Modifying user input in for loop

Hello,
I am making a program in order to control two velmex motors. As part of my program, I have two nested for loops. The inner for loop formats a user specified input in ascii commands and the outer loop tells the program how many times to run that specific inner loop pattern.
I want to modify the program so that two motors work together in a "snake pattern". In other words, the first outer loop should take the original user input, but then the second time the outer loop runs the direction of one of the motors (all of the associated values with one motor are stored in an individual cluster and these clusters are sorted and placed into an array), should be reveresed by mulltiplying the step size * -1. The third time the outer loop runs, the direction of one the motors (the same motor) should be reveresed again so it is moving in its original direction etc.
Hope that made sense...
I have attached my code for clarification - any help would be really appreciated
Thanks,
Mridu

mnanda98 wrote:
Hi RavensFan,
Do you mean I need to wire a constant into the VISA read?
Isn't that exactly what I said?
Also I am making progess, but now when I run the program I get the error "timeout expired before the operation completed". From what I understand, the timeout would only expire if it is not picking up on the termination character, which I have put in.. Can you look at my code maybe and tell me what may be the problem?
It looks like you've set the termination character to be a carriage retrrun (decimal 13) just fine. So if you are getting a timeout error, that means you are either not sending the commands correctly and the device is not responding, or the termination character is not actually a carriage return like you said.
Do you have any software that the vendor of the device might have supplied that can prove to you that it is communicating correctly? Is any data returned in the string indicators when it finally times out?
Thanks in advance,
Mridu
And why do you still have the VISA Close inside the loop closing the port on each iteration? It belongs after the while loop.

Similar Messages

Wait for user input in for loop

I'm pretty new to labview and I'm having a hard time figuring out how to do this. Basically, I need the user to press a GO button and data aquisition will take place saving it in an array, then the program will wait for the user to press the GO button again and the data aqusition will add more values to the array, and the whole process will repeat 5 times and finally it will average the values.
To try and figure out how to do this, I tried making a program that loops 5 times and adds a random number to an array with each loop (using shift registers) but I CANNOT figure out how to make each loop iteration wait on the user to press a button. Any advice?

Hi Roger,
you can use a dialog in your for loop, or better you use an event structure to react on user inputs. If you use the event structure you can count the button press events and store them in a shift register. With a compare function you can check if your limit is reached and react on it.
Mike

How to create an user input variable for customer exit variable? - BW3.5

Hi Guru,
I have a requirement for the selection period of my reports. There are 3 possible reporting periods which should be user selectable:
1. Month: Current reporting month
2. Fiscal Year to Date
3. Project Year to Date
Here I need 2 variable to do these, 1 customer exit and 1 user input variable. I have created a variable customer exit to calculate all these requirement. But can any1 tell on how to create the user input variable for my customer exit? I need a user input variable with drop down list like below.
01-Current month
02- Fiscal Year to Date
03-Project Year to Date
I have create a new master data for this variable, but it's not working. What I need now is a standalone master data which do not need to link to any exiting records. Can any1 tell me how to create this?

Just go to the definition of the variable for which you have created a customer exit. There you will find a check box for "Ready for Input". Just tick that checkbox and the variable will be available as a selection variable in the reports selection screen.
Regards,
Yogesh

Help with creating a user input BTree for hierarchy structure

I have been trying to create code that takes a user input string
ex: a:b,c;b:g,h,j;g:k,m;b:u
note: (the above string is then stored into a string array such in the format a:bc;b:ghj;g:km;b:u after it is verified that the hierarchy order is correct)
The string is read in such that the any value before the : is a parent and its childern continue until a ; is found. Anyway verifying the sting I have accomplished and I have been able to input the string into a modified binary tree as long as there are only 2 childern per parent and graphically represents its structure of hierarchy. The problem is that each parent can have more the two childern.
I have been working with the BTree class and find its output similar to what I am wanting which would represent a hierarchy of objects (files, employees, etc...) anyway I have been stumped as to how to get the above string into a format that can then create the correct BTree output without hard code.
If any one has any suggestions on how to turn the data, in the string array into a usable format to create the correct BTree output, I would greatly appreciate it.
In the above example the string array, a:bc;b:ghj;g:km;b:u would have a desired ouput of
a
..b
....g
......k
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Thanks
Shane

