Call: hfDConeX(x,center,R);
Parameters:
x - point coordinates array
center - cone apex array
R - cone radius at height=1
Call: hfDConeY(x,center,R);
Parameters:
x - point coordinates array
center - cone apex array
R - cone radius at height=1
Call: hfDConeZ(x,center,R);
Parameters:
x - point coordinates array
center - cone apex array
R - cone radius at height=1