附加部分三点法代码

OTSIncAMeasureApp/4-OTSSamplespaceGraphicsPanel/OTSSamplespaceWindow.cs

@@ -131,6 +131,8 @@ namespace OTSMeasureApp
         bool m_IsDrawPolygonFinish = false;
         //手动绘制测量区域的形状类型
         int m_DrawMeasureType = 1;
+        //是否为3点发画圆形
+        bool IsCirCleByThree = false;
         //是否手绘标识准备
         public bool m_IsDrawMeasureReady = false;
         //是否手绘标识
@@ -257,12 +259,10 @@ namespace OTSMeasureApp
         }
 
         /// <summary>
-        /// 三点画圆形测试区域 事件
+        /// 三点画圆形测试区域 事件  先多边形后圆形
         /// </summary>
         public void Rev_DDrawCircleMeasureByThreePoints_MeasureAppToSampleWindow_Event()
         {
-            //多边形测量区域完成标识
-            m_DrawPolygonFinishGDIObjects = new List<ARectangleGDIObject>();
             //手绘测量区域类型为圆形
             m_DrawMeasureType = (int)CreateRectangleType.CircleByThreePoints;
             m_IsDrawMeasureReady = true;
@@ -921,7 +921,29 @@ namespace OTSMeasureApp
             }
         }
         #endregion
+        private void GetTriangleExcenterRadius(PointF A, PointF B, PointF C, out float R, out PointF center)
+        {
+            //same point
+            if (A == B && A == C)
+            {
+                R = 0;
+                //center = new Point((int)A.X,(int)A.Y);
+                center = A;
+                return;
+            }
+            double x1 = A.X, x2 = B.X, x3 = C.X, y1 = A.Y, y2 = B.Y, y3 = C.Y;
+            double C1 = Math.Pow(x1, 2) + Math.Pow(y1, 2) - Math.Pow(x2, 2) - Math.Pow(y2, 2);
+            double C2 = Math.Pow(x2, 2) + Math.Pow(y2, 2) - Math.Pow(x3, 2) - Math.Pow(y3, 2);
+            double centery = (C1 * (x2 - x3) - C2 * (x1 - x2)) / (2 * (y1 - y2) * (x2 - x3) - 2 * (y2 - y3) * (x1 - x2));
+            double centerx = (C1 - 2 * centery * (y1 - y2)) / (2 * (x1 - x2));
+            center = new Point((int)centerx, (int)centery);
+            R = GetDistance(A, center);
+        }
 
