【C#联合halcon实现绘制ROI功能】

前言

C#联合halcon实现绘制ROI功能：
C#联合Halcon，使用HDrawingObject、HDrawingObjectXld，绘制矩形、方向矩形、圆形、椭圆、自定义ROI。支持拖动、重设大小、选中，右键复制、粘贴、删除功能。

运行结果

代码

代码结构

MainForm 视图
MainViewModel 视图模型
ROI ROI模型
GenArrow 生成带箭头的点
GrawArrowViewModel 绘制箭头视图模型

MainForm

public partial class MainForm : Form{DrawArrowViewModel drawArrowViewModel;MainViewModel viewModel;public MainForm(){InitializeComponent();drawArrowViewModel = new DrawArrowViewModel(this);viewModel = new MainViewModel(this);}}

MainForm 设计器

partial class MainForm
{/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// </summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){this.panel_Top = new System.Windows.Forms.Panel();this.checkBox_ShowROI = new System.Windows.Forms.CheckBox();this.Btn_LoadImage = new System.Windows.Forms.Button();this.panel_Bottom = new System.Windows.Forms.Panel();this.panel_Left = new System.Windows.Forms.Panel();this.Lbx_ROIList = new System.Windows.Forms.ListBox();this.Cbx_ROIType = new System.Windows.Forms.ComboBox();this.Btn_CreateROI = new System.Windows.Forms.Button();this.Btn_DrawArrow = new System.Windows.Forms.Button();this.panel_ImageWin = new System.Windows.Forms.Panel();this.HSImageWindow = new HalconDotNet.HSmartWindowControl();this.panel_ImageInfo = new System.Windows.Forms.Panel();this.Tbx_ImageInfo = new System.Windows.Forms.TextBox();this.panel_Top.SuspendLayout();this.panel_Left.SuspendLayout();this.panel_ImageWin.SuspendLayout();this.panel_ImageInfo.SuspendLayout();this.SuspendLayout();// // panel_Top// this.panel_Top.Controls.Add(this.checkBox_ShowROI);this.panel_Top.Controls.Add(this.Btn_LoadImage);this.panel_Top.Dock = System.Windows.Forms.DockStyle.Top;this.panel_Top.Location = new System.Drawing.Point(0, 0);this.panel_Top.Name = "panel_Top";this.panel_Top.Size = new System.Drawing.Size(1449, 100);this.panel_Top.TabIndex = 0;// // checkBox_ShowROI// this.checkBox_ShowROI.AutoSize = true;this.checkBox_ShowROI.Font = new System.Drawing.Font("宋体", 12F);this.checkBox_ShowROI.Location = new System.Drawing.Point(281, 44);this.checkBox_ShowROI.Name = "checkBox_ShowROI";this.checkBox_ShowROI.Size = new System.Drawing.Size(120, 28);this.checkBox_ShowROI.TabIndex = 2;this.checkBox_ShowROI.Text = "显示ROI";this.checkBox_ShowROI.UseVisualStyleBackColor = true;// // Btn_LoadImage// this.Btn_LoadImage.Location = new System.Drawing.Point(53, 31);this.Btn_LoadImage.Name = "Btn_LoadImage";this.Btn_LoadImage.Size = new System.Drawing.Size(136, 46);this.Btn_LoadImage.TabIndex = 1;this.Btn_LoadImage.Text = "加载图像";this.Btn_LoadImage.UseVisualStyleBackColor = true;// // panel_Bottom// this.panel_Bottom.Dock = System.Windows.Forms.DockStyle.Bottom;this.panel_Bottom.Location = new System.Drawing.Point(0, 804);this.panel_Bottom.Name = "panel_Bottom";this.panel_Bottom.Size = new System.Drawing.Size(1449, 113);this.panel_Bottom.TabIndex = 1;// // panel_Left// this.panel_Left.Controls.Add(this.Lbx_ROIList);this.panel_Left.Controls.Add(this.Cbx_ROIType);this.panel_Left.Controls.Add(this.Btn_CreateROI);this.panel_Left.Controls.Add(this.Btn_DrawArrow);this.panel_Left.Dock = System.Windows.Forms.DockStyle.Left;this.panel_Left.Location = new System.Drawing.Point(0, 100);this.panel_Left.Name = "panel_Left";this.panel_Left.Size = new System.Drawing.Size(411, 704);this.panel_Left.TabIndex = 1;// // Lbx_ROIList// this.Lbx_ROIList.Font = new System.Drawing.Font("宋体", 14F);this.Lbx_ROIList.FormattingEnabled = true;this.Lbx_ROIList.ItemHeight = 28;this.Lbx_ROIList.Location = new System.Drawing.Point(13, 221);this.Lbx_ROIList.Name = "Lbx_ROIList";this.Lbx_ROIList.ScrollAlwaysVisible = true;this.Lbx_ROIList.Size = new System.Drawing.Size(358, 340);this.Lbx_ROIList.TabIndex = 3;// // Cbx_ROIType// this.Cbx_ROIType.Font = new System.Drawing.Font("宋体", 16F);this.Cbx_ROIType.FormattingEnabled = true;this.Cbx_ROIType.Location = new System.Drawing.Point(13, 157);this.Cbx_ROIType.Name = "Cbx_ROIType";this.Cbx_ROIType.Size = new System.Drawing.Size(358, 41);this.Cbx_ROIType.TabIndex = 