目录

前言

一、检测要求

二、步骤

1.在CogToolBlock工具里添加检测工具

2.找圆

 3.Bolb分析

 4.结果处理

 5.卡尺找齿顶边

 6.测量距离

7.编辑C#脚本，循环检测并显示

三、总结

---

前言

visionpro中可以结合C#脚本进行检测，这可以更简洁全面的去实现复杂的检测功能，当然结果C#软件二次开发更加全面，不过有时外面还是直接在工具块里面添加脚本更方便些。

---

一、检测要求

     检测齿数及齿端到中心的距离。

 

二、步骤

1.在CogToolBlock工具里添加检测工具

1.CogFindCircleTool是一个找圆工具，主要是找到齿轮外径及圆心。
2.CogBlobTool是一般二值化分析工具，主要是找到每个齿的位置，角度。
3.CogResultsAnalysisTool，结果处理工具，主要是给卡尺工具算出角度。
4.CogCaliperTool，卡尺工具，用于找齿顶边。
5.CogDistancePointPointTool，测量点到点工具，用于测量距离。

2.找圆

        在找圆时，卡尺可以大一点，然后卡尺计分添加一个PositionNeg的算法，找最外面位置，否则圆会小一点。

 

 3.Bolb分析

        在找圆工具中可以得到圆心，半径，把他们输出出来给到bolb工具的区域对应参数。

然后再修改工具里面的径向缩放，角度范围参数。

 然后，通过面积管控排除一些毛刺，去除影响。

 

 4.结果处理

        结果处理blob得到的对应区域的角度。使卡尺角度摆正。

 5.卡尺找齿顶边

        通过blob给卡尺位置角度。

 

 

 6.测量距离

测量圆心到齿顶距离

7.编辑C#脚本，循环检测并显示

        脚本采用复杂脚本，简单脚本功能限制。

#region namespace imports
using System;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro3D;
using Cognex.VisionPro.Caliper;
using Cognex.VisionPro.Blob;
using Cognex.VisionPro.ResultsAnalysis;
using Cognex.VisionPro.Dimensioning;
#endregion

public class CogToolBlockAdvancedScript : CogToolBlockAdvancedScriptBase
{
  #region Private Member Variables
  //声明
  private Cognex.VisionPro.ToolBlock.CogToolBlock mToolBlock;
  private Cognex.VisionPro.Blob.CogBlobTool mCogBlob;
  private Cognex.VisionPro.Caliper.CogCaliperTool mCogCaliper;
  private Cognex.VisionPro.Caliper.CogFindCircleTool mCogFindCircle;
  private CogGraphicCollection labels;
  private CogGraphicLabel myLabel;
  #endregion

  /// <summary>
  /// Called when the parent tool is run.
  /// Add code here to customize or replace the normal run behavior.
  /// </summary>
  /// <param name="message">Sets the Message in the tool's RunStatus.</param>
  /// <param name="result">Sets the Result in the tool's RunStatus</param>
  /// <returns>True if the tool should run normally,
  ///          False if GroupRun customizes run behavior</returns>
  public override bool GroupRun(ref string message, ref CogToolResultConstants result)
  {
    // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    // #if DEBUG
    // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    // #endif


    // Run each tool using the RunTool function
    foreach(ICogTool tool in mToolBlock.Tools)
      mToolBlock.RunTool(tool, ref message, ref result);
    //初始化
    mCogBlob = mToolBlock.Tools["CogBlobTool1"] as CogBlobTool;
    mCogCaliper = mToolBlock.Tools["CogCaliperTool1"] as CogCaliperTool;
    mCogFindCircle = mToolBlock.Tools["CogFindCircleTool1"] as CogFindCircleTool;    
    mCogFindCircle.Run();
    mCogBlob.Run();
    int x = 0;
    int y = 0;
    //循环
    for (int i = 0; i < mCogBlob.Results.GetBlobs().Count; i++)
    {
      //卡尺
      mCogCaliper.Region.CenterX = mCogBlob.Results.GetBlobs()[i].CenterOfMassX;
      mCogCaliper.Region.CenterY = mCogBlob.Results.GetBlobs()[i].CenterOfMassY;
      mCogCaliper.Region.Rotation = mCogBlob.Results.GetBlobs()[i].Angle+1.2;
      mCogCaliper.Run();
      //测量
      CogDistancePointPointTool mCogDistancePointPoint = new CogDistancePointPointTool();
      mCogDistancePointPoint.InputImage = mToolBlock.Inputs[0].Value as CogImage8Grey;
      mCogDistancePointPoint.StartX = mCogCaliper.Results[0].Edge0.PositionX;
      mCogDistancePointPoint.StartY = mCogCaliper.Results[0].Edge0.PositionY;
      mCogDistancePointPoint.EndX = mCogFindCircle.Results.GetCircle().CenterX;
      mCogDistancePointPoint.EndY = mCogFindCircle.Results.GetCircle().CenterY;
      mCogDistancePointPoint.Run();
      //显示保存
      myLabel = new CogGraphicLabel();
      x = (i % 5) * 200+100;
      y = (i / 5) * 50 + 150;
      myLabel.SetXYText(x, y, "距离:" + mCogDistancePointPoint.Distance.ToString("f3"));
      myLabel.SelectedSpaceName = "@";
      myLabel.Font = new Font("微软黑体", 10);
      myLabel.Color = Cognex.VisionPro.CogColorConstants.Blue;
      labels.Add(myLabel);
    }
    
    return true;
  }

  #region When the Current Run Record is Created
  /// <summary>
  /// Called when the current record may have changed and is being reconstructed
  /// </summary>
  /// <param name="currentRecord">
  /// The new currentRecord is available to be initialized or customized.</param>
  public override void ModifyCurrentRunRecord(Cognex.VisionPro.ICogRecord currentRecord)
  {
  }
  #endregion

  #region When the Last Run Record is Created
  /// <summary>
  /// Called when the last run record may have changed and is being reconstructed
  /// </summary>
  /// <param name="lastRecord">
  /// The new last run record is available to be initialized or customized.</param>
  public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    //显示
    foreach (ICogGraphic graphic in labels)
    {
      mToolBlock.AddGraphicToRunRecord(graphic, lastRecord, "CogFindCircleTool1.InputImage", "script");
    }
    labels.Clear();
    CogGraphicLabel label = new CogGraphicLabel();
    label.SetXYText(160, 50, "齿数:" + mCogBlob.Results.GetBlobs().Count.ToString());
    label.SelectedSpaceName = "@";
    label.Font = new Font("微软黑体", 10);
    label.Color = Cognex.VisionPro.CogColorConstants.Blue;
    mToolBlock.AddGraphicToRunRecord(label, lastRecord, "CogFindCircleTool1.InputImage", "script");
    
  }
  #endregion

  #region When the Script is Initialized
  /// <summary>
  /// Perform any initialization required by your script here
  /// </summary>
  /// <param name="host">The host tool</param>
  public override void Initialize(Cognex.VisionPro.ToolGroup.CogToolGroup host)
  {
    // DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    base.Initialize(host);
    //实例化
    this.mCogBlob = new CogBlobTool();
    this.mCogCaliper = new CogCaliperTool();
    this.mCogFindCircle = new CogFindCircleTool();
    this.labels = new CogGraphicCollection();
    // Store a local copy of the script host
    this.mToolBlock = ((Cognex.VisionPro.ToolBlock.CogToolBlock)(host));
  }
  #endregion

}

三、总结

对于要编辑很多工具的测量，采取脚本循环可以节省大量的时间，主要思路是找出每个节点，以及结果处理。

运行结果：