/// <summary>
        /// 获取上翼板是向两边弯曲时的零件标记;
        /// </summary>
        /// <returns></returns>
        public CMrMark GetPartMarkMiddle()
        {
            CMrPart topBeam         = CMrBeamDoorManager.GetInstance().mTopBeam;
            CMrPart leftBeam        = CMrBeamDoorManager.GetInstance().mLeftBeam;
            CMrPart rightBeam       = CMrBeamDoorManager.GetInstance().mRightBeam;
            CMrPart leftBottomBeam  = CMrBeamDoorManager.GetInstance().mLeftBottomBeam;
            CMrPart rightBottomBeam = CMrBeamDoorManager.GetInstance().mRightBottomBeam;

            Vector leftTopVector        = CMrBeamDoorManager.GetInstance().mLeftTopVector;
            Vector rightTopVector       = CMrBeamDoorManager.GetInstance().mRightTopVector;
            Point  midMaxPoint          = CMrBeamDoorManager.GetInstance().mMidMaxPoint;
            Vector leftDirectionVector  = new Vector(midMaxPoint.X - topBeam.mLeftTopPoint.X, midMaxPoint.Y - topBeam.mLeftTopPoint.Y, 0);
            Vector rightDirectionVector = new Vector(midMaxPoint.X - topBeam.mRightTopPoint.X, midMaxPoint.Y - topBeam.mRightTopPoint.Y, 0);

            Point  minY   = mMrPart.GetMinYPoint();
            Point  maxY   = mMrPart.GetMaxYPoint();
            Vector normal = mMrPart.mNormal;

            CMrMark mrMark   = new CMrMark();
            double  dblAngle = CCommonPara.mPartMarkAngle;

            mrMark.mModelObject = mMrPart.mPartInDrawing;