2;// // Btn_CreateROI// this.Btn_CreateROI.Location = new System.Drawing.Point(12, 78);this.Btn_CreateROI.Name = "Btn_CreateROI";this.Btn_CreateROI.Size = new System.Drawing.Size(359, 57);this.Btn_CreateROI.TabIndex = 1;this.Btn_CreateROI.Text = "创建ROI";this.Btn_CreateROI.UseVisualStyleBackColor = true;// // Btn_DrawArrow// this.Btn_DrawArrow.Location = new System.Drawing.Point(12, 6);this.Btn_DrawArrow.Name = "Btn_DrawArrow";this.Btn_DrawArrow.Size = new System.Drawing.Size(359, 57);this.Btn_DrawArrow.TabIndex = 0;this.Btn_DrawArrow.Text = "绘制箭头";this.Btn_DrawArrow.UseVisualStyleBackColor = true;// // panel_ImageWin// this.panel_ImageWin.Controls.Add(this.HSImageWindow);this.panel_ImageWin.Controls.Add(this.panel_ImageInfo);this.panel_ImageWin.Dock = System.Windows.Forms.DockStyle.Fill;this.panel_ImageWin.Location = new System.Drawing.Point(411, 100);this.panel_ImageWin.Name = "panel_ImageWin";this.panel_ImageWin.Size = new System.Drawing.Size(1038, 704);this.panel_ImageWin.TabIndex = 2;// // HSImageWindow// this.HSImageWindow.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;this.HSImageWindow.AutoValidate = System.Windows.Forms.AutoValidate.EnableAllowFocusChange;this.HSImageWindow.Dock = System.Windows.Forms.DockStyle.Fill;this.HSImageWindow.HDoubleClickToFitContent = true;this.HSImageWindow.HDrawingObjectsModifier = HalconDotNet.HSmartWindowControl.DrawingObjectsModifier.None;this.HSImageWindow.HImagePart = new System.Drawing.Rectangle(0, 0, 640, 480);this.HSImageWindow.HKeepAspectRatio = true;this.HSImageWindow.HMoveContent = true;this.HSImageWindow.HZoomContent = HalconDotNet.HSmartWindowControl.ZoomContent.WheelForwardZoomsIn;this.HSImageWindow.Location = new System.Drawing.Point(0, 0);this.HSImageWindow.Margin = new System.Windows.Forms.Padding(0);this.HSImageWindow.Name = "HSImageWindow";this.HSImageWindow.Size = new System.Drawing.Size(1038, 666);this.HSImageWindow.TabIndex = 1;this.HSImageWindow.WindowSize = new System.Drawing.Size(1038, 666);// // panel_ImageInfo// this.panel_ImageInfo.BackColor = System.Drawing.SystemColors.ControlDarkDark;this.panel_ImageInfo.Controls.Add(this.Tbx_ImageInfo);this.panel_ImageInfo.Dock = System.Windows.Forms.DockStyle.Bottom;this.panel_ImageInfo.Location = new System.Drawing.Point(0, 666);this.panel_ImageInfo.Name = "panel_ImageInfo";this.panel_ImageInfo.Size = new System.Drawing.Size(1038, 38);this.panel_ImageInfo.TabIndex = 0;// // Tbx_ImageInfo// this.Tbx_ImageInfo.BackColor = System.Drawing.SystemColors.ButtonShadow;this.Tbx_ImageInfo.Dock = System.Windows.Forms.DockStyle.Fill;this.Tbx_ImageInfo.Font = new System.Drawing.Font("宋体", 14F);this.Tbx_ImageInfo.Location = new System.Drawing.Point(0, 0);this.Tbx_ImageInfo.Name = "Tbx_ImageInfo";this.Tbx_ImageInfo.Size = new System.Drawing.Size(1038, 39);this.Tbx_ImageInfo.TabIndex = 0;// // MainForm// this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(1449, 917);this.Controls.Add(this.panel_ImageWin);this.Controls.Add(this.panel_Left);this.Controls.Add(this.panel_Bottom);this.Controls.Add(this.panel_Top);this.DoubleBuffered = true;this.Name = "MainForm";this.Text = "MainForm";this.panel_Top.ResumeLayout(false);this.panel_Top.PerformLayout();this.panel_Left.ResumeLayout(false);this.panel_ImageWin.ResumeLayout(false);this.panel_ImageInfo.ResumeLayout(false);this.panel_ImageInfo.PerformLayout();this.ResumeLayout(false);}#endregionprivate System.Windows.Forms.Panel panel_Top;private System.Windows.Forms.Panel panel_Bottom;private System.Windows.Forms.Panel panel_Left;private System.Windows.Forms.Panel panel_ImageWin;private System.Windows.Forms.Panel panel_ImageInfo;public HalconDotNet.HSmartWindowControl HSImageWindow;public System.Windows.Forms.Button Btn_DrawArrow;public System.Windows.Forms.Button Btn_LoadImage;public System.Windows.Forms.TextBox Tbx_ImageInfo;public System.Windows.Forms.Button Btn_CreateROI;public System.Windows.Forms.ComboBox Cbx_ROIType;public System.Windows.Forms.ListBox Lbx_ROIList;public System.Windows.Forms.CheckBox checkBox_ShowROI;
}

