#ifndef _AmEdge
#define _AmEdge
//
// Class:    AmEdge
//
// Description:
//              The object of this class represents an edge 
//              with one field pointing to another edge.
//
//              AmEdge:
//                          ---------------
//                          | fEdgeId     |
//                          ---------------
//                          | fStartIndex |
//                          ---------------
//                          | fEndIndex   |
//                          ---------------
//                          | fNextEdge   |
//                          ---------------
//                               |
//
//
/*
//-
// ==========================================================================
// Copyright (C) 1995 - 2005 Alias Systems Corp. and/or its licensors.  All 
// rights reserved. 
// 
// The coded instructions, statements, computer programs, and/or related 
// material (collectively the "Data") in these files are provided by Alias 
// Systems Corp. ("Alias") and/or its licensors for the exclusive use of the 
// Customer (as defined in the Alias Software License Agreement that 
// accompanies this Alias software). Such Customer has the right to use, 
// modify, and incorporate the Data into other products and to distribute such 
// products for use by end-users.
//  
// THE DATA IS PROVIDED "AS IS".  ALIAS HEREBY DISCLAIMS ALL WARRANTIES 
// RELATING TO THE DATA, INCLUDING, WITHOUT LIMITATION, ANY AND ALL EXPRESS OR 
// IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND/OR FITNESS FOR A 
// PARTICULAR PURPOSE. IN NO EVENT SHALL ALIAS BE LIABLE FOR ANY DAMAGES 
// WHATSOEVER, WHETHER DIRECT, INDIRECT, SPECIAL, OR PUNITIVE, WHETHER IN AN 
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, OR IN EQUITY, 
// ARISING OUT OF ACCESS TO, USE OF, OR RELIANCE UPON THE DATA.
// ==========================================================================
//+
*/

class AmEdge {

public:

	AmEdge               ( );
	~AmEdge              ( );
	
	void setEdge         ( int edgeId, int startIndex, int endIndex,
						   double *startNormal, double *endNormal );

	int edgeId           ( );
	int startIndex       ( );
	int endIndex         ( );
	double *startNormal  ( );
	double *endNormal	 ( );
	
	int hardEdge     ( );
	void hardenEdge      ( );
	
	void setNextEdge     ( AmEdge * );
	AmEdge *nextEdge     ( );

	void printEdge       ( int counter );
private:

	int      fEdgeId;      // index to the edge
	int      fStartIndex;  // index of the start vertex
	int      fEndIndex;    // index of the end vertex
	double	 fStartNormal[3];
	double   fEndNormal[3];
	bool	 fHardEdge;
	AmEdge   *fNextEdge;   // next edge in the edge list
};

#endif /* _AmEdge */