ISTriStrip.H

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#ifndef TRISTRIP_H
#define TRISTRIP_H


// Gluebase includes
#define OUTSIDE_GLUE_CORE
#include <std/hash.H>

#include "ISVertex.H"

namespace InSpace {

class ISMesh;


class TriStrip
{
 public:
  TriStrip(ISMesh *m) {
    _mesh = m;
  }
  
  virtual ~TriStrip() {}

  void addVertex(ISVertex *v) {
    _verts += v;
  }

  ISVertex* lastVert() {
    if (_verts.num() >= 1)
      return _verts[_verts.num()-1];
    return NULL;
  }

  ISVertex* lastLastVert() {
    if (_verts.num() >= 2)
      return _verts[_verts.num()-2];
    return NULL;
  }
  
  int numVerts() { return _verts.num(); }

  ISVertex* vertex(int n) {
    if ((n>=0) && (n < _verts.num()))
      return _verts[n];
    else {
      cerr << "TriStrip Error: vertex index out of range." << endl;
      return NULL;
    }
  }

 protected:  
  ISMesh *_mesh;

  ARRAY<ISVertex*> _verts;
};

}
#endif

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