Missing FP READ (Float Array-IO).vi & FP WRITE (Float Array-IO).vi

I am a complete newbie. I am trying to use the Field Point Express vi to collect data from some Field Point modules. When I go to past the Field Point Express VI into my sheet, the applications starts looking for a couple of sub-vi's. It is missing the FP Read (Float Array-IO).vi and the FP Write (Float Array-IO).vi. I am not sure if I erased these accidentally or what. Is there a way to replace these missing VIs?

These vi's are usually located in C:\Program Files\National Instruments\LabVIEW XX\vi.lib\FieldPoint\Polymorphic Read.llb. First, check if they are present and try to manually link them when the LV is trying to load them. Otherwise, you can try to uninstall your FP drivers and then perform a re-install. The FieldPoint drivers are located in your Device Drivers CD.
Hope this helps.

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How to read a text delimited file using 2 dimentional array in java ??

hi,
I am new to java programming.. I have to do a task where in i have to read a text delimeted file in an array.. For example.. If the file is as follows
Name place Value
adi goa 20
shri mumbai 30
riya bangalr 45
I want it to be read in java so as to get an array[row][columns]
This is something i am currently upto, but cant get any further.
import java.io.BufferedReader;
import java.io.FileReader;
public class generateGML{
public static void main(String[] argv)
throws Exception{
BufferedReader fh = new BufferedReader(new FileReader("filename.txt"));
String s;
while ((s=fh.readLine())!=null){
String[] columns = s.split("\t");
String name = columns[0];
String place = columns[1];
String value = columns[2];
It reads columns,But I want it two dimentionally,as in something like matrix[row_num][column_num].
Can anyone please suggest me..

You could do the following:
String[][] array = new String[rows][];
int row_num = 0;
while ((s=fh.readLine())!=null) {
array[row_num++] = s.split("\t");
}However, you need to know ahead of time how many rows to allocate. If you allocate more than needed, you'll need to copy to a new array, or you'll need to keep track of how much is actually populated. If you allocate less than needed, you'll get an ArrayIndexOutOfBoundsException.
Another (likely better) approach is:
Do you really need it as a 2-dimensional array? Can you make a List of objects that have a name, place, and value? Then you don't need to know how big of a list to allocate ahead of time, assuming you use a list that grows itself (like ArrayList or LinkedList). Your code would be much easier to read if you could say:
String name = list.get(10).getName();instead of
String name = array[10][0];

Read a Properties File in a Static Floating Block

I am trying to read a properties file in a static floating block:
   static
      try
         Properties p = new Properties();
         String path = "/WEB-INF/classes";
         InputStream is = getClass().getResourceAsStream( path + "artimus_message_MessagInboxConfig.properties" );
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   }I got a compilation error saying that the non-static method getClass() cannot be referenced from a static context. There is almost no way to make this static floating block non-static. What should I do?

Thanks for the reply. But, huh... I do not quite
understand. Which class is MyClass?It's a generic placeholder for whichever class your put that block into. You wouldn't put it there literally--replace it with the name of the actual class. If that block is in Foo.java, then use Foo.class instead of MyClass.class.
>
Okay, this static floating block is in a class called
MessageInboxConfig.java. Then use MessageInboxConfig.class.getResourceAsStream(...)
And inside this static
floating block, I am reading a properties file and
this properties file is in the
ContextRoot/WEB-INF/classes/artimus_message_MessagInbox
onfig.propertiesHow do I read this properties file?
Properties p = new Properties();
InputStream is = MessageInboxConfig.class.getResourceAsStream("artimus_message_MessagInboxConfig.properties" );
... etc. ...You shouldn't need to specify "WEB-INF/classes," since it should be in your classpath. What you pass to getResource is a path relative to a directory in your classpath.

How do I read a formatted excel worksheet as a string array

I am using the report toolkit to read a excel worksheet as a LV string array. This works fine except that it reads the full precision of numeric cells (~10 digits of precision).
In my workbook I have the displayed precision set to 2. Is there any way to read the table as it is displayed instead of how it is internally stored? (BTW, I understand how to do this
manually by parsing the string array and limiting the precision myself but would prefer to use excel itself to determine the precision)
Solved!
Go to Solution.

sachsm,
This should allow you to get the actual displayed text from an cell or range of cells. Kind of doing a 'Paste Special' 'Values'.
Attachments:
Read Excel Displayed Text.png ‏30 KB

Reading in a binary file and displaying an array correctly

I am teaching myself Labview 7.1 and what I am trying to do is read in a text file of binary digits 10011001, 11011101 etc and then output these to a series of leds (boolean array) as well as to another array to display what was read in. I can get this to happen when I format the text file as 1,0,0,1,1,0,0,1 but then the array is 1 column by 8 rows (is this a 1by8 array) I want to read this data in as 10011001 displayed on 1 row and then the next row of the array to be 11011101, it displays 11111111 if I go above 3 digits, I know this is just a problem with binary versus decimal numbers, how can I format the input file so it is read in as 8-bit binary?
Thank you in advance,
Dan Ziehm

Read the text file as string, then pass it through "spreadsheet string to array" with "," as delimiter, %b as format and an U8 array as type. I made a quick demo, see attached code image.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
binaries.gif ‏45 KB

Read / write cluster array?