            if (mMrPart == leftBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 1.8 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.8 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            else if (mMrPart == rightBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 1.8 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.8 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            else if (mMrPart == leftBottomBeam || mMrPart == rightBottomBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 1.8 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.8 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            else if (mMrPart == topBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 0.5 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 0.5 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            //如果向量与Z轴平行;
            if (CDimTools.GetInstance().IsTwoVectorParallel(normal, new Vector(0, 0, 1)))
            {
                //如果是在上翼板的左上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, topBeam.mLeftTopPoint, midMaxPoint) > 0)
                {
                    //如果是靠左侧挡板的那块板;
                    if (CDimTools.GetInstance().CompareTwoDoubleValue(mMrPart.GetMaxYPoint().X, leftBeam.mRightTopPoint.X) == 0)
                    {
                        double x           = mMrPart.GetMinXPoint().X + 20;
                        double y           = mMrPart.GetMinYPoint().Y + 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    else
                    {
                        if (mMrPart.mLeftTopPoint.X < midMaxPoint.X)
                        {
                            double x           = mMrPart.GetMaxXPoint().X - 20;
                            double y           = mMrPart.GetMinYPoint().Y + 20;
                            Point  insertPoint = new Point(x, y, 0);
                            mrMark.mInsertPoint = insertPoint;
                            double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                            mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                            mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 0.8 * CCommonPara.mPartMarkLength;
                            return(mrMark);
                        }
                    }
                }
                //如果在上翼板的右侧上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, midMaxPoint, topBeam.mRightTopPoint) > 0)
                {
                    //如果是靠右侧挡板的那块板;
                    if (CDimTools.GetInstance().CompareTwoDoubleValue(mMrPart.GetMaxYPoint().X, leftBeam.mRightTopPoint.X) == 0)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMinYPoint().Y + 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    else
                    {
                        if (mMrPart.mLeftTopPoint.X > midMaxPoint.X)
                        {
                            double x           = mMrPart.GetMinXPoint().X + 20;
                            double y           = mMrPart.GetMinYPoint().Y + 20;
                            Point  insertPoint = new Point(x, y, 0);
                            mrMark.mInsertPoint = insertPoint;
                            double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                            mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                            mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 0.8 * CCommonPara.mPartMarkLength;
                            return(mrMark);
                        }
                    }
                }
                //如果是在下翼板的下方;
                if (CDimTools.GetInstance().IsThePointOnLine(minY, leftBeam.mLeftTopPoint, leftBeam.mRightTopPoint) < 0)
                {
                    if (CDimTools.GetInstance().CompareTwoDoubleValue(mMrPart.GetMinYPoint().X, leftBeam.mRightBottomPoint.X) == 0)
                    {
                        double x           = mMrPart.GetMinXPoint().X + 20;
                        double y           = mMrPart.GetMaxYPoint().Y - 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.4 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.4 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    if (CDimTools.GetInstance().CompareTwoDoubleValue(mMrPart.GetMinYPoint().X, rightBeam.mLeftBottomPoint.X) == 0)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMaxYPoint().Y - 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.4 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.4 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
            }
            //如果法向与X轴平行;
            else if (CDimTools.GetInstance().IsTwoVectorParallel(normal, new Vector(1, 0, 0)))
            {
                if (mMrPart.mLeftBottomPoint.X < midMaxPoint.X)
                {
                    mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                    double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                    mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                    mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                    return(mrMark);
                }
                else if (mMrPart.mLeftBottomPoint.X > midMaxPoint.X)
                {
                    mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                    double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                    mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                    mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                    return(mrMark);
                }
            }
            //如果法向与Y轴平行;
            else if (CDimTools.GetInstance().IsTwoVectorParallel(normal, new Vector(0, 1, 0)))
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            //如果法向量与上翼板左侧的法向垂直;
            else if (CDimTools.GetInstance().IsTwoVectorParallel(normal, leftDirectionVector) ||
                     CDimTools.GetInstance().IsTwoVectorParallel(normal, rightDirectionVector))
            {
                //如果在上翼板左侧上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, topBeam.mLeftTopPoint, midMaxPoint) > 0)
                {
                    if (mMrPart.mLeftTopPoint.X < midMaxPoint.X)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightTopPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
                //如果在下翼板左侧上方;
                else if (CDimTools.GetInstance().IsThePointOnLine(maxY, leftBottomBeam.mLeftTopPoint, leftBottomBeam.mRightTopPoint) > 0)
                {
                    if (mMrPart.mLeftTopPoint.X < midMaxPoint.X)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                        double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
                //如果在上翼板右侧上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, topBeam.mRightTopPoint, midMaxPoint) > 0)
                {
                    if (mMrPart.mLeftTopPoint.X > midMaxPoint.X)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightTopPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
                //如果在下翼板右侧上方;
                else if (CDimTools.GetInstance().IsThePointOnLine(maxY, rightBottomBeam.mLeftTopPoint, rightBottomBeam.mRightTopPoint) > 0)
                {
                    if (mMrPart.mLeftTopPoint.X > midMaxPoint.X)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                        double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
            }
            //如果法向与左右向上的法向平行并且有螺钉;
            else if ((CDimTools.GetInstance().IsTwoVectorVertical(normal, leftDirectionVector) ||
                      CDimTools.GetInstance().IsTwoVectorVertical(normal, rightDirectionVector)) && mMrPart.IsHaveBolt())
            {
                mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            return(null);
        }
        /// <summary>
        /// 获取上翼板左斜或者右斜时的零件标记;
        /// </summary>
        /// <returns></returns>
        public CMrMark GetPartMarkNormal()
        {
            CMrPart topBeam    = CMrBeamDoorManager.GetInstance().mTopBeam;
            CMrPart bottomBeam = CMrBeamDoorManager.GetInstance().mBottonBeam;
            CMrPart leftBeam   = CMrBeamDoorManager.GetInstance().mLeftBeam;
            CMrPart rightBeam  = CMrBeamDoorManager.GetInstance().mRightBeam;

            Point  minY   = mMrPart.GetMinYPoint();
            Point  maxY   = mMrPart.GetMaxYPoint();
            Vector normal = mMrPart.mNormal;

            CMrMark mrMark   = new CMrMark();
            double  dblAngle = CCommonPara.mPartMarkAngle;

            mrMark.mModelObject = mMrPart.mPartInDrawing;

            if (mMrPart == leftBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 1.8 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.8 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            if (mMrPart == rightBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = 1.8 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.8 * CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            if (mMrPart == topBeam || mMrPart == bottomBeam)
            {
                mrMark.mInsertPoint = mMrPart.mMidPoint;
                double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            //如果向量与Z轴平行;
            if (CDimTools.GetInstance().IsTwoVectorParallel(normal, new Vector(0, 0, 1)))
            {
                //如果是在上翼板的上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, topBeam.mLeftTopPoint, topBeam.mRightTopPoint) > 0)
                {
                    //1.如果是靠右侧挡板的那块板;
                    if (Math.Abs(mMrPart.GetMaxYPoint().X - rightBeam.mLeftTopPoint.X) < 5)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMinYPoint().Y + 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    //2.如果是靠左侧挡板的那块板;
                    if (Math.Abs(mMrPart.GetMaxYPoint().X - leftBeam.mRightTopPoint.X) < 5)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMinYPoint().Y + 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    else
                    {
                        MrSlopeType mrSlopeType = CDimTools.GetInstance().JudgeLineSlope(new Point(0, 0, 0), topBeam.mNormal);

