using PaintDotNet.Annotation.Enum;
using PaintDotNet.Base.SettingModel;
using PaintDotNet.Base.CommTool;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Measure
{
    using PointList = List<PointF>;
    /// <summary>
    /// 测量->圆->圆心到圆心距离
    /// </summary>
    public class MeasureCenterCenterSize : MeasureDrawObject
    {
        /// <summary>
        /// 点集合
        /// </summary>
        public PointList pointArray;
        /// <summary>
        /// 样式
        /// </summary>
        private MeasureStyleModel.MeasureCenterCenterSize measureCenterCenterSize ;
        /// <summary>
        /// 圆心横坐标
        /// </summary>
        double x0;
        /// <summary>
        /// 圆心纵坐标
        /// </summary>
        double y0;
        /// <summary>
        /// 第二个圆圆心横坐标
        /// </summary>
        double x01;
        /// <summary>
        /// 第二个圆圆心纵坐标
        /// </summary>
        double y01;
        /// <summary>
        /// 直径
        /// </summary>
        double radius = 0;
        /// <summary>
        /// 圆的旋转角度
        /// </summary>
        double angle = 0;
        double jangle = 0;
        /// <summary>
        /// 辅助为箭头及文字原点赋初始值
        /// </summary>
        public bool arrowPosition = true;
        public bool isPress = false;
        private GraphicsPath areaPath = null;
        private Pen areaPen = null;
        private Region areaRegion = null;
        /// <summary>
        /// 测量信息矩形定义
        /// </summary>
        private RectangleF rectangleF1 = new RectangleF();
        private RectangleF rectangleF2 = new RectangleF();
        private RectangleF rectangleF3 = new RectangleF();
        private RectangleF rectangleF4 = new RectangleF();
        private RectangleF rectangleF5 = new RectangleF();
        private RectangleF rectangleF6 = new RectangleF();
        private RectangleF rectangleF7 = new RectangleF();
        private RectangleF rectangleF8 = new RectangleF();
        private RectangleF rectangleF9 = new RectangleF();
        private RectangleF rectangleF10 = new RectangleF();
        private RectangleF rectangleF11 = new RectangleF();
        private RectangleF rectangleF12 = new RectangleF();
        private RectangleF rectangleF13 = new RectangleF();
        private RectangleF rectangleF14 = new RectangleF();
        private RectangleF rectangleF15 = new RectangleF();
        private RectangleF rectangleF16 = new RectangleF();
        private RectangleF rectangleF17 = new RectangleF();
        /// <summary>
        /// 文本上用于拖动的点
        /// </summary>
        private Point pointL = new Point();
        /// <summary>
        /// 绘制限制(第一次绘制时)
        /// </summary>
        public bool pointChange = true;
        /// <summary>
        /// 区分移动文本
        /// </summary>
        private int moveKb;
        /// <summary>
        /// 绘制限制(从配置文件加载)
        /// </summary>
        public bool configurationFile = false;
        /// <summary>
        /// 绘制限制(更改属性时)
        /// </summary>
        private bool SavePointChange;
        /// <summary>
        /// 绘制属性
        /// </summary>
        private string[] drawingPropertiesList;
        /// <summary>
        /// 绘制属性(克隆)
        /// </summary>
        private string[] drawingPropertiesListClone;
        /// <summary>
        /// 限制绘制(绘制中)
        /// </summary>
        public bool mouseUpPointChange = false;
        /// <summary>
        /// 属性绘制点
        /// </summary>
        private PointF rotationPoint;
        /// <summary>
        /// 距离
        /// </summary>
        //private double length = 0.0;
        public MeasureCenterCenterSize(ISurfaceBox surfaceBox) : base(surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasureCenterCenterSize;

            pointArray = new PointList();
            Initialize();
        }

        public MeasureCenterCenterSize(ISurfaceBox surfaceBox, int x1, int y1, bool clone) : base(surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasureCenterCenterSize;
            this.measurementUnit = (MeasurementUnit)System.Enum.Parse(typeof(MeasurementUnit), surfaceBox.GetPxPerUnit()[0]);
            this.unitString = surfaceBox.GetPxPerUnit()[1];
            this.unit = surfaceBox.GetPxPerUnit()[2];
            
            measureCenterCenterSize = this.ISurfaceBox.GetMeasureStyleModel().measureCenterCenterSize;
            pointArray = new PointList();
            if (clone)
                pointArray.Add(new Point(x1, y1));
            Initialize();
        }

        public MeasureCenterCenterSize(ISurfaceBox surfaceBox, List<PointF> points, ParentStyleModel parentStyleModel, Object content) : base()
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasureCenterCenterSize;
            this.ISurfaceBox = surfaceBox;
            measureCenterCenterSize = (MeasureStyleModel.MeasureCenterCenterSize)parentStyleModel;
            pointArray = DrawRulerHelper.DeepCopyListByReflect(points);
            startPoint = points[0];
            this.measurementUnit = (MeasurementUnit)System.Enum.Parse(typeof(MeasurementUnit), surfaceBox.GetPxPerUnit()[0]);
            this.unitString = surfaceBox.GetPxPerUnit()[1];
            this.unit = surfaceBox.GetPxPerUnit()[2];
            
            this.configurationFile = true;
        }

        /// <summary>
        /// Clone this instance
        /// </summary>
        public override DrawObject Clone()
        {
            MeasureCenterCenterSize drawRectangle = new MeasureCenterCenterSize(ISurfaceBox, (int)pointArray[0].X, (int)pointArray[0].Y, false);
            drawRectangle.objectType = DrawClass.Measure;
            drawRectangle.drawToolType = DrawToolType.MeasureCenterCenterSize;
            drawRectangle.ISurfaceBox = ISurfaceBox;
            foreach (PointF p in this.pointArray)
            {
                drawRectangle.pointArray.Add(p);
            }
            if (drawingPropertiesList != null)
                drawRectangle.drawingPropertiesListClone = drawingPropertiesList;
            FillDrawObjectFields(drawRectangle);
            return drawRectangle;
        }

        public override DrawObject Clone(ISurfaceBox surfaceBox)
        {
            MeasureCenterCenterSize drawRectangle = new MeasureCenterCenterSize(surfaceBox, this.GetPoints(), this.measureCenterCenterSize, null);
            if (drawingPropertiesList != null)
                drawRectangle.drawingPropertiesListClone = drawingPropertiesList;
            FillDrawObjectFields(drawRectangle);
            return drawRectangle;
        }

