Plots start at zero in plot legend
I have a graph that plots measurements from 14 different sensors. However, the graph legend starts numbering the plots at zero. I would like this to start at 1 rather than zero, but cannot find an option for this. This should be simple, so perhaps I am not looking in the right place. I am fairly new to labview, so perhaps I am missing something simple. Any help would be appreciated. Thanks!
I must be a little slow today. This was a silly question. I just figured it out. Apparently all you have to do is click on the legend with your text cursor and type in whatever you want. I was trying to make this much more difficult than it is.
Similar Messages
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Problem with Plot Starting at Zero Seconds.vi
In document with ID: 4KTFBLE9 an example vi is offered. Its name is "Plot Starting at Zero Seconds.vi". I have problems in "borrowing" the function labeled "Waveform Chart", comprising a box with the text "XScale Multiplier". When I transfer this function to another vi, the function is transmutated to another function. What happens, and what am I doing wrong?
This is a property node and it will only link directly to items in the same VI. If you move it to a different VI, it will turn into a plain property node.
If you have another waveform chanrt in the other VI, you can right-click the copied proeprty node and select "link to..." and select the local waveform chart.
If you want it to act on the "other" wavform chart, you need to make the second VI a subVI and wire the reference to it via a connector.
If you want to create a new such property node, simply right-click the waveform chart and select the desired property.
Message Edited by altenbach on 11-18-2008 08:51 AM
LabVIEW Champion . Do more with less code and in less time . -
How to generate 3dSurface plot starting from x,y,z txt file
Hallo guys,
I need to generate a 3Dsurface plot starting from unordered coordinates data available in the following
text file:
xs, ys, zs
-20,-70,1500
-30,-55,1500
-30,-79,1500
-40,-70,1500
-10,-70,2000
-30,-42,2000
-30,-90,2000
-53,-70,2000
-5,-70,2500
-30,-30,2500
-70,-70,2500
-30,-100,2500
I tried with 3DMesh using the following VB6 code (without valuable results):
[code]
rsurf.Open "Select * From surf.txt", _
connCSV, adOpenStatic, adLockReadOnly, adCmdText
l = rsurf.RecordCount
surflbl.Caption = "records" & l
ReDim xs(l), ys(l), zs(l)
For i = 1 To l
xs(i) = rsurf.Fields(0) 'EW (m)
ys(i) = rsurf.Fields(1) 'NS (m)
zs(i) = rsurf.Fields(2) 'DEPTH (m)
rsurf.MoveNext
Next i
rsurf.Close
connCSV.Close
CWGraph3D1.Plot3DMesh xs, ys, zs
[/code]
When i try to convert 3dmesh into 3dsurface, in order to have a smooth surface, i really don't know how to build the zs(i,j) matrix
I don't know, further, why data displayed on the plot always start from 0,0,0 coordinates
Any help and example would be very appreciated
Beta66If your still interested I had some luck doing this....
Dim xs, ys, zs As Variant
Dim j
Dim ArrX(0 To 11) As Double
Dim ArrY(0 To 11) As Double
Dim ArrZ(0 To 11) As Double
xs = Array(-20, , -30, -30, -40, -10, -30, -30, -53, -5, -30, -70, -30)
ys = Array(-70, -55, -79, -70, -70, -42, -90, -70, -70, -30, -70, -100)
zs = Array(1500, 1500, 1500, 1500, 2000, 2000, 2000, 2000, 2500, 2500, 2500, 2500)
For j = 0 To 11
ArrX(j) = CDbl(xs(j)) 'I don't know why but this type cast was required
ArrY(j) = CDbl(ys(j))
ArrZ(j) = CDbl(zs(j))
Next j
CWGraph3D1.Plot3DMesh ArrX, ArrY, ArrZ
good luck with your project
Curt -
I am using a table in Numbers to plot daily graph lines. Mood swings of how I am on the day, i"m a depressive.
If I fill a cell with a step box at say zero it plots the graph. I can't actually set the cell value until the actual day but the graph plots it at zero when I don't want it to plot anything. Is there a work around. so thatbgraph only plots on the day?The answer is (sort of) in your subject, but edited out of the problem statement in the body of your message.
When you use a stepper or a slider, the value in the cell is always numeric, and is always placed on the chart if that cell is included in the range graphed by the chart.
But if you use a pop-up menu cell, you can specify numeric or text values in the list of choices for in the menu. Numeric values will be shown on the chart. Text values will not.