                        if (mrSlopeType == MrSlopeType.MORETHAN_ZERO)
                        {
                            double x           = mMrPart.GetMinXPoint().X + 20;
                            double y           = mMrPart.GetMinYPoint().Y + 20;
                            Point  insertPoint = new Point(x, y, 0);
                            mrMark.mInsertPoint = insertPoint;
                            double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                            mrMark.mTextPoint.X = mrMark.mInsertPoint.X + 1.1 * increaseXDistance;
                            mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 0.8 * CCommonPara.mPartMarkLength;
                            return(mrMark);
                        }
                        else if (mrSlopeType == MrSlopeType.LESSTHAN_ZERO)
                        {
                            double x           = mMrPart.GetMinXPoint().X + 20;
                            double y           = mMrPart.GetMinYPoint().Y + 20;
                            Point  insertPoint = new Point(x, y, 0);
                            mrMark.mInsertPoint = insertPoint;
                            double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                            mrMark.mTextPoint.X = mrMark.mInsertPoint.X - 1.1 * increaseXDistance;
                            mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 0.8 * CCommonPara.mPartMarkLength;
                            return(mrMark);
                        }
                    }
                }
                //如果在下翼板下方;
                if (CDimTools.GetInstance().IsThePointOnLine(minY, bottomBeam.mLeftBottomPoint, bottomBeam.mRightBottomPoint) < 0)
                {
                    //1.如果是靠右侧挡板的那块板;
                    if (Math.Abs(mMrPart.GetMinYPoint().X - rightBeam.mLeftBottomPoint.X) < 5)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMaxYPoint().Y - 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    //2.如果是靠左侧挡板的那块板;
                    else if (Math.Abs(mMrPart.GetMinYPoint().X - leftBeam.mRightBottomPoint.X) < 5)
                    {
                        double x           = mMrPart.GetMaxXPoint().X - 20;
                        double y           = mMrPart.GetMaxYPoint().Y - 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    else
                    {
                        double x           = mMrPart.GetMinXPoint().X + 20;
                        double y           = mMrPart.GetMaxYPoint().Y - 20;
                        Point  insertPoint = new Point(x, y, 0);
                        mrMark.mInsertPoint = insertPoint;
                        double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + 1.1 * increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 0.8 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
            }
            else if (CDimTools.GetInstance().IsTwoVectorParallel(normal, new Vector(1, 0, 0)))
            {
                mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            //如果法向量与上翼板的法向垂直;
            else if (CDimTools.GetInstance().IsTwoVectorVertical(normal, topBeam.mNormal))
            {
                //如果在上翼板的上方;
                if (CDimTools.GetInstance().IsThePointOnLine(maxY, topBeam.mLeftTopPoint, topBeam.mRightTopPoint) > 0)
                {
                    MrSlopeType mrSlopeType = CDimTools.GetInstance().JudgeLineSlope(new Point(0, 0, 0), topBeam.mNormal);

                    if (mrSlopeType == MrSlopeType.MORETHAN_ZERO)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightTopPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                    else if (mrSlopeType == MrSlopeType.LESSTHAN_ZERO)
                    {
                        mrMark.mInsertPoint = mMrPart.mRightTopPoint;
                        double increaseXDistance = 1.2 * CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                        mrMark.mTextPoint.X = mrMark.mInsertPoint.X - increaseXDistance;
                        mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y + 1.2 * CCommonPara.mPartMarkLength;
                        return(mrMark);
                    }
                }
                else if (CDimTools.GetInstance().IsThePointOnLine(maxY, bottomBeam.mLeftTopPoint, bottomBeam.mRightTopPoint) > 0)
                {
                    mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                    double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                    mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                    mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - 1.2 * CCommonPara.mPartMarkLength;
                    return(mrMark);
                }
            }
            else if (CDimTools.GetInstance().IsTwoVectorParallel(normal, topBeam.mNormal) && mMrPart.IsHaveBolt())
            {
                mrMark.mInsertPoint = mMrPart.mRightBottomPoint;
                double increaseXDistance = CCommonPara.mPartMarkLength / Math.Tan(dblAngle);
                mrMark.mTextPoint.X = mrMark.mInsertPoint.X + increaseXDistance;
                mrMark.mTextPoint.Y = mrMark.mInsertPoint.Y - CCommonPara.mPartMarkLength;
                return(mrMark);
            }
            return(null);
        }