OOPS! I ment to say JTree not BTree

User input in a loop

Hi,
I am trying to write a script where by a user will be prompted to enter a new value each time it loops. So far, the script only prompts me once and the it keeps using the same value over and over again instead of prompting me to insert new value.
How can i fix this. My script is below.
declare
v_count number(2):=1;
v_compno number(10);
begin
loop
select compid into v_compno from amos.componentunit
where compno=&compno;
dbms_output.put_line(v_compno);
v_count:=v_count +1;
exit when v_count=10;
end loop;
end;
Thanks in advance.

The '&compno' is a element of SQL*Plus, is not a element of PL/SQL.
On the other hand , the loop is a syntax element of PL/SQL,
SQL*Plus has no corresponding command.
Sorry, I have no idea.
But, can you try this?
SQL> set serverout on
SQL> declare
2    v_count number(2):=1;
3 begin
4    for p in (select ename,deptno from scott.emp
5               where ename in (&ename)) loop
6      dbms_output.put_line(p.ename||' belongs '||p.deptno);
7      v_count:=v_count +1;
8      exit when v_count=10;
9    end loop;
10 end;
11 /
Enter value for ename: 'SCOTT','KING'
old   5:              where ename in (&ename)) loop
new   5:              where ename in ('SCOTT','KING')) loop
SCOTT belongs 20
KING belongs 10
PL/SQL procedure successfully completed.

How to generate the User-Input XML Body for executing workflows via REST APIs: The Solution

I see that executing a workflow via REST APIs requires lot of work to be done just to prepare the right User-input XML body. Any mistake and you have some major debugging to do. Larger the number of User-Inputs, the bigger is the problem.Life is so much easier at the WFA GUI with Display names and tooltip help for User Inputs which are very easy for reading and providing the right values. I don't have any such privileges when manually preparing the User-Input XML body.It’s been asked numerous times how to provide User-Input values for type table, or Query (Multi-Select) etc. These are complex User-Input types and has lots of scope for user mistakes.I can have User-input dependency at WFA GUI which allows me to make the right selection, but while preparing my XML body I need to take care of it myself.An operator is allowed to execute workflows, but the same Display names which help him make the right user-inputs, makes it impossible for him to prepare the user-input body xml. Display names can't be used in in XML body and he can't know the exact parameter names by looking at the Display names. So he need to always contact the Admins/Architects for this. And Architects/Admins can't be expected to keep providing User-Input XML body to operators every operator. How about if I could enter all the User-Input values in my workflow execution at WFA GUI, I can do a preview which passed to my satisfaction and then I can magically get the XML body for it which I can use to execute my workflow from REST APIs from any client. It could be so very much easy for me than building my User-Input XML body manually. This is exactly what I'm going to give you right now. You open the WFA in browser, Go to your workflow, Start execution, you input values from GUI reading carefully the display names, preview it to your satisfaction and then get the XML body. Assume your workflow is called “Workflow to Print a given Message”. It’s a simple workflow with only 1 user-input Displayed as "Message to Print" Prerequisites: The following are the one-time prerequisites. You need PowerShell 3.0 on your WFA server.Import the attached Generate_Workflow_User_Input_Body_in_XML.dar in your WFA. It’s our magical command called "Generate Workflow User Input Body in XML"Add credentials of a WFA Admin/Architect in you WFA itself with Name/IP: localhostMatch: ExactType: OtherName/IP: localhostUsername: <WFA Admin/Architect Username>Password: <User Password> Steps: Suppose you have a workflow called "Workflow to Print a given Message". You want to execute it from REST apis and need to prepare the user input XML body. Select this workflow and clone it. The workflow clone is the exact copy of your original workflow word by word, input-by-input. It will open in Edit mode with name "Workflow to Print a given Message - copy".Add the command "Generate Workflow User Input Body in XML" at the beginning of your workflow. This is a must. This command need to be the first command in your cloned workflow.This command requires no input. So for its Parameters just press okay and save the workflow.You are done.Now Execute the clone workflow. You'll see all the user-inputs available to you. Make your choices as you wish. Preview it to confirm that planning is passed and u have no errors.Execute it now.You'll see that the our magical command "Generate Workflow User Input Body in XML" has failed in our clone workflow execution. Don't worry, its fate was decided to be so. But it didn't fail before giving me what I really wanted. i.e. my XML body for my real workflow. It displayed it in the GUI as well as saved it in your WFA server @ C:\temp\<workflow_name_dd_MM_yyyy_hh_mm_ss_.xmlIt also deleted all the reservations of this particular failed job. So NO major residue left to be cleaned.To summarize: Clone Your workflow and Add the command "Generate Workflow User Input Body in XML" as your first command. Start Execution, provide your User-inputs and preview it. Be satisfied and Press Okay. Now Execute it. After a few scconds this cloned workflow will fail with Error "All done. The Workflow will fail now." See the command execution logs for this command. You'll see the User-Input XML body. It has also saved the XML file at C:\temp in your WFA server. Have fun. sinhaa