For the example, the values list for the pop-up menu was:
5
3
1
Choose
-1
-3
-5
The first pop-up was set to display Choose, then the cell was filled down the rest of the column. Any text value (including a single space, if you want the cell to appear blank) may be used instead of Choose.
For charts with negative Y values, the X axis will not automatically appear at Y=0. If your value set will include negative values, I would suggest setting the Y axis maximum and minimum to the maximum and minimum values on your menu list, rather than letting Numbers decide what range to include on the chart. Place a line shape across the chart at the zero level, and choose to NOT show the X axis.
Regards,
Barry -
i am using for first time the time machine and an external hard drive because I want to erase my macbook and start from zero files. Am i keeping my files in the portable hard disk when I will connect it again with the macbook or the time machine will erase all?
I would like to know if after I erase all my data, empy hard drive inside the macbook, the time machine will erase all my files that I have saved in my "WD "My passport" external hard driveWelcome to Apple Support Communities
Time Machine has to erase the external disk in order to make backups. Before setting Time Machine up, copy the files of your external disk to the hard disk of the Mac in order not to lose them, and then, set up Time Machine. The first backup will start automatically.
If you want more information about Time Machine, read the Pondini's site > http://pondini.org -
How to get timestamp to start at zero hours?
Hi.
I'm building a software that logs values to excel.
The user can enter how long the test should run for, and the time elapsed should be set as a string in [hh:mm:ss]
The only problem is that the TimeStamp starts at 01:00:00 (beacuase of the 1904-issue i guess). How can I get the counter to start at 00:00:00, or maybe subtract the one hour in the begining so it starts at zero.
If you run the VI you'll understand what I mean.
Thanks!
Is my avatar the dog from the fraggle rock?
Solved!
Go to Solution.
Attachments:
forum_program1.vi 26 KBHi auto,
you have to use relative time instead of absolute time - see attachment...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
Attachments:
forum_program1.vi 27 KB -
RSA decryption Error: Data must start with zero
Because of some reasons, I tried to use RSA as a block cipher to encrypt/decrypt a large file. When I debug my program, there some errors are shown as below:
javax.crypto.BadPaddingException: Data must start with zero
at sun.security.rsa.RSAPadding.unpadV15(Unknown Source)
at sun.security.rsa.RSAPadding.unpad(Unknown Source)
at com.sun.crypto.provider.RSACipher.doFinal(RSACipher.java:356)
at com.sun.crypto.provider.RSACipher.engineDoFinal(RSACipher.java:394)
at javax.crypto.Cipher.doFinal(Cipher.java:2299)
at RSA.RRSSA.main(RRSSA.java:114)
From breakpoint, I think the problem is the decrypt operation, and Cipher.doFinal() can not be operated correctly.
I searched this problem from google, many people met the same problem with me, but most of them didn't got an answer.
The source code is :
Key generation:
package RSA;
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.logging.Level;
import java.util.logging.Logger;
public class GenKey {
* @param args
* @author tang
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
KeyPairGenerator KPG = KeyPairGenerator.getInstance("RSA");
KPG.initialize(1024);
KeyPair KP=KPG.genKeyPair();
PublicKey pbKey=KP.getPublic();
PrivateKey prKey=KP.getPrivate();
//byte[] publickey = decryptBASE64(pbKey);
//save public key
FileOutputStream out=new FileOutputStream("RSAPublic.dat");
ObjectOutputStream fileOut=new ObjectOutputStream(out);
fileOut.writeObject(pbKey);
//save private key
FileOutputStream outPrivate=new FileOutputStream("RSAPrivate.dat");
ObjectOutputStream privateOut=new ObjectOutputStream(outPrivate);
privateOut.writeObject(prKey)
}Encrypte / Decrypt
package RSA;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.security.Key;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.Cipher;
//import sun.misc.BASE64Decoder;
//import sun.misc.BASE64Encoder;
public class RRSSA {
* @param args
public static void main(String[] argv) {
// TODO Auto-generated method stub
//File used to encrypt/decrypt
String dataFileName = argv[0];
//encrypt/decrypt: operation mode
