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#ifndef __HMESH_BUILD_MANIFOLD_H__

#define __HMESH_BUILD_MANIFOLD_H__

#include <vector>

#include "HMesh/Manifold.h"

#include "Geometry/TriMesh.h"

namespace HMesh

{

  /** Build a manifold from an indexed face set. The arguments are 

      the manifold m, the number of vertices, no_vertices, the vector 

      of vertices, vertvec, the number of faces, no_faces. facevec 

      is an array where each entry indicates the number of vertices

      in that face. The array indices contains all the corresponding 

      vertex indices in one concatenated list. touch is an optional array 

      of touch values for the vertices. */

	void build_manifold(HMesh::Manifold& m,

			    int no_vertices,

			    const CGLA::Vec3f* vertvec,

			    int no_faces,

			    const int *facevec,

			    const int * indices,

			    const int * touch=0);

	/// Build a manifold directly from a TriMesh.

	inline void build_manifold(HMesh::Manifold& m, const Geometry::TriMesh& mesh)

	{

		std::vector<int> faces(mesh.geometry.no_faces(), 3);

		build_manifold(m, mesh.geometry.no_vertices(), 

						  &mesh.geometry.vertex(0), 

						  faces.size(), &faces[0], 

						  reinterpret_cast<const int*>(&mesh.geometry.face(0)));

	}

}

#endif