        /// <summary>
        /// 测量属性
        /// </summary>
        /// <returns></returns>
        public override Dictionary<System.Enum, object> GetData()
        {
            if (data.ContainsKey(MeasureAttributes.MeasureMethod))
                data[MeasureAttributes.MeasureMethod] = PdnResources.GetString("Menu.MeasureAction.RegistrationMeasurement.Text");
            else
                data.Add(MeasureAttributes.MeasureMethod, PdnResources.GetString("Menu.MeasureAction.RegistrationMeasurement.Text"));

            if (data.ContainsKey(MeasureAttributes.MeasureUnitCN))
                data[MeasureAttributes.MeasureUnitCN] = this.unitString;
            else
                data.Add(MeasureAttributes.MeasureUnitCN, this.unitString);

            if (data.ContainsKey(MeasureAttributes.MeasureUnitEN))
                data[MeasureAttributes.MeasureUnitEN] = this.unit;
            else
                data.Add(MeasureAttributes.MeasureUnitEN, this.unit);

            if (data.ContainsKey(MeasureAttributes.PixelDistance))
                data[MeasureAttributes.PixelDistance] = Math.Round(this.length, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelDistance, Math.Round(this.length, decimalPlaces));

            string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalDistance))
                data[MeasureAttributes.PhysicalDistance] = s;
            else
                data.Add(MeasureAttributes.PhysicalDistance, s);


            if (data.ContainsKey(MeasureAttributes.PixelArea))
                data[MeasureAttributes.PixelArea] = Math.Round(Math.PI * radius / 2 * radius / 2, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelArea, Math.Round(Math.PI * radius / 2 * radius / 2, decimalPlaces));

            s = Math.Round(Math.PI * radius / 2 * radius / 2 * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int a = s.Length - s.IndexOf(".") - 1;
                if (a < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - a; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalArea))
                data[MeasureAttributes.PhysicalArea] = s;
            else
                data.Add(MeasureAttributes.PhysicalArea, s);

            if (data.ContainsKey(MeasureAttributes.PixelCircumference))
                data[MeasureAttributes.PixelCircumference] = Math.Round(Math.PI * radius, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCircumference, Math.Round(Math.PI * radius, decimalPlaces));

            s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int a = s.Length - s.IndexOf(".") - 1;
                if (a < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - a; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalCircumference))
                data[MeasureAttributes.PhysicalCircumference] = s;
            else
                data.Add(MeasureAttributes.PhysicalCircumference, s);

            if (data.ContainsKey(MeasureAttributes.PixelCenterX))
                data[MeasureAttributes.PixelCenterX] = Math.Round(this.x0, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCenterX, Math.Round(this.x0, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PixelCenterY))
                data[MeasureAttributes.PixelCenterY] = Math.Round(this.y0, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCenterY, Math.Round(this.y0, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PhysicalCenterX))
                data[MeasureAttributes.PhysicalCenterX] = Math.Round(this.x0 * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalCenterX, Math.Round(this.x0 * unitLength, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PhysicalCenterY))
                data[MeasureAttributes.PhysicalCenterY] = Math.Round(this.y0 * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalCenterY, Math.Round(this.y0 * unitLength, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PixelRadius))
                data[MeasureAttributes.PixelRadius] = Math.Round(radius / 2, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelRadius, Math.Round(radius / 2, decimalPlaces));

            s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalRadius))
                data[MeasureAttributes.PhysicalRadius] = s;
            else
                data.Add(MeasureAttributes.PhysicalRadius, s);

            if (data.ContainsKey(MeasureAttributes.PixelDiameter))
                data[MeasureAttributes.PixelDiameter] = Math.Round(radius, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelDiameter, Math.Round(radius, decimalPlaces));

            s = Math.Round(radius * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int a = s.Length - s.IndexOf(".") - 1;
                if (a < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - a; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalDiameter))
                data[MeasureAttributes.PhysicalDiameter] = s;
            else
                data.Add(MeasureAttributes.PhysicalDiameter, s);

            return data;
        }

        public override void Draw(Graphics g)
        {
            string frontStr = string.Empty;

            if (this.measureCenterCenterSize.showSuffix)
            {
                frontStr = this.measureCenterCenterSize.suffixName;
            }

            if (this.measureCenterCenterSize.showSerial)
            {

                #region [获取序号]

                List<DrawObject> newGraphicsList = new List<DrawObject>();

                int n = ISurfaceBox.GraphicsList.Count;

                int num = 0;

                for (int i = n - 1; i >= 0; i--)
                {
                    newGraphicsList.Add(ISurfaceBox.GraphicsList[i].Clone());
                }

                var newGraphics = newGraphicsList.Where(m => m.ID.Equals(this.ID)).FirstOrDefault();

                if (newGraphics != null)
                {
                    num = newGraphicsList.IndexOf(newGraphics) + 1;
                }

                #endregion

                frontStr = $"[{ num }]{frontStr}";
            }

            if (this.measureCenterCenterSize.showAlias)
            {

                frontStr = this.measureCenterCenterSize.aliasName + frontStr;
            }

            measureCenterCenterSize = this.ISurfaceBox.GetMeasureStyleModel().measureCenterCenterSize;
            drawingProperties.TryGetValue(this.drawToolType, out drawingPropertiesList);
            pointChangeObject.TryGetValue(this.drawToolType, out SavePointChange);
            Color color = Color.FromArgb(this.measureCenterCenterSize.lineColor);
            Pen pen = new Pen(color, PenWidth);
            int penWidth = this.measureCenterCenterSize.lineWidth;
            pen.DashStyle = (DashStyle)this.measureCenterCenterSize.lineStyle;
            pen.Width = penWidth;