Hi NG,
is there an easy way to read and write an array of clusters? I've found
neither anything like that in my literature nor in the internet.
I't would be great if someone could help me!
Greetings
Florian

Hi,
you must use "Read File.vi" and "Write File.vi" to read/write array of clusters to the file.
When you write data to the file, you just need to wire your array to "data" input node of "Write File.vi". Also you may wire TRUE to "header" input of this VI. The header with array sizes will be added to the file so you will be able to read array back as an array, not as elements. Read help about this.
When you read data from the file, you need to wire the array of cluster constant to "byte stream type" input of "Read File.vi" to specify the type of data which will be read from file.
Also there are some examples in LabVIEW which could help you. Go to menu "Help->Examples...->Fundamentals->File I/O->Datalog File Examples"
Good luck.
Oleg Chutko.

Definition of a "NOT RELEVANT GRANT" is missing. Read long text

Dear All,
Kindly suggest me how to post migo.
During MIGO system throwing an error:
Definition of a "NOT RELEVANT GRANT" is missing. Read long text
Message no. GRANTMGMT408
Regards
Sanjeet

Hi Sanjeet,
It looks like your FI team has done config regarding Grands management and Funds Management.
Plz consult with them...
Check the SAP-Help for any doubts.
SAP Library - Grants Management
Plz check with transaction - "GMGRANTD" , if anything available.

Problem in reading data from Excel sheet to 2D string array (ActiveX & LabView).

I am trying to read data from Excel sheet to 2D string array (ActiveX & LabView). Error -2147352571 is generated (type mismatch) if cell value is "#NULL!", "#N/A" etc. What should I do?

Hello �
Is the error happening when the cell value is #NULL or #NA only?
Sometimes these errors occur because of an ActiveX object mismatch. The version of the ActiveX object might have changed or been updated since the VI was created. The VI tries to use an earlier, incompatible version of the ActiveX object.
To solve the problem, you need to link automation refnum terminal to the correct ActiveX object. To do so, right-click an automation refnum terminal and choose Select ActiveX Class»Browse from the shortcut menu. From the Type Library pull-down menu, select the latest version of the library you want to use, such as Microsoft Excel Object Library. In the Objects list, select an ActiveX object, and click the OK button. Link ea
ch automation refnum terminal in the VI and its subVIs until the run arrow is not broken. Also, you might have to replace some or all of the Invoke Nodes and Property Nodes for the ActiveX objects.
Also, I came across this Knowledgebase. The error number is slightly different but it is always good to check it out and make sure it is not your case.
Hope this helps.
S Vences
Applications Engineer
National Instruments

How do I write whole array in single write ?

Hi Jgurus,
I have fetched the record from Oracle and I wants to write those in a file . But problem is for every record in a record set file.writebytes write to a OS file. I don't want this single record write since it will write one by one. I have crores of records to fetch. Critical issue is performance. Can I picked up the rows in bunch and write to file ? I have stored (on smaller record size) all rows in array and now want to write the whole array to file in one OS write operation. Is there any way to do this ? Do any one suggest the better approach ?
For real scenario file size will become around 300MB. I did it but it writes one by one record using next() from record set.
Please advice.
--RajivK.

Can you give any example for a small String or int array. I have stucked at this point. I have wrote the array using for loop but for each iteration in a loop it writes. I have 5 lakh values stored in array. Can anybody show how do write whole array to os file in one write operation instead of getting one by one value and printing it. I am new to java please give details or sample so that I can understand.
Thanks in advance.
--RK.

