convhulln.cc File Reference

#include <sstream>
#include "Cell.h"
#include "defun-dld.h"
#include "error.h"
#include "oct-obj.h"
#include "parse.h"
#include "unwind-prot.h"
#include "oct-qhull.h"

Include dependency graph for convhulln.cc:

Go to the source code of this file.

Functions
static void	close_fcn (FILE *f)
	DEFUN_DLD (convhulln, args, nargout,"-*- texinfo -*-\n\ @deftypefn {Loadable Function} {@var{h} =} convhulln (@var{pts})\n\ @deftypefnx {Loadable Function} {@var{h} =} convhulln (@var{pts}, @var{options})\n\ @deftypefnx {Loadable Function} {[@var{h}, @var{v}] =} convhulln (@dots{})\n\ Compute the convex hull of the set of points @var{pts} which is a matrix\n\ of size [n, dim] containing n points in a space of dimension dim.\n\ The hull @var{h} is an index vector into the set of points and specifies\n\ which points form the enclosing hull.\n\ \n\ An optional second argument, which must be a string or cell array of strings,\n\ contains options passed to the underlying qhull command.\n\ See the documentation for the Qhull library for details\n\ @url{http://www.qhull.org/html/qh-quick.htm#options}.\n\ The default options depend on the dimension of the input:\n\ \n\ @itemize\n\ @item 2D, 3D, 4D: @var{options} = @code{@{\"Qt\"@}}\n\ \n\ @item 5D and higher: @var{options} = @code{@{\"Qt\", \"Qx\"@}}\n\ @end itemize\n\ \n\ If @var{options} is not present or @code{[]} then the default arguments are\n\ used. Otherwise, @var{options} replaces the default argument list.\n\ To append user options to the defaults it is necessary to repeat the\n\ default arguments in @var{options}. Use a null string to pass no arguments.\n\ \n\ If the second output @var{v} is requested the volume of the enclosing\n\ convex hull is calculated.\n\n\ @seealso{convhull, delaunayn, voronoin}\n\ @end deftypefn")
static bool	octave_qhull_dims_ok (octave_idx_type dim, octave_idx_type n, const char *who)

Function Documentation

static void close_fcn ( FILE *  f )

static

Definition at line 53 of file convhulln.cc.

Referenced by DEFUN_DLD().

DEFUN_DLD	(	convhulln	,
		args	,
		nargout
	)

Definition at line 75 of file convhulln.cc.

References action_container::add_fcn(), close_fcn(), Array< T >::columns(), error(), Array< T >::fortran_vec(), octave_value_list::length(), Array< T >::numel(), OCTAVE_LOCAL_BUFFER, octave_qhull_dims_ok(), octave_value(), print_usage(), Matrix::resize(), Array< T >::rows(), Matrix::transpose(), and warning().

static bool octave_qhull_dims_ok ( octave_idx_type  dim, octave_idx_type  n, const char *  who  )

static

Definition at line 59 of file convhulln.cc.

References error(), and max().

Referenced by DEFUN_DLD().