            Font textfont = new Font(measureCenterCenterSize.font, measureCenterCenterSize.fontSize);
            Brush textbrush = new SolidBrush(Color.FromArgb(measureCenterCenterSize.textColor));
            Pen linePen = new Pen(Color.FromArgb(measureCenterCenterSize.lineColor), measureCenterCenterSize.lineWidth);
            linePen.DashStyle = (DashStyle)measureCenterCenterSize.lineStyle;

            if (this.Selected)
            {
                if (measureCenterCenterSize.chooseStyle != null)
                {
                    textfont = new Font(measureCenterCenterSize.chooseStyle.font, measureCenterCenterSize.chooseStyle.fontSize);
                    textbrush = new SolidBrush(Color.FromArgb(measureCenterCenterSize.chooseStyle.textColor));
                    linePen = new Pen(Color.FromArgb(measureCenterCenterSize.chooseStyle.lineColor), measureCenterCenterSize.chooseStyle.lineWidth);
                    linePen.DashStyle = (DashStyle)measureCenterCenterSize.chooseStyle.lineStyle;
                    pen = new Pen(Color.FromArgb(measureCenterCenterSize.chooseStyle.lineColor), measureCenterCenterSize.chooseStyle.lineWidth);
                    pen.DashStyle = (DashStyle)measureCenterCenterSize.chooseStyle.lineStyle;
                }
            }

            if (!this.Selected)
            {
                this.pointChange = true;
                rectangleF1 = new RectangleF();
                rectangleF2 = new RectangleF();
                rectangleF3 = new RectangleF();
                rectangleF4 = new RectangleF();
                rectangleF5 = new RectangleF();
                rectangleF6 = new RectangleF();
                rectangleF7 = new RectangleF();
                rectangleF8 = new RectangleF();
                rectangleF9 = new RectangleF();
                rectangleF10 = new RectangleF();
                rectangleF11 = new RectangleF();
                rectangleF12 = new RectangleF();
                rectangleF13 = new RectangleF();
                rectangleF14 = new RectangleF();
                rectangleF15 = new RectangleF();
                rectangleF16 = new RectangleF();
                rectangleF17 = new RectangleF();
            }

            g.SmoothingMode = SmoothingMode.AntiAlias;

            if (HandleCount - 1 == 2) {
                g.DrawLine(linePen, pointArray[0].X, pointArray[0].Y, pointArray[1].X, pointArray[1].Y);
            }
            
            if (HandleCount - 1 == 3 || HandleCount - 1 == 4)
            {
                if (drawingPropertiesList == null)
                {
                    drawingPropertiesList = drawingPropertiesListClone;
                    this.configurationFile = true;
                }
                float x1 = pointArray[0].X;
                float y1 = pointArray[0].Y;
                float x2 = pointArray[1].X;
                float y2 = pointArray[1].Y;
                float x3 = pointArray[2].X;
                float y3 = pointArray[2].Y;

                double a = x1 - x2;
                double b = y1 - y2;
                double c = x1 - x3;
                double d = y1 - y3;
                double e = ((x1 * x1 - x2 * x2) + (y1 * y1 - y2 * y2)) / 2.0;
                double f = ((x1 * x1 - x3 * x3) + (y1 * y1 - y3 * y3)) / 2.0;

                 x0 = x1;
                 y0 = y1;

                double det = b * c - a * d;

                if (Math.Abs(det) > 0.001)
                {
                    //x0,y0为计算得到的原点
                    x0 = -(d * e - b * f) / det;
                    y0 = -(a * f - c * e) / det;

                    radius = Math.Round(Math.Sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) * 2, 10);
                }
                
                linePen.StartCap = LineCap.ArrowAnchor;
                linePen.EndCap = LineCap.Round;

                rectangle.X = (float)(x0 - radius / 2);
                rectangle.Y = (float)(y0 - radius / 2);
                rectangle.Width = (float)radius;
                rectangle.Height = (float)radius;

                string circleMessage = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces) + unit + "²\r\n" 
                    + Math.Round(radius / 2 * unitLength, decimalPlaces) + unit + "\r\n" + Math.Round(radius * unitLength, decimalPlaces) + unit + "\r\n";//圆的信息字符串
                SizeF sizeF = g.MeasureString(circleMessage, textfont);//获取字符串对应的矩形尺寸
                RectangleF recMessage = new RectangleF();
                recMessage.Width = sizeF.Width;
                recMessage.Height = sizeF.Height;

                if (jangle == 0)
                {
                    g.DrawEllipse(pen, rectangle);
                }
                else
                {  
                    Matrix mtxSave = g.Transform;
                    Matrix matrix = g.Transform;

                    matrix.RotateAt((float)jangle, new PointF(float.Parse(x0.ToString()), float.Parse(y0.ToString())));

                    g.Transform = matrix;

                    g.DrawEllipse(pen, rectangle);     

                    g.Transform = mtxSave;
                    matrix.Dispose();

