Can I display Hex wave in Labview?

Can I display Hex wave in Labview(not only Binary wave)? Is there any
way to do that? If I can show you the hex wave graph , you will know
what I mean more clearly. But I can't put it here. Hope you all know.

> If I can post an image , things would be better to understand.
> I don't mean to display digitals in Hex ways but to display it in a
> special way but usually used in the timing analysis of digital signal.
> some like the following graph.
> __________________ ________ _____________ ________________________
> _______
> \/ \/ \/
> \/
> ___9F_____________/\___8A___/\_____12______/\________5C______________/\___6D__
>
You don't say what version you are using, but I believe that starting
with LV6.0 there is a graph in the palette called the digital graph. It
can show group lines/busses and the value of the bus can be shown in
various numeric formats including hex.
Greg McKaskl
e

Similar Messages

Query regarding hex format in labview

hello,
I am getting hex data in labview in the format xxxx xxxx xxxx xxxx and i am trying to convert it into number format..so is this hex format valid or do i need to remove the spaces between them before conversion to a number?..any help would be appreciated...
-innovator81

Innovator,
This can go on forever unless you are more specific (see also your other thread).
You need to distiguish what you see and what the underlying data is.
If your string display is set to HEX display, you don't have any spaces and each pair of the letters 00-FF represent one byte in your raw string. LabVIEW displays it strucured with spaces to help the eyes, but your data does NOT contain any spaces. This is a purely cosmetic property of the text indicator if set to HEX display.
If your string display is set to normal and you see data in the form XXXX XXXX XXXX ..., you real data is a humanly readable hex formatted ASCII string.
You need to understand the difference between these two cases!
LabVIEW Champion . Do more with less code and in less time .

How can I convert a wave file to a jpeg file (picture) is it possible???

Hello:
How can I convert a wave file to a jpeg file (picture) is it possible???

zuckini;
I am pretty sure you know, but just to be completely sure: a wave is (usually) sound signal and a jpeg file is an image.
If you mean how to display the wave signal in a graph and then save the graph as a jpeg file, then just drop a graph indicator in the control panel, wire the signal. Check any of the example shipped with LabVIEW on how to do this. To get the image, drop a graph indicator's invoke node in the block and select "Get Image". Check this page for detailed information.
If you have something else in mind, please reply to this message with additional information about the wave signal, the image, etc.
Regards;
Enrique
www.vartortech.com

How can i display Waveform chart in a subpanel using Vi templates.

Hi All
I am new to Labview hence need some help. I am trying to develop an application which reads some data from a Wireless Sensor Network (WSN). The WSN consists of base station connected to the USB port which recieves data from other sensor nodes. The data comes in a certain format. Node name, temperature reading, humidity reading etc. I want to read the data from the serial port and based on the Node name, i want to display the information for each node in s separate window or subpanel etc. So if a new node is detected then a new window is created for that node. Since all the nodes have the same sensors on board i only need a one template. I can read the data using the serial port, parse the data to detect which node it is and also what the sensor readings are. I have created a template VI for the sensor node. I am having problems in displaying the template VIs in a subpanel. I can succesfully display a Waveform graph in the subpanel but i am having problems in displaying a waveform chart in the subpanel. I can see the actual waveform chart in the subpanel, but i cannot see the plot. Would be greatful if someone could point out what i am doing wrong here.
Many Thanks
Raza
Solved!
Go to Solution.
Attachments:
template_graph.vi ‏16 KB
graph_template.vit ‏11 KB

Hi All
I think i have solved the problem. It seems like i was running the Vi in a loop. I have taken the Run Vi outside the while lopp and this works fine. Also i need to close the reference at the end.
Raza

How can I display date+time and not the point number in excell?

Hi everyone,
Could anybody tell me how I can save date + time to a file, so that I can display on a diagram(excel) : date+time in (ox) and data (oy)? :
My program sets in (ox) the point number and not the date+time....( although date and time are written correctly in the column...)
Any help would be great,
Thanks,
regards,
Marc

hi there,
excel uses 01.01.1900 00:00 as the time offset, LabVIEW uses 01.01.1904 02:00, so you can't display the correct datetime in excel when you write the time as a fractional number of seconds from LabVIEW. you must format the datetime in LabVIEW to a string and write that to the column. use the "Format Date/Time String" - function and for example "%d.%m.%Y %H:%M:%S%3u" as the format string (see the functions help for more examples). you also could format your data to a string using "Format Into String" - function and write the file as a 2D string array. the decimal point you have to use depends on your system and its settings, but you can specify the decimal point in the Format string like "%.;%f" (means fractional number with point as decimal point).
best regards
chris
Best regards
chris
CL(A)Dly bending G-Force with LabVIEW
famous last words: "oh my god, it is full of stars!"

