How to refnum to a numeric constant array in a subvi?

I want to use refnum to point to a numeric constant array.
Which type of control should I select, numeric, array or other?

Thanks,srikrishnaNF,
Please give me some advice how to use array of constant refnums in the block diagram? thanks.

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How can I write a array to other subvi when the program running?

Hello
I am working on a project with labVIEW, In the programme I made, there is an Case structure. And there are several subvI, each subvi
belongs to one case.My question is when I process the data I a certain subvI, how can I wrtie this file(an array) to another subvi and
show the file name in a listbox?
Many thanks

You could try using a global variable or a shared variable.
Brian

How do I create an n-dimensional constant array?

I have a code where I am trying to mathematically manipulate arrays in a while loop. I was planning on multiplying an array by a constant, but on the second iteration the constant actually ends up changing to an array of different constants*. Therefore, I'd like to define an array of constants of one value. I did this using the "array constant". I stuck a double point constant inside and wired it to me terminal. One problem I'm having is that the size of the array isn't matching my other array. In the box to the left of my double point constant value, I put in "10" because the size of the array I want is 10. Instead of generating a 10 element array with all the same constant, it generated...uhhh...nothing. I received null: []. What am I doing wrong?
Next, is there a way to define the length of this array based on the length of another array? For example, the array I want to work with is 10 elements, but it might not ALWAYS be 10 elements. I'd like to put in some flexibility so that if it changes to 30 elements, the constant array I create will be smart enough to know it also needs to be a 30 element array.
Also, I apologize for not including a picture. The computer with LabVIEW is not the same as the computer connected to the internet. Furthering my frustration, the only way I can transfer data from that computer to this one results in encrypted data unless I burn a CD. Ohhhh working for the federal government is a delight sometimes.
*The constant changes to an array of constants because the process is iterative. I start with a guess for the constant, but then that guess gets updated by the values in the array, forcing it to become an array itself.
Solved!
Go to Solution.

The problem is that when I do a shift register in my while loop, the constant is changed to an array. So to make the loop work, I want to initialize the loop with an array of constants.
This is a simplified version of what I'm trying to do in pseudocode:
C_old = [0.99, 0.99, 0.99] // I shortened this to a 3 element array for simplicity
C_new = [0.99, 0.99, 0.99]
Re_old = [1E5, 1.2E5, 1.5E5]
while (abs(C_old-C_new) < 0.001)
     Re_new = Re_old*(C_new/C_old)
     C_newer = a bunch of stuff as a function of Re_new
     C_old = C_new
     C_new = C_newer
     Re_old = Re_new
So in my while loop, I have C_old, C_new, and Re_old on the boundary as shift registers. I don't really need the constants to be arrays, but the problem is that when I do C_newer as a function of Re_new (which is an array), I get an array of constants. So to make the shift registers work, they need to be the same datatype, so I need to initialize an array of constants at the beginning as C_old and C_new and also to test the values to stop the while loop.

How to create a matrix with constant values and multiply it with the output of adc

How to create a matrix with constant values and multiply it with the output of adc

nitinkajay wrote:
How to create a matrix with constant values and multiply it with the output of adc
Place array constant on diagram, drag a double to it, r-click "add dimension". There, a constant 2D double array, a matrix.
/Y
LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV

Odi 11g - malformed numeric constant thru view data

Hi All,
From ODI 11g in the Designer Tab - Models
In the models where I have the Reverse Engineered tables.
From the reverse engineered tables I select one of the table as SRC_CUSTOMER to see its data I right click and select view data
I get the message popped up as malformed numeric constant
When I click on the stack Trace I get
com.borland.dx.dataset.DataSetException: malformed numeric constant (this is the selected error)
The entire stack trace has the following details.
See com.borland.dx.dataset.DataSetException error code: BASE+66
com.borland.dx.dataset.DataSetException: malformed numeric constant
    at com.borland.dx.dataset.DataSetException.a(Unknown Source)
    at com.borland.dx.dataset.DataSetException.throwException(Unknown Source)
    at com.borland.dx.dataset.DataSetException.SQLException(Unknown Source)
    at com.borland.dx.sql.dataset.Database.createPreparedStatement(Unknown Source)
    at com.borland.dx.sql.dataset.o.a(Unknown Source)
    at com.borland.dx.sql.dataset.o.d(Unknown Source)
    at com.borland.dx.sql.dataset.o.f(Unknown Source)
    at com.borland.dx.sql.dataset.QueryProvider.e(Unknown Source)
    at com.borland.dx.sql.dataset.JdbcProvider.provideData(Unknown Source)
    at com.borland.dx.dataset.StorageDataSet.refresh(Unknown Source)
    at com.borland.dx.sql.dataset.QueryDataSet.refresh(Unknown Source)
    at com.sunopsis.graphical.frame.edit.AbstractEditFrameGridBorland.initialize(AbstractEditFrameGridBorland.java:628)
    at com.sunopsis.graphical.frame.edit.AbstractEditFrameGridBorland.<init>(AbstractEditFrameGridBorland.java:868)
    at com.sunopsis.graphical.frame.edit.EditFrameTableData.<init>(EditFrameTableData.java:50)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at oracle.odi.ui.editor.AbstractOdiEditor$1.run(AbstractOdiEditor.java:176)
    at oracle.ide.dialogs.ProgressBar.run(ProgressBar.java:655)
    at java.lang.Thread.run(Thread.java:662)
Chained exception:
java.sql.SQLException: malformed numeric constant
    at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source)
    at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor67.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at oracle.odi.core.datasource.dwgobject.support.OnConnectOnDisconnectDataSourceAdapter$OnDisconnectCommandExecutionHandler.invoke(OnConnectOnDisconnectDataSourceAdapter.java:200)
    at $Proxy2.prepareStatement(Unknown Source)
    at com.borland.dx.sql.dataset.Database.createPreparedStatement(Unknown Source)
    at com.borland.dx.sql.dataset.o.a(Unknown Source)
    at com.borland.dx.sql.dataset.o.d(Unknown Source)
    at com.borland.dx.sql.dataset.o.f(Unknown Source)
    at com.borland.dx.sql.dataset.QueryProvider.e(Unknown Source)
    at com.borland.dx.sql.dataset.JdbcProvider.provideData(Unknown Source)
    at com.borland.dx.dataset.StorageDataSet.refresh(Unknown Source)
    at com.borland.dx.sql.dataset.QueryDataSet.refresh(Unknown Source)
    at com.sunopsis.graphical.frame.edit.AbstractEditFrameGridBorland.initialize(AbstractEditFrameGridBorland.java:628)
    at com.sunopsis.graphical.frame.edit.AbstractEditFrameGridBorland.<init>(AbstractEditFrameGridBorland.java:868)
    at com.sunopsis.graphical.frame.edit.EditFrameTableData.<init>(EditFrameTableData.java:50)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at oracle.odi.ui.editor.AbstractOdiEditor$1.run(AbstractOdiEditor.java:176)
    at oracle.ide.dialogs.ProgressBar.run(ProgressBar.java:655)
    at java.lang.Thread.run(Thread.java:662)
What can be the root cause of this error. Has anything to do with the datatype of the selected tables.
Because from the model this error occurs for all of the reverse engineered tables.
Thanks
Ahmed

Hi, give a read at this.
https://forums.oracle.com/thread/666595
Which technology are you using? Basically error means that you are trying to read number where you have fluff (alphanumeric, null etc)
Have you checked your table? How have you defined your table?

Keybord trick to insert quickly a value into a constant array

Hi everybody,
I want just to know if there is a keybaord trick which allows yuo to pass quickly from an element to the next one (or to new one) while I'm typing the values into a constant array, you know if is there?
What I mean is a keybord key as the TAB key that quickly allow you to pass from a cell to the next one into the grid control.
Thank you in advance,
Regards.
Ricky
Italian Developer engineer
www.www.selt-sistemi.com
Solved!
Go to Solution.

