Where to define new custom data types?

Similar Questions

• DLL custom data type

  I try to use a DLL in LabView that talks about an acquisition card. One of the functions requires a custom data type (MID2250_MDConfig_t) that LabView does not support by default. It is defined in the C header file as follows:

  typedef struct
  {
  int CoordsX;
  int CoordsY;
  } MID2250_PointCorrds_t;

  typedef struct
  {
  MID2250_PointCorrds_t ULPoint [4];
  MID2250_PointCorrds_t BRPoint [4];
  unsigned short u32SADThresholdValues [4];
  unsigned short u32MVThresholdValues [4];
  unsigned short u32SensitivityValues [4];
  } MID2250_MDConfig_t;

  Is there a way I can integrate this data type in LabView correctly. I saw people talking about wrapper dll on this forum but I'm a bit confused as to who. Can I create a similar cluster in LabView and pass it to the function using "node of the library call?

  abdel2 wrote:

  I try to use a DLL in LabView that talks about an acquisition card. One of the functions requires a custom data type (MID2250_MDConfig_t) that LabView does not support by default. It is defined in the C header file as follows:

  typedef struct
  {
  int CoordsX;
  int CoordsY;
  } MID2250_PointCorrds_t;

  typedef struct
  {
  MID2250_PointCorrds_t ULPoint [4];
  MID2250_PointCorrds_t BRPoint [4];
  unsigned short u32SADThresholdValues [4];
  unsigned short u32MVThresholdValues [4];
  unsigned short u32SensitivityValues [4];
  } MID2250_MDConfig_t;

  Is there a way I can integrate this data type in LabView correctly. I saw people talking about wrapper dll on this forum but I'm a bit confused as to who. Can I create a similar cluster in LabView and pass it to the function using "node of the library call?

  Since the tables are all fixed size (and not huge), they really are inline in the structure. This means that you can simulate a cluster containing many elements inside because it is the elements of the array. The first Point of the UL would be a cluster containing 4 cluster with each two int32 in it. Ditto for the second element. The third is a cluster with 4 uInt32 and so on.

  Then configure the setting to adjust the type and thread this cluster, and voila.

• Causing problems of custom data type to deploy the shared target RT variable

  I seem to have some difficulty in using a shared variable published network created from a customized data type when it is deployed as an executable on a target of cRIO RT.  I'll start by describing why I think that this is the rub.  I created my RT VI in the LabVIEW (LV 2012) development environment and everything works fine.  This VI is quite simple, because these were quickly devolved into an exercise in debugging.  The RT VI begins by simply flashing the LED to a couple of times and then starts a loop simple acquisition to read some values out of the material using the analytical engine (while still flashing the LED of the user).  After reading the material, the values are grouped in a cluster and written in a shared variable published to the network defined by a custom control type def.  The custom control contains five floats double precision.  If it's important, the RT cRIO system hosts the shared variable in this case.

  So I have that deploy in the development environment, and everything works fine.  The LED flashes merrily along, telling me that the program runs correctly.  Running a VI host who reads the shared network has published variable gives the desired result.  Everything is good.

  Now, I want the cRIO system to run this simple program by itself at startup.  I build, set it as start VI, deploy it, and then restart the cRIO target.  The LED never flashing... the VI doesn't seem to work.  I'll spare you the major part of the work of debugging and access to the end.  I basically "diagram Disabled" various sections of the code up to the VI began to run correctly in an executable file.  I kept reducing the size of the disabled code until something has been disabled: the writing in the shared variable for the custom data type.

  So, I guess my question is this: are custom data types defined by type def would be personalized orders authorized executables to RT?  I read through the cRIO Developers Guide, my book of development in real time course of NOR and the white paper using shared Variables and I see nothing that forbids it.  I know that there are things not allowed in the executable files that are allowed in the development environment (property nodes façade, dialogue live, operating system specific calls, etc.), but no mention of the shared variable type custom data.  Any ideas as to why my VI is running in the development environment, but does not update unless I have delete the entry on the published network variable shared?

  Thank you in advance for your help!

  You must disconnect the data types of variables and then recompile. You can find it useful to keep on disk, a copy of the original lvlib.

  Don't know if this is a bug or not. It was suggested by someone in the forum that putting the ctl files in the right position (the disk? in the draft?) would allow the rtexe start; I did a quick check and it didn't work then I dropped the tests more far.

• Help the insertion of an unknown number of lines in a custom Data Type

  Hi all
  
  I need help in the insertion of an unknown number of lines in a custom Data Type
  
  In Oracle I was thinking something like...
  