MainViewModel

public class MainViewModel
{#region 集合//ROI类型字典private Dictionary<string, ROIType> _roiTypeDictionary = new Dictionary<string, ROIType>();//ROI类型字典public Dictionary<string, ROIType> RoiTypeDictionary { get => _roiTypeDictionary; }//ROI类型字典键public List<string> ROITypeNameList { get => RoiTypeDictionary.Keys.ToList(); }//ROI字典private Dictionary<ROI, DrawingObject> _roiDictionary = new Dictionary<ROI, DrawingObject>();//ROI字典public Dictionary<ROI, DrawingObject> ROIDictionary { get => _roiDictionary; }//ROI字典 - 值public List<DrawingObject> ROIValues { get => ROIDictionary.Values.ToList(); }#endregion#region 字段private MainForm mainForm;                      //操作窗体private string currentRoiType = string.Empty;  //当前ROI类型private int ImageChannel = 0;                   //图像通道private ContextMenuStrip RoiRightMenu;          //右键菜单private HWindow windowID = null;                //窗口IDprivate HTuple CurrentROIHandle = null;         //当前选中的ROIprivate ROI copyROI = null;                     //当前ROI对象public event EventHandler<ROIOperator> NotifyROIOperation;  //ROI操作事件#endregion//构造函数public MainViewModel(MainForm mainForm){this.mainForm = mainForm;this.windowID = this.mainForm.HSImageWindow.HalconWindow;//事件绑定this.mainForm.HSImageWindow.HMouseDown += HSImageWindow_HMouseDown;this.mainForm.Btn_CreateROI.Click += Btn_CreateROI_Click;this.mainForm.Cbx_ROIType.SelectedIndexChanged += Cbx_ROIType_SelectedIndexChanged;this.mainForm.Lbx_ROIList.SelectedIndexChanged += Lbx_ROIList_SelectedIndexChanged;this.mainForm.checkBox_ShowROI.CheckedChanged += CheckBox_ShowROI_CheckedChanged;Initialize();//数据绑定，ROI类型集合this.mainForm.Cbx_ROIType.DataSource = ROITypeNameList;this.mainForm.Cbx_ROIType.SelectedIndex = 0;}//ROI-列表索引变更private void Lbx_ROIList_SelectedIndexChanged(object sender, EventArgs e){if (sender is ListBox item){string handler = item.SelectedItem?.ToString();var tempDrawObj = ROIDictionary.FirstOrDefault(roi =>roi.Key.Name.ToString().Equals(handler)).Value;if (tempDrawObj != null){Debug.WriteLine($"{CurrentROIHandle} => {tempDrawObj.Obj.ID}");HOperatorSet.DetachDrawingObjectFromWindow(windowID, tempDrawObj.Obj);foreach ( var draw in ROIValues){if (draw.Obj.ID != tempDrawObj.Obj.ID)HOperatorSet.AttachDrawingObjectToWindow(windowID, draw.Obj);}foreach (var draw in ROIValues){if (draw.Obj.ID != tempDrawObj.Obj.ID)HOperatorSet.DetachDrawingObjectFromWindow(windowID, draw.Obj);}HOperatorSet.AttachDrawingObjectToWindow(windowID, tempDrawObj.Obj);CurrentROIHandle = tempDrawObj.Obj.ID;}}}//显示ROIprivate void CheckBox_ShowROI_CheckedChanged(object sender, EventArgs e){if (this.mainForm.checkBox_ShowROI.Checked){foreach (var item in ROIDictionary.Values){HOperatorSet.AttachDrawingObjectToWindow(windowID, item.Obj);}}else{foreach (var item in ROIDictionary.Values){HOperatorSet.DetachDrawingObjectFromWindow(windowID, item.Obj);}}}//初始化方法：初始化ROI类型public void Initialize(){//初始化ROI列表RoiTypeDictionary.Add("矩形1", ROIType.RECTANGLE1);RoiTypeDictionary.Add("矩形2", ROIType.RECTANGLE2);RoiTypeDictionary.Add("圆形", ROIType.CIRCLE);RoiTypeDictionary.Add("椭圆", ROIType.ELLIPSE);RoiTypeDictionary.Add("半圆", ROIType.CIRCLE_SECTOR);RoiTypeDictionary.Add("半椭圆", ROIType.ELLIPSE_SECTOR);RoiTypeDictionary.Add("线条", ROIType.LINE);RoiTypeDictionary.Add("轮廓", ROIType.XLD_CONTOUR);RoiTypeDictionary.Add("文本", ROIType.TEXT);//初始化ROI右键菜单RoiRightMenu = new ContextMenuStrip();ToolStripMenuItem menuItem1 = new ToolStripMenuItem("复制");ToolStripMenuItem menuItem2 = new ToolStripMenuItem("粘贴");ToolStripMenuItem menuItem3 = new ToolStripMenuItem("删除");menuItem1.Click += ROIOperation_CopyEvent;menuItem2.Click += ROIOperation_PasterEvent;menuItem3.Click += ROIOperation_RemoveEvent;RoiRightMenu.Items.Add(menuItem1);RoiRightMenu.Items.Add(menuItem2);RoiRightMenu.Items.Add(menuItem3);}//析构函数~MainViewModel(){CurrentROIHandle?.Dispose();copyROI = null;}//ROI右键操作-复制private void ROIOperation_CopyEvent(object sender, EventArgs e){ROI roiObj = ROIDictionary.FirstOrDefault(roi => roi.Value.Obj.ID.Equals(CurrentROIHandle)).Key;if (roiObj!