BaslerCameraBean.cs
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using Basler.Pylon;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static CodeLibrary.BaslerCamera;
namespace CodeLibrary
{
public class BaslerCameraBean
{
public Camera cameraCur = null;
/// <summary>
/// 相机图像宽度
/// </summary>
public int Width { set; get; }
/// <summary>
/// 相机图像高度
/// </summary>
public int Height { set; get; }
/// <summary>
/// 相机32位缓存
/// </summary>
public byte[] Buffer { get; private set; }
/// <summary>
/// 相机32位图像
/// </summary>
public Bitmap Image { get; private set; }
/// <summary>
/// 获取连续图像事件，需要跨线程操作
/// </summary>
public event GrabImageEvent GrabImage;
/// <summary>
/// 错误信息
/// </summary>
public string ErrInfo { set; get; }
public BaslerCameraBean (Camera c)
{
this.cameraCur = c;
}
public BaslerCameraBean (Camera c ,int width,int height)
{
this.cameraCur = c;
this.Width = width;
this.Height = height;
}
public void Open()
{
cameraCur.StreamGrabber.ImageGrabbed += OnImageGrabbed;
//cameraCur.StreamGrabber.GrabStopped += OnGrabStopped;
cameraCur.Open();
int Width = Convert.ToInt32(cameraCur.Parameters[PLCamera.Width].GetValue());
int Height = Convert.ToInt32(cameraCur.Parameters[PLCamera.Height].GetValue());
cameraCur.Parameters[PLCamera.UserSetSelector].SetValue(PLCamera.UserSetSelector.UserSet1); //加载用户设置1
bool bln = cameraCur.Parameters[PLCamera.UserSetLoad].TryExecute(); //执行设置
}
/// <summary>
/// 关闭当前相机
/// </summary>
public void Close()
{
if (cameraCur != null)
{
cameraCur.Close();
cameraCur.Dispose();
cameraCur = null;
}
}
/// <summary>
/// 停止抓取数据
/// </summary>
public void Stop()
{
if (cameraCur != null)
cameraCur.StreamGrabber.Stop();
}
/// <summary>
/// 抓取一张图像
/// </summary>
public Bitmap GrabOne()
{
cameraCur.Parameters[PLCamera.AcquisitionMode].SetValue(PLCamera.AcquisitionMode.SingleFrame);
//cameraCur.StreamGrabber.Start();
//IGrabResult grabResult = cameraCur.StreamGrabber.RetrieveResult(5000, TimeoutHandling.ThrowException);
IGrabResult grabResult = cameraCur.StreamGrabber.GrabOne(5000);
if (!grabResult.IsValid) return null ;
Image = new Bitmap(grabResult.Width, grabResult.Height, PixelFormat.Format32bppRgb);
BitmapData bmpData = Image.LockBits(new Rectangle(0, 0, grabResult.Width, grabResult.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppRgb);
IntPtr ptrBmp = bmpData.Scan0;
int picSize = bmpData.Stride * grabResult.Height;
PixelDataConverter conv = new PixelDataConverter();
conv.OutputPixelFormat = PixelType.BGRA8packed;
conv.Convert(ptrBmp, picSize, grabResult);
Buffer = new byte[picSize];
System.Runtime.InteropServices.Marshal.Copy(ptrBmp, Buffer, 0, picSize);
Image.UnlockBits(bmpData);
return Image;
//cameraCur.StreamGrabber.Stop();
}
/// <summary>
/// 抓取连续图像，触发GrabImage事件
/// </summary>
public void GrabContinuous()
{
cameraCur.Parameters[PLCamera.AcquisitionMode].SetValue(PLCamera.AcquisitionMode.Continuous);
cameraCur.StreamGrabber.Start(GrabStrategy.OneByOne, GrabLoop.ProvidedByStreamGrabber);
}
private void OnImageGrabbed(object sender, ImageGrabbedEventArgs e)
{
try
{
IGrabResult grabResult = e.GrabResult;
if (!grabResult.IsValid) return;
Image = new Bitmap(grabResult.Width, grabResult.Height, PixelFormat.Format32bppRgb);
BitmapData bmpData = Image.LockBits(new Rectangle(0, 0, grabResult.Width, grabResult.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppRgb);
IntPtr ptrBmp = bmpData.Scan0;
int picSize = bmpData.Stride * grabResult.Height;
PixelDataConverter conv = new PixelDataConverter();
conv.OutputPixelFormat = PixelType.BGRA8packed;
conv.Convert(ptrBmp, picSize, grabResult);
Buffer = new byte[picSize];
System.Runtime.InteropServices.Marshal.Copy(ptrBmp, Buffer, 0, picSize);
Image.UnlockBits(bmpData);
GrabImage?.Invoke();
}
catch (Exception ex)
{
ErrInfo = ex.Message;
}
finally
{
e.DisposeGrabResultIfClone();
}
}
}
}