+        private float GetDistance(PointF A, PointF B)
+        {
+            return (float)Math.Sqrt(Math.Pow((A.X - B.X), 2) + Math.Pow((A.Y - B.Y), 2));
+        }
         #region 窗体事件
         private void OTSSamplespaceWindow_Load(object sender, EventArgs e)
         {
@@ -1099,41 +1121,11 @@ namespace OTSMeasureApp
                 }
                 else if(m_DrawMeasureType == (int)CreateRectangleType.CircleByThreePoints)
                 {
-                    //显示绘制多边形完成标识
-                    if (m_PolygonPoint.Count == 3)
-                    {
-                        Point startPoint = new Point((int)(m_PolygonPoint[0].X), (int)(m_PolygonPoint[0].Y));
-                        
-                                //清除当前的样品测量区域
-                                for (int measureIndex = m_MeasureGDIObjects.Count - 1; measureIndex >= 0; measureIndex--)
-                                {
-                                    if (m_MeasureGDIObjects[measureIndex].SampleName == sampleName)
-                                    {
-                                        m_MeasureGDIObjects.RemoveAt(measureIndex);
-                                        break;
-                                    }
-                                }
-                                //删除存在的帧图
-                                for (int singleIndex = m_SingleGDIObjects.Count - 1; singleIndex >= 0; singleIndex--)
-                                {
-                                    if (m_SingleGDIObjects[singleIndex].SampleName == sampleName)
-                                    {
-                                        m_SingleGDIObjects.RemoveAt(singleIndex);
-                                    }
-                                }
-                                //设置手绘标识
-                                m_IsDrawMeasureReady = false;
-                                m_IsDrawMeasure = false;
-                                m_IsDrawPolygonFinish = false;
-                                this.Cursor = Cursors.Default;
-                                return;
-                           
-                        }
-                    
+
                     //添加多边形点信息
                     m_MouseDownPoint = new Point((int)(m_MouseDownPoint.X), (int)(m_MouseDownPoint.Y));
                     m_PolygonPoint.Add(m_MouseDownPoint);
-                    CreateRectangle createPoint = new CreateRectangle(m_PolygonPoint, (int)CreateRectangleType.CircleByThreePoints, m_DrawMeasureType, sampleHoleName, sampleName, Color.Red);
+                    CreateRectangle createPoint = new CreateRectangle(m_PolygonPoint, (int)CreateRectangleType.Polygon, m_DrawMeasureType, sampleHoleName, sampleName, Color.Red);
                     if (m_DrawMeasureGDIObjects.Count > 0)
                     {
                         m_DrawMeasureGDIObjects[0] = createPoint;
@@ -1141,8 +1133,48 @@ namespace OTSMeasureApp
                     else
                     {
                         m_DrawMeasureGDIObjects.Add(createPoint);
-                        System.Threading.Thread.Sleep(1);
-                        //MessageBox.Show("a");
+                    }
+
+                    //显示绘制多边形完成标识
+                    if (m_PolygonPoint.Count == 3)
+                    {
+                        //转为圆形这里
+                        m_DrawMeasureType = (int)CreateRectangleType.Circle;
+                        float r = 0;
+                        PointF Centerpoint = new PointF();
+                        GetTriangleExcenterRadius(m_PolygonPoint[0], m_PolygonPoint[1], m_PolygonPoint[2], out r, out Centerpoint);
+                        RectangleF rectangleThree = new RectangleF(Centerpoint, new SizeF(r, r));
+                        Color MeasureColor = Color.Red;
+                        CreateRectangle createRectangle = new CreateRectangle(rectangleThree, m_PolygonPoint[0], (int)CreateRectangleType.MeasureArea, m_DrawMeasureType, sampleName, sampleName, MeasureColor);
+                        //在鼠标点击时添加一个默认大小与位置的图形
+                        createRectangle.RegionF = createRectangle.Region;
+                        createRectangle.DrawRegionF = createRectangle.Region;
+                        m_DrawMeasureGDIObjects.Add(createRectangle);
+
+                        //清除当前的样品测量区域
+                        for (int measureIndex = m_MeasureGDIObjects.Count - 1; measureIndex >= 0; measureIndex--)
+                        {
+                            if (m_MeasureGDIObjects[measureIndex].SampleName == sampleName)
+                            {
+                                m_MeasureGDIObjects.RemoveAt(measureIndex);
+                                break;
+                            }
+                        }
+                        //删除存在的帧图
+                        for (int singleIndex = m_SingleGDIObjects.Count - 1; singleIndex >= 0; singleIndex--)
+                        {
+                            if (m_SingleGDIObjects[singleIndex].SampleName == sampleName)
+                            {
+                                m_SingleGDIObjects.RemoveAt(singleIndex);
+                            }
+                        }
+                        //设置手绘标识
+                        m_IsDrawMeasureReady = false;
+                        m_IsDrawMeasure = false;
+                        m_IsDrawPolygonFinish = false;
+                        this.Cursor = Cursors.Default;
+                        return;
+
                     }
                     return;
                 }
@@ -2170,7 +2202,7 @@ namespace OTSMeasureApp
                 //获取当前的鼠标点击位置
                 this.m_MouseUpPoint = new Point(e.X, e.Y);
                 //绘制多边形
-                if (m_DrawMeasureType != (int)CreateRectangleType.Polygon)
+                if (m_DrawMeasureType != (int)CreateRectangleType.Polygon && m_DrawMeasureType != (int)CreateRectangleType.CircleByThreePoints)
                 {
                     foreach (var item in m_DrawMeasureGDIObjects)
                     {
@@ -2334,7 +2366,7 @@ namespace OTSMeasureApp
                                                         //减少样品数量
                                                         sampleHoleCountItem.SampleCount -= 1;
                                                     }
-
+yy
                                                 }
                                             }
                                         }
@@ -2626,6 +2658,7 @@ namespace OTSMeasureApp
                         if (m_DrawMeasureGDIObjects[i] != null)
                         {
                             m_DrawMeasureGDIObjects[i].EndPoint = this.m_MouseMovePoint;
+                            log.Trace("aaa");
                             m_DrawMeasureGDIObjects[i].OnPaint(e);
                         }
                     }