TetGenGetFaces[expr] gets the faces in a TetGen expression.
TetGenGetFacetHoles[expr] gets the holes in the facets.
TetGenGetFacetMarkers[expr] returns the facet markers for a TetGen expression.
TetGenGetFacets[expr] returns the facets for a TetGen expression.
TetGenGetHoles[expr] returns the holes in a TetGen expression.
TetGenGetNeighbors[expr] gets the neighbors in a TetGen expression.
TetGenGetPointMarkers[expr] returns the point markers in a TetGen expression.
TetGenGetPoints[expr] returns the points in a TetGen expression.
TetGenGetRegions[expr] returns the regions in a TetGen expression.
TetGenImport["file.ext", expr] imports data from a file into a TetGen expression. TetGenImport["file", expr, "format"] imports data in the specified format.