  CREATE OR REPLACE TYPE &HKDB_Schema_Name..SOMEDATA AS OBJECT (ID int, Name varchar2);
  /
  CREATE OR REPLACE TYPE &HKDB_Schema_Name..TYP_TABLE AS TABLE OF &HKDB_Schema_Name..SOMEDATA;
  /
  
  CREATE OR REPLACE PROCEDURE &HKDB_Schema_Name..SProc1
  (
  )
  AS
  l_TempTable TYP_TABLE := TYP_TABLE();
  v_count NUMBER := 0;
  l_ID int;
  l_Name varchar2(200);
  BEGIN
   
    LOOP
    -- exit the loop if the select returns no results. (look if exists in l_TempTable)
    v_count := SELECT COUNT(*) FROM Person p WHERE p.ID NOT IN (SELECT ID FROM TABLE(CAST(l_kgListTable AS TEMP_KGID_TABLE)));
  
    -- select the top result
    SELECT p.ID, p.UserName INTO l_ID, l_Name FROM Person p WHERE p.ID NOT IN (SELECT ID FROM TABLE(CAST(l_kgListTable AS TEMP_KGID_TABLE)))  
    AND ROW_NUM = 1;
  
    insert data into custom data type
    l_TempTable.extend;
    l_TempTable(l_TempTable.last) := SOMEDATA(l_ID, l_Name);
  
    EXIT WHEN v_count < 1;
    END LOOP;
  END SProc1;

  While I don't know this will probably do the job, it feels not very effective, have to select where the argument no_lig = 1 and then insert a facility on time. Is there a better way to do it?
  
  Basically, it's a migration of a MSSQL stored procedure where the equivalent would be...
  

  DECLARE @TempTable TABLE (ID int, Name varchar)
  
  INSERT INTO @TempTable (ID, Name) (SELECT ID, UserName FROM Persons)

  Thanks in advance,
  Toby

  Oh sorry you posted that before but I missed it. In this case maybe you should simply remove the

  as "HasChildren"{pre} part. This is only valid for a column name, but you input that expression directly into a type. It is not a column at this point.
  

• How to delete a line item / of a custom Data Type?

  Hi all
  
  I can't tried to delete a line of a custom data type.
  
  As you will see in the code below I add a line to an array of Type (this is done several times). I then loop through each row in the type of array and pass it the id in a separate function. Once it is I so need to remove this item from the array Type - that's where I think my syntax is wrong because I get an error "ORA-00903: invalid table name.
  
  Clear code

   DELETE FROM TABLE(CAST(l_DeleteList AS TEMP_DOCVERSIONID_TABLE)) WHERE docVersionID = l_DocVersID;

  Complete code

  l_DeleteList.extend;
  l_DeleteList(l_DeleteList.last) := DOCVERSIONID(l_DocVersID);
  
  .......................
  
  select count(*) INTO v_count FROM TABLE(CAST(l_DeleteList AS TEMP_DOCVERSIONID_TABLE));
    -- loop temp table and delete document versions
    WHILE v_count > 0
    LOOP
    BEGIN
      SELECT docVersionID INTO l_DocVersID FROM TABLE(CAST(l_DeleteList AS TEMP_DOCVERSIONID_TABLE)) WHERE ROWNUM = 1;
      DeleteSingleDocumentVersion(l_DocVersID);
      DELETE FROM TABLE(CAST(l_DeleteList AS TEMP_DOCVERSIONID_TABLE)) WHERE docVersionID = l_DocVersID;
      select count(*) INTO v_count FROM l_DeleteList;
    END;
    END LOOP;

  Thanks in advance,
  
  Toby

  Trim element removes it from the end of the collection... but you are a loop of the collection from the first to the last clue.

  If you use delete then the item is deleted but index still exists... then array.last and County are not equal...

  You can use something as shown in this example (rather than use a time loop on many items)... after deleting an item to browse a table...

  SQL> Declare
    2     TYPE    TYP_TAB IS TABLE OF PLS_INTEGER ;
    3     my_tab  TYP_TAB := TYP_TAB( 1, 2, 3, 4, 5 );
    4     v       Pls_Integer ;
    5  Begin
    6     my_tab.DELETE(2) ;
    7     v := my_tab.first ;
    8     Loop
    9        Dbms_Output.Put_Line( 'my_tab(' || Ltrim(To_char(v)) || ') = ' || my_tab(v) ) ;
   10        v := my_tab.NEXT(v) ; -- get the next valid subscript
   11        Exit When v IS NULL ;
   12     End loop ;
   13  End ;
   14  /
  my_tab(1) = 1
  my_tab(3) = 3
  my_tab(4) = 4
  my_tab(5) = 5
  

  Published by: ravikumar.sv on August 10, 2009 15:19

• Custom data type

  We use a custom data type container and add variables to use in the sequence inhabitants.