Providing a new version 1.1.0 of the command "WFA Schedular" Changes made: Added conditional String Representation based on the Scheduling parameter provided. Provided check for the right number of parameters passed into the command.Added a new parameter "Expiry Date" to automatically stop the recurring execution upon expiry.Check for Posh3.0 version in code.Have Fun!! sinhaa Below example for:Schedule a workflow for recurring execution every alternate day i.e. once in 2 days at 10:30 PM starting 06-Jul-2015 (Today's date is 02-Jul-2015) . The recurring workflow execution should expire on 31-Dec-2015 and stop.

Producer Consumer & User Events with user input windows

Hello All,
I am planning to build Labview code using the Producer Consumer & User events pattern, the application needs multiple user input windows for things like personal data, feature selection etc, there could be around 15 or 20 distincts screen/panels required.
The main question from me is... Is there a best practive approach to navigating/loading from one window to another etc, and also providing a way to to retrun to the previous window.
Also I may need need to be running some slow logging and control hardware in the background while navigating some of the screens, this seems like the producer consumer vi will be running in the background while the user input causes a load/display window event.
A simple Producer Consumer multiple winjdoow example would be very welcome. Thanks.
Regards Chris

I will second Mike's suggestion to use a central VI with subpanel(s). It is usually less confusing than multiple windows. Typically, the selection/navigation mechanism is on the left of the main panel, global info (like help) on the right, and the subpanel(s) in the center.
The advantage of subpanels/subVIs is that you can launch your subVIs and keep them active in the background, even though they are not being used. This means they will keep their state information and load into the subpanel almost instantaneously the next time you need them. For a short tutorial on subpanels, check out this link. Scroll down to the fourth reply for working code. The original code posted is broken.
Communication between your VIs or loops is typically done with either queues or event structures. State information in each should be shift registers in the respective VIs. If you have the time, I would highly recommend you learn how to use LabVIEW classes. The command pattern is tailor made for this kind of application.
Finally, avoid global data if you can. Global data is anything that you can get to from anywhere (globals, functional globals, etc.). Use of these can speed your development, but can also lead to sloppy design which will cause you major problems later. If you really need globally available data, use a data value reference. It is unnamed and requires a reference, which tends to enforce better programming practice. Yes, there are instances where you truly need globally available, named data, but they are fairly rare. You should only use them if you are experienced and really know what you are doing.
This account is no longer active. Contact ShadesOfGray for current posts and information.

How to configure the schema name dynamically based on user input.

configure the schema name dynamically based on user input.
For ex:
We have two schemas:
Schema1 - base schema having 15 tables.
Schema2 - tables which is specific to modules. Having only 10 tables which is also available in Schema1
Login to application using Schema 1
Access a particlular module and select the country. Here country selection is identified.
Based on the country selection, we need to connect the schema respectively.
If the user selects France --> It should connect Schema1
If the user selects Germeny --> It should connect schema2.
Used: Eclipselink

You may want to have a different persistence unit for each country, then you just need to switch persistence units, and can put the schema in your orm.xml file.
You may also want to investigate EclipseLink multi-tenant support,
http://www.eclipse.org/eclipselink/documentation/2.5/jpa/extensions/a_multitenant.htm
You can the schema in a persistence unit in code using a SessionCustomizer and the tableQualifier.