String opMode = argv[1];
String keyFileName = null;
//Key file
if (opMode.equalsIgnoreCase("encrypt")) {
keyFileName = "RSAPublic.dat";
} else {
keyFileName = "RSAPrivate.dat";
try {
FileInputStream keyFIS = new FileInputStream(keyFileName);
ObjectInputStream OIS = new ObjectInputStream(keyFIS);
Key key = (Key) OIS.readObject();
Cipher cp = Cipher.getInstance("RSA/ECB/PKCS1Padding");//
if (opMode.equalsIgnoreCase("encrypt")) {
cp.init(Cipher.ENCRYPT_MODE, key);
} else if (opMode.equalsIgnoreCase("decrypt")) {
cp.init(Cipher.DECRYPT_MODE, key);
} else {
return;
FileInputStream dataFIS = new FileInputStream(dataFileName);
int size = dataFIS.available();
byte[] encryptByte = new byte[size];
dataFIS.read(encryptByte);
if (opMode.equalsIgnoreCase("encrypt")) {
FileOutputStream FOS = new FileOutputStream("cipher.txt");
//RSA Block size
//int blockSize = cp.getBlockSize();
int blockSize = 64 ;
int outputBlockSize = cp.getOutputSize(encryptByte.length);
/*if (blockSize == 0)
System.out.println("BLOCK SIZE ERROR!");
}else
int leavedSize = encryptByte.length % blockSize;
int blocksNum = leavedSize == 0 ? encryptByte.length / blockSize
: encryptByte.length / blockSize + 1;
byte[] cipherData = new byte[outputBlockSize*blocksNum];
//encrypt each block
for (int i = 0; i < blocksNum; i++) {
if ((encryptByte.length - i * blockSize) > blockSize) {
cp.doFinal(encryptByte, i * blockSize, blockSize, cipherData, i * outputBlockSize);
} else {
cp.doFinal(encryptByte, i * blockSize, encryptByte.length - i * blockSize, cipherData, i * outputBlockSize);
//byte[] cipherData = cp.doFinal(encryptByte);
//BASE64Encoder encoder = new BASE64Encoder();
//String encryptedData = encoder.encode(cipherData);
//cipherData = encryptedData.getBytes();
FOS.write(cipherData);
FOS.close();
} else {
FileOutputStream FOS = new FileOutputStream("plaintext.txt");
//int blockSize = cp.getBlockSize();
int blockSize = 64;
//int j = 0;
//BASE64Decoder decoder = new BASE64Decoder();
//String encryptedData = convert(encryptByte);
//encryptByte = decoder.decodeBuffer(encryptedData);
int outputBlockSize = cp.getOutputSize(encryptByte.length);
int leavedSize = encryptByte.length % blockSize;
int blocksNum = leavedSize == 0 ? encryptByte.length / blockSize
: encryptByte.length / blockSize + 1;
byte[] plaintextData = new byte[outputBlockSize*blocksNum];
for (int j = 0; j < blocksNum; j++) {
if ((encryptByte.length - j * blockSize) > blockSize) {
cp.doFinal(encryptByte, j * blockSize, blockSize, plaintextData, j * outputBlockSize);
} else {
cp.doFinal(encryptByte, j * blockSize, encryptByte.length - j * blockSize, plaintextData, j * outputBlockSize);
FOS.write(plaintextData);
//FOS.write(cp.doFinal(encryptByte));
FOS.close();
}Edited by: sabre150 on Aug 3, 2012 6:43 AM
Moderator action : added [ code] tags so as to make the code readable. Please do this yourself in the future.
Edited by: 949003 on 2012-8-3 上午5:311) Why are you not closing the streams when writing the keys to the file?
2) Each block of RSA encrypted data has size equal to the key modulus (in bytes). This means that for a key size of 1024 bits you need to read 128 bytes and not 64 bytes at a time when decrypting ( this is probably the cause of your 'Data must start with zero exception'). Since the input block size depends on the key modulus you cannot hard code this. Note - PKCS1 padding has at least 11 bytes of padding so on encrypting one can process a maximum of the key modulus in bytes less 11. Currently you have hard coded the encryption block at 64 bytes which is OK for your 1024 bits keys but will fail for keys of modulus less than about 936 bits.
3) int size = dataFIS.available(); is not a reliable way to get the size of an input stream. If you check the Javadoc for InputStream.available() you will see that it returns the number of bytes that can be read without blocking and not the stream size.
4) InputStream.read(byte[]) does not guarantee to read all the bytes and returns the number of bytes actually read. This means that your code to read the content of the file into an array may fail. Again check the Javadoc. To be safe you should used DataInputStream.readFully() to read a block of bytes.
5) Reading the whole of the cleartext or ciphertext file into memory does not scale and with very large files you will run out of memory. There is no need to do this since you can use a "read a block, write the transformed block" approach.
