protected override BaseMeshPoint CreateSubKeyPoint(BaseMeshPoint previous, Vector3 currentPoint, float widthRatio = 1)
{
Quad3DPoint point = new Quad3DPoint(currentPoint);
Vector3 opDir = Vector3.Cross((previous as Quad3DPoint).CenterLeftDirNor, (currentPoint - previous.Point_Center)); //垂直于面Previous 和current的向量
Vector3 currentDir = Vector3.Cross(opDir, (previous.Point_Center - currentPoint)).normalized; //当前点的方向线
point.CenterDownUptDirNor = opDir.normalized;
point.CenterLeftDirNor = currentDir;
return(point);
}
public override void AddPoint(Vector3 point)
{
//base.AddPoint(point);
if (m_AllSubKeyPathpoints.Count == 0)
{
Quad3DPoint _firstPoint = CreateFirstMeshPoint(point) as Quad3DPoint;
m_AllSubKeyPathpoints.Add(_firstPoint);
m_AllSubTrangles.Clear();
m_AllSubMeshPoints.Clear();
return;
}
Quad3DPoint previousQuaPoint = m_AllSubKeyPathpoints[m_AllSubKeyPathpoints.Count - 1] as Quad3DPoint; //上一个Key路径点
Vector3 direction = point - previousQuaPoint.Point_Center; //两个Key路径点的向量
if (m_AllSubKeyPathpoints.Count == 1)
{ //处理第一个Key点
//Debug.Log("Deal With The First Point");
previousQuaPoint.CenterDownUptDirNor = Vector3.Cross(new Vector3(-1, 0, 0), direction).normalized;
previousQuaPoint.CenterLeftDirNor = Vector3.Cross(direction, previousQuaPoint.CenterDownUptDirNor).normalized;
m_AllSubMeshPoints.Add(previousQuaPoint.GetQuadUpRight()); //Up Right
m_AllSubMeshPoints.Add(previousQuaPoint.GetQuadUpLeft()); //Up left
m_AllSubMeshPoints.Add(previousQuaPoint.GetQuadDownRight()); //Down Right
m_AllSubMeshPoints.Add(previousQuaPoint.GetQuadDownLeft()); //Down Left
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 3); //下三角
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 3); //
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 4); //上三角
}
List <Quad3DPoint> subQuadPoint = new List <Quad3DPoint>(); // 子节点Point
if (m_AllSubKeyPathpoints.Count >= 2)
{
Vector3 KeyPathDir1 = m_AllSubKeyPathpoints[m_AllSubKeyPathpoints.Count - 1].Point_Center - m_AllSubKeyPathpoints[m_AllSubKeyPathpoints.Count - 2].Point_Center; //上两个KeyPath Point 方向
Vector3 KeyPathDir2 = point - m_AllSubKeyPathpoints[m_AllSubKeyPathpoints.Count - 1].Point_Center; //上一个KeyPath 点到当前KeyPath Point 的方向
float angle = Vector3.Angle(KeyPathDir1, KeyPathDir2);
Debug.Log("angle=" + angle);
//if (angle >= 89.5f)
//{ //需要绘制一个三角锥 而不是长方体
// if (point.y < AllKeyPathpoints[AllKeyPathpoints.Count - 1].Point_Center.y)
// { //在下面
// }
// else
// {
// }
// return;
//}//if
}//if
//获得左右两个面曲线的控制点
Vector3 controllPointLeftRight = VectorExpand.GetPointPerpendicularTo(previousQuaPoint.GetQuadUpLeft() - new Vector3(0, previousQuaPoint.LineHeight / 2f, 0), previousQuaPoint.Point_Center, point); //获得垂直于上一个QuadPoint 点且在direction 平面的单位控制点
for (int dex = 0; dex < previousQuaPoint.SubsectionCount; dex++)
{
Vector3 _subPoint = Curve.CalculateBezier(previousQuaPoint.Point_Center, point, controllPointLeftRight, (dex + 1) * 1f / (previousQuaPoint.SubsectionCount)); //根据二阶贝塞尔曲线获得 一个分割点
Quad3DPoint currentSubPoint;
int previousStartIndex = m_AllSubMeshPoints.Count - 4;
if (dex == 0)
{
currentSubPoint = CreateSubKeyPoint(previousQuaPoint, _subPoint) as Quad3DPoint;
}
else
{
currentSubPoint = CreateSubKeyPoint(subQuadPoint[subQuadPoint.Count - 1], _subPoint) as Quad3DPoint;
}
subQuadPoint.Add(currentSubPoint);
#region Up Plane
m_AllSubTrangles.Add(previousStartIndex);
m_AllSubTrangles.Add(previousStartIndex + 1);
m_AllSubMeshPoints.Add(currentSubPoint.GetQuadUpRight());
m_AllSubMeshPoints.Add(currentSubPoint.GetQuadUpLeft());
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1); //上面 左三角
m_AllSubTrangles.Add(previousStartIndex);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1); //上面 右三角
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
#endregion
#region Down Plane
m_AllSubMeshPoints.Add(currentSubPoint.GetQuadDownRight());
m_AllSubMeshPoints.Add(currentSubPoint.GetQuadDownLeft());
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(previousStartIndex + 2); //下面 右倒三角以显示
m_AllSubTrangles.Add(previousStartIndex + 2);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(previousStartIndex + 3);; //下面左倒三角以显示
#endregion
#region LeftPlane
m_AllSubTrangles.Add(previousStartIndex + 1);
m_AllSubTrangles.Add(previousStartIndex + 3);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1); //左侧 到下三角
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 3);
m_AllSubTrangles.Add(previousStartIndex + 1); //左侧倒上三角
#endregion
#region Right Plane
m_AllSubTrangles.Add(previousStartIndex);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 4);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(previousStartIndex);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(previousStartIndex + 2);
#endregion
#region Forward Plane
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 2);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 4); //前倒 下三角
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 1);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 4);
m_AllSubTrangles.Add(m_AllSubMeshPoints.Count - 3); //前倒 上三角
#endregion
if (dex == previousQuaPoint.SubsectionCount - 1)
{
m_AllSubKeyPathpoints.Add(currentSubPoint);
//Debug.Log("Add Key Path " + dex);
}
}
}