Dynamic change in the query name based on user input

Hi Gurus,
In a scenario, country appears as a user input variable.When the user specifies his country, the same query displays Business trends' data pertaining to his own country and rest of the world(international) in two tables.The reports are developed using Web application designer.
Can the name(description) of the query be changed so that the user input value for country gets dynamically reflected in the query name like Business trends:Selected country vs International?
Regards,
Balaji

Hi Bala,
ya this can be done by text variables. create a text variable( replacement path on the country infoobject) by going to the query properties on the description.
if the user enters country value then it will be displaed on the description of the query .
assign points if useful .
regards
santosh

For Loop exits prematurely - Arrays and Shift Registers

I have attached some preliminary code (work in progress) for the RC4 encryption algorithm. For some reason the middle for loop exits prematurely. In other words it exits after 2 iterations instead of the 256 iterations that N is set to.
I thought this was not possible and therefore I am presuming I have made some not so obvious error in attempting to use a shift register with an array.
Please have a look. Thanks.
Attachments:
RC4 Encryption beta.vi ‏78 KB

You misunderstand how a for loop operates. You can either wire a number to the N terminal or you can wire an array into it with auto-indexing turned on. With an array input, the for loop will iterate equal to the size of the array. When you wire both (a practice I do not recomend), the for loop will iterate to whichever is smaller - the array size or the N terminal. Both of your for loops on the left side is creating arrays with only two elements. I suspect that what you need in both of them is a shift register instead of exiting the for loop with auto-indexing turned off.

Trouble reading user input in Mac OSX

Hi, I am writing a program in Java (1.5) for Mac OSX that requires the user to setup files and settings, then a new frame opens with a blank screen and waits for user input (a key press) to begin. I have a setup screen that works fine (seperate frame) and triggers the blank screen and the rest of the program fine as well. The problem is when I try to have the program pause for user input. For some reason, this thread is no longer responding to user input at all. I have tried with a KeyListener Interface and with System.in.read() as well as BufferedReaders, etc and there are no keypresses registered at all.
Another object does create a seperate thread to deal with closing down Quicktime elements, but the keypresses are not registering even when that thread has not been called.
Can anyone tell me what might be the problem? Is there an issue with multiple frames interfering with the KeyListener? I can post the code, if you'd like, but it's pretty involved.
Any help greatly appreciated!
Heidi

