape the 2D in a 1 d table table, and then use the table to cluster (with the number of items correctly defined in the right click menu of the function).

• Help with the cluster in table for the cluster size difference, please!

  I will admit to still hurt with the berries of LabVIEW, and as usual, the behavior in the vi attached is meaningless to me!  The attached vi shows a cluster 6 element being converted into a table, then immediately to a cluster.  The reconstructed cluster has 9 elements, even if the table size indicator display properly 6.  How to maintain the initial cluster size when converting to and then since then, a table?

  The f

  Well, if you have worked with context-sensitive help running you would see:

  "With the right button of the function and select the Size of Cluster in the context menu to set the number of items in the cluster."

  The default is new. The maximum cluster size for this function is 256. »

  You must set the size. There is no way for the function to know how many elements in the table.

• Can you attribute programmatically size when you use the table in the Cluster service cluster

  I use the table of the Cluster service.  The only way I know to the size of the cluster is to right click on the function and set the Cluster size.  But what happens if the length of my table changes?  Is there a way to make the cluster size is the number of elements in the table?  Seems like labview should do this automatically at run time.  There may be some nodes of property I don't know.

  I tried the SQL statements, but it always boils down to having to know the number of columns is in the database prior to execution.

  What I did to generate the object to be a cluster to match database fields.  My recordset is an array of objects.  Then I a vi member to build a recordset from the database and another Member vi to retrieve an array of clusters of the recordset object.  If the database changes, I have to change the subject and these two vi.  All the other Subvi call these two for the manipulation of data.  No other sub - VI have bundle and ungroup functions in them, only the vi of two members.  Thus a change in the database requires a change of control and two vi.  Not too bad.

  (I'm tooting my Horn in choosing me as accetped solution provider.  I learned this bad habit of others here on the forum.  )

• Node property of a control inside the cluster within a table

  I created a control that has a cluster to a Boolean, a string, and a digital.  Then, in my front, I created a table of these custom controls.  I wish I had access to the property of the controls inside the cluster in the table.  That is to say, I want to change the color of the Boolean or blinking, or "disable and gray" text box.  I think I'm on the right track, or maybe I'm on the wrong track.  I joined and example VI (testtray.vi) and control that I use (UUT_Display.ctl).  Please excuse the use of a flat Structure of the sequence, I know it is bad programming practices, but I just wanted to throw something together.

  Any help would be appreciated.

  Kevin

  Items in a table can have different values, BUT each element of the table share the same properties.

  "Blink" is a property when you make one in tha table blink you will all Flash.

  This restriction does not apply to clusters.

  So in theory, you could develop an XControl that has a data type is an array, but the display is actually a cluster that resembles a table. But write an XControl is not a trivial task.

  Ben