---

VertexJoin.h

Go to the documentation of this file.

/*
    File:       VertexJoin.h
    
    Function:   Join up disconnected mesh.
    
    Author:     Andrew Willmott 

    Usage:      Call Init() with the bounds of the scene, and current number
                of vertices. Then call AddVertex() to get new ids for each
                vertex in turn. When finished call GetFinalVertexList() to
                retrieve the new list of vertices.
*/

#ifndef __VertexJoin__
#define __VertexJoin__

#include "gcl/Geometry.h"

class VertexJoin
{
public:
    VertexJoin() : vertices(0), grid(0) {};
    
    Void        Init(const Point &min, const Point &max, Int numVertices);

    Int         AddVertex(const Point &where, Int id = 0);
                // add the vertex: returns the index this vertex will have in 
                // the final vertex list. If id is specified, vertices with
                // different ids will not be merged.
    
    PointList   *GetFinalVertexList();  

protected:
    Bool        MatchVertex(const Point &a, const Point &b);
                // are these the same point in space?

    Int         *grid;      // spatial grid storage
    Point       min, max;
    Int         cells[3];   // grid dimensions
    PointList   *vertices;  // list of new vertices
    IndexList   nextList;   // for list of points
    IndexList   idList;     // list of vertex ids
                            // (vertices with different IDs won't be merged)
};

#endif

---