=null){copyROI = roiObj.DeepCopy<ROI>(roiObj); ;Debug.WriteLine($"复制ROI{roiObj.Handle}，新ROI{copyROI.Handle}");}}//ROI右键操作-删除private void ROIOperation_RemoveEvent(object sender, EventArgs e){Debug.WriteLine("移除ROI");ROI roi = ROIDictionary.FirstOrDefault(roiObj => roiObj.Value.Obj.ID.Equals(CurrentROIHandle)).Key;if (roi != null){OnNotifyROIOperation(new ROIOperator(roi.Name, ROIOperation.Remove), null);HDrawingObject drawObj = ROIDictionary[roi].Obj;ROIDictionary.Remove(roi);HOperatorSet.DetachDrawingObjectFromWindow(windowID, drawObj);Debug.WriteLine($"移除ROI{roi.Handle}");}}//ROI右键操作-粘贴private void ROIOperation_PasterEvent(object sender, EventArgs e){Debug.WriteLine("粘贴ROI");if (copyROI != null){ROI roi = new ROI();roi.ID = ROIDictionary.Count;roi.Name = $"{currentRoiType}{ROIDictionary.Count}";roi.Type = copyROI.Type;roi.ShapeParamNames = copyROI.ShapeParamNames;roi.ShapeParamValues = copyROI.ShapeParamValues;for (int i = 0; i < copyROI.ShapeParamValues.Length; i++)roi.ShapeParamValues[i] = roi.ShapeParamValues[i] + 20;DrawingObject drawObj = null;CreateROIDrawingObject(roi, out  drawObj );drawObj.Obj.SetDrawingObjectParams("color", "blue");if (drawObj!=null){ROIDictionary.Add(roi, drawObj);roi.Handle = drawObj.Obj.ID;copyROI = roi;OnNotifyROIOperation(new ROIOperator(roi.Name, ROIOperation.Add), null);HOperatorSet.AttachDrawingObjectToWindow(windowID, drawObj.Obj);Debug.WriteLine($"粘贴ROI{copyROI.Handle}");}}}//鼠标按下弹出右键菜单private void HSImageWindow_HMouseDown(object sender, HMouseEventArgs e){if (e.Button == MouseButtons.Left){// 检查鼠标点击位置是否在绘图对象内foreach(DrawingObject drawingObject in ROIValues){GetDrawingObjectShapeParameter(drawingObject,out HObject shape ,out HTuple results);}}if (e.Button == MouseButtons.Right)if (CurrentROIHandle != null)if (sender is HSmartWindowControl control)RoiRightMenu.Show(Control.MousePosition.X, Control.MousePosition.Y);}//ROI类型列表索引变更private void Cbx_ROIType_SelectedIndexChanged(object sender, EventArgs e){currentRoiType = this.mainForm.Cbx_ROIType.SelectedItem.ToString();}//创建ROI按钮按下private void Btn_CreateROI_Click(object sender, EventArgs e){DrawROI(currentRoiType);}//通知ROI变更private void OnNotifyROIOperation(object sender, EventArgs e){if (sender is ROIOperator roiOperator){switch(roiOperator.Operation){//this.mainForm.Lbx_ROIList.Items.Add(sender);case ROIOperation.Add:this.mainForm.Lbx_ROIList.Items.Add(roiOperator.Name);break;case ROIOperation.Remove:this.mainForm.Lbx_ROIList.Items.Remove(roiOperator.Name);break;case ROIOperation.Update:break;case ROIOperation.Search:break;}}}//绘制ROIpublic void DrawROI(string typeName){ROI roi = new ROI();roi.ID = ROIDictionary.Count;roi.Name = $"{typeName}_{roi.ID}";roi.Type = RoiTypeDictionary[typeName];//获取ROI类型DrawingObject drawObj = null;SetROIParam(roi, roi.Type);CreateROIDrawingObject(roi, out drawObj);if (drawObj != null){HOperatorSet.AttachDrawingObjectToWindow(windowID, drawObj.Obj);roi.Handle = drawObj.Obj.ID;ROIDictionary.Add(roi, drawObj);CurrentROIHandle = drawObj.Obj.ID;OnNotifyROIOperation(new ROIOperator(roi.Name,ROIOperation.Add),null);}}/// <summary>/// 获取绘制对象参数:    input: 自定义DrawingObject对象，///                     output: 形状对象，///                     output: 输出结果参数/// </summary>public void GetDrawingObjectShapeParameter(DrawingObject drawObj,out HObject shape ,out HTuple resultParam){HTuple paramValue = new HTuple();HObject roiTypeObj = new HObject();shape = roiTypeObj;resultParam = paramValue;switch (drawObj.Type){case ROIType.RECTANGLE1:    //矩形1paramValue = drawObj.Obj.GetDrawingObjectParams(drawObj.ShapeParamNames);HOperatorSet.GenRectangle1(out roiTypeObj, paramValue.DArr[0], paramValue.DArr[1], paramValue.DArr[2], paramValue.DArr[3]);shape = roiTypeObj;resultParam = paramValue;break;case ROIType.RECTANGLE2:    //方向矩形paramValue = drawObj.Obj.GetDrawingObjectParams(drawObj.ShapeParamNames);HOperatorSet.GenRectangle2(out roiTypeObj, paramValue.DArr[0], paramValue.DArr[1], paramValue.DArr[2], paramValue.DArr[3], paramValue.DArr[4]);shape = roiTypeObj;resultParam = paramValue;break;case ROIType.CIRCLE:        //圆形paramValue = drawObj.Obj.GetDrawingObjectParams(drawObj.ShapeParamNames);HOperatorSet.GenCircle(out roiTypeObj, paramValue.DArr[0], paramValue.DArr[1], paramValue.DArr[2]);shape = roiTypeObj;resultParam = paramValue;break;case ROIType.ELLIPSE:       //椭圆paramValue = drawObj.Obj.GetDrawingObjectParams(drawObj.ShapeParamNames);HOperatorSet.GenEllipse(out roiTypeObj, paramValue.DArr[0], paramValue.DArr[1], paramValue.DArr[2], paramValue.DArr[3], paramValue.DArr[4]);shape = roiTypeObj;resultParam = paramValue;break;case ROIType.XLD_CONTOUR:   //xld轮廓paramValue = drawObj.Obj.GetDrawingObjectParams(drawObj.ShapeParamNames);shape = roiTypeObj;resultParam = paramValue;break;default:                    //其他shape = null;resultParam = null;break;}}/// <summary>/// 设置ROI参数/// </summary>public void SetROIParam(ROI roi, ROIType type){switch (type){case ROIType.RECTANGLE1:    //矩形1roi.ShapeParamNames = ShapeParam.RECT1;roi.ShapeParamValues = ShapeParamValue.RECT1;break;case ROIType.RECTANGLE2:    //矩形2roi.ShapeParamNames = ShapeParam.RECT2;roi.ShapeParamValues = ShapeParamValue.RECT2;break;case ROIType.CIRCLE:        //圆形roi.ShapeParamNames = ShapeParam.CIRCLE;roi.ShapeParamValues = ShapeParamValue.CIRCLE;break;case ROIType.ELLIPSE:       //椭圆roi.ShapeParamNames = ShapeParam.ELLIPSE;roi.ShapeParamValues = ShapeParamValue.ELLIPSE;break;case ROIType.LINE:          //线型break;case ROIType.XLD_CONTOUR:   //轮廓roi.ShapeParamNames = ShapeParam.XLD_COUTOUR;roi.ShapeParamValues = ShapeParamValue.XLD_COUTOUR;break;case ROIType.TEXT:break;}}/// <summary>/// 创建ROI对象：根据ROI类型和ROI参数，在指定窗体中生成ROI/// </summary>public void CreateROIDrawingObject(ROI roi,out DrawingObject drawObj){drawObj = new DrawingObject();if (ROIDictionary.Count < 10){drawObj.Type = roi.Type;drawObj.ShapeParamNames = roi.ShapeParamNames;drawObj.ShapeParamValues = roi.ShapeParamValues;if (roi.Type == ROIType.XLD_CONTOUR){HOperatorSet.CreateDrawingObjectXld(drawObj.ShapeParamValues[0], drawObj.ShapeParamValues[1], out HTuple drawID);drawObj.Obj = new HDrawingObject(drawID.H);}else{drawObj.Obj = CreateROIObject(drawObj.Type, drawObj.ShapeParamValues);}//line_widthdrawObj.Obj.SetDrawingObjectParams("color", "blue");///绑定事件：ROI：拖拽、调整大小、解除附加、选中drawObj.Obj.OnDrag(OnDragDrawObjectCallback);drawObj.Obj.OnResize(OnResizeDrawObjectCallback);drawObj.Obj.OnDetach(OnDetachDrawObjectCallback);drawObj.Obj.OnSelect(OnSelectDrawObjectCallback);drawObj.Obj.OnAttach(OnAttachDrawObjectCallback);}else{drawObj = null;}}#region 绘制对象的事件绑定 ：ROI信息变更回调（拖拽、调整大小、选择...）/// <summary>/// 附加ROI时触发/// </summary>private void OnAttachDrawObjectCallback(HDrawingObject drawid, HWindow window, string type){Debug.WriteLine($"附加ROI：ID = [{drawid}]");CurrentROIHandle = drawid.ID;}/// <summary>/// 移除ROI时触发/// </summary>private void OnDetachDrawObjectCallback(HDrawingObject drawid, HWindow window, string type){CurrentROIHandle = null ;Debug.WriteLine($"移除ROI：ID = [{drawid.ID}]");}/// <summary>/// 选中ROI时触发/// </summary>private void OnSelectDrawObjectCallback(HDrawingObject drawid, HWindow window, string type){var drawObj = ROIDictionary.FirstOrDefault(obj => obj.Value.Obj.ID == drawid.ID).Value;if (drawObj != null){Debug.WriteLine($"选中ROI：ID = [{drawid.ID}]");}CurrentROIHandle = drawid.ID;}/// <summary>/// 拖拽ROI时触发/// </summary>private void OnDragDrawObjectCallback(HDrawingObject drawid, HWindow window, string type){Debug.WriteLine($"拖拽ROI：ID = [{drawid.ID}]");CurrentROIHandle = drawid.ID;}/// <summary>/// 调整ROI大小时触发/// </summary>private void OnResizeDrawObjectCallback(HDrawingObject drawid, HWindow window, string type){Debug.WriteLine($"调整ROI大小：ID = [{drawid.ID}]");CurrentROIHandle = drawid.ID;}#endregion#region 类型转换、对象创建//创建ROI对象public HDrawingObject CreateROIObject(ROIType type, HTuple[] param){return HDrawingObject.CreateDrawingObject(ROITypeConvert(type), param);}//ROI类型转换private HDrawingObject.HDrawingObjectType ROITypeConvert(ROIType type){return (HDrawingObject.HDrawingObjectType)type;}#endregion 
}

