Array of cluster with string controll??

Hello again!
Now we have another type of problem. We have an array of clusters. The cluster is built by two controlers. One is a string and the other is a menu ring. How can we get a text in the strings that stays there even if one close the program. The text is supposed to be different. Example: B1, B2 and so on. then we want to be able to choos from a menu ring different options that are coupled with B1, B2 and so on. Best regards.

Using "make current values default" will save a set of default values into all controls on the front panel. If you want the values to not just be default but be saved from run-to-run you need serialization of controls. When initializing controls (usually before the main user loop) you feed your controls data from a stored file and at the end of the program the settings are stored back (overwritten) to the same "preference" file. Reading and writing complex data forms might seem like it would be a pain to implement but Labview has a nice method for such data persistence. Use the Advanced>>Data Manipulation>>XML VI's. Flatten your control to XML using, you guest it, "Flatten to XML" then use write XML to file to save settings. Do the reverse to initialize controls by reading XML file and unflattening XML data. I have had nice results with these VIs in the past and although not the most compact data form (we are in the age of 100+GB hard drives so what's a few bytes between friends?) will give you well formatted data with almost no additional work. If you just want default data settings and not data persistence then ignore this message.
Paul
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA

Similar Messages

Array of Cluster with event structure

Hi,
I am having Array of cluster with cluster having 1 String Control , 1 Combo box, 1 Led control and 2 Numeric control. In the combo box i am having two options to select ('Binary' and 'PWM').Whenever Binary is selected then Led control has be enabled and whenever PWM is selected 2 Numeric control has to be enabled.
Is there any way to do this??
Pleas help me...
Regards
Meenatchi

actually in my application, the front panel has to have 16 rows of controls (1 string control, 1 combo box, 1 Led control, 2 numeric control).so i planned to keep all those controls in a cluster and create one array.If i didnt so i will have 16x5 controls in my front panel and i have to put 16 event cases for each combo box to do the enable and disable of controls..
is there any simple way to do this..i have attached my front panel view
Attachments:
Untitled10.vi ‏139 KB

How can I write a 1d array of cluster with 3 elements to a file?

Hi,
I have to make a "Power spectral densities" analyse from my waveform data. The results from this VI is an array of cluuster with 3 elemments. Now I want to write this array of cluster with 3 elements to a file. And later it must be able to use this file with EXCEL!!
thanks

Hello schloronzo,
make a for loop feeded with your array. Inside the for loop unbundle
the cluster, "format into string" the 3 values, adding the result to
the ones before and collect them in a shift register. Then save the
resulting string to a txt-file. If you make a good format string then
Excel is able to read your txt-file (use tab a separator and CR/LF
after each 3 values aka "csv format").
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

Write an 1d-array of cluster with 3 elements

Hi,
I have to make a "Power spectral densities" analyse from my waveform data. The results from this VI is an array of cluuster with 3 elemments. Now I want to write this array of cluster with 3 elements to a file. And later it must be able to use this file with EXCEL!!
thanks

Hi
I found some outer Forum entries about this topic.
Look at this links:
http://forums.ni.com/ni/board/message?board.id=170&message.id=49553&requireLogin=False
http://forums.ni.com/ni/board/message?board.id=170&message.id=51526&requireLogin=False
I hope this helps
Manuel

Write 1d array of cluster with 2 elements to file

HI!
I'm new at LabView so I hope the question is very simple to you:
I am using a waveform graph to display several measurements.
Now I want to save these Measuremens. The data are stored in 1d array of cluster with 2 elements.
What is the easiest way to do this??
Thanks

If you are already using waveforms you can simply wire right up to "Write Waveforms to File.vi" in the Waveform palette under Waveform File I/O.
Daniel L. Press
PrimeTest Corp.
www.primetest.com

Array access notation with strings?

I may be confused, but I thought you could use array access
notation with strings. Can someone tell me why this code doesn't
work (or suggest new code):
the code is meant to rewrite the block of text in tText at a
rate of one character per frame... (when the function is called
once per frame) but it doesn't work.