How can I display the data in table in separate column?

I have a vi reading data one by one in the same column.
How can I display the data with separate column?
like this:
data 1 | read | read
data 2 | read | read
data 3 | read | read
(would you mind if I will ask for an example
because it is much easier for me to work
with an example)
THANK YOU.

If you're reading your data in as a 1D array, this is as simple as using the Reshape Array to make a 2D array. I've attached an example in LabVIEW 6.1 format. The example rearranges a single column of data fill several columns horizontally, but you can easily modify this code to fill the columns downward instead.
Attachments:
Data_Column_Example.vi ‏18 KB

How can I display all content (graphics)

On Skynet (United airlines employee website), when I try to look at the "seat selection" window, it displayes only numbers, it does not display a graphic of the cabin (seats). How can I display all content?

You can see that it is a font issue by the appearance of the little boxes with the hex code of the characters that Firefox displays when there is no font that covers this Unicode range. You might see a different character in case you would have a font that maps this font.

How can I display special characters of NonEuropean languages (French, Italian, Spanish, German and Portuguese.) using import string mechanism

I would like to translate the User Interface of my application to French, Italian, Spanish, German and Portuguese.
When I put special characters in the import string file they showed up as ? (question mark)
The import strings file includes the following parameters for each string: font, text, size and style. (but no field for script)
In order to use a unicode font such as Arial I need to select a french script. But this option is not supported bu LabView (As far as I saw)
A) Is there a font which is directly German/ French etc and not regula font + script parameter?
B) Are there another required step
s for special characters support? (When I put speciual characters in the import string file the showed up as ? question mark)

This was discussed last week in this group- read the previous messages.
Look for the thread "Foreign Languages in Labview"
And recite the mantra
ActiveX is good
ActiveX is holy
All Hail Bill
Those who claim otherwise are heretics and not to be trusted
Actually, in this case the non-ActiveX suggestions may be good.
talia wrote in message
news:[email protected]..
> How can I display special characters of NonEuropean languages (French,
> Italian, Spanish, German and Portuguese.) using import string
> mechanism

Message display on top even Labview runs in background

Hello,
Currently in my program I am displaying a message to user, when one of the task finished in my program. It wait until or pause the program until user interaction. So, I am using "Display message VI" and it is working as I expected when I run my program.
I would like to display a message to user even, if user is working on some other area in the same PC i.e.. Browser or playing games or some thing else. My current program did not do this and it only pop-up the message on Labview block diagram or frontpanel.
How can I display the same message even if the user is doing some thing else on the same system.

Hey, I use LabVIEW 2011 and when I run the following vi, minimize LabVIEW and browse the internet (even in fullscreen) the dialog box pops up, as you want it to.

Can't display non-unicode font

When I try to use Symbol font and display it in JLabel, it show a square.
i have read the article written by John O'Conner
http://www.joconner.com/javai18n/articles/TextDisplay.htm.
Thanks for providing those valuable information. it does help to understand some international issue.
however, I am not sure if it apply to Symbol font such as Wingdings, webdings.
    Font fontPalatino = new Font( "Palatino LinoType", Font.PLAIN, 25); //unicode font
    Font fontMapInfo = new Font( "MapInfo Transportation", Font.PLAIN, 25); // non-unicode font
    Font fontWingdings = new Font( "Wingdings", Font.PLAIN, 25);
          // use integer number and convert into equivalent character
          // e.g. if i is 65 then c is A.
          // notes: 65 is a decimal value converted from hex 0041 value
          int i = 65;
          char c = (char)i;
          System.out.println( new Character(c).toString() );
          JLabel jlbl = new JLabel();
          jlbl.setFont(fontSymbol);
          jlbl.setText( new Character(c).toString() );1) I can't display any Wingdings font , any expert can help on this?
2) what is the difference between 0021(character code for Arial font) and 0x21(character code for Wingdings font) shown in character map?

