基于pcl库遍历出pclPointIndices newIndices1;内的数据的c++代码

以下是基于pcl库遍历出pcl::PointIndices newIndices1内的数据的C++代码示例：

#include <pcl/point_types.h>
#include <pcl/point_cloud.h>
#include <pcl/point_indices.h>

int main()
{
    // 创建一个点云数据
    pcl::PointCloud<pcl::PointXYZ>::Ptr cloud(new pcl::PointCloud<pcl::PointXYZ>);
    cloud->width = 100;
    cloud->height = 1;
    cloud->points.resize(cloud->width * cloud->height);
    
    for (size_t i = 0; i < cloud->points.size(); ++i)
    {
        cloud->points[i].x = static_cast<float>(i);
        cloud->points[i].y = static_cast<float>(i);
        cloud->points[i].z = static_cast<float>(i);
    }
    
    // 创建一个PointIndices对象并添加一些索引
    pcl::PointIndices newIndices1;
    newIndices1.indices.push_back(1);
    newIndices1.indices.push_back(3);
    newIndices1.indices.push_back(5);
    
    // 遍历newIndices1内的索引并输出对应的点坐标
    for (size_t i = 0; i < newIndices1.indices.size(); ++i)
    {
        int index = newIndices1.indices[i];
        pcl::PointXYZ point = cloud->points[index];
        std::cout << "Point at index " << index << ": (" << point.x << ", " << point.y << ", " << point.z << ")" << std::endl;
    }
    
    return 0;
}

这段代码首先创建了一个点云数据，然后创建了一个pcl::PointIndices对象newIndices1，并向其中添加了一些索引。接下来，代码遍历了newIndices1内的索引，并根据索引获取对应的点坐标，并输出到控制台