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Reference guides are available for functions and commands supported by OML, Tcl, and Python.
Reference Guide for OpenMatrix Language Functions
The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
CAE Writer Commands
closeh3dfile
Closes an H3D file opened by createh3dfile(). Requires the fileID returned by createh3dfile as an argument.

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- Scripting Guide for OpenMatrix Language
  OpenMatrix is a mathematical scripting language.
- Reference Guide for OpenMatrix Language Functions
  The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
  - ABF Commands
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  - CAE Writer Commands
    - closeh3dfile
      Closes an H3D file opened by createh3dfile(). Requires the fileID returned by createh3dfile as an argument.
    - createh3ddatatype
      Creates a datatype to be added to the H3D file.
    - createh3dfile
      Creates the H3D file and returns a file handle. Existing files are overwritten or appended.
    - createh3dlayer
      Creates a layer to be added to the H3D file.
    - createh3dpool
      Creates a pool to be added to the H3D file
    - createh3dsubcase
      Creates a subcase to be added to the H3D file. This is optional.
    - datah3dtypehascorners
      Queries if a datatype may accept corner data at writing.
    - geth3ddatatypebind
      Gets data binding in a datatype.
    - geth3ddatatypeformat
      Gets data format in a datatype.
    - geth3ddatatypes
      Gets defined datatypes inside an open instance.
    - geth3dlayers
      Gets defined pools inside an open instance.
    - geth3dpools
      Gets defined pools inside an open instance.
    - geth3dsubcases
      Gets all defined subcases inside an open instance.
    - seth3dcompression
      Sets compression level of the h3d file, which applies to further writings into the file.
    - subcaseh3discomplex
      Queries if a subcase can contain complex data.
    - subcaseh3dnumberofsims
      Queries the number of simulations defined in a subcase.
    - subcaseh3dsimsnames
      Gets all defined simulations inside in a subcase.
    - subcaseh3dsteps
      Gets associated timestep for each simulation in a subcase.
    - writeh3ddata
      Writes data in an H3D file.
    - writersp
      Writes data in a RSP file.
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- Python in Compose Reference Guide
Appendix
Get help for the optional libraries that are available in the Extension Manager.
Frequently Asked Questions
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closeh3dfile

Closes an H3D file opened by createh3dfile(). Requires the fileID returned by createh3dfile as an argument.

Attention: Valid only with Altair CAE Readers and Writers Extension.

Syntax

R = closeh3dfile(fid)

Inputs

fid: Integer representing the file ID.; Type: double | integer

Outputs

R: Numerical equivalent true/false.

Example

fid = createh3dfile('C:/test.h3d')
R = closeh3dfile(fid)

fid = 41
R = 1