DZ-015,
> I may be confused, but I thought you could use
> array access notation with strings.
It's made for objects, actually. The array access operator,
[], allows
you to access elements from an Array instance and also lets
you access
properties from any sort of object. The "trick" it provides,
in this latter
case, is that you can refer to these properties -- within the
brackets --
with strings, so it's often used to reference objects
dynamically.
> var sWorkingText:String = tText.text;
Here you've declared a String variable and set it to the
TextField.text
property of some textfield. So far, so good.
> var sNewText:String = oPhotoText[sPageFocus];
Here, you've declared a String variable, but it seems that
you're
setting it to a property of the oPhotoText object. That's now
how this
works.
The array access operator allows you to *use* strings to get
at an
object's properties:
// functionally equivalent
someObject.property1
someObject["property" + 1];
var x:Number = 1;
someObject["property" + x];
Does that help?
David Stiller
Adobe Community Expert
Dev blog,
http://www.quip.net/blog/
"Luck is the residue of good design."

Array to cluster with adjustable cluster size

Hi all
Here I have a dynamic 1D array and I need to convert it into cluster. So I use Array to Cluster function. But I notice that the cluster size is a fix value. How can I adjust the cluster size according to the 1D array size?
Anyone pls give advise..
Thanks....

I won't disagree with any of the previous posters, but would point out a conversion technique I just recently tried and found to work well for my own particular purposes. I've given the method a pretty good workout and not found any obvious flaws yet, but can't 100% guarantee the behavior in all settings.
Anyhow, I've got a fairly good sized project that includes quite a few similar but distinct clusters of booleans. Each has been turned into a typedef, complete with logical names for each cluster element. For some of the data processing I do, I need to iterate over each boolean element in a cluster, do some evaluations, and generate an output boolean cluster. I first structured the code to use the "Cluster to Array" primitive, then auto-index over the resulting array of booleans, perform the evaluations and auto-index an output array-of-booleans, then finally convert back using the "Array to Cluster" primitive. I, too, was kinda bothered by having to hardcode cluster sizes in there...
I found I could instead use the "Typecast" primitive to convert the output array back to my cluster. I simply fed the input cluster into the middle terminal to defin! the datatype. Then the output cluster is automatically the right size and right datatype.
This still is NOT an adjustable cluster size, but it had the following benefits:
1. If the size of my typedef'ed cluster changes during development by adding or removing boolean elements, none of the code breaks! I don't have to go searching through my code for all the "Array to Cluster" primitives, identifying the ones I need to inspect, and then manually changing the cluster size on them one at a time!
2. Some of my processing functions were quite similar to one another. This method allowed me to largely reuse code. I merely had to replace the input and output clusters with the appropriate new typedef. Again, no hardcoded cluster sizes hidden in "Array to Cluster" primitives, and no broken code.
Dunno if your situation is similar, but it gave me something similar to auto-sizing at programming time. (You should test the behavior when you feed arrays of the wrong size into the "Typecast" primitive. It worked for my app's needs, but you should make sure it's right for yours.)
-Kevin P.

Easier way to convert array to cluster with named variables?

I have an array of variables, I would like to essentially unbundle that array to named variables.
I believe the only way of doing this is by converting the array to cluster (besides removing each element one by one)?
Is what I have done below the best way of doing it? seems a bit weird having to unbundle and rebundle by name.
comments appreciated.

Your problem code is actually right before the red square. Instead of the "array-to-cluster-unbudle dance", you should simply use a plain index array resized for the same number of outputs. same functionality, less convoluted.
Your wiring is a bit of a mess and it is hard to tell if the order of elements in the array is the same as in the cluster. Maybe a simple typecast to the cluster would work.

