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D.13.1.48 getCone

Procedure from library gfan.lib (see gfan_lib).

Usage:
getCone(f,d,i[,m]); f fan, d int, i int, m int

Assume:
d is between 0 and ambientDimension(f)
i is between 1 and numberOfConesOfDimension(f,d,o,m)

Return:
cone, returns in the fan f of all cones in dimension d the i-th cone if m!=0, it will enumerate over maximal cones only

Example:
 
LIB "gfan.lib";
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);
==> AMBIENT_DIM
==> 3
==> FACETS
==> 0,0,1,
==> 0,1,0
==> LINEAR_SPAN
==> -1,0,0
==> 
getCone(f,2,2,0);
==> AMBIENT_DIM
==> 3
==> FACETS
==> 0,0,1,
==> 1,0,0
==> LINEAR_SPAN
==> 0,-1,0
==>