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 # export\_ply\_geometries

 Last update: 16.07.2026 

<a id="compolyx.Model.export_ply_geometries"></a>

## Model.export\_ply\_geometries(filename, plies=\[\], boundary=True, surface=True, offset\_type='middle\_offset', direction\_arrows=False, first\_direction=True, second\_direction=False, arrow\_length=1.0, arrow\_type='no\_arrow')

Exports the surface, boundary, and/or fiber directions of modeling, production, and analysis ply to .igs or .step file.

### Parameters

- filename: File path (available extensions are iges, igs, step, stp, and stl).
- plies: List of plies (available options are modeling, production, and analysis plies).
- boundary: Boolean whether to export the boundary. Default is ‘True’.
- surface: Boolean whether to export the ply surface. Default is ‘True’.
- offset\_type: Offset type. Valid types: ‘no\_offset’, ‘middle\_offset’ (default), ‘top\_offset’, and ‘bottom\_offset’.
- direction\_arrows: Boolean whether to export the direction arrows. Default is ‘False’.
- first\_direction: Boolean whether to export the first (main) material direction. Default is ‘True’.
- second\_direction: Boolean whether to export the second material direction. Default is ‘False’.
- arrow\_length: Length of the arrows. Default is ‘1’.
- arrow\_type: Defines the arrow type. Valid types: ‘standard\_arrow’, ‘no\_arrow’ (default), and ‘half\_arrow’.

Note: Directions and boundaries are not supported by the STL format.