Programmatically create array from common cluster items inside array of clusters

I have seen many questions and responses on dealing with arrays of clusters, but none that discuss quite what I am looking for. I am trying to programmatically create an array from common cluster items inside array of clusters. I have a working solution but looking for a cleaner approach. I have an array of clusters representing channels of data. Each cluster contains a mixture of control data types, i.e.. names, types, range, values, units, etc. The entire cluster is a typedef made up of other typedefs such as the type, range and units and native controls like numeric and boolean. One array is a “block” or module. One cluster is a channel of data. I wrote a small vi to extract all the data with the same units and “pipe” them into another array so that I can process all the data from all the channels of the same units together. It consists of a loop to iterate through the array, in which there is an unbundle by name and a case structure with a case for each unit. Within a specific case, there is a build array for that unit and all the other non-relevant shift registers pass through. As you can see from the attached snapshots, the effort to add an additional unit grows as each non-relevant case must be wired through. It is important to note that there is no default case. My question: Is there a cleaner, more efficient and elegant way to do this?
Thanks in advance!
Solved!
Go to Solution.
Attachments:
NI_Chan units to array_1.png ‏35 KB
NI_Chan units to array_2.png ‏50 KB

nathand wrote:
Your comments made me curious, so I put together a quick test. Maybe there's an error in the code (below as a snippet, and attached as a VI) or maybe it's been fixed in LabVIEW 2013, but I'm consistently getting faster times from the IPE (2-3 ms versus 5-6ms for unbundle/index). See if you get the same results. For fun I flipped the order of the test and got the same results (this is why the snippet and the VI execute the tests in opposite order).
This seems like a poster child for using the IPES! We can look at the index array + replace subset and recognize that it is in place, but the compiler is not so clever (yet!). The bundle/unbundle is a well-known "magic pattern" so it should be roughly equivalent to the IPES, with a tiny penalty due to overhead.
Replace only the array operation with an IPES and leave the bundle/unbundle alone and I wager the times will be roughly the same as using the nested IPES. Maybe even a slight lean toward the magic pattern now if I recall correctly.
If you instantly recognize all combinations which the compiler will optimize and not optimize, or you want to exhaustively benchmark all of your code then pick and choose between the two to avoid the slight overhead. Otherwise I think the IPES looks better, at best works MUCH better, and at worst works ever-so-slightly worse. And as a not-so-gentle reminder to all: if you really care about performance at this level of detail: TURN OFF DEBUGGING!

Is there an example vi for converting an array of boolean to list an array of Int based on a selected T/F state?

I would like to use arrays to minimize code.
I am trying to generate an array of int base on an array of boolean randomly selected.

You can try using 'Boolean to 0,1.vi', found in the Boolean palette: this vi converts a scalar, array or cluster of booleans to a scalar, array or cluster of word (I16 integers).
To use it, simply wire an array of booleans (indicator) to its left, and an array of integers (control) to its right et voilà.
Roberto
Proud to use LW/CVI from 3.1 on.
My contributions to the Developer Zone Community
If I have helped you, why not giving me a kudos?

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 =
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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, "
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public static String doReplace(String str)
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How to write & search array data in a file

hi
Can anyone give me an idea about writing an array into a file by placing
each array element in a line and how to search an array element
from that file.
Thanks in advance

Well, you can serialize any object - and of course re-read it.
See http://java.sun.com/j2se/1.5.0/docs/api/java/io/ObjectOutputStream.html for an example.
The easiest way would be to create an encapsulating object, which you then fill with any data you want to serialize. For example:
class mySerializableContainer implements Serializable{
public int[][] myArray;
public String name;
}All you have to do, is to make sure that every attribute you want to serialize also includes the Serializable interface.
So, you don't write one Array after another in your file, but only one object - but make this object as flexible as you need to.

Write interger array in a file

I want to write in array of integers in a file. After running the code below, my file contains the wrong character. what can be the problem?
public class Main {
public static void main(String[] arguments) {
byte[] data = { 71, 73, 70};
try {
FileOutputStream file = new FileOutputStream("output.txt");
for (int i = 0; i < data.length; i++)
file.write(data);
} catch (IOException e) {
System.out.println("Error -- " +e.toString());

There isn't really a problem, G=71, I=73 and F=70, each byte is a letter.
If you want to write the value rather than the character you could do this:
file.write(Character.getNumericValue((data)));

Array-elements depending on which array-element one choose before

Hello!
Now we have perhaps an easy problem... we have from the beginning a text-file that we pick out some of the columns that we display on the frontpanel. This forms an array of cluster with the different columns in. Then one is able to choose one of these elements of the array. There are moore values that belongs to each elements but these we do not want to display, so that is why we picked them out from the array and put them in another array that we thought we could connect in some way to the first array... now the problem: when one choose an element of the first array we want the other array to pick out the value with the same index. I should mension that we build an array of the choosen elements too...
Any tip or help would be nice :-) best regards!

First, you must change your K-value array to a control so you can read from it. Then you must make your Array of Signals into a 2D array to hold the signal and the value in separate columns. Now look at the attached vi. It will put the signal in column 0 and the K-value in column 1 for each signal selected from Signallist.
- tbob
Inventor of the WORM Global
Attachments:
array-element[1].vi ‏47 KB

Missing FP READ (Float Array-IO).vi & FP WRITE (Float Array-IO).vi

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