Actually, this still isn't working. I'm posting the program class (there are several supporting classes that are not in this post - SetUp opens a SetUp frame and gathers information, then calls MTSNewSwing. Start movie places a Quicktime Component into a Panel, and QTSessionCheck starts a thread that check to make sure that QT sessions are closed when neccessary). KeyPresses are stll not being registered at all.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import quicktime.*;
import quicktime.std.*;
import quicktime.app.view.*;
import quicktime.std.movies.*;
public class MTSNewSwing extends JFrame{
 public Insets getInsets() {
 Insets rm = new Insets (20, 20, 20, 20);
 return rm;
char key = 'q';
int correct = 0;
boolean kp = false;
int numberOfMovies;
ArrayList<File> moviesList = new ArrayList();
ArrayList<File> altList = new ArrayList();
 public MTSNewSwing() {
 super("Matching to Sample");
 setSize(1024, 768);
 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 setBackground(Color.black);
 getRootPane().registerKeyboardAction(new ActionListener(){
 public void actionPerformed(ActionEvent e) {
 System.out.println("keystroke"); }
 },KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,0),JComponent.WHEN_IN_FOCUSED_WINDOW);
 moviesList = SetUp.movieList;
 numberOfMovies = moviesList.size();
 int randomSampleIndex;
 int randomAlternativeIndex;
 boolean corrAltAdded = false;
 //run new trial through numOfTrials
 for (int t = 0; t < SetUp.numOfTrials; t++) {
 //clear screen
 BlankScreen bs = new BlankScreen();
 getContentPane().add(bs);
 setVisible(true);
 //put random alternatives into array list
 randomSampleIndex = (int) (Math.random() * SetUp.numOfMovies);
 File sample = (File) moviesList.get(randomSampleIndex);
 altList.add(sample);
 int correctAlternativePosition = (int) (Math.random() * SetUp.numOfAlternatives);
 for (int altPosition = 1; altPosition <= SetUp.numOfAlternatives; altPosition++) {
 if (altPosition == correctAlternativePosition) {
 altList.add(sample);
 corrAltAdded = true;
 System.out.println("correct alternative added");
 } else if (altPosition == SetUp.numOfAlternatives && corrAltAdded == false) altList.add(sample);
 else {
 do {
 randomAlternativeIndex = (int) (Math.random() *
SetUp.numOfMovies);
 } while (randomAlternativeIndex == randomSampleIndex);
 File nextAlt = (File) moviesList.get(randomAlternativeIndex);
 altList.add(nextAlt);
 System.out.println("alternative added");
 corrAltAdded = false;
 //wait for keypress to start trial
 //this is the part that still doesn't work
 //add movies to screen
 for (int i=0; i<= SetUp.numOfAlternatives; i++) {
 File file = (File) altList.get(i);
 StartMovie sm = new StartMovie();
 try {
 sm.go(file);
 } catch (Exception e) {
 e.printStackTrace();
 if (SetUp.numOfAlternatives < 4) {
 BorderLayout bdr = new BorderLayout();
 this.setLayout(bdr);
 JPanel samp = new JPanel();
 JPanel alts = new JPanel();
 BorderLayout altbdr = new BorderLayout();
 alts.setLayout(altbdr);
 if (i ==0) {
 samp.add(sm);
 this.getContentPane().add(samp, BorderLayout.NORTH);
 setVisible(true);
 System.out.println("sample added");
 } else if (i == 1) {
 alts.add(sm, BorderLayout.WEST);
 System.out.println("alt1 added");
 } else if (i == 2) {
 alts.add(sm, BorderLayout.EAST);
 System.out.println("alt2 added");
 } else if (i == 3) {
 alts.add(sm, BorderLayout.CENTER);
 System.out.println("alt3 added");
 this.getContentPane().add(alts, BorderLayout.SOUTH);
 setVisible(true);
 try {
 Thread.sleep(10000);
 } catch (InterruptedException ex) {
 ex.printStackTrace();
 continue;
 public static void main(String args[]) {
 SetUp setup = new SetUp();
}

Sum user input

hi guys, i want to know on how to sum the number from user input. For example,
Enter your input: 345
The output will be: 12
how can i do that? please help me

Here's a solution
String input = .... //user input
int some = 0;
for(int i=0;i<input.length;i++){
somme += new Integer(""+input.charAt(i)).intValue();

How to capture user input for customer exit processing?

I need to calculate the number of working days elapsed in the current fiscal quarter BASED on the USER INPUT on the reporting front. i.e., say the fiscal quarter started on 1 July 2005 and if the user enters 10 July 2005, I should get the value 8 (Assume that Monday through Friday are all workdays). If the user enters 12 July 2005, I should get 10. I have written customer exits and know how to use factory calendar, but THE CHALLENGE is how do I CAPTURE the user input and use it in my exit? During the varible definition, if I select the check box "Ready for input" then the customer exit is not being processed and unless I check that box I can't get a user entry! If I look at the import values in the customer exit, I see i_t_var_range with type rrs0_t_var_range. My strong feeling is that this parameter gets the user input, but I am unable to use it as the customer exit is not being called if I make the user to input the data. Based on the empirical evidence, I felt that user input and customer exit can not co-exist!! Please somebody prove me wrong and let me know how can I use the user input to process my "customer-exit" variable. I would really appreciate any input from the BW community here.