                }
                if(HandleCount - 1 == 4)
                    g.DrawLine(pen, new PointF((float)x0, (float)y0), pointArray[3]);
            }

            if (HandleCount - 1 == 5)
            {
                if (drawingPropertiesList == null)
                {
                    drawingPropertiesList = drawingPropertiesListClone;
                    this.configurationFile = true;
                }
                float x1 = pointArray[0].X;
                float y1 = pointArray[0].Y;
                float x2 = pointArray[1].X;
                float y2 = pointArray[1].Y;
                float x3 = pointArray[2].X;
                float y3 = pointArray[2].Y;

                double a = x1 - x2;
                double b = y1 - y2;
                double c = x1 - x3;
                double d = y1 - y3;
                double e = ((x1 * x1 - x2 * x2) + (y1 * y1 - y2 * y2)) / 2.0;
                double f = ((x1 * x1 - x3 * x3) + (y1 * y1 - y3 * y3)) / 2.0;

                x0 = x1;
                y0 = y1;

                double det = b * c - a * d;

                if (Math.Abs(det) > 0.001)
                {
                    //x0,y0为计算得到的原点
                    x0 = -(d * e - b * f) / det;
                    y0 = -(a * f - c * e) / det;

                    radius = Math.Round(Math.Sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) * 2, 10);
                }

                linePen.StartCap = LineCap.ArrowAnchor;
                linePen.EndCap = LineCap.Round;

                rectangle.X = (float)(x0 - radius / 2);
                rectangle.Y = (float)(y0 - radius / 2);
                rectangle.Width = (float)radius;
                rectangle.Height = (float)radius;

                string circleMessage = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces) + unit + "²\r\n"
                    + Math.Round(radius / 2 * unitLength, decimalPlaces) + unit + "\r\n" + Math.Round(radius * unitLength, decimalPlaces) + unit + "\r\n";//圆的信息字符串
                SizeF sizeF = g.MeasureString(circleMessage, textfont);//获取字符串对应的矩形尺寸
                RectangleF recMessage = new RectangleF();
                recMessage.Width = sizeF.Width;
                recMessage.Height = sizeF.Height;

                if (jangle == 0)
                {
                    g.DrawEllipse(pen, rectangle);
                }
                else
                {
                    Matrix mtxSave = g.Transform;
                    Matrix matrix = g.Transform;

                    matrix.RotateAt((float)jangle, new PointF(float.Parse(x0.ToString()), float.Parse(y0.ToString())));

                    g.Transform = matrix;

                    g.DrawEllipse(pen, rectangle);

                    g.Transform = mtxSave;
                    matrix.Dispose();

                }
                g.DrawLine(pen, pointArray[3].X, pointArray[3].Y, pointArray[4].X, pointArray[4].Y);
            }
            if (HandleCount - 1 == 6)
            {
                Matrix mtxSave = g.Transform;
                Matrix matrix = g.Transform;
                for (int i = 0; i < 2; i++)
                {
                    if (drawingPropertiesList == null)
                    {
                        drawingPropertiesList = drawingPropertiesListClone;
                        this.configurationFile = true;
                    }
                    float x1;
                    float y1;
                    float x2;
                    float y2;
                    float x3;
                    float y3;
                    if (i == 0)
                    {
                        x1 = pointArray[0].X;
                        y1 = pointArray[0].Y;
                        x2 = pointArray[1].X;
                        y2 = pointArray[1].Y;
                        x3 = pointArray[2].X;
                        y3 = pointArray[2].Y;
                    }
                    else
                    {
                        x1 = pointArray[3].X;
                        y1 = pointArray[3].Y;
                        x2 = pointArray[4].X;
                        y2 = pointArray[4].Y;
                        x3 = pointArray[5].X;
                        y3 = pointArray[5].Y;
                    }

                    double a = x1 - x2;
                    double b = y1 - y2;
                    double c = x1 - x3;
                    double d = y1 - y3;
                    double e = ((x1 * x1 - x2 * x2) + (y1 * y1 - y2 * y2)) / 2.0;
                    double f = ((x1 * x1 - x3 * x3) + (y1 * y1 - y3 * y3)) / 2.0;

                    double x0 = x1;
                    double y0 = y1;
                    if (i == 0)
                    {
                        this.x0 = x1;
                        this.y0 = y1;
                    }
                    else
                    {
                        this.x01 = x1;
                        this.y01 = y1;
                    }
                    double det = b * c - a * d;

                    if (Math.Abs(det) > 0.001)
                    {
                        //x0,y0为计算得到的原点
                        if (i == 0)
                        {
                            this.x0 = -(d * e - b * f) / det;
                            this.y0 = -(a * f - c * e) / det;
                        }
                        else
                        {
                            this.x01 = -(d * e - b * f) / det;
                            this.y01 = -(a * f - c * e) / det;
                        }
                        x0 = -(d * e - b * f) / det;
                        y0 = -(a * f - c * e) / det;
                        radius = Math.Round(Math.Sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) * 2, 10);
                    }
           
                    linePen.StartCap = LineCap.ArrowAnchor;
                    linePen.EndCap = LineCap.Round;

                    rectangle.X = (float)(x0 - radius / 2);
                    rectangle.Y = (float)(y0 - radius / 2);
                    rectangle.Width = (float)radius;
                    rectangle.Height = (float)radius;

                    string circleMessage = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces) + unit + "²\r\n"
                        + Math.Round(radius / 2 * unitLength, decimalPlaces) + unit + "\r\n" + Math.Round(radius * unitLength, decimalPlaces) + unit + "\r\n";//圆的信息字符串
                    SizeF sizeF = g.MeasureString(circleMessage, textfont);//获取字符串对应的矩形尺寸
                    RectangleF recMessage = new RectangleF();
                    recMessage.Width = sizeF.Width;
                    recMessage.Height = sizeF.Height;

                    if (jangle == 0)
                    {
                        g.DrawEllipse(pen, rectangle);
                    }
                    else
                    {
                        Matrix mtxSave1 = g.Transform;
                        Matrix matrix1 = g.Transform;

                        matrix1.RotateAt((float)jangle, new PointF(float.Parse(x0.ToString()), float.Parse(y0.ToString())));

                        g.Transform = matrix1;
                       
