#ifndef __GEO_TREE_SIMPLIFIER__
#define __GEO_TREE_SIMPLIFIER__

#include "GeoMesh.h"
#include "GeoTreeSimpSequence.h"


namespace Geometry
{
	/// Tree Simplifier interface 
	/*** This module is used by LODTree to simplify leaves of a tree. It contains functions that generate simplified
	versions of 3D objects made out of quads (represented as pairs of texture-mapped triangles). Given a 3D object, this
	module computes	a sequence of geometric transformations	that reduce the object’s geometric detail while preserving
	its appearance.\n\n

	For each simplification step, the module returns a simplification sequence containing the leaf collapsed, the two 
	leaves being removed, and the resulting leaf for that contraction.\n\n

	
Inputs:\n
	- A pointer to the Geometry::Mesh object containing the tree to be simplified.
	.

Outputs:\n
	-# The simplified mesh, contained in a Geometry::Mesh object.
	-# Simplification sequence, represented by a Geometry::TreeSimplificationSequence object.
	*/

	class TreeSimplifier
	{
	public:
		/// Class constructor. Retrieves a pointer to a valid Mesh object to simplify
		TreeSimplifier (const Geometry::Mesh *);

		/// Class destructor.
		~TreeSimplifier (void);

		/// Copy constructor
		//TreeSimplifier(const TreeSimplifier&);

		/// Assignment operator
		//TreeSimplifier& operator =(const TreeSimplifier&);

		/// Starts the simplification process. Receives as a parameter the LOD factor in a range of [0,1].
		void Simplify (Geometry::Real);
	
		/// Returns the simplified mesh.
		Mesh *GetMesh ();

		/// Returns the simplification sequence for leaves.
		TreeSimplificationSequence *GetSimplificationSequence();
	};

}

#endif