SOFiSTiK CDB Interfaces

https://docs.sofistik.com/2024/en
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SOFiSTiK CDB Interfaces provides programming APIs and CADINP language access to read and manipulate...
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### Locate configured workbook example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/vba/examples/vba_example1.html

Path to the directory containing the pre-configured workbook example.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\vba\configure_workbook
```

--------------------------------

### Example file path

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/vba/examples/vba_example2.html

The local directory path where the example files are located within the SOFiSTiK installation.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\vba\read_nodes
```

--------------------------------

### Locate Python Example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/python/examples/python_example1.html

Path to the directory containing the example source code.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\python\python_3.x\connect_to_cdb
```

--------------------------------

### CDB Path Example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/python/examples/python_example5.html

The default location for the Python project example.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\python\python_3.x\number2text
```

--------------------------------

### Example File Path

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/c_sharp/examples/c_sharp_example1.html

The local directory path where the C# connection example project is located.

```text
C:\sofistik_installation\2024\SOFiSTiK 2024\interfaces\examples\c#\connect_to_cdb
```

--------------------------------

### Interface Examples Directory Path

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/introduction/about_cdb/structure.html

The local file system path where interface examples are located.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\
```

--------------------------------

### C++ Example Path

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/cpp/examples/cpp_example5.html

Location of the C++ example project for decoding loadcase titles.

```text
C:\<sofistik_installation>\2024\SOFiSTiK 2024\interfaces\examples\c++\number2text
```

--------------------------------

### Correct Sequence Example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/cadinp/template/at_name.html

Demonstrates the correct sequence for accessing node data.

```CADINP
@KEY N_DISP 1
LET#NR @NR
LET#UX @UX
! NR and UX - belong to the same node
```

--------------------------------

### Launch Teddy via Command Line

Source: https://docs.sofistik.com/2024/en/fea/teddy/introduction/general_information.html

Use command line arguments to specify files, line numbers, or instance configurations when starting Teddy.

```bash
ted [/options] [filename] [line column]
```

--------------------------------

### Generated SOFiLOAD Input Example

Source: https://docs.sofistik.com/2024/en/fea/ssd/tasks/task_combine_loads/task_combine_loads.html

Example of the SOFiLOAD input generated by the task, demonstrating load case definitions and combination factors.

```SOFiSTiK
PROG SOFiLOAD
HEAD Combine loads

LC NO 15010 TYPE (D)  TITL "LC 15010 comb + Imp 61"
COPY NO 1 FACT 1
COPY NO 2 FACT 1
COPY NO 11 FACT 1.5
COPY NO 37 FACT 1.05
COPY NO 39 FACT 1.05
COPY NO 40 FACT 1.05
COPY NO 47 FACT 1.05
COPY NO 49 FACT 1.05
COPY NO 50 FACT 1.05
COPY NO 61 FACT 1

LC NO 15011 TYPE (D)  TITL "LC 15011 comb - Imp 60"
COPY NO 1 FACT 1.35
COPY NO 2 FACT 1.35
COPY NO 10 FACT 0.9
COPY NO 21 FACT 0.75
COPY NO 34 FACT 1.5
COPY NO 35 FACT 1.5
COPY NO 36 FACT 1.5
COPY NO 38 FACT 1.5
COPY NO 44 FACT 1.5
COPY NO 45 FACT 1.5
COPY NO 46 FACT 1.5
COPY NO 48 FACT 1.5
COPY NO 60 FACT -1

LC NO 15012 TYPE (D)  TITL "(1)+(2)+1.5(34)+1.5(37)+1.5(40)+1.5(44)+1.5(47)+1.5(50)"
COPY NO 1 FACT 1
COPY NO 2 FACT 1
COPY NO 34 FACT 1.5
COPY NO 37 FACT 1.5
COPY NO 40 FACT 1.5
COPY NO 44 FACT 1.5
COPY NO 47 FACT 1.5
COPY NO 50 FACT 1.5

END
```

--------------------------------

### Define Loadcase Storage Sequences

Source: https://docs.sofistik.com/2024/en/fea/ssd/tasks/task_steel_buckling_resistance/task_steel_buckling_resistance.html

Examples for specifying loadcase numbers for result storage using comma separators and range hyphens.

```text
951
```

```text
951,953
```

```text
951,952,955-958
```

--------------------------------

### MAXIMA Combination 2 Configuration

Source: https://docs.sofistik.com/2024/en/tutorials/superpositions/action-sup-alex-excl-exex/superposition_action-sup-alex-excl-exex.html

Example of defining action categories and alternative load groups using SUP EXEX to restrict load case selection within variable actions.

```MAXIMA
+PROG MAXIMA
HEAD Combination 2
ECHO LOAD,FACT
COMB 2 EXTR desi TYPE desi BASE 2200
 ACT G
 ACT X_1
   LC 11  TYPE AG1              ! different permanent load groups for X_1, X_2 and X_3
 ACT X_2
   LC 12  TYPE AG2
 ACT X_3
   LC 13  TYPE AG3
 ACT Z_1  SUP EXEX              ! modifiaction SUP EXEX alternativ within action  or defintion at LC
   ! LC (21 29 1) TYPE A7       ! same variable load group for Z_1, Z_2 and Z_3
 ACT Z_2  SUP EXEX
   ! LC (31 39 1) TYPE A7
 ACT Z_3  SUP EXEX
   ! LC (41 49 1) TYPE A7
SUPP 2 EXTR mami ETYP beam TYPE MY FROM 20010 X 1[-]      ! full output for hogging moment column 3 = end of beam no. 20010
END
```

--------------------------------

### Define Structural Line Sequences

Source: https://docs.sofistik.com/2024/en/fea/ssd/tasks/task_steel_buckling_resistance/task_steel_buckling_resistance.html

Examples for specifying sequences of structural lines using comma separators and range hyphens.