Darin.K wrote:
[...] unzip the files and put them in the directory
[LabVIEW ####]\resource\dialog\QuickDrop\plugins
Create some cells in Excel (or other similar program), select and copy to the clipboard. (Any tab delimited data will work). On the FP Ctrl-Space Ctrl-e creates a control with the data in numeric form (simple check to decide DBL or I32). Ctrl-Space Ctrl-E (shift+e) creates a string control. Similar commands for the BD to create array constants (numbers or string). Single rows or columns become 1D arrays, otherwise you get 2D array controls/constants. Change the letter by renaming e.vi if you'd like. I chose e for Excel since X was taken along with s for spreadsheet and a for array.
Jim
You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice

How to declare and initialize a STRING ARRAY (assign strings to array elements)

How to declare and initialize a STRING ARRAY (assign desired strings to elements of an array, for example "abc", "def", "ghi", "jkl", etc.) in LabVIEW? I saw a "string array" block in help, but could not find it in the function palette. Does a spreadsheet string have to be in a file (or can it be in a string constant block)? Thank you.

Hi,
you can do it in several ways:
1. Direct way: Create string array control on front panel and type strings in its elements
2. Programmatically 1: Create string array indicator (or local variable of control), right click on it in block diagram, select "Create constant" from drop down menu. The array constant will appear. Now type values in this constant's strings
3. Programmatically 1: Use "Build array", "Replace array subset", "Insert into array" or "Initialize array" functions from "Functions->Array" palette.
And of course you can combine all of these methods.
Good luck.
Oleg Chutko.

Using the value "Image/*" for the accept attribute of the HTML input Element, how can I add .pdf to the array of preconfigured file types (.jpe, .jpg, .jpeg, .?

On a form, using the value "image/*" for the accept attribute of the HTML input Element, how can I add .pdf to the array of pre-configured file types (.jpe, .jpg, .jpeg, .gif, .png, .bmp, .ico, .svg, .svgz, .tif, .tiff, .ai, .drw, .pct, .psp, .xcf, .psd, .raw)?
Say I wanted to add .gif, .jfif or .ico. I find this array limited, how can I add types to image?
<input type="file" name="file" accept="image/*" id="file" />
mimeTypes.rdf does not seem to allow this.

''mimeTypes.rdf'' has nothing to do with web development. It's a file that stores your file handling preferences (e.g. if you want ZIP files automatically saved or opened).
You can't change the file types of the pre-defined content specifiers (audio/*, video/*, image/*), but you can specify additional MIME types. To add PDF to your above example,
<pre><nowiki><input type="file" name="file" accept="image/*,application/pdf" id="file" /></nowiki></pre>
For details, see
* [https://developer.mozilla.org/En/HTML/Element/Input developer.mozilla.org/En/HTML/Element/Input]

How do u convert a numeric value to char

hi,
how do u convert a numeric value NUMBER(22) to a character value.... like a to_char() function?
i've tried the CAST function it won't work.

Hi,
Use of CAST function will convert NUMBER to CHAR but it takes a lot of time if there are large number of recrods.
Syntax:
CAST(col_name AS char)
I have tried this, it worked fine for less records.
Are you getting any error while using cast function or while querying..
As far as I know it won't give error in these cases (if correct syntax used) but it will take very much time (depending on the number of records) while querying.
-Vency

How do I convert a 1-D array of cluster of 5 elements into a 2-D array of numbers? (history data from a chart)

Hello,
in my vi I have a chart with 5 Plots displaying measurement data.
The user should be able to save all the history data from the chart at anytime. (e.g. the user watches the chart and some event happens, then he presses a "save"-button)
I know, that I can read out the history data with a property node. That is not the problem. The problem is, how do I handle the data? The type of the history data is a 1-D array of cluster of 5 elements.
I have to convert that data somehow into a 2 D-array of numbers or strings, so that I can easily save it in a text-file.
How do I convert a 1-D array of cluster of 5 elements into a 2-D array of numbers?
I use LabVIEW 7.1
Johannes
Greetings Johannes
Using LabVIEW 7.1 and 2009 recently
Solved!
Go to Solution.

