利用pcl::ExtractIndices编写一段代码,要求提取出给定指数对应点点云以外的点
时间: 2024-02-24 19:57:16 浏览: 89
好的,我可以为您编写一段利用pcl::ExtractIndices提取给定指数对应点点云以外点的代码,代码如下:
```c++
#include <pcl/point_types.h>
#include <pcl/filters/extract_indices.h>
typedef pcl::PointXYZ PointT;
typedef pcl::PointCloud<PointT> PointCloud;
int main()
{
// 初始化点云
PointCloud::Ptr cloud(new PointCloud);
cloud->width = 5;
cloud->height = 1;
cloud->points.resize(cloud->width * cloud->height);
for (size_t i = 0; i < cloud->points.size(); ++i)
{
cloud->points[i].x = 1024 * rand() / (RAND_MAX + 1.0f);
cloud->points[i].y = 1024 * rand() / (RAND_MAX + 1.0f);
cloud->points[i].z = 1024 * rand() / (RAND_MAX + 1.0f);
}
// 初始化索引
std::vector<int> indices(2);
indices[0] = 0;
indices[1] = 2;
// 提取指定索引对应的点
pcl::ExtractIndices<PointT> extract;
extract.setInputCloud(cloud);
extract.setIndices(boost::make_shared<const pcl::PointIndices>(indices));
extract.setNegative(false);
PointCloud::Ptr output(new PointCloud);
extract.filter(*output);
// 提取指定索引以外的点
pcl::ExtractIndices<PointT> extract_outliers;
extract_outliers.setInputCloud(cloud);
extract_outliers.setIndices(boost::make_shared<const pcl::PointIndices>(indices));
extract_outliers.setNegative(true);
PointCloud::Ptr outliers(new PointCloud);
extract_outliers.filter(*outliers);
// 输出结果
std::cout << "原始点云大小: " << cloud->size() << std::endl;
std::cout << "指定索引对应的点: " << output->size() << std::endl;
std::cout << "指定索引以外的点: " << outliers->size() << std::endl;
return 0;
}
```
在这个代码中,我们首先生成一个随机的点云数据,然后指定一些索引值,使用pcl::ExtractIndices提取出指定索引对应的点,然后再使用pcl::ExtractIndices提取出指定索引以外的点。最后输出结果,包括原始点云大小、指定索引对应的点和指定索引以外的点的数量。
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