                        g.DrawEllipse(pen, rectangle);
                        g.Transform = mtxSave1;
                        matrix1.Dispose();
                    }
                }
                SizeF sizeF1 = new SizeF();
                //计算需要旋转的角度
                angle = BasicCalculationHelper.Angle(new PointF((float)x0, (float)y0), new PointF((float)x01, (float)y01), new PointF((float)x0, (float)y01));
                length = BasicCalculationHelper.GetDistance(new Point(Convert.ToInt32(x0), Convert.ToInt32(y0)), new Point(Convert.ToInt32(x01), Convert.ToInt32(y01)), 10);
                // 求线上面三个点
                int offsetValuePoint = measureCenterCenterSize.fontSize + measureCenterCenterSize.fontSize / 2;
                int offsetValue1Point = measureCenterCenterSize.lineWidth * 2 / 3;
                int offsetPoint = offsetValue1Point;
                if (drawingPropertiesList != null)
                {
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelDistance.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDistance.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelRadius.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalRadius.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelDiameter.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDiameter.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCircumference.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCircumference.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelArea.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalArea.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterX.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterY.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterX.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterY.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                    {
                        offsetPoint += offsetValuePoint;
                    }
                }
                PointF pointF1;
                PointF pointF2;

                if (angle < 90)
                    pointF1 = BasicCalculationHelper.GetAnglePoint(new Point((int)x0+ offsetPoint + offsetValue1Point, (int)y0), new PointF((float)x0, (float)y0), angle - 90);
                else
                    pointF1 = BasicCalculationHelper.GetAnglePoint(new Point((int)x0 + offsetPoint + offsetValue1Point, (int)y0), new PointF((float)x0, (float)y0), angle + 90);
                if (angle < 90)
                    pointF2 = BasicCalculationHelper.GetAnglePoint(new Point((int)x01+ offsetPoint + offsetValue1Point, (int)y01), new PointF((float)x01, (float)y01), angle - 90);
                else
                    pointF2 = BasicCalculationHelper.GetAnglePoint(new Point((int)x01 + offsetPoint + offsetValue1Point, (int)y01), new PointF((float)x01, (float)y01), angle + 90);
                PointF pointF3 = new PointF((pointF1.X + pointF2.X) / 2, (pointF1.Y + pointF2.Y) / 2);

                if (measureCenterCenterSize.linePosition == 0)
                    this.rotationPoint = pointF1;
                else if (measureCenterCenterSize.linePosition == 1)
                    this.rotationPoint = pointF3;
                else if (measureCenterCenterSize.linePosition == 2)
                    this.rotationPoint = pointF2;
                else if (measureCenterCenterSize.linePosition == 3)
                    this.rotationPoint = new PointF((float)x0, (float)y0);
                else if (measureCenterCenterSize.linePosition == 4)
                    this.rotationPoint = new PointF(((float)x0 + (float)x01) / 2, ((float)y0 + (float)y01) / 2);
                else if (measureCenterCenterSize.linePosition == 5)
                    this.rotationPoint = new PointF((float)x01, (float)y01);
                // 画布旋转
                if (angle < 90)
                {
                    matrix.RotateAt((float)angle, new PointF(this.rotationPoint.X, this.rotationPoint.Y));
                    g.Transform = matrix;
                }
                else
                {
                    angle = BasicCalculationHelper.Angle(new PointF((float)x01, (float)y01), new PointF((float)x0, (float)y0), new PointF((float)x01, (float)y0));
                    matrix.RotateAt((float)angle, new PointF(this.rotationPoint.X, this.rotationPoint.Y));
                    g.Transform = matrix;
                }
                if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                {
                    int offsetValue = measureCenterCenterSize.fontSize + measureCenterCenterSize.fontSize / 2;
                    int offsetValue1 = measureCenterCenterSize.lineWidth * 2 / 3;
                    int offset = offsetValue1;
                    this.pointL = new Point((int)this.rotationPoint.X, (int)this.rotationPoint.Y);
                    if (drawingPropertiesList != null)
                    {
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelDistance.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(this.length, decimalPlaces) + "px", textfont);
                            rectangleF16.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDistance.ToString()))
                        {
                            string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF17.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelRadius.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(radius / 2, decimalPlaces) + "px", textfont);
                            rectangleF12.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalRadius.ToString()))
                        {
                            string s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF13.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelDiameter.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(radius, decimalPlaces) + "px", textfont);
                            rectangleF14.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDiameter.ToString()))
                        {
                            string s = Math.Round(radius * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF15.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCircumference.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont);
                            rectangleF6.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCircumference.ToString()))
                        {
                            string s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }


