# HOOPS Exchange - v5.30

Format Updates

Format | Updated Version
--- | ---
SOLIDWORKS | 2013

## Enhancements

New Tessellation Controls

Two new parameters have been added for controlling tessellation:

- m_bUseHeightInsteadOfRatio** When m_eTessellationLevelOfDetail is set to kA3DTessLODUserDefined and m_bUseHeightInsteadOfRatio is set to TRUE, the tessellation algorithm is controlled by the m_dMaxChordHeight value. m_dMaxChordHeight specifies the maximum distance between a tessellation triangle and the actual surface geometry. When m_bUseHeightInsteadOfRatio is set to FALSE, then the tessellation algorithm is controlled by the m_dChordHeightRatio value.
- m_dMaximalTriangleEdgeLength** This parameter specifies the maximum edge length of a tessellation triangle. If it is set to 0, then this parameter is not used when calculating the tessellation.

JT PMI

When reading PMI from a JT file, the link between PMI and its associated geometry is now maintained.

Automatic Healing when Exporting to X_T and SAT

Exchange now automatically heals invalid geometry and topology when exporting to the X_T (Parasolid) and SAT (ACIS) formats.

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