6 modules - PI-VR GmbH

• -narrow_reg_repair: narrow region repair: the repair procedure consistsof hueristics to detect when edges are close enough for the facet edges toclash; the repair aligns nearby edges facets; this reduces the frequency ofclockwise and upside down facets, but has a performance penalty;• -edgeQLevel : edge quality level:· _MEDIUM: edges are to be faceted to a tolerance equal to the surfacetolerance;· _BETTER: edges are to be faceted to a tolerance equal to half the surfacetolerance;· _BEST: edges are to be faceted to a tolerance equal to one quarter thesurface tolerance;• -gridMode : specifies grid mode for tessellation:· AF_GRID_NONE: no grid is applied; tessellation depends just on -surtoland -nortol;· AF_GRID_TO_EDGES: a grid is applied for tessellation; intersections betweengrid lines and surface are inserted as vertices;default is gmode=AF_GRID_NONE• -edgeSagTol : edge sag tolerance as fraction of surface: sets the ratiobetween face surface/normal tolerance and edge surface/normal tolerance;default is frac=0.5;• -maxGL : specifies maximum number of grid line (limitation of gridsubdivision); default is mgl=512• -minUGL : specifies minimum number of grid line in the u directionof the parametric surface; default is mugl=0.0 (to ignore max. number ofgrid lines in u direction)• -minVGL : specifies minimum number of grid line in the v directionof the parametric surface; default is mvgl=0.0 (to ignore max. number ofgrid lines in v direction)165