===== Primitive: Cone with distance property (x-axis) =====

**Call**: hfDConeX(x,center,R);

**Parameters**:

x - point coordinates array

center - cone apex array

R - cone radius at height=1 

===== Primitive: Cone with distance property (y-axis) =====

**Call**: hfDConeY(x,center,R);

**Parameters**:

x - point coordinates array

center - cone apex array

R - cone radius at height=1 

===== Primitive: Cone with distance property (z-axis) =====

**Call**: hfDConeZ(x,center,R);

**Parameters**:

x - point coordinates array

center - cone apex array

R - cone radius at height=1