                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF7.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelArea.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont);
                            rectangleF4.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalArea.ToString()))
                        {
                            string s = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit + "²", textfont);
                            rectangleF5.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterX.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(this.x0, decimalPlaces), textfont);
                            rectangleF8.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterY.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(this.y0, decimalPlaces), textfont);
                            rectangleF9.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterX.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(this.x0 * unitLength, decimalPlaces), textfont);
                            rectangleF10.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterY.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + Math.Round(this.y0 * unitLength, decimalPlaces), textfont);
                            rectangleF11.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + PdnResources.GetString("Menu.MeasureAction.RegistrationMeasurement.Text"), textfont);
                            rectangleF1.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + this.unitString, textfont);
                            rectangleF2.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + this.unit, textfont);
                            rectangleF3.Location = new Point((int)this.rotationPoint.X + offsetValue1 - (int)sizeF1.Width / 2, (int)this.rotationPoint.Y + offset);
                            offset += offsetValue;
                        }
                    }
                }
                if (drawingPropertiesList != null)
                {
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + PdnResources.GetString("Menu.MeasureAction.RegistrationMeasurement.Text"), textfont);
                        rectangleF1.Width = sizeF1.Width;
                        rectangleF1.Height = sizeF1.Height;
                        g.DrawString(frontStr + PdnResources.GetString("Menu.MeasureAction.RegistrationMeasurement.Text"), textfont, textbrush, rectangleF1);
                    }
                    else
                    {
                        rectangleF1 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + this.unitString, textfont);
                        rectangleF2.Width = sizeF1.Width;
                        rectangleF2.Height = sizeF1.Height;
                        g.DrawString(frontStr + this.unitString, textfont, textbrush, rectangleF2);
                    }
                    else
                    {
                        rectangleF2 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + this.unit, textfont);
                        rectangleF3.Width = sizeF1.Width;
                        rectangleF3.Height = sizeF1.Height;
                        g.DrawString(frontStr + this.unit, textfont, textbrush, rectangleF3);
                    }
                    else
                    {
                        rectangleF3 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelArea.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont);
                        rectangleF4.Width = sizeF1.Width;
                        rectangleF4.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont, textbrush, rectangleF4);
                    }
                    else
                    {
                        rectangleF4 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalArea.ToString()))
                    {
                        string s = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces).ToString();
                        if (s.IndexOf(".") == -1)
                        {
                            for (int i = 0; i < decimalPlaces; i++)
                            {
                                if (i == 0)
                                    s += ".";
                                s += "0";
                            }
                        }
                        else
                        {
                            int dic = s.Length - s.IndexOf(".") - 1;
                            if (dic < decimalPlaces)
                            {
                                for (int i = 0; i < decimalPlaces - dic; i++)
                                {
                                    s += "0";
                                }
                            }
                        }
                        sizeF1 = g.MeasureString(frontStr + s + this.unit + "²", textfont);
                        rectangleF5.Width = sizeF1.Width;
                        rectangleF5.Height = sizeF1.Height;
                        g.DrawString(frontStr + s + this.unit + "²", textfont, textbrush, rectangleF5);
                    }
                    else
                    {
                        rectangleF5 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCircumference.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont);
                        rectangleF6.Width = sizeF1.Width;
                        rectangleF6.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont, textbrush, rectangleF6);
                    }
                    else
                    {
                        rectangleF6 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCircumference.ToString()))
                    {
                        string s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
                        if (s.IndexOf(".") == -1)
                        {
                            for (int i = 0; i < decimalPlaces; i++)
                            {
                                if (i == 0)
                                    s += ".";
                                s += "0";
                            }
                        }
                        else
                        {
                            int dic = s.Length - s.IndexOf(".") - 1;
                            if (dic < decimalPlaces)
                            {
                                for (int i = 0; i < decimalPlaces - dic; i++)
                                {
                                    s += "0";
                                }
                            }
                        }


                        sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                        rectangleF7.Width = sizeF1.Width;
                        rectangleF7.Height = sizeF1.Height;
                        g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF7);
                    }
                    else
                    {
                        rectangleF7 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterX.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(this.x0, decimalPlaces), textfont);
                        rectangleF8.Width = sizeF1.Width;
                        rectangleF8.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(this.x0, decimalPlaces), textfont, textbrush, rectangleF8);
                    }
                    else
                    {
                        rectangleF8 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterY.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(this.y0, decimalPlaces), textfont);
                        rectangleF9.Width = sizeF1.Width;
                        rectangleF9.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(this.y0, decimalPlaces), textfont, textbrush, rectangleF9);
                    }
                    else
                    {
                        rectangleF9 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterX.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(this.x0 * unitLength, decimalPlaces), textfont);
                        rectangleF10.Width = sizeF1.Width;
                        rectangleF10.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(this.x0 * unitLength, decimalPlaces), textfont, textbrush, rectangleF10);
                    }
                    else
                    {
                        rectangleF10 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterY.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(this.y0 * unitLength, decimalPlaces), textfont);
                        rectangleF11.Width = sizeF1.Width;
                        rectangleF11.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(this.y0 * unitLength, decimalPlaces), textfont, textbrush, rectangleF11);
                    }
                    else
                    {
                        rectangleF11 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelRadius.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(radius / 2, decimalPlaces) + "px", textfont);
                        rectangleF12.Width = sizeF1.Width;
                        rectangleF12.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(radius / 2, decimalPlaces) + "px", textfont, textbrush, rectangleF12);
                    }
                    else
                    {
                        rectangleF12 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalRadius.ToString()))
                    {
                        string s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
                        if (s.IndexOf(".") == -1)
                        {
                            for (int i = 0; i < decimalPlaces; i++)
                            {
                                if (i == 0)
                                    s += ".";
                                s += "0";
                            }
                        }
                        else
                        {
                            int dic = s.Length - s.IndexOf(".") - 1;
                            if (dic < decimalPlaces)
                            {
                                for (int i = 0; i < decimalPlaces - dic; i++)
                                {
                                    s += "0";
                                }
                            }
                        }
                        sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                        rectangleF13.Width = sizeF1.Width;
                        rectangleF13.Height = sizeF1.Height;
                        g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF13);
                    }
                    else
                    {
                        rectangleF13 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelDiameter.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(radius, decimalPlaces) + "px", textfont);
                        rectangleF14.Width = sizeF1.Width;
                        rectangleF14.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(radius, decimalPlaces) + "px", textfont, textbrush, rectangleF14);
                    }
                    else
                    {
                        rectangleF14 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDiameter.ToString()))
                    {
                        string s = Math.Round(radius * unitLength, decimalPlaces).ToString();
                        if (s.IndexOf(".") == -1)
                        {
                            for (int i = 0; i < decimalPlaces; i++)
                            {
                                if (i == 0)
                                    s += ".";
                                s += "0";
                            }
                        }
                        else
                        {
                            int dic = s.Length - s.IndexOf(".") - 1;
                            if (dic < decimalPlaces)
                            {
                                for (int i = 0; i < decimalPlaces - dic; i++)
                                {
                                    s += "0";
                                }
                            }
                        }
                        sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                        rectangleF15.Width = sizeF1.Width;
                        rectangleF15.Height = sizeF1.Height;
                        g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF15);
                    }
                    else
                    {
                        rectangleF15 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelDistance.ToString()))
                    {
                        sizeF1 = g.MeasureString(frontStr + Math.Round(this.length, decimalPlaces) + "px", textfont);
                        rectangleF16.Width = sizeF1.Width;
                        rectangleF16.Height = sizeF1.Height;
                        g.DrawString(frontStr + Math.Round(this.length, decimalPlaces) + "px", textfont, textbrush, rectangleF16);
                    }
                    else
                    {
                        rectangleF16 = new RectangleF();
                    }
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDistance.ToString()))
                    {
                        string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
                        if (s.IndexOf(".") == -1)
                        {
                            for (int i = 0; i < decimalPlaces; i++)
                            {
                                if (i == 0)
                                    s += ".";
                                s += "0";
                            }
                        }
                        else
                        {
                            int dic = s.Length - s.IndexOf(".") - 1;
                            if (dic < decimalPlaces)
                            {
                                for (int i = 0; i < decimalPlaces - dic; i++)
                                {
                                    s += "0";
                                }
                            }
                        }
                        sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                        rectangleF17.Width = sizeF1.Width;
                        rectangleF17.Height = sizeF1.Height;
                        g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF17);
                    }
                    else
                    {
                        rectangleF17 = new RectangleF();
                    }
                }
                //还原为原始旋转矩阵
                g.Transform = mtxSave;
                matrix.Dispose();
                g.DrawLine(pen, new PointF((float)x0, (float)y0), new PointF((float)x01, (float)y01));
            }
            pen.Dispose();
            if (this.configurationFile)
                this.pointChange = false;
            this.mouseUpAttribute = false;
            pointChangeObject.Remove(this.drawToolType);
        }
        /// <summary>
        /// 停止绘制时
        /// </summary>
        /// <param name="up"></param>
        public override void MouseUp(bool up)
        {
            mouseUpPointChange = up;
        }
        public void AddPoint(Point point)
        {
            pointArray.Add(point);
        }

