4.23.1.6 getCone

Syntax:

getCone( fan f, int dimension, int index )
getCone( fan f, int dimension, int index, int orbit )
getCone( fan f, int dimension, int index, int orbit, int maximal )

Type:

cone

Purpose:

cone (orbit=0) or orbit (orbit=1) of a certain index (ranges from 1 to numberOfConesOfDimension(f,*,*,*)) in a given dimension; if maximal=0, all cones and orbits are considered, if maximal=1, only maximal cones and orbits are considered; the default flags for orbit and maximal is 0.

Example:

LIB"gfanlib.so"; intmat M[3][3]= 1,0,0, 0,1,0, 0,0,1; cone c=coneViaPoints(M); fan f=emptyFan(3); insertCone(f,c); getCone(f,2,1,0,0); ==> AMBIENT_DIM ==> 3 ==> FACETS ==> 0,0,1, ==> 0,1,0 ==> LINEAR_SPAN ==> -1,0,0 ==> getCone(f,2,2,0,0); ==> AMBIENT_DIM ==> 3 ==> FACETS ==> 0,0,1, ==> 1,0,0 ==> LINEAR_SPAN ==> 0,-1,0 ==> getCone(f,2,3,0,0); ==> AMBIENT_DIM ==> 3 ==> FACETS ==> 0,1,0, ==> 1,0,0 ==> LINEAR_SPAN ==> 0,0,-1 ==>