RSA is a very very very slow algorithm and it is not normal to encrypt the whole of a file using it. The standard approach is to perform the encryption of the file content using a symmetric algorithm such as AES using a random session key and use RSA to encrypt the session key. One then writes to the ciphertext file the RSA encrypted session key followed by the symmetric encrypted data. To make it more secure one should actually follow the extended procedure outlined in section 13.6 of Practical Cryptography by Ferguson and Schneier. -
Hi experts
I have a target field whose values should generate starting from zero
I am using gen_row_num but it starts from 1
Any Suggestions Please
Thanks
MadhuHello
So, you need the value to be one less than the one that is generated? Simple maths suggests subtracting 1 from the generated value will give you what you require.
gen_row_num() - 1
Michael -
Choose Plot Columns as Series or Plot Rows as Series from the pop-up menu in the bottom ba
I am trying to construct a 2D graph in Numbers 3.5 (2109) that shows at two time points the voting intentions by political party. The instruction given by Help is below, but I cannot find the bottom bar or the pop-up box.
Switch rows and columns as data series
When you add a chart, Numbers defines default data series for it. In most cases, if a table is square or if it’s wider than it is tall, the table rows are the default series. Otherwise, the columns are the default series. You can change whether rows or columns are the data series.
Select the chart.
Choose Plot Columns as Series or Plot Rows as Series from the pop-up menu in the bottom bar.
Bar showing options to plot rows or columns as series
Click Done.Hi Phil,
Click once on the chart (graph) to select it. Then click on Edit Data References. The pop-up appears bottom left of the Numbers window.
Regards,
Ian. -
Can Check Number be start with zero?
Dear all,
I knew that check number on SBO is numeric but check number of my country some number can start with zero and it effected to check number printing form. So, I'm not sure whether we can set check number to be charactor or not. Or how to apply for this issue, pls. suggest.
Thanks you very much.
AngnamHi,
It is not possible to set check number as alphanumeric, you can use remarks field to enter check number or any other filed that you think is not required and can be used as check number.
it is not possible to add UDF in checks for payment . if you are using payment method checks tab, you can use UDF.
Thanks,
Neetu -
I am using sound and vibration assistant 7.0 . I am using the impact test example given . I want to know if it is possible to convert the magnitude phase plot to real and imaginary plot in the sound and vibration assistant 7.0 ???
If you have LabVIEW, you can create a user step to perform the conversion in version 7.0. Sound and Vibration 2009 has a checkbox in the Frequency Response configuration page to export the real and imaginary components. Short of upgrading SVT, you can also install the evaluation version of NI LabVIEW SignalExpress 2009, and this will also upgrade the Frequency Response Step which is shared between the two products (but then you don't get all the other features that were also added in SV 2009).
Here are some links that may be useful to help decide whether you want to upgrade:
http://www.ni.com/soundandvibration/
http://www.ni.com/labview/signalexpress/
Doug
NI Sound and Vibration -
Is it possible to reset auto ID and start from zero?
Hi All ,
Could you please help me on this.I want to import records and want the Auto ID to start from zero.Is there any settings available for this?
Thanks
ArnabHi,
There is no such setting to reset Auto ID count. But the work around that you can use is ;
Delete Auto ID field and recreate the AutoID field in the repository. This will make Auto ID count reset to Zero.
I am not sure if you can reset it directly using Database tables. I will update you if i find some thing on this.
Best Regards,
Shiv -
The problem is that im getting an error saying time out!!! and when i start downloading again it starts from zero!!
Their alternative option is for you to bring it into the store
You could google and look for some download helpers (presuming they still exist, haven't used them in years) but they're freeware or adware that caches your download to help you recover from timeouts.
the timeout is possibly caused by your ISP, if they regularly cycle routers or the such it 'burps' your connection causeing it to cut out.