```text
1,2
```

```text
1,2,10-12
```

--------------------------------

### Connect to CDB Example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/fortran/examples/fortran_example1.html

Demonstrates the initialization of a CDB connection, status checking, and closing the connection. Ensure the file path is correctly set for your environment.

```fortran
program connect_to_CDB
implicit none

! Variables
integer :: nid, l, ie, index, istat
character(len=30)   :: filename
character(len=72)   :: text

index = 99
! input here the CDB name or the CDB path
filename = "S:\test\connect_to_cdb.cdb"

! Connect to CDB
! In this example 64bit debug DLL is used
call cdinit(filename, index)
if (nid > 0) then
    write(*,*) "  cdb_init of ", filename," succesfull ", nid
else
    write(*,*) "  cdb_init of ", filename," not succesfull ", nid
endif

! Check status
call cdstat(index, istat)
print *, "CDB status is: ", istat

! Lets close the CDB now
call cdclose(0)

! Check status again, if closed, status = 0
call cdstat(index, istat)
print *, "CDB status is: ", istat

! Press <ENTER> key to close the program
print *, "Press <ENTER> key to close the program"
read (*,*)

end program connect_to_CDB
```

--------------------------------

### Connect to CDB in VB.NET

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/vb_net/examples/vb_net_example1.html

Full example demonstrating how to set the environment path, initialize the CDB connection, check status, and close the database.

```vbnet
Imports System.Runtime.InteropServices

Module main
   'In this example, 64bit DLLs are used
   Public Declare Function sof_cdb_init Lib "sof_cdb_w-2024.dll" Alias "VB_sof_cdb_init" (
      ByVal name As String,
      ByVal InitType As Integer
   ) As Integer

   Public Declare Function sof_cdb_status Lib "sof_cdb_w-2024.dll" Alias "VB_sof_cdb_status" (
      ByVal Index As Integer
   ) As Integer

   Public Declare Function sof_cdb_close Lib "sof_cdb_w-2024.dll" Alias "VB_sof_cdb_close" (
      ByVal Index As Integer
   ) As Integer

   Sub Main()
      Dim Filename As String
      Dim Index As Integer
      Dim Path As String
      Dim analysisPath As String
      Dim analysisPath2 As String

      'Path of the SOFiSTIK Directory
      analysisPath = "C:\sofistik_installation\trunk\SOFiSTiK trunk\interfaces\64bit"
      analysisPath2 = "C:\sofistik_installation\trunk\SOFiSTiK trunk"

      'Set the environment variable
      Path = Environment.GetEnvironmentVariable("path")
      Path = analysisPath2 + ";" + analysisPath + ";" + Path
      Environment.SetEnvironmentVariable("path", Path)

      'Filename = full path with name of the cdb
      Filename = "S:\test\test.cdb"

      ' To connect to the CDB we will use
      Index = sof_cdb_init(Filename, 99)
      If Index < 0 Then
            Console.WriteLine("ERROR: Index= " & Index & " < 0 - see clib1.h for meaning of error codes")
            Console.ReadKey()
            Exit Sub
      ElseIf Index = 0 Then
            Console.WriteLine("ERROR: Index= " & Index & " - The File is not a database")
            Console.ReadKey()
            Exit Sub
      End If

      ' Output the index and status
      Console.WriteLine("Index: " & Index)
      'This outputs the status of the CDB, please refer to cdbase.chm for more details
      Console.WriteLine("CDB Status: " & sof_cdb_status(Index))

      ' Close the CDB
      Call sof_cdb_close(0)

      'Check if CDB closed succesfully
      If sof_cdb_status(Index) = 0 Then
            Console.WriteLine("CDB closed succesfully, status = 0")
      End If

      ' Press any key to close the program
      Console.Write("Press any <key> to close the program")
      Console.ReadKey()

   End Sub
End Module
```

--------------------------------

### Error Message Example for Missing KWL

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/cadinp/template/at_key.html

Example of an error message when the KWL parameter is missing.

```Text
+++++ error no. 10144 in program SOF_VAR
This index @KEY requires an explicit definition of a number at KWL
```

--------------------------------

### Normal Force Output Example

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/cadinp/template/at_key.html

Example demonstrating the output of normal force for a specific steel section.

```CADiNP
@KEY SECT_PLA KWL 2 SEL3 101
LET#N @WPN
//ID (=6) is defined by default via SECT_PLA,
//but counts also all sections string (=sel1)
```

--------------------------------

### Connect to CDB Database

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/fortran/examples/fortran_example4.html

Initializes the connection to the specified CDB file using cdinit.

```fortran
! Define the parameters for cdinti()
! nid = 99,     test if NAME is a valid database and open the base if possible.
!               Return with the assigned index.
!               If the file does not exist, it will be created.

nid=99
file = "simple_span_girder.cdb"   !name of the cdb or the full path

! Connect to the CDB
call cdinit(file,nid)
if (nid > 0) then
   write(*,*) "  cdb_init of ", file," successful ", nid
else
   write(*,*) "  cdb_init of ", file," not successful ", nid
endif
```

--------------------------------

### Error Message Example for Missing Structure

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/cadinp/template/at_key.html

Example of an error message when the database does not contain the required structure.

```Text
+++++ error no. 10143 in program SOF_VAR
CDBASE.CDB does not contain a suitable structure for @KEY STU5
```

--------------------------------

### Iteration Loop Condition

Source: https://docs.sofistik.com/2024/en/cdb_interfaces/vb_net/examples/vb_net_example4.html

Example of a loop condition used for iterative calculations.

```vbnet
Do While (Mrd <= Meds) And (mu <= 0.296)
```
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