When I try to use Symbol font and display it in
JLabel, it show a square.
i have read the article written by John O'Conner
http://www.joconner.com/javai18n/articles/TextDisplay.htm.
Much of that article is now incorrect or unnecessary for JDK 1.5. Because 1.5 knows how to find a font for the character you're trying to display, you should be able to set your label font to any logical font, and the JRE should find a substitute font if necessary that can display the character.
I'll give your code a try and will post results...is the code you've posted the code I should actually experiment with? It seems like you should want to display something different than 0x0065.
Your other questions:
0x0021 is the exclamation mark regardless of font. I see what you mean, however, since the wingdings font in charmap also says 0x0021. However, that mapping is obviously not a Unicode code point mapping.
I looked in the Misc. Symbols and Dingbats section of Uncode. A few characters might be a reasonable substitution for the pencil character you want:
0x270E (LOWER RIGHT PENCIL)
0x270F (PENCIL)
0x2710 (UPPER RIGHT PENCIL)
I didn't see any mirror images of these, ie LOWER LEFT PENCIL and UPPER LEFT PENCIL, although I admit that I didn't look closely.
Maybe one of these will work for you instead of the Wingdings 0x21 character you mentioned.
Regards,
John O'Conner

How can i use activeX Control in labview?

how can i use activeX Control in labview?
please describe me step by step.
thanks.

Well..that was quite helpful..but now I'm encountering certain problems. I've attached the VI I've made.
I don't need sound at the moment so I dropped it. (Although I tried to play it..but all I could hear was a very annoying sound.) Secondly I don't want to display any date or time..so i dropped that property too.
Now when I run this Vi...the webcam turns on, the screen of videocapx pops up..then the webcam light goes off..and another pop up appears saying..labview is not responding..and i have to close it reluctantly.
I haven't placed the stop capture property in this vi. i checked it by placing it too..but that doesn't work.
I would like to notify that my actual task is to acquire image and then compare it with another one already present on my pc. I want you to please help me out..solve my first query then I'll proceed with the latter part.
Attachments:
activexvideocaps.vi ‏20 KB

Can't display Functions Pallet

I have LabView 2010 Pro Dev. Suddenly I can't display or access the functions pallet. I can get to the controls pallet.
Solved!
Go to Solution.

How are you trying to access it? Maybe it is in an offscreen location? What happens when you right-click on the diagram?
LabVIEW Champion . Do more with less code and in less time .

Display Sound waves

Hi
I want to display sound wave files on screen like in ECG(Time series) format.
Rahul

Dear Seniors,
i tried to display my sound.wav file in wave format
(wave graph with time in xaxis and frequency in y axix)
i have tried like this. and can get the byte stream as follows.
File file = new File("e:\\munas\\sounds\\myfile1.wav");
System.out.println("File : " + file.exists());
AudioInputStream stream = AudioSystem.getAudioInputStream(file);
AudioFormat format = stream.getFormat();
stream = AudioSystem.getAudioInputStream(format, stream);
// Create line
SourceDataLine.Info info = new DataLine.Info(
SourceDataLine.class, stream.getFormat(),
((int)stream.getFrameLength()*format.getFrameSize()));
SourceDataLine line = (SourceDataLine) AudioSystem.getLine(info);
line.open(stream.getFormat());
line.start();
// Continuously read and play chunks of audio
int numRead = 0;
byte[] buf = new byte[line.getBufferSize()];
while ((numRead = stream.read(buf, 0, buf.length)) >= 0) {
int offset = 0;
while (offset < numRead) {
offset += line.write(buf, offset, numRead-offset);
System.out.println("out.length " + buf.length);
for(int ii = 0 ; ii < buf.length ; ii+=10 ) {
// here i am getting the byte value from the Audio Stream.
System.out.println("buf["+ii+"] : " + buf[ii]);
// using this value i planned to draw the desired graph(time Vs data)
am i right in getting the right stream value for my graph??
if wrong, how to get the data to be presented as i like in graph format??
valuable tips and suggesstions will be appreciated much.
ur junior,
-Munas.