You might try taking your laptop to your local library which may have wifi. Or, as the others have suggested, a friend's house with cable internet. -
Javax.crypto.BadPaddingException: Data must start with zero
Actually, I didn't write the entire codes, most of it was written by someone here, and I only tried to add a method. Here:
public class RSAEncrypt {
private KeyPair keys;
private Cipher rsaCipher;
public RSAEncrypt() throws GeneralSecurityException {
KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
keygen.initialize(512);
keys = keygen.generateKeyPair();
rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
public byte[] encrypt(byte[] message) throws GeneralSecurityException {
rsaCipher.init(Cipher.ENCRYPT_MODE, keys.getPublic());
return rsaCipher.doFinal(message);
public byte[] decrypt(byte[] encryptedMessage) throws GeneralSecurityException {
rsaCipher.init(Cipher.DECRYPT_MODE, keys.getPrivate());
return rsaCipher.doFinal(encryptedMessage);
* @param args
public static void main(String[] args) throws Exception {
String message = "The quick brown fox ran away";
System.out.println("Message: " + message);
byte[] encrypted = new RSAEncrypt().encrypt(message.getBytes());
System.out.println("Cipher Text: " + HexBin.encode(encrypted));
byte[] decrypted = new RSAEncrypt().decrypt(encrypted);
System.out.println("Decrypted Text: " + decrypted);
}The idea is that the program should encrypt the String, "The quick brown fox ran away," which it does. But when it gets to this line:
byte[] decrypted = new RSAEncrypt().decrypt(encrypted);i get the error: javax.crypto.BadPaddingException: Data must start with zero.
But here's the funny thing: If I edit the codes so that the encryption and decryption are done in the constructor, it works! Here:
public class RSAEncrypt {
private KeyPair keys;
private Cipher rsaCipher;
public RSAEncrypt() throws GeneralSecurityException {
KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
keygen.initialize(512);
keys = keygen.generateKeyPair();
rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsaCipher.init(Cipher.ENCRYPT_MODE, keys.getPublic());
String message = "The quick brown fox ran away";
byte[] cipherText = rsaCipher.doFinal(message.getBytes());
System.out.println(new BASE64Encoder().encode(cipherText));
rsaCipher.init(Cipher.DECRYPT_MODE, keys.getPrivate());
byte[] decryptedText = rsaCipher.doFinal(cipherText);
String dText = new String(decryptedText);
System.out.println(dText);
* @param args
public static void main(String[] args) throws Exception {
new RSAEncrypt();
}So, I'm confused. The Data must start with zero error is coming up when I pass encrypted data to a method for decryption, but it doesn't come out when I run everything in one method or in the constructor. Why???
Also, when performing RSA encryption (or decryption) on a plaintext stored in a file (not a big file, just a file with probably one or two lines), this is what I do (and it works):
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
CipherInputStream cis = new CipherInputStream(new FileInputStream(new File("message.txt")),cipher);My question is, I do see some people doing this as well:
cipher.doFinal(byteArray);The fact that I don't have this in my code when encrypting data from a file, that's ok, right? I don't need to do a ".doFinal()" method, do I?
Edited by: glenak on Aug 19, 2010 4:26 AMglenak wrote:
I don't quite understand, but if you mean this:
String message = "The quick brown fox ran away";
System.out.println("Message: " + message);
RSAEncrypt rsaEncrypt = new RSAEncrypt();
Creates and instance of RSAEncrypt with a new random RSA key pair.
byte[] encrypted = rsaEncrypt.encrypt(message.getBytes());Encrypts with the random public key created in the first instance.
System.out.println("Cipher Text: " + HexBin.encode(encrypted));
RSAEncrypt rsaDecrypt = new RSAEncrypt();Creates and second instance of RSAEncrypt with a new random RSA key pair nothing to do with the first instance.
byte[] decrypted = rsaDecrypt.decrypt(encrypted);Attempts to decrypt the ciphertext created with the public key of the first instance using the private key of the second, and totally unrelated, instance.
System.out.println("Decrypted Text: " + decrypted);I still get the "Data must start with zero" error.
If you could show me an example of what you mean, it would help very muchNo example is required. You cannot encrypt with the public key of one key pair and expect to decrypt with the private key of a totally independent key pair. -
Excel time is current, how do I have it start from zero
I am sending time and temp data to excel. I want the time to show elapsed time instead of current time in decimal form. Right now the time displayed is the current seconds that the actual time is when I start the program. How can I get the time to start with zero everytime?
I want it to look like this:
0.000 21.233
0.250 21.256
0.500 22.001
1.000 21.563
Thanks for your help!
KennyWill you take a look at this set-up? I am getting the data I want, but the columns and rows are messed up.
0
0.25
0.5
0.75
23.29717
0
0
0
22.92344
0
0
0
23.29717
0
0
0
21.86387
0
0
0
This is what I'm getting can I make it give it to me like:
0 23.29717
0.25 22.92344
0.50 23.29717
Attachments:
elapsedtc1.vi 132 KB
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