/// <summary>
/// 确定投影点p是否在三角形的投影中（xz平面的投影）
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public override bool CheckProjectionInArea(Vector3 p)
{
return(AABB.CheckProjectionPointinTriangle(this.P1, this.P2, this.P3, p));
}
/// <summary>
/// 确定投影点p是否在三角形的投影中（xz平面的投影）
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public override bool CheckProjectionInArea(Vector2 p)
{
return(AABB.CheckProjectionPointinTriangle(this.P1, this.P2, this.P3, new Vector3(p.x, 0, p.y)));
}