Gerd,
thank you for the quick response and the easy solution.
Look what I did in the meantime. I solved the problem too, but muuuch more complicate :-)
And I have converted the numbers to strings, so that I can easily write them into a spreasheet file.
Johannes
Message Edited by johanneshoer on 04-28-2009 10:39 AM
Greetings Johannes
Using LabVIEW 7.1 and 2009 recently
Attachments:
SaveChartHistory.JPG ‏57 KB
SaveChartHistory.JPG ‏57 KB

Insert into and Invalid numeric constant

Hi all,
i try create table t1
f1 fixed(10)
and insert -2 into into t1:
insert into t1(f1) values (-2) works fine
insert into t1(f1) values (-(2)) does not work (Error Executing 'insert into t1(f1) values (-(2))' [-3016] (at 28): Invalid numeric constant)
insert into t1(f1) values (-(2+0)) works fine
It's feature or bug?
Best regards,
Lukasz.
MAXDB 7.6.03.07 & Windows Server 2003

Hi Lukasz,
this is pretty sure a bug.
SELECT -(f1) FROM T1
works correct.
KR Lars

How to extract every component in an array?

Hello everyone!
Do you know how to extract every component from an array field?
For example:
The following is the defination of a table:
CREATE TABLE test (
id NUMBER PRIMARY KEY,
name VARCHAR2(32),
shape MDSYS.SDO_GEOMETRY
And then I insert a new record:
INSERT INTO test VALUES(
1,'first',
MDSYS.SDO_GEOMETRY(
2003,
NULL,
NULL,
MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,3),
MDSYS.SDO_ORDINATE_ARRAY(1,1, 5,7)
The Question is I want to read the every component (for example 1,1,5,7) in the sdo_ordinate_array one by one. Who knows how to write the SQL?
I have tried "select a.shape.sdo_ordinates(1) from test a". But it can't work.
Thank you very much!

One solution is to read each ordinate from a cursor ina SQL block. Here is an example:
set serveroutput on
SET serveroutput on SIZE 1000000
set concat on
DEFINE layername = 'LAYER';
DEFINE geomcolname = 'GEOM';
DECLARE
id varchar2(10);
longitude number;
latitude number;
logmile number;
i number;
theLayer varchar2(32);
theGeomCol varchar2(32);
BEGIN
FOR rec IN (SELECT ROWID, id, &geomcolname FROM &layername ) LOOP
id := rec.id;
i := 1;
while i < rec.geom.sdo_ordinates.count loop
longitude:=rec.geom.sdo_ordinates(i);
latitude:=rec.geom.sdo_ordinates(i+1);
logmile:=rec.geom.sdo_ordinates(i+2);
dbms_output.put_line(id || ',' || longitude || ',' || latitude || ',' || logmile);
i := i + 3;
end loop;
END LOOP;
commit;
END;
Maybe that will help.
Dave
David R. Miller
Michael Baker Jr., Inc.
3601 Eisenhower Avenue
Alexandria, VA 22314
[email protected]
www.mbakercorp.com

How to store logical operator in an array in java

how to store logical operator in an array in java.
Array should not be String type if i pass an element of that array it should be considered as logical operator

my exact requirment is like this, i need some logic
to convert string like this "2 Equals 3 AND 4 greater
than 7" to condition like this
2 == 3 && 4 >7 which i can pass to if
condition.So you want to create an expression parser?
No need for something as ugly as what you think you need, a simple nested conditional will do it for just the few logical operations.

How can I create a variable size array?

How can I create a variable size array?

ok then how can i create a new vector object?If you don't know that, you need to go back to your text book and study some more. Or read the tutorial on the basics of Java: http://java.sun.com/docs/books/tutorial/java/index.html
After reading that you can move on to: http://java.sun.com/docs/books/tutorial/collections/index.html
Anyway, the answer to your question is, of course:
Vector v = new Vector();(But you should probably use ArrayList instead of Vector.)

How to delete an element in an array...(simple way)

hi,
Newbie here... please help how to delete an element in an array list?
there are alot of codes but they're complicated for a newbie like me..
(simple codes would be better ..:) thank you...

makk_88 wrote:
since u want the simple method.....
just overrite the position of the element that need to be deleted with the next element in the array..
by doing this, element need to be deleted will not be accessibe..
i think u got..what i'm saying.
thnx..Mak,
Say we wish to delete the second element of an array a[1]. Do you really believe that a[1] = a[2] somehow magically deletes a[1]? I really don't think so Tim.
Two eggs, minus 1, equals two eggs? Interesting theory, but I think you're probably wrong.
*@OP:* My advise is just use an ArrayList.
Cheers. Keith.

How to refnum to a numeric constant array in a subvi?

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