        public override int HandleCount
        {
            get
            {
                return pointArray.Count + 1;
            }
        }

        /// <summary>
        /// Get handle pointscroll by 1-based number
        /// </summary>
        /// <param name="handleNumber"></param>
        /// <returns></returns>
        public override PointF GetHandle(int handleNumber)
        {
            float x = 0;
            float y = 0;

            switch (handleNumber)
            {
                case 1:
                    x = pointArray[0].X;
                    y = pointArray[0].Y;
                    break;
                case 2:
                    x = pointArray[1].X;
                    y = pointArray[1].Y;
                    break;
                case 3:
                    x = pointArray[2].X;
                    y = pointArray[2].Y;
                    break;
                case 4:
                    x = Convert.ToInt32(x0);
                    y = Convert.ToInt32(y0);
                    break;
                case 5:
                    x = pointArray[3].X;
                    y = pointArray[3].Y;
                    break;
                case 6:
                    x = pointArray[4].X;
                    y = pointArray[4].Y;
                    break;
                case 7:
                    x = pointArray[5].X;
                    y = pointArray[5].Y;
                    break;
                case 8:
                    x = Convert.ToInt32(x01);
                    y = Convert.ToInt32(y01);
                    break;
                case 9:
                    x = this.pointL.X;
                    y = this.pointL.Y;
                    break;
            }

            return new PointF(x, y);
        }

        /// <summary>
        /// Hit test.
        /// Return value: -1 - no hit
        ///                0 - hit anywhere
        ///                > 1 - handle number
        /// </summary>
        /// <param name="pointscroll"></param>
        /// <returns></returns>
        public override int HitTest(Point point)
        {
            if (Selected)
            {
                for (int i = 1; i <= 8; i++)
                {
                    if (GetHandleRectangle(i).Contains(point))
                        return i;
                }
                if (GetRectanglePosition(this.rectangleF1, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 1;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF2, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 2;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF3, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 3;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF4, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 4;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF5, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 5;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF6, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 6;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF7, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 7;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF8, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 8;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF9, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 9;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF10, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 10;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF11, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 11;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF12, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 12;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF13, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 13;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF14, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 14;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF15, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 15;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF16, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 16;
                    return 9;
                }
                else if (GetRectanglePosition(this.rectangleF17, point, this.rotationPoint, angle))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                    moveKb = 17;
                    return 9;
                }
            }
                if (PointInObject(point))
                return 0;

            return -1;
        }
        protected override bool PointInObject(Point point)
        {
            CreateObjects();

            return AreaRegion.IsVisible(point);
        }
        public override bool IntersectsWith(Rectangle rectangle)
        {
            CreateObjects();

            return AreaRegion.IsVisible(rectangle);
        }
        protected virtual void CreateObjects()
        {
            if (AreaPath != null)
                return;

            AreaPath = new GraphicsPath();
            AreaPath.AddRectangle(GetBoundingBox());
            AreaPath.CloseFigure();
            AreaRegion = new Region(AreaPath);
        }
        protected GraphicsPath AreaPath
        {
            get
            {
                return areaPath;
            }
            set
            {
                areaPath = value;
            }
        }
        protected Region AreaRegion
        {
            get
            {
                return areaRegion;
            }
            set
            {
                areaRegion = value;
            }
        }
        protected Pen AreaPen
        {
            get
            {
                return areaPen;
            }
            set
            {
                areaPen = value;
            }
        }
        public override Cursor GetHandleCursor(int handleNumber)
        {
            return handleCursor;
        }