  It seems that the field of the local variable names having to match domain names that they have seized originally in the custom data type container.

  We want to reuse the custom several times in the sequence container for data type and would like to have descriptive field names of their use, which changes throughout the sequence.

  Is it possible to just rename the names of the fields of a local variable is of the type, data type container custom, while maintaining the field names the original custom data type container?

  With the help of TestStand 2013

  Thank you

  Hi CC57,

  I also recommend trying a templateVariable. You can use this to create a container with a particular name that you can copy in various places in the variable pane and change the names of the properties of confined there.

• How to create a custom data type

  Hello

  I'm using Labview 2009 and I am trying to create a custom data type and link it to the global variable that will be deployed in cRIO 9073. I couldn't find a method to achieve this. Please suggest a way to do this.

  Thank you

  Guilhem

  Right-click on a control and go to advanced-> customize.  This will open the control editor.  Change the type of a control to a Type def.  Customize if necessary and save the control.

• How to make your custom data type used in your QListDataModel to QML?

  I have QListDataModel filled with objects of a custom class carying data and defined with Q_DECLARE_METATYPE. So far, it works however I can't access the data in qml:

  e.g. text: ListItemData.Name
  

  I read that this can be solved by letting QML know your custom class/type, but how to do this?

  See

  https://developer.BlackBerry.com/native/documentation/Cascades/dev/integrating_cpp_qml/

  example:

  qmlRegisterType("com.isec7.materials", 1, 0, "Account");
  

• How to select individual fields defined in a data type?

  Hello
  
  I used SQL in the database, but I'm new to most of the features of Oracle. I was reading the book Oracle SQL * more: definitive guide and came across the following tables defined as stated:
  
  SQL > describe employees
  
  < pre >
  Name Null? Type
  ----------------------------------------- -------- ----------------------------
  
  NUMBER OF EMPLOYE_ID
  EMPLOYEE EMPLOYEE_TYPE
  < / pre >
  
  The employee field is a structured type named 'EMPLOYEE_TYPE' defined as
  
  < pre >
  SQL > describe employee_type
  
  Name Null? Type
  ----------------------------------------- -------- ----------------------------
  
  EMPLOYEE_NAME VARCHAR2 (40)
  DATE OF EMPLOYEE_HIRE_DATE
  EMPLOYEE_SALARY NUMBER (9.2)
  < / pre >
  
  I wanted to select just the employee_name and tried what is obvious
  
  Select employee.employee_name employees;
  
  also tried
  
  Select employee_type.employee_name employees;
  
  but none worked. I tried every variation I could think of, searched an answer using google, still do not find the answer.
  
  I'd greatly appreciate to have the answer. It is probably simple, but really, it escapes me at the moment.
  
  Thank you very much for your help,
  
  John.
  
  Published by: user2652839 on July 8, 2010 14:38

  You must use the function TREAT

  SQL> create or replace
    2  type EMPLOYEE_TYPE
    3  as object (EMPLOYEE_NAME VARCHAR2(40),
    4  EMPLOYEE_HIRE_DATE DATE,
    5  EMPLOYEE_SALARY NUMBER(9,2)
    6  );
    7  /
  
  Type created.
  
  SQL> create table employees(EMPLOYEE_ID NUMBER,EMPLOYEE EMPLOYEE_TYPE)
    2  /
  
  Table created.
  
  SQL> insert into employees
    2  select empno,EMPLOYEE_TYPE(ename,hiredate,sal) from emp
    3  /
  
  14 rows created.
  
  SQL> select employee.employee_name from employees;
  select employee.employee_name from employees
         *
  ERROR at line 1:
  ORA-00904: "EMPLOYEE"."EMPLOYEE_NAME": invalid identifier
  
  SQL> select treat(employee as EMPLOYEE_TYPE).employee_name from employees;
  
  TREAT(EMPLOYEEASEMPLOYEE_TYPE).EMPLOYEE_
  ----------------------------------------
  SMITH
  ALLEN
  WARD
  JONES
  MARTIN
  BLAKE
  CLARK
  SCOTT
  
  TREAT(EMPLOYEEASEMPLOYEE_TYPE).EMPLOYEE_
  ----------------------------------------
  KING
  TURNER
  ADAMS
  JAMES
  FORD
  MILLER
  
  14 rows selected.
  
  SQL> 
  

  SY.

• Removal of the custom by TestStand 4.0 data types

  Hello! I use the custom in my TestStand sequence data type. This data type is derived from my own control and is a huge cluster of clusters. It is created in a file of sequence (and not in any *.ini). By changes in the sequence, it becomes necessary to delete existing custom data type and create a new one due to changes in the custom control. How can I remove custom data types?

