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Qhull format options (F)

This section lists the format options for Qhull. These options are indicated by 'F' followed by a letter. See Output, Print, and Geomview for other output options.

» Programs • Options • Output • Formats • Geomview • Print • Qhull • Precision • Trace • Functions

Additional input & output formats

These options allow for automatic processing of Qhull output. Options 'i', 'o', 'n', and 'p' may also be used.

: Summary and control
FA: compute total area and volume for option 's'
FV: print average vertex (interior point for 'qhalf')
FQ: print command for qhull and input
FO: print options to stderr or stdout
FS: print sizes: total area and volume
Fs: print summary: dim, #points, total vertices and facets, #vertices, #facets, max outer and inner plane
Fd: use format for input (offset first)
FD: use cdd format for normals (offset first)
FM: print Maple output (2-d and 3-d)

: Facets, points, and vertices
Fa: print area for each facet
FC: print centrum for each facet
Fc: print coplanar points for each facet
Fx: print extreme points (i.e., vertices) of convex hull.
FF: print facets w/o ridges
FI: print ID for each facet
Fi: print inner planes for each facet
Fm: print merge count for each facet (511 max)
FP: print nearest vertex for coplanar points
Fn: print neighboring facets for each facet
FN: print neighboring facets for each point
Fo: print outer planes for each facet
Ft: print triangulation with added points
Fv: print vertices for each facet

: Delaunay, Voronoi, and halfspace
Fx: print extreme input sites of Delaunay triangulation or Voronoi diagram.
Fp: print points at halfspace intersections
Fi: print separating hyperplanes for inner, bounded Voronoi regions
Fo: print separating hyperplanes for outer, unbounded Voronoi regions
Fv: print Voronoi diagram as ridges for each input pair
FC: print Voronoi vertex ("center") for each facet

»Fa - print area for each facet

The first line is the number of facets. The remaining lines are the area for each facet, one facet per line. See 'FA' and 'FS' for computing the total area