class QGrid3d : public QBBox3d

{

public:

	//publid Datas

	long int GridID; 

	QVector<int> includeGroupID; 

	QVector<int> includeFaceID; 

	bool includeFaces; 

	QVertex3d center; 

};



//下面是第一次用到,沒問題

void QScene::InitGrids()

{

	CalStepNum();

	QGrid3d curGrid;

	int i,j,k,currentID;

	int steps = pow(2.0,stepNum);

	QVertex3d orginalPoint = sceneBox.pMin;

	

	float xDirStep = (sceneBox.pMax.x - sceneBox.pMin.x)/(float)steps;

	float yDirStep = (sceneBox.pMax.y - sceneBox.pMin.y)/(float)steps;

	float zDirStep = (sceneBox.pMax.z - sceneBox.pMin.z)/(float)steps;



	QVertex3d orginalCenterpoint = QVertex3d(orginalPoint.x+xDirStep/2.0, orginalPoint.y+yDirStep/2.0, orginalPoint.z+zDirStep/2.0);

	

	for (i=0; i<steps; i++)

		for(j=0; j<steps; j++)

			for (k=0; k<steps; k++)

			{

				currentID = i*steps*steps + j*steps +k;

				curGrid.GridID = currentID;

				curGrid.includeFaces = false;

				curGrid.center = QVertex3d(orginalCenterpoint.x+xDirStep*i,

					                       orginalCenterpoint.y+yDirStep*j,

										   orginalCenterpoint.z+zDirStep*k);

			}

}



//下面是對它進行了修改,就出現了題目中的錯誤

void QScene::PutFacesintoGrid()

{

	QGroup3d curGroup;

	QFace3d curFace;

	long int gridID;

	CalDivValues(sceneBox.pMin.x, sceneBox.pMax.x, stepNum, xdivValue);

	CalDivValues(sceneBox.pMin.y, sceneBox.pMax.y, stepNum, ydivValue);

	CalDivValues(sceneBox.pMin.z, sceneBox.pMax.z, stepNum, zdivValue);

	for (int i=0; i<numgroups; i++)

	{

		curGroup = groups.at(i);

		for (int j =0; j<curGroup.numfaces; j++)

		{

			curFace = curGroup.m_ArrayFace[j];

			CalGridID(curFace.faceCenter, gridID);

			grids.at(gridID).includeGroupID.append(i);

			grids.at(gridID).includeFaceID.append(j);

			grids.at(gridID).includeFaces = true;

		}

	}

}