SC/TETRA Interface

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The translator creates a grid file (PRE file) in accordance with the SC/Tetra file format from Software Cradle Co., Ltd.

Creating the SC/Tetra PRE File

The translator writes the SC/Tetra PRE file using a 3D unstructured domain file. The element types supported by the translator are tetrahedron, pyramid, prism and hexahedron. To create the SC/Tetra PRE file, go to "Output Menu > Select Solver" and select the translator "SC/Tetra". After clicking "Write input" you can specify options for the SC/Tetra interface:

• select an existing 3D unstructured domain file
• give the name of the SC/Tetra PRE file
• option to specify a scaling factor (default is 1.0)
• select single or double precision

The interface generates the SC/Tetra file in the current project directory. The suffix pre is automatically added to the SC/Tetra file name. The PRE file is written in FORTRAN UNFORMATTED BIG ENDIAN data format.

The translator supports the following parts of the PRE file:

• Header part:
  • HEADER = 'CRDL-FLD'
  • IVSN = 4
• Preface data part
  • GridType: Always unstructured
  • Dimension: Always 3
  • Bias: Always 0
• Main data part
  • LS_CoordinateSystem: Always 0
  • LS_Elements
  • LS_GrpOfElements: The group number of each element is set to the family_PID + 2.
  • LS_MatOfElement: The material number of each element is set to the family_PID.
  • LS_Nodes
  • LS_SctRegions: One region is created for each part. A region can be composed of 2D or 3D elements, but not a mix of both.

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