Array of cluster of arbitary type

Hi all,
Is it possible to generate an array of cluster with the following characteristic?
1. each element cluster in the array will be of different type
2. depending on the code, each element could be a different data type at different time. For example, the cluster at array[0] will be a string when the user input is one, and array[0] will be a U16 if the user input is two. The index for a particular datatype is arbitary.
Let me know. I am trying to write a subvi that will get an array of U16 convert the array to an array of cluster with string, U16, double, single, U32, etc.
Yik
Kudos and Accepted as Solution are welcome!
Solved!
Go to Solution.

That would work great. Thanks!
Yik
Kudos and Accepted as Solution are welcome!

Cluster with controls

Help me please!
I have cluster with five controls.
It's possible, that simultaneously ONLY one or two of them can be TRUE (two is max)?
For example, if first and third is TRUE, others could not be set to TRUE until one of them (first or third) will switch to FALSE.
Thanks!

Another possibility would be to filter with an event structure. See attached (LabVIEW 7.0).
LabVIEW Champion . Do more with less code and in less time .
Attachments:
TwoMax.vi ‏44 KB

How I pass a cluster with array of various data type (double, I32, string)

I have to pass from a VI to a Microsoft Visual C++ DLL, a cluster with some arrays of various data type. The problem is with Double array, that during Visual C debug is incorrect:the dimension is correct passed, but not array data. In the DLL I have inserted the C code genereted by LabVIEW. I tried to pass a cluster of only one array of double, and the results is the same. Then, I tried to pass a cluster with scalar number and the result is correct in only one case. If the double data is the first in the cluster, the result is correct; if the first is another data type, such as integer or boolean, the double data is incorrect during the debug of the DLL.
This is the code of my DLL:
// LabViewP
aram.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"
#include "LabViewParam.h"
#include "extcode.h"
BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
switch (ul_reason_for_call)
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
return TRUE;
typedef struct {
long dimSize;
double elt[1];
} TD2;
typedef TD2 **TD2Hdl;
typedef struct {
TD2Hdl elt1;
} TD1;
// This is an example of an exported variable
LABVIEWPARAM_API int nLabViewParamPass=0;
// This is an example of an exported function.
LABVIEWPARAM_API int LabViewParamPass(TD1 *pparam)
double parametro;
int i;
for (i=0;i<(**(*pparam).elt1).dimSize;i++)
parametro=(**(*pparam).elt1).elt[i];
return 42;
// This is the constructor of a class that has been exp
orted.
// see LabViewParam.h for the class definition
CLabViewParam::CLabViewParam()
return;
I use LabVIEW 7.0 and Windows XP.
Sorry for my english.
Thanks to every one for your suggestions.
Filippo

> I have to pass from a VI to a Microsoft Visual C++ DLL, a cluster with
> some arrays of various data type. The problem is with Double array,
> that during Visual C debug is incorrect:the dimension is correct
> passed, but not array data. In the DLL I have inserted the C code
> genereted by LabVIEW. I tried to pass a cluster of only one array of
> double, and the results is the same. Then, I tried to pass a cluster
> with scalar number and the result is correct in only one case. If the
> double data is the first in the cluster, the result is correct; if the
> first is another data type, such as integer or boolean, the double
> data is incorrect during the debug of the DLL.
It is hard tell for sure, but you might have alignment problems. The
key symptom
is that you can pass a cluster of big and small fine, but
small big doesn't pass correctly. You might also test this by seeing
what the size of your struct is. For Boolean and Double, sizeof()
should return nine bytes no matter what order the array is in. If you
are getting different sizes, you have two options. You can either order
them such that the sizes work, or you can build the EXE or a wrapper DLL
so that the alignment matches LV's native alignment.
Greg McKaskle

Use of Write Key VI with an array of cluster

Hi,
I wanted to use an array of clusters to define some configuration parameters for an application. Unfortunately, "Write Key VI" doesn't support the cluster type. Has anybody modified this function ("Write Key VI") to support cluster and array of cluster? If not, any clue to keep it as simple as possible?
My clusters include boolean, path, U32 and string.
Thank you,
Olivier
Solved!
Go to Solution.

