/// <summary>
    /// 利用梁的基本信息绘制梁
    /// </summary>
    /// <param name="dir"></param>
    private void ResetBeamView(bool dir)
    {
        _meshStructStatic = MeshUtility.CreateBeamMesh(beamInfo);
        _meshStruct       = new MeshStruct(_meshStructStatic);

        _gridmeshStructStatic = MeshUtility.CreateBeamMesh(gridBeamInfo);
        _gridmeshStruct       = new MeshStruct(_gridmeshStructStatic);

        SetMeshStructToMesh();
    }