TetGen Writer Parameters

The TetGen writer allows the output format to be selected on a per-feature type basis. Supported formats are .poly and .smesh.

Output Separate .node File

TetGen supports a separate .node file containing vertex information alongside .poly and .smesh files.

When selected, the writer will generate a separate .node file for all features written to this feature type, and the corresponding .poly or .smesh file will not contain vertex data.

Move to Local Coordinate System

PRJ_ONLY: A companion .prj file containing the coordinate system and having the same name as the primary data file will be written in the same directory .
Yes: In addition to writing the .prj file as in the PRJ_ONLY option, a companion .fwt file with the same name as the primary data file will be written in the same directory, and the coordinates of all the points in the written features will be normalized to the interval [-0.5, 0.5] on the largest side of their XYZ-bounding cube.

The other dimensions will be scaled proportionally. The transformation matrix required to scale the model back to world coordinates is contained in the .fwt file. This can be used to improve precision of the written coordinates.