ROI

 [Serializable]public class ROI{public int ID { get; set; }                     //IDpublic string Name { get; set; }                //名称public ROIType Type { get; set; }               //形状类型public HTuple Handle { get; set; }              //绘制对象public HTuple ShapeParamNames { get; set; }     //创建参数名:row1 ,column1,row2 ,column2...public HTuple[] ShapeParamValues { get; set; }  //创建参数值:100,100,200,200...public HObject Contour { get; set; }            //结果轮廓public T DeepCopy<T>(T obj){object retval = null;try{using (MemoryStream ms = new MemoryStream()){BinaryFormatter bf = new BinaryFormatter();//序列化成流bf.Serialize(ms, obj);ms.Seek(0, SeekOrigin.Begin);//反序列化成对象retval = bf.Deserialize(ms);}}catch (Exception ex) { MessageBox.Show(new Form { TopMost = true }, ex.ToString()); }return (T)retval;}}public enum ROIType{RECTANGLE1,RECTANGLE2,CIRCLE,ELLIPSE,CIRCLE_SECTOR,ELLIPSE_SECTOR,LINE,XLD_CONTOUR,TEXT}/// <summary>/// ROI绘制形状参数模型：获取对应形状的参数值时使用/// </summary>public class ShapeParam{/// <summary>/// 圆形参数/// </summary>public readonly static HTuple CIRCLE = new string[] { "row", "column", "radius" };/// <summary>/// 椭圆参数/// </summary>public readonly static HTuple ELLIPSE = new string[] { "row", "column", "phi", "radius1", "radius2" };/// <summary>/// 矩形1参数/// </summary>public readonly static HTuple RECT1 = new string[] { "row1", "column1", "row2", "column2" };/// <summary>/// 矩形2参数/// </summary>public readonly static HTuple RECT2 = new string[] { "row", "column", "phi", "length1", "length2" };/// <summary>/// /// </summary>public readonly static HTuple XLD_COUTOUR = new string[] { "row", "column" };}public class ShapeParamValue{public readonly static HTuple[] CIRCLE = new HTuple[] { 100, 100, 100 };public readonly static HTuple[] ELLIPSE = new HTuple[] { 100, 100, 50, 50, 50 };public readonly static HTuple[] RECT1 = new HTuple[] { 100, 100, 200, 200 }; public readonly static HTuple[] RECT2 = new HTuple[] { 200, 200, 0, 100, 100 }; public readonly static HTuple[] XLD_COUTOUR =  new HTuple[] { (new HTuple(200, 250)), (new HTuple(300, 350)) };}/// <summary>/// 绘制对象/// </summary>    public class DrawingObject{public HDrawingObject Obj { get; set; }public HTuple ShapeParamNames { get; set; }public HTuple[] ShapeParamValues { get; set; }public ROIType Type { get; set; }}public class ROIOperator{public ROIOperator(string name, ROIOperation operation){this.Name = name;this.Operation = operation;}public HTuple ID { get; set; }public string Name { get; set; }public ROIOperation Operation { get; set; }}public enum ROIOperation{Add,Remove,Update,Search}

