using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.IO;
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using HalconDotNet;
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using System.ComponentModel;
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namespace HalconTools
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{
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public delegate void ContourDelegate(object sender, HImage image, ContourResult result);
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public class ContourAssistant
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{
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public event ContourDelegate ContourDone;
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/// <summary>HALCON image used for .</summary>
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public HImage mImage;
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public int mWidth;
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public int mHeight;
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public HWndCtrl viewController;
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public ROIController roiController;
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public ContourParam mContourPara = new ContourParam();
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public HObject mObject;
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public HObject mThresholdObj;
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public HObject mSelectObj;
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public ContourResult mContourResult = new ContourResult();
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public ContourAssistant()
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{
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initObj();
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}
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public ContourAssistant(HWindowControl viewPort)
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{
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viewController = new HWndCtrl(viewPort);
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roiController = new ROIController();
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initObj();
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}
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public void initObj()
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{
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HOperatorSet.GenEmptyObj(out mObject);
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mObject.Dispose();
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HOperatorSet.GenEmptyObj(out mThresholdObj);
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mThresholdObj.Dispose();
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HOperatorSet.GenEmptyObj(out mSelectObj);
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mSelectObj.Dispose();
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}
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public bool SetImage(string filename)
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{
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string tmp;
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try
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{
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mImage = new HImage(filename);
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mImage.GetImagePointer1(out tmp, out mWidth, out mHeight);
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}
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catch (HOperatorException e)
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{
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mImage = null;
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return false;
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}
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return true;
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}
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public bool SetImage(HImage image)
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{
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string tmp;
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try
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{
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mImage = image;
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mImage.GetImagePointer1(out tmp, out mWidth, out mHeight);
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}
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catch (HOperatorException e)
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{
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mImage = null;
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return false;
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}
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return true;
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}
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public HImage GetImage()
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{
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return mImage;
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}
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/// <summary>
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/// Writes the new image to graphic window
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/// </summary>
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public void UpdateImage()
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{
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viewController.resetAll();
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viewController.useROIController(roiController);
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viewController.setViewState(HWndCtrl.MODE_VIEW_NONE);
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viewController.addIconicVar(mImage);
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viewController.repaint();
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}
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public void UpdateObj(HObject obj)
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{
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viewController.resetAll();
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viewController.useROIController(roiController);
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viewController.setViewState(HWndCtrl.MODE_VIEW_NONE);
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viewController.changeGraphicSettings(GraphicsContext.GC_COLOR, "blue");
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viewController.changeGraphicSettings(GraphicsContext.GC_LINEWIDTH, 1);
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viewController.addIconicVar(obj);
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viewController.repaint();
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}
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public void UpdateObj(HObject obj, string color)
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{
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viewController.resetAll();
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viewController.useROIController(roiController);
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viewController.setViewState(HWndCtrl.MODE_VIEW_NONE);
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viewController.changeGraphicSettings(GraphicsContext.GC_COLOR, color);
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viewController.changeGraphicSettings(GraphicsContext.GC_LINEWIDTH, 1);
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viewController.addIconicVar(obj);
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viewController.repaint();
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}
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public void SetPara(ContourParam para)
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{
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this.mContourPara.AreaMax = para.AreaMax;
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this.mContourPara.AreaMin = para.AreaMin;
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this.mContourPara.ThresholdMax = para.ThresholdMax;
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this.mContourPara.ThresholdMin = para.ThresholdMin;
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this.mContourPara.SelectObj = para.SelectObj;
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}
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/// <summary>
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/// 二值化图像
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/// </summary>
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/// <param name="image">图像</param>
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/// <returns></returns>
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public HObject ThresholdObj(HImage image)
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{
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HObject tmpObj;
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HOperatorSet.GenEmptyObj(out tmpObj);
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tmpObj.Dispose();
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HOperatorSet.Threshold(image, out tmpObj, mContourPara.ThresholdMin, mContourPara.ThresholdMax);
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return tmpObj;
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}
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/// <summary>
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/// 根据面积剔除物体
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public HObject SelectObj(HObject obj)
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{
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HObject tmpObj1, tmpObj2;
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//先将物体分开
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HOperatorSet.GenEmptyObj(out tmpObj1);
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tmpObj1.Dispose();
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HOperatorSet.Connection(obj, out tmpObj1);
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//选择物体
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HOperatorSet.GenEmptyObj(out tmpObj2);
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tmpObj2.Dispose();
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HOperatorSet.SelectShape(tmpObj1, out tmpObj2, "area", "and", mContourPara.AreaMin, mContourPara.AreaMax);
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return tmpObj2;
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}
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/// <summary>
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/// 根据序号选择物体
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public HObject Select(HObject obj)
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{
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HObject tmpObj;
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HOperatorSet.GenEmptyObj(out tmpObj);
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tmpObj.Dispose();
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HOperatorSet.SelectObj(obj, out tmpObj, mContourPara.SelectObj);
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return tmpObj;
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}
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public void Run()
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{
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mThresholdObj = ThresholdObj(mImage);
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mSelectObj = SelectObj(mThresholdObj);
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if (mSelectObj.CountObj() == 0) return;
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mObject = Select(mSelectObj);
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mContourResult.mObject = mObject;
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//获得各种结果
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HTuple Area = null, Row = null, Col = null, hv_Rows1 = null, hv_Columns1 = null;
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HOperatorSet.AreaCenter(mObject, out Area, out Row, out Col);
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mContourResult.mArea = Area;
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mContourResult.center_Row = Row;
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mContourResult.center_Column =Col;
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HOperatorSet.GetRegionContour(mObject, out hv_Rows1, out hv_Columns1);
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mContourResult.hv_Columns = hv_Columns1;
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mContourResult.hv_Rows = hv_Rows1;
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if (ContourDone != null)
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{
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ContourDone(this, mImage, mContourResult);
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}
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}
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}
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}
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