学习pcl的同胞们求指点？ConditionalRemoval对重载函数的调用不明确

Question

```#include
#include
#include
#include

int
main(int argc, char** argv)
{
if (argc != 2)
{
std::cerr << "please specify command line arg '-r' or '-c'" << std::endl;
exit(0);
}
pcl::PointCloudpcl::PointXYZ::Ptr cloud(new pcl::PointCloudpcl::PointXYZ);
pcl::PointCloudpcl::PointXYZ::Ptr cloud_filtered(new pcl::PointCloudpcl::PointXYZ);

// Fill in the cloud data
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);
}

if (strcmp(argv[1], "-r") == 0){
    pcl::RadiusOutlierRemoval<pcl::PointXYZ> outrem;
    // build the filter
    outrem.setInputCloud(cloud);
    outrem.setRadiusSearch(0.8);
    outrem.setMinNeighborsInRadius(2);
    // apply filter
    outrem.filter(*cloud_filtered);
}
else if (strcmp(argv[1], "-c") == 0){
    // build the condition
    pcl::ConditionAnd<pcl::PointXYZ>::Ptr range_cond(new
        pcl::ConditionAnd<pcl::PointXYZ>());
    range_cond->addComparison(pcl::FieldComparison<pcl::PointXYZ>::ConstPtr(new
        pcl::FieldComparison<pcl::PointXYZ>("z", pcl::ComparisonOps::GT, 0.0)));
    range_cond->addComparison(pcl::FieldComparison<pcl::PointXYZ>::ConstPtr(new
        pcl::FieldComparison<pcl::PointXYZ>("z", pcl::ComparisonOps::LT, 0.8)));
    // build the filter
    pcl::ConditionalRemoval<pcl::PointXYZ> condrem(range_cond);
    condrem.setInputCloud(cloud);
    condrem.setKeepOrganized(true);
    // apply filter
    condrem.filter(*cloud_filtered);
}
else{
    std::cerr << "please specify command line arg '-r' or '-c'" << std::endl;
    exit(0);
}
std::cerr << "Cloud before filtering: " << std::endl;
for (size_t i = 0; i < cloud->points.size(); ++i)
    std::cerr << "    " << cloud->points[i].x << " "
    << cloud->points[i].y << " "
    << cloud->points[i].z << std::endl;
// display pointcloud after filtering
std::cerr << "Cloud after filtering: " << std::endl;
for (size_t i = 0; i < cloud_filtered->points.size(); ++i)
    std::cerr << "    " << cloud_filtered->points[i].x << " "
    << cloud_filtered->points[i].y << " "
    << cloud_filtered->points[i].z << std::endl;
return (0);

}

错误 1 error C2668: “pcl::ConditionalRemovalpcl::PointXYZ::ConditionalRemoval”: 对重载函数的调用不明确 f:\vs2013projects\remove_outliers\remove_outliers\源.cpp 47 1 remove_outliers

Answer 1

自己找一下ConditionalRemoval函数，看看有几种实现。
你传入的参数同时满足至少2个ConditionalRemoval，编译器无法区分究竟是调用哪个