GenArrow

public class GenArrow
{/// <summary>/// 生成箭头轮廓/// </summary>public static void Gen_arrow_contour_xld(out HObject ho_Arrow, HTuple hv_Row1, HTuple hv_Column1,HTuple hv_Row2, HTuple hv_Column2, HTuple hv_HeadLength, HTuple hv_HeadWidth){HObject ho_TempArrow = null;HTuple hv_Length = new HTuple(); HTuple hv_ZeroLengthIndices = new HTuple();HTuple hv_DR = new HTuple(); HTuple hv_DC = new HTuple(); HTuple hv_HalfHeadWidth = new HTuple();HTuple hv_RowP1 = new HTuple(); HTuple hv_ColP1 = new HTuple();HTuple hv_RowP2 = new HTuple(); HTuple hv_ColP2 = new HTuple();HTuple hv_Index = new HTuple();HOperatorSet.GenEmptyObj(out ho_Arrow);HOperatorSet.GenEmptyObj(out ho_TempArrow);ho_Arrow.Dispose();HOperatorSet.GenEmptyObj(out ho_Arrow);//计算箭头长度hv_Length.Dispose();HOperatorSet.DistancePp(hv_Row1, hv_Column1, hv_Row2, hv_Column2, out hv_Length);////Mark arrows with identical start and end point//(set Length to -1 to avoid division-by-zero exception)hv_ZeroLengthIndices.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_ZeroLengthIndices = hv_Length.TupleFind(0);}if ((int)(new HTuple(hv_ZeroLengthIndices.TupleNotEqual(-1))) != 0){if (hv_Length == null)hv_Length = new HTuple();hv_Length[hv_ZeroLengthIndices] = -1;}////Calculate auxiliary variables.hv_DR.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_DR = (1.0 * (hv_Row2 - hv_Row1)) / hv_Length;}hv_DC.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_DC = (1.0 * (hv_Column2 - hv_Column1)) / hv_Length;}hv_HalfHeadWidth.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_HalfHeadWidth = hv_HeadWidth / 2.0;}////Calculate end points of the arrow head.hv_RowP1.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_RowP1 = (hv_Row1 + ((hv_Length - hv_HeadLength) * hv_DR)) + (hv_HalfHeadWidth * hv_DC);}hv_ColP1.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_ColP1 = (hv_Column1 + ((hv_Length - hv_HeadLength) * hv_DC)) - (hv_HalfHeadWidth * hv_DR);}hv_RowP2.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_RowP2 = (hv_Row1 + ((hv_Length - hv_HeadLength) * hv_DR)) - (hv_HalfHeadWidth * hv_DC);}hv_ColP2.Dispose();using (HDevDisposeHelper dh = new HDevDisposeHelper()){hv_ColP2 = (hv_Column1 + ((hv_Length - hv_HeadLength) * hv_DC)) + (hv_HalfHeadWidth * hv_DR);}//Finally create output XLD contour for each input point pairfor (hv_Index = 0; (int)hv_Index <= (int)((new HTuple(hv_Length.TupleLength())) - 1); hv_Index = (int)hv_Index + 1){if ((int)(new HTuple(((hv_Length.TupleSelect(hv_Index))).TupleEqual(-1))) != 0){//Create_ single points for arrows with identical start and end pointusing (HDevDisposeHelper dh = new HDevDisposeHelper()){ho_TempArrow.Dispose();HOperatorSet.GenContourPolygonXld(out ho_TempArrow, hv_Row1.TupleSelect(hv_Index),hv_Column1.TupleSelect(hv_Index));}}//Create arrow contourelse{using (HDevDisposeHelper dh = new HDevDisposeHelper()){ho_TempArrow.Dispose();HOperatorSet.GenContourPolygonXld(out ho_TempArrow, ((((((((((hv_Row1.TupleSelect(hv_Index))).TupleConcat(hv_Row2.TupleSelect(hv_Index)))).TupleConcat(hv_RowP1.TupleSelect(hv_Index)))).TupleConcat(hv_Row2.TupleSelect(hv_Index)))).TupleConcat(hv_RowP2.TupleSelect(hv_Index)))).TupleConcat(hv_Row2.TupleSelect(hv_Index)),((((((((((hv_Column1.TupleSelect(hv_Index))).TupleConcat(hv_Column2.TupleSelect(hv_Index)))).TupleConcat(hv_ColP1.TupleSelect(hv_Index)))).TupleConcat(hv_Column2.TupleSelect(hv_Index)))).TupleConcat(hv_ColP2.TupleSelect(hv_Index)))).TupleConcat(hv_Column2.TupleSelect(hv_Index)));}}{HObject ExpTmpOutVar_0;HOperatorSet.ConcatObj(ho_Arrow, ho_TempArrow, out ExpTmpOutVar_0);ho_Arrow.Dispose();ho_Arrow = ExpTmpOutVar_0;}}ho_TempArrow.Dispose();hv_Length.Dispose();hv_ZeroLengthIndices.Dispose();hv_DR.Dispose();hv_DC.Dispose();hv_HalfHeadWidth.Dispose();hv_RowP1.Dispose();hv_ColP1.Dispose();hv_RowP2.Dispose();hv_ColP2.Dispose();hv_Index.Dispose();}
}

