一、右击解决方案，添加，新建项目，生成.net类库文件
在Class1.cs中写入如下代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
namespace sharpvtkdll
{
public class Class1
{
//class pcdFile
//{ //dll路径
[DllImport("PCLdll.dll", EntryPoint = "loadPCDFile", CharSet = CharSet.Auto)]
public static extern int loadPCDFile([MarshalAs(UnmanagedType.LPStr)] string str, double[] arr_X, double[] arr_Y, double[] arr_Z);
[DllImport("PCLdll.dll", EntryPoint = "Size", CharSet = CharSet.Auto)]
public static extern int Size([MarshalAs(UnmanagedType.LPStr)] string msg);
[DllImport("PCLdll.dll", EntryPoint = "Cloud_Visual", CharSet = CharSet.Auto)]
public static extern int Cloud_Visual([MarshalAs(UnmanagedType.LPStr)] string msg);
[DllImport("PCLdll.dll", EntryPoint = "PassThoughPCDFile", CharSet = CharSet.Auto)]
public static extern int PassThoughPCDFile([MarshalAs(UnmanagedType.LPStr)] string str, float[] arr_X, float[] arr_Y, float[] arr_Z);
[DllImport("PCLdll.dll", EntryPoint = "ECFC", CharSet = CharSet.Auto)]
public static extern int ECFC([MarshalAs(UnmanagedType.LPStr)] float a, float b, float c);
public bool LoadFile(string strFile, ref double[] arr_X, ref double[] arr_Y, ref double[] arr_Z)
{
loadPCDFile(strFile, arr_X, arr_Y, arr_Z);
return true;
}
public int PcdSize(string strFile)
{
int size = Size(strFile);
return size;
}
public bool Cloud_visual(string strFile)
{
Cloud_Visual(strFile);
return true;
}
public bool PassThoughPCD(string strFile, ref float[] arr_X, ref float[] arr_Y, ref float[] arr_Z)
{
PassThoughPCDFile(strFile, arr_X, arr_Y, arr_Z);
return true;
}
}
}
二、 右击项目，点击生成，即在文件夹下生成相应的dll文件