        public override void MoveHandleTo(Point point, int handleNumber)
        {
            if(handleNumber<4)
            {
                this.mouseUpPointChange = true;
                if (handleNumber == 1)
                {
                    this.rectangleF1.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF2.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF3.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF4.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF5.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF6.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF7.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF8.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF9.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF10.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF11.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF12.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF13.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF14.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF15.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF16.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF17.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                }
                pointArray[handleNumber - 1] = point;
            }
            else if (handleNumber > 4 && handleNumber < 8)
            {
                this.mouseUpPointChange = true;
                pointArray[handleNumber - 2] = point;
            }
            else if(handleNumber == 9)
            {
                point = SetOffsetAfterRotation(point, this.rotationPoint, angle);
                if (this.moveKb == 1)
                    this.rectangleF1.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 2)
                    this.rectangleF2.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 3)
                    this.rectangleF3.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 4)
                    this.rectangleF4.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 5)
                    this.rectangleF5.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 6)
                    this.rectangleF6.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 7)
                    this.rectangleF7.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 8)
                    this.rectangleF8.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 9)
                    this.rectangleF9.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 10)
                    this.rectangleF10.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 11)
                    this.rectangleF11.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 12)
                    this.rectangleF12.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 13)
                    this.rectangleF13.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 14)
                    this.rectangleF14.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 15)
                    this.rectangleF15.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 16)
                    this.rectangleF16.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 17)
                    this.rectangleF17.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                this.pointL = point;
            }
            else if(handleNumber == 4)
            {
                this.mouseUpPointChange = true;
                for (int i = 0; i < 3; i++)
                {
                    PointF pointF1 = pointArray[i];
                    pointF1.X += point.X - (float)x0;
                    pointF1.Y += point.Y - (float)y0;
                    pointArray[i] = pointF1;
                }
            }
            else if (handleNumber == 8)
            {
                this.mouseUpPointChange = true;
                for (int i = 3; i < 6; i++)
                {
                    PointF pointF1 = pointArray[i];
                    pointF1.X += point.X - (float)x01;
                    pointF1.Y += point.Y - (float)y01;
                    pointArray[i] = pointF1;
                }
            }
        }

        public override void Move(int deltaX, int deltaY)
        {
            int x = ISurfaceBox.UnscaleScalar(deltaX);
            int y = ISurfaceBox.UnscaleScalar(deltaY);
            for (int i = 0; i < 6; i++)
            {
                pointArray[i] = new PointF(pointArray[i].X + ISurfaceBox.UnscaleScalar(deltaX), pointArray[i].Y + ISurfaceBox.UnscaleScalar(deltaY));
            }

            this.startPoint = pointArray[0];
            pointL.X += x;
            pointL.Y += y;
            this.rectangleF1.Offset(x, y);
            this.rectangleF2.Offset(x, y);
            this.rectangleF3.Offset(x, y);
            this.rectangleF4.Offset(x, y);
            this.rectangleF5.Offset(x, y);
            this.rectangleF6.Offset(x, y);
            this.rectangleF7.Offset(x, y);
            this.rectangleF8.Offset(x, y);
            this.rectangleF9.Offset(x, y);
            this.rectangleF10.Offset(x, y);
            this.rectangleF11.Offset(x, y);
            this.rectangleF12.Offset(x, y);
            this.rectangleF13.Offset(x, y);
            this.rectangleF14.Offset(x, y);
            this.rectangleF15.Offset(x, y);
            this.rectangleF16.Offset(x, y);
            this.rectangleF17.Offset(x, y);
            Invalidate();
        }
        /// <summary>
        /// Invalidate object.
        /// When object is invalidated, path used for hit test
        /// is released and should be created again.
        /// </summary>
        protected void Invalidate()
        {
            if (AreaPath != null)
            {
                AreaPath.Dispose();
                AreaPath = null;
            }

            if (AreaPen != null)
            {
                AreaPen.Dispose();
                AreaPen = null;
            }

            if (AreaRegion != null)
            {
                AreaRegion.Dispose();
                AreaRegion = null;
            }
        }
        /// <summary>
        /// Normalize rectangle
        /// </summary>
        public override void Normalize()
        {
            this.isPress = false;
            rectangle = Annotation.DrawObject.GetNormalizedRectangle(rectangle);
        }
        public override RectangleF GetBoundingBox()
        {
            Rectangle rectangle;
            int minx = 0, maxx = 0, miny = 0, maxy = 0;
            for (int i = 0; i < pointArray.Count; i++)
            {
                if (i == 0)
                {
                    minx = maxx = (int)pointArray[i].X;
                    miny = maxy = (int)pointArray[i].Y;
                }
                else
                {
                    if (pointArray[i].X > maxx) maxx = (int)pointArray[i].X;
                    if (pointArray[i].X < minx) minx = (int)pointArray[i].X;
                    if (pointArray[i].Y > maxy) maxy = (int)pointArray[i].Y;
                    if (pointArray[i].Y < miny) miny = (int)pointArray[i].Y;
                }
            }
            rectangle = new Rectangle(minx, miny, maxx - minx, maxy - miny);

            return rectangle;
        }

        internal void setNextPoint(Point p)
        {
            AddPoint(p);
        }

        public override void DrawTracker(Graphics g)
        {
            if (!Selected)
                return;

           if (pointArray.Count >= 6)
            {
                SolidBrush brush = new SolidBrush(Color.FromArgb(MarkpointAreaColor));
                Pen pen = new Pen(Color.FromArgb(MarkpointLineColor), MarkpointLineWidth);
                for (int i = 1; i <= 8; i++)
                {
                    if (i == 9)
                    {
                        brush = new SolidBrush(Color.Transparent);
                        pen = new Pen(Color.Transparent);
                    }
                    switch (MarkpointStyle)
                    {
                        case 0:
                            g.FillRectangle(brush, GetHandleRectangle(i));
                            g.DrawRectangle(pen, GetHandleRectangle(i));
                            break;
                        case 1:
                            g.FillEllipse(brush, GetHandleRectangle(i));
                            g.DrawEllipse(pen, GetHandleRectangle(i));
                            break;
                        case 2:
                            g.FillPolygon(brush, GetHandlePoint(i));
                            g.DrawPolygon(pen, GetHandlePoint(i));
                            break;
                    }
                }

                brush.Dispose();
                pen.Dispose();

                RectangleF r = GetBoundingBox();
            }
        }

        public override List<PointF> GetPoints()
        {
            return pointArray;
        }

        public override ParentStyleModel GetStyle()
        {
            return measureCenterCenterSize;
        }
    }
}