OD wrote:
Couldn't log to this website. Any alternative ?
Sure see this Nugget.
I have links for other methods included but the Nugget does exactly what you are asking to do. I wrote th Nugget to entertain other developers, but in the end is serves as an example why you may want to find another approach. You'll understand what I mean once you look at that Nugget.
Parapharisng from Jurrasic Park "Just because could do something does not mean we should."
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

In the NI Library VI: Extract Numbers, the string control is automatically loaded each time the VI is opened with "Counting to five: one 2 three 4.0 five. Where is this string data coming from?

Even after deleting the string "Counting to five: one 2 three 4. five." from the string control and replacing it with another string the original string returns after the VI is saved then reopened. Where is this string data coming from? I've attached a copy of the library function. I've been able in my application to get around the problem by replacing the string control with a string constant. But I'm still curious as to what's going on.
Thanks,
Chuck
Solved!
Go to Solution.
Attachments:
Extract Numbers Test.vi ‏9 KB

Chuck,
String control has been set to default with the string you are seeing. To change this, enter the new string, right click the control and select
Data Operations>>Make Current Value Default
Now save your vi.

Search given string array and replace with another string array using Regex

Hi All,
I want to search the given string array and replace with another string array using regex in java
for example,
String news = "If you wish to search for any of these characters, they must be preceded by the character to be interpreted"
String fromValue[] = {"you", "search", "for", "any"}
String toValue[] = {"me", "dont search", "never", "trip"}
so the string "you" needs to be converted to "me" i.e you --> me. Similarly
you --> me
search --> don't search
for --> never
any --> trip
I want a SINGLE Regular Expression with search and replaces and returns a SINGLE String after replacing all.
I don't like to iterate one by one and applying regex for each from and to value. Instead i want to iterate the array and form a SINGLE Regulare expression and use to replace the contents of the Entire String.
One Single regular expression which matches the pattern and solve the issue.
the output should be as:
If me wish to don't search never trip etc...,
Please help me to resolve this.
Thanks In Advance,
Kathir

As stated, no, it can't be done. But that doesn't mean you have to make a separate pass over the input for each word you want to replace. You can employ a regex that matches any word, then use the lower-level Matcher methods to replace the word or not depending on what was matched. Here's an example: import java.util.*;
import java.util.regex.*;
public class Test
static final List<String> oldWords =
      Arrays.asList("you", "search", "for", "any");
static final List<String> newWords =
      Arrays.asList("me", "dont search", "never", "trip");
public static void main(String[] args) throws Exception
    String str = "If you wish to search for any of these characters, "
        + "they must be preceded by the character to be interpreted";
    System.out.println(doReplace(str));
public static String doReplace(String str)
    Pattern p = Pattern.compile("\\b\\w+\\b");
    Matcher m = p.matcher(str);
    StringBuffer sb = new StringBuffer();
    while (m.find())
      int pos = oldWords.indexOf(m.group());
      if (pos > -1)
        m.appendReplacement(sb, "");
        sb.append(newWords.get(pos));
    m.appendTail(sb);
    return sb.toString();
} This is just a demonstration of the technique; a real-world solution would require a more complicated regex, and I would probably use a Map instead of the two Lists (or arrays).

Connect 1 D array of cluster of 2 elements with dynamic data

Hello
The type of source is 1D array of cluster of 2 elements and the type of sink is dyanamic data. Can any one guide me how to connect these 2 elements together. Any response would be highly appreciated.
Thanks

First, this question would more appropriately be posted to the LabVIEW Board. It is not a signal conditioning issue.
The dynamic data type (DDT), sometimes referred to as the "evil dynamic data type," completely obscures the internal data structure. The only way someone could help is if you tell us what the source is expecting the internal data structure to be. The only objects which want DDT inputs are Express VIs, which are also good at obscuring thier contents. Implementing the sampe funcitonality with standard VIs might be a better approach.
You also have not completely specified the source. What are the data types of the cluster elements?
Lynn

Array of cluster with string controll??

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