文章目录
前言
为了更好地去学习WPF+Halcon，我决定去报个班学一下。原因无非是想换个工作。相关的教学视频来源于下方的Up主的提供的教程。这里只做笔记分享，想要源码或者教学视频可以和他联系一下。
相关链接
项目专栏
运行环境
- .net core 8.0
- visual studio 2022
- halcon HDevelop 20.11
- windows 11
匹配图片
WPF导出匹配模板
如何了解Halcon和C#代码的对应关系
我之前的博客上面说过，Halcon是可以进行C# 文档导出的功能的
如果我们对其添加注释，其导出的文件也有添加对应的注释的功能。
所以我们只需要将对应的代码超过了，进行对应的转化即可。
逻辑分析：
读取图片 截取ROI 生成模板 导出模板
添加截取ROI功能
我们之前的抽象封装，还缺少截取ROI的功能，这里我们将ROI截取功能添加上去。
截取ROI对应代码
c
//截取ROI
hv_Row1.Dispose();hv_Column1.Dispose();hv_Row2.Dispose();hv_Column2.Dispose();
HOperatorSet.DrawRectangle1(hv_WindowHandle, out hv_Row1, out hv_Column1, out hv_Row2,
out hv_Column2);
ho_Rectangle.Dispose();
HOperatorSet.GenRectangle1(out ho_Rectangle, hv_Row1, hv_Column1, hv_Row2, hv_Column2);
ho_ImageReduced.Dispose();
HOperatorSet.ReduceDomain(ho_Image, ho_Rectangle, out ho_ImageReduced);基类
csharp
using HalconDotNet;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace HalconExtension.Models
{
public abstract class HObjBase
{
/// <summary>
/// HS组件主题
/// </summary>
public HSmartWindowControlWPF WindowControlWPF { get; set; }
/// <summary>
/// 资源路径
/// </summary>
public string ResourcesPath { get => AppDomain.CurrentDomain.BaseDirectory + "Resources"; }
/// <summary>
/// 导出路径
/// </summary>
public string OutputPath
{
get
{
var path = AppDomain.CurrentDomain.BaseDirectory + "Output";
//如果不存在就创建
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
return path;
}
}
public HDrawingObject DrawingObject { get; set; }
public HImage Image { get; set; }
public HObject ROI = new HObject();
public HObjBase(HSmartWindowControlWPF windowControlWPF, HImage image)
{
WindowControlWPF = windowControlWPF;
Image = image;
}
......其它代码
/// <summary>
/// 截取图片
/// </summary>
public abstract HObject Reduce();
}
}矩形
csharp
using HalconDotNet;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace HalconExtension.Models
{
/// <summary>
/// 矩形封装
/// </summary>
public class HRectangleObj : HObjBase
{
public HTuple HType { get; private set; }
public HTuple Row1 { get; private set; }
public HTuple Row2 { get; private set; }
public HTuple Column1 { get; private set; }
public HTuple Column2 { get; private set; }
/// <summary>
/// 刷新回调
/// </summary>
public Action<HRectangleObj> RefleshCallBack { get; set; }
/// <summary>
/// 初始化构造函数
/// </summary>
/// <param name="windowControlWPF"></param>
/// <param name="row1"></param>
/// <param name="column1"></param>
/// <param name="row2"></param>
/// <param name="column2"></param>
public HRectangleObj(HSmartWindowControlWPF windowControlWPF,HImage hImage, HTuple row1, HTuple column1, HTuple row2, HTuple column2) : base(windowControlWPF, hImage)
{
//WindowControlWPF = windowControlWPF;
Row1 = row1;
Column1 = column1;
Row2 = row2;
Column2 = column2;
DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1, Row1, Column1, Row2, Column2);
//添加更新事件
DrawingObject.OnDrag(Reflash);
DrawingObject.OnResize(Reflash);
}
/// <summary>
/// 默认构造函数
/// </summary>
/// <param name="windowControl"></param>
public HRectangleObj(HSmartWindowControlWPF windowControl,HImage hImage) : this(windowControl,hImage,100,200,300,400)
{
}
......其它代码
/// <summary>
/// 截取图片
/// </summary>
public override HObject Reduce()
{
HObject res = new HObject();
HOperatorSet.GenRectangle1(out ROI, Row1, Column1, Row2, Column2);
HOperatorSet.ReduceDomain(Image, ROI, out res);
return res;
}
}
}圆形
csharp
using HalconDotNet;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace HalconExtension.Models
{
public class HCircleObj : HObjBase
{
public HTuple Row { get; set; }
public HTuple Column { get; set; }
public HTuple Radius { get; set; }
public HTuple HType { get; private set; }
/// <summary>
/// 刷新回调
/// </summary>
public Action<HCircleObj> RefleshCallBack { get; set; }
public HCircleObj(HSmartWindowControlWPF windowControlWPF,HImage hImage, HTuple row, HTuple col, HTuple radius):base(windowControlWPF,hImage)
{
Row = row;
Column = col;
Radius = radius;
DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.CIRCLE, Row, Column, Radius);
//添加更新事件
DrawingObject.OnDrag(Reflash);
DrawingObject.OnResize(Reflash);
}
public HCircleObj(HSmartWindowControlWPF windowControlWPF,HImage hImage) : this(windowControlWPF,hImage,64,64,64)
{
}
......其它代码
/// <summary>
/// 截取图片
/// </summary>
public override HObject Reduce()
{
HObject res = new HObject();
HOperatorSet.GenCircle(out ROI, Row, Column,Radius);
HOperatorSet.ReduceDomain(Image, ROI, out res);
return res;
}
}
}生成导出模板
csharp
/// <summary>
/// 生成匹配模板
/// </summary>
private void InitTemplate()
{
HTuple modelId = new HTuple();
var ho_ImageReduced = RectangleObj.Reduce();
HOperatorSet.CreateShapeModel(ho_ImageReduced, "auto", -0.39, 0.79, "auto", "auto",
"use_polarity", "auto", "auto", out modelId);
//导出匹配模板
HOperatorSet.WriteShapeModel(modelId, RectangleObj.OutputPath+"/output.shm");
MsgHelper.Success($"生成模板成功！路径为:{RectangleObj.OutputPath + "/output.shm"}");
}运行结果：
可能的报错
你的文件路径不存在
Halcon组件无法自动生成文件路径，如果保存的文件夹不存在会抛出异常
你选择的区域的内容有效信息过少