Hi Sameer,
Most likely, I'm missing something, but I think that the answer is very simple.
CASE I_VNAM.
WHEN 'YOUR_CUSTOMER_EXIT_VAR'.
IF I_STEP = 2. After selecting of input variable
LOOP AT I_T_VAR_RANGE INTO LOC_VAR_RANGE
WHERE VNAM = 'USER_INPUT_VAR'.
CLEAR L_S_RANGE.
L_S_RANGE-LOW = LOC_VAR_RANGE-LOW(4).
APPEND L_S_RANGE TO E_T_RANGE.
ENDLOOP.
ENDIF.
ENDCASE.
In this typical user exit coding you have a user entered value in LOC_VAR_RANGE (originally in I_T_VAR_RANGE) and you construct your user exit variable value in E_T_RANGE.
Best regards,
Eugene
Message was edited by: Eugene Khusainov

How to Block Account member in input reporting for some users?

Hi experts, i need to know if is possible to block input of values for some Users in the Account Dimension so that some users can input value in the report but other user cant do it.
I try to do this from "member access profile" but this option only allow you to define access right for one specifict parent o member.
I mean, is posible to asigned to Account Dimension a Propertie type "OWNER" like ENTITY?
For example: one user must to input value for the Account member "CASH", but other user dont, however i have to show the same input reporting for both users.
I hope understand the question, im sorry about my english
thank you in advance
Ignacio Vazquez

I would think you could do one of the following:
Either set account as a secured dimension. You would then define security profiles for all account groups and assign those to your users / teams as appropriate. Would take a while to setup initially, but if your users don't change that much it shouldn't be too difficult to manage once it's done.
Setup different input templates that only showed the accounts you wanted each group of users to see. Put the templates in different site folders and assign access to those sites as required. users would then only have access to open the template applicable to them. Would require that you basically make duplicate copies or your current template, modify and save to different site folders which could become a pain if the template requires changes (since you would now have to make the same change multiple times).
Setup a macro in the current template so that you need to enter a password to unlock the send commands for the respective accounts. I don't know if it can be setup to support multiple passwords - assuming it can, password 1 would unlock all accounts, password 2 would only unlock CASH accounts, password 3 would only unlock LIABILITY accounts, etc. You then distribute the passwords to the users as appropriate.
Hope that helps.

Asking for user input in the middle of a function

Here's my issue.
I need to launch and input window in the middle of a function for user input. Before I can continue through the function I need a response back from the user first. Psuedo code below:
function
     function begins
     pop up window is launched to ask for user input
     function continues after users submits input
     user input from pop up window is used in function return value
Let me know if you need more clarification but this is essentially what I'm attempting to do.

The way actionScript works it isn’t really designed to work that way
Is there any reason why you have to only use one function as you have written
I think you really do need to split up your code into sections that a, set up the pop-up with event listeners waiting for the input to be completed, trigger the pop up with user input, then have a handler function that then interprets the results of the user action.
Trying to force the system into a closed loop while waiting will be a bad idea.
By using a pop-up or an alert window that is set to be modal, you are effectively stopping your application doing anything else until the user input has been completed, but still not locking the app into a closed loop. Imagine what would happen if you did put the system into a closed loop, the mouse movement wouldn’t be updated, the screen wouldn’t refresh and the system wouldn’t be able to handle your user input. the reason for using async model is you are able to let the system still do all its background task (move the mouse, give inputs focus, keep the screen drawn etc) but still tell a part of your app to ‘wait for input’ before carrying on it execution of your logic
Do you come from another programming language? Maybe one that uses less of an OOP approach? I only ask, as the method you are describing is much more like how I had to program when I worked on computers years ago as an assembly programmer.
In actionscript and most other modern languages and Oss you don’t have total control of the system and cant lock it into an action as you describe.
You need to have an asynchronous approach to situations like you describe and let the system run in the back ground while you are waiting for input (or date from a server for that matter)
Please excuse me if I am telling you things you already know.
What exactly is your use case for this? Maybe if we knew exactly what you are working on I might be able to offer a solution that would make sense for your particular situation.
Hope all is going well and please feel free to contact me if you are stuck

Modifying user input in for loop

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