  I n ' found any possibility to do in Teststand menus. It was not so important, if the custom data type was not so huge.

  Thank you in advance for your answer - maybe it's a workout if no direct solution?

  Hello

  Just see the Type of data in the file in the sequence and highlight the custom data type it, then delete it.

  (Please make sure that you do not have variables defined in your file of sequence that still use the data type you want to remove).

  Concerning

  Ray Farmer

• Customized in SQL data type

  We have all of the custom data type SQL? (Not in PL/SQL)

  We create object and collection types customized in SQL as others have said: but we cannot create scalar data types, custom similar to VARCHAR2 etc - we cannot define our own VARCHAR3 for example.

• export of custom code C data type

  Hello

  I wonder, in TestStand, is there a way I can export a customized data type to the type C struct definition?

  I use TestStand 4.2

  Thank you.

  Peggy

  You will need to make a series of API calls, I think.

  I suppose that you have an active container with passing C struct type, otherwise you will have no subproperties in C data types match. Then the following API functions should help you:

  • GetNumSubProperties gives you the subproperties number in the type of container. Then you can make a loop on them. For each
    • GetNthSubPropertyName to get the name of the Member in the type of container.
    • GetStructMemberType gives you the type C, a subproperty maps to.
    • GetStructMemberStringBufferSize, GetStructMemberStorage and GetStructMemberArrayStorage tell you, how structs and arrays are stored in the container (inline, pointers...)
  • GetStructPacking gives you the padding byte used to pass the struct. For Visual C++, for example, this can be translated into a #pragma pack surrounding the type.

  I think you need to use standard Win32 file operations to actually write the information in a header file, as the built-in functions of WriteFile of TestStand write AFAIK TestStand file formats.

  Maybe someone knows an easier way. Hope that helps, anyway.

  Concerning

  Peter

• Modification of the data types of the custom shared variables

  My application includes a library containing a number of shared single process variables. I use type defs to create the shared variable "of the custom control." I know that shared variables do not-automatic update since the type defs, so I'm updating shared variables (data type, do a right click, properties) whenever I update the type definitions.  However, if I make a change to a type design that does not change the data type, for example to change the labels controls, these changes will be reflected in the shared variable.  The data types of variable window shared list contains entries for each previous update, which indicates he uses the previous entries.  How can I make the window of properties of shared variables 'forget' my previous defs type wandering without deleting the variable total? Withdrawal and replacement would be troublesome because the done variable references throughout my project.

  Thank you

  Wes

  The variable is not in the Distributed System Manager, or Manager of the Variable, and cancellation of the deployment has not been resolved.  However, I found Labview from closing completely and reboot clears the memory of the previously used custom data types that sees the library.  Thus, the effective workaround I found is:

  1 make a significant change to the data type of the type (per your suggestion) FED. Record.

  2 - redefine the variable screw-notice type FED.

  3. save the project. Close and restart labview.

  4 - the old def type is now disabled.

  5. return the significant change of the def type, implement trivial change and save.

  6 redefine the variable using the type correct now def. Viola!

  Thank you!

• datamodeler: Data Type of Structure

  I'm working on a design with many entities having common attributes (related to the audit) applicable to each of them. I think to define a structured data Type that will be used in each of them. It is easy to create new separate and Types of data Collection by right-clicking their nodes, it seems that there is a bug in creating a new structured data Type using the same method. There is no work around for this?
  
  Thank you
  
  Codjovi

  Hi codjovi,

  you need to do "Data Types" visible pattern in order to be able to create structured - types use view the pop-up menu on the node "data types."
  Structured types are created only on diagram in the current version.

  Best regards
  Philippe

  In my view, there is a brief description of the types of data model in aid.

  Published by: Philip Stoyanov, March 12, 2009 06:02

• Using film as a data type time codes?

  I work in the film, and I was hoping to use numbers to help me create quotes for a VFX project (based on cost per second). I tried to create a custom data type, and it works almost out of an important obstacle. -That, even if he is HOURS: MINUTES: seconds, DURING which it is not no matter what equivalent of FRAMES (which are usually 24, 25 or 30 depending on what video format you are working in).

  I use Adobe Premiere to export a list of lots of files under a CSV file, which are fine numbers. However, manipulate these data is - I would say - impossible without the support of the video time code. Anyone working on a solution for this? Or is there a suggestion feature to me link to forward this to the team of numbers?

  Thank you very much

  You can give your comments and suggestions to the numbers > provide comments numbers in your menu.

  But everything first, perhaps you could post more details of your problem, what your imported data looks like and what result you want.

  If the imported data includes a column for the frames I think you can convert that.  In all cases, the specifics would help.

  Wayne explains how to post a screenshot in this thing.

  SG