Strange scenario,Oracle can not display the data in mysql correctly

I use Heterogeneous Service+ODBC to achieve "oracle access mysql"(any other method?),and now i find Oracle can not display the data in mysql correctly:
-------mysql------------
mysql> create table tst(id int,name varchar(10));
Query OK, 0 rows affected (0.00 sec)
mysql> insert into tst values(1,'a');
Query OK, 1 row affected (0.00 sec)
mysql> select * from tst;
------------+
| id | name |
------------+
| 1 | a |
------------+
1 row in set (0.00 sec)
mysql> show create table tst\G
*************************** 1. row ***************************
Table: tst
Create Table: CREATE TABLE `tst` (
`id` int(11) DEFAULT NULL,
`name` varchar(10) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
1 row in set (0.00 sec)
-------------oracle ------------------
SQL> select count(*) from "tst"@mysql;
COUNT(*)
49
SQL> select * from "tst"@mysql;
id
1
SQL> desc "tst"@mysql;
Name Null? Type
id NUMBER(10)

You can make the following query on the result page:
"select * from the_table where movietitle = ? and cinema = ?"
then you set movietitle and cinema to those which the user selected. If the resultset contains more than 0 rows, that means the movie is available.
Below is the sample code, it assumes you have a connection to the database:
PreparedStatement stat = myConnection.prepareStatement("select * from the_table where movietitle = ? and cinema = ?");
stat.setString(1, usersMovieTitleSelection);
stat.setString(2, usersCinemaSelection);
ResultSet res = stat.executeQuery();
if (res.next()) {
out.print("The movie is available");
} else {
out.print("The movie is not available");
}Now just add that to your JSP page. Enjoy ! =)

How can I display XSLT transformer errors on a web page ?

Hi,
I have some JSP pages that access DB, create an XML based on DB data and then transform it into HTML through an XSLT stylesheet. Developing the XSL code it's easy to make mistakes and generate errors on trasformation, but what I receive on the web page is only a "Could not compile stylesheet" TransformerConfigurationException, while the real cause of the error is displayed only on tomcat logs. This is the code for transformation:
static public void applyXSLT(Document docXML, InputStream isXSL, PrintWriter pw) throws TransformerException, Exception {
        // instantiate the TransformerFactory.
        TransformerFactory tFactory = TransformerFactory.newInstance();
        // creates an error listener
        XslErrorListener xel = new XslErrorListener();
        // sets the error listener for the factory
        tFactory.setErrorListener(xel);
        // generate the transformer
        Transformer transformer = tFactory.newTransformer(new SAXSource(new InputSource(isXSL)));
        // transforms the XML Source and sends the output to the HTTP response
        transformer.transform(new DOMSource(docXML), new StreamResult(pw));
}If an exception is thrown during the execution of this code, its error message is displayed on the web page.
This is the listener class:
public class XslErrorListener implements ErrorListener {
    public XslErrorListener() {
    public void warning(TransformerException ex) {
        // logs on error log
        System.err.println("\n\nWarning on XEL: " + ex.getMessage());
    public void error(TransformerException ex) throws TransformerException {
        // logs on error log
        System.err.println("\n\nError on XEL: " + ex.getMessage());
        // and throws it
        throw ex;
    public void fatalError(TransformerException ex) throws TransformerException {
        // logs on error log
        System.err.println("\n\nFatal Error on XEL: " + ex.getMessage());
        // and throws it
        throw ex;
}When I have an error in the XSL stylesheet (for examples a missing closing tag), I can find on tomcat logs the real cause of the error:
[Fatal Error] :59:10: The element type "table" must be terminated by the matching end-tag "</table>".
Error on XEL: The element type "table" must be terminated by the matching end-tag "</table>".but on my web page is reported just the TransformerConfigurationException message that is:
"Could not compile stylesheet".
How can I display the real cause of the error directly on the web page?
Thanks,
Andrea

This code is part of a bigger project that let developers edit XSL stylesheets through a file upload on the system and we can't impose the use of any tool for checking the xsl. So, I need to display the transformer error on the web page.I see. This code is part of an editorial/developmental tool for developers to create and edit XSL stylesheets.
As part of the editorial process, XSL errors during editing can be considered a normal condition. In other words, it is normal to expect that the developers will generate XSL errors as they are developing stylesheets.
In this light, handling the XSL transformation errors is a business requirement that you need to handle. Using the Java Exceptions mechanisms, e.g. try / catch are inappropriate to handle business requirements, in my opinion.
I suggest that you look at how you handle the occurence of XSL errors differently than what you currently have. You need to:
(1) capture the Transformation exception on the server;
(2) extract the message from the exception and put it into a message that can be easily understood by the user;
The current error message that you have going to the web browser is not useful.
And you should not have the Transformation exception sent to the web browser either.
What you are attempting to do with the exception is not appropriate.
Handle the Transformation exception on the Business tier and use it to create a useful message that is then sent to the Presentation tier. In other words, do not send Java exceptions to web browser.
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Can I display Hex wave in Labview?

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