VisionPro 编写二维码识别Quickbuild工程

编写作业如图所示，本文采用的是读取本地二维码，由于没有相机所以只能够选择读取本地二维码。

当然需要利用Cog2DSymbolTool1工具对二维码进行训练。

C#脚本代码中添加变量：

 private Cog2DSymbolTool Cog2DSymbolToolObject;
 private string DecodedString;

C#脚本构造函数GroupRun中添加如下代码：

Cog2DSymbolToolObject = (Cog2DSymbolTool) toolGroup.Tools["Cog2DSymbolTool1"];
    DecodedString = Cog2DSymbolToolObject.Result.DecodedString;
    
MessageBox.Show("二维码解码信息：" + DecodedString);  //用于弹出对话框

C#脚本构造函数ModifyLastRunRecord添加代码如下：

public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    CogGraphicLabel ResultLabel = new CogGraphicLabel();
    ResultLabel.SetXYText(300 / 2, 300 / 2, DecodedString);
    ResultLabel.Color = Cognex.VisionPro.CogColorConstants.Blue;
    toolGroup.AddGraphicToRunRecord(ResultLabel,lastRecord,"Image Source.OutputImage","script");
  }

完成代码如下：

using System;
using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro3D;
using Cognex.VisionPro.ToolGroup;
using Cognex.VisionPro.TwoDSymbol;
 
public class UserScript : CogToolGroupBaseScript
{
  private Cog2DSymbolTool Cog2DSymbolToolObject;
  private string DecodedString;
 
  // The GroupRun function is called when the tool group is run.  The default
  // implementation provided here is equivalent to the normal behavior of the
  // tool group.  Modifying this function will allow you to change the behavior
  // when the tool group is run.
  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 in the tool group using the RunTool function
    for (Int32 toolIdx = 0; toolIdx < toolGroup.Tools.Count; toolIdx++)
      toolGroup.RunTool(toolGroup.Tools[toolIdx], ref message, ref result);
    
    Cog2DSymbolToolObject = (Cog2DSymbolTool) toolGroup.Tools["Cog2DSymbolTool1"];
    DecodedString = Cog2DSymbolToolObject.Result.DecodedString;
    
    MessageBox.Show("二维码解码信息：" + DecodedString);
 
    // Returning False indicates we ran the tools in script, and they should not be
    // run by VisionPro 
    return false;
  }
 
#region "When the Current Run Record is Created"
  public override void ModifyCurrentRunRecord(Cognex.VisionPro.ICogRecord currentRecord)
  {
  }
#endregion
 
#region "When the Last Run Record is Created"
  // Allows you to add or modify the contents of the last run record when it is
  // created.  For example, you might add custom graphics to the run record here.
  public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    CogGraphicLabel ResultLabel = new CogGraphicLabel();
    ResultLabel.SetXYText(300 / 2, 300 / 2, DecodedString);
    ResultLabel.Color = Cognex.VisionPro.CogColorConstants.Blue;
    toolGroup.AddGraphicToRunRecord(ResultLabel,lastRecord,"Image Source.OutputImage","script");
  }
#endregion
 
#region "When the Script is Initialized"
  // Perform any initialization required by your script here
  public override void Initialize(CogToolGroup host)
  {
    // DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    base.Initialize(host);
  }
#endregion
 
}