DrawArrowViewModel

public class DrawArrowViewModel
{#region 字段private MainForm mainForm;                      //操作的窗体private HSmartWindowControl HSImageWindow;      //操作的图像窗口private HWindow window;                         //图像窗口IDprivate HObject hImage = null;                  //图像private HTuple width = new HTuple();            //宽度private HTuple height = new HTuple();           //高度private Thread drawArrowThread = null;          //绘制线程private int pointX = -1;                        //点Xprivate int pointY = -1;                        //点Yprivate string context = string.Empty;          //内容public event EventHandler<string> ContextChanged;   //内容变更事件#endregion/// <summary>/// 构造函数/// </summary>public DrawArrowViewModel(MainForm form){this.mainForm = form;HSImageWindow = form.HSImageWindow;window = HSImageWindow.HalconWindow;mainForm.Btn_DrawArrow.Click += Btn_DrawArrow_Click;mainForm.Btn_LoadImage.Click += Btn_LoadImage_Click;mainForm.MouseWheel += CustomMouseWheel;mainForm.HSImageWindow.HMouseMove += HSImageWindow_HMouseMove;drawArrowThread = new Thread(DrawArrowThreadMethod);}//析构函数、释放资源~ DrawArrowViewModel(){drawArrowThread = null ;window?.Dispose();hImage?.Dispose();width?.Dispose();height?.Dispose();HSImageWindow?.Dispose();}/// <summary>/// 鼠标滚轮缩放图像/// </summary>private void CustomMouseWheel(object sender, MouseEventArgs e){System.Drawing.Point pt = mainForm.Location;int leftBorder = HSImageWindow.Location.X;int rightBorder = HSImageWindow.Location.X + HSImageWindow.Size.Width;int topBorder = HSImageWindow.Location.Y;int bottomBorder = HSImageWindow.Location.Y + HSImageWindow.Size.Height;//判断鼠标指针是否在控件内部if (e.X > leftBorder && e.X < rightBorder && e.Y > topBorder && e.Y < bottomBorder){MouseEventArgs newe = new MouseEventArgs(e.Button, e.Clicks, e.X - pt.X, e.Y - pt.Y, e.Delta);HSImageWindow.HSmartWindowControl_MouseWheel(sender, newe);}}/// <summary>/// 绘制箭头线程方法/// </summary>public void DrawArrowThreadMethod(){HObject ho_Arrow = new HObject();HTuple hv_Row = new HTuple();HTuple hv_Column = new HTuple();try{HOperatorSet.SetColor(window, "blue");HOperatorSet.DrawPoint(window, out hv_Row, out hv_Column);HOperatorSet.SetColor(window, (new HTuple("red")).TupleConcat("green"));GenArrow.Gen_arrow_contour_xld(out ho_Arrow,hv_Row.TupleConcat(hv_Row), hv_Column.TupleConcat(hv_Column),((hv_Row + 200)).TupleConcat(hv_Row),hv_Column.TupleConcat(hv_Column + 200), 5, 5);HOperatorSet.DispObj(ho_Arrow, window);}catch (Exception ex){Debug.Write(ex.ToString());}finally{ho_Arrow.Dispose();hv_Row.Dispose();hv_Column.Dispose();}}/// <summary>/// 鼠标移动显示坐标及所在点的灰度值。/// </summary>private void HSImageWindow_HMouseMove(object sender, HMouseEventArgs e){if (hImage != null){HOperatorSet.CountChannels(hImage, out HTuple hChannels);HTuple grayValue = new HTuple();pointX = Convert.ToInt32(e.X);pointY = Convert.ToInt32(e.Y);if (pointX >= 0 && pointY >= 0&& pointX < width && pointY < height){HOperatorSet.GetGrayval(hImage, pointY, pointX, out grayValue);if (hChannels != null && hChannels == 1){context = $"[X = {pointX},Y = {pointY},Gray = {grayValue.D.ToString("F0")}]";Debug.WriteLine(context);mainForm.Tbx_ImageInfo.Text = context;}else if (hChannels != null && hChannels == 3){context = $"[X = {pointX},Y = {pointY},Gray = {grayValue.D.ToString("F0")}]";Debug.WriteLine(context);mainForm.Tbx_ImageInfo.Text = context;}}}else{context = $"[X = {(int)e.X},Y = {(int)e.Y}]";Debug.WriteLine(context);mainForm.Tbx_ImageInfo.Text = context;}}/// <summary>/// 加载图像的方法/// </summary>private void Btn_LoadImage_Click(object sender, EventArgs e){OpenFileDialog openFile = new OpenFileDialog();openFile.InitialDirectory = "F:\\Image";if (openFile.ShowDialog() == DialogResult.OK){HOperatorSet.ReadImage(out hImage, openFile.FileName);HOperatorSet.DispObj(hImage, window);HOperatorSet.GetImageSize(hImage, out width, out height);}}/// <summary>/// 绘制箭头/// </summary>private void Btn_DrawArrow_Click(object sender, EventArgs e){if (!drawArrowThread.IsAlive){drawArrowThread = new Thread(DrawArrowThreadMethod);drawArrowThread?.Start();}else{drawArrowThread?.Start();}}
}