在类里面实现ros的subscribe或message_filter的回调遇到的坑_no matching function for call to 鈥榬os::nodehandle:

作者：木道寻08 | 2024-07-12 11:36:29

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no matching function for call to 鈥榬os::nodehandle::subscribe(const char [21

坑1：没有在ros的subscribe的输入参数里写上这个类对应的指针，也就是this关键词。

Segmentator{
public:
void run(){
pub = nh2.advertise<sensor_msgs::PointCloud2>("/cloud_without_floor", 1000);
sub = nh.subscribe("/camera/stream/1/cloud", 1000, &Segmentator::chatterCallback);}

private:

void chatterCallback(const sensor_msgs::PointCloud2ConstPtr &msg){...}

报错：error: no matching function for call to 'ros::NodeHandle::subscribe(const char [23], int, void (Segmentator::*)(const PointCloud2ConstPtr&))'
sub = nh.subscribe("/camera/stream/1/cloud", 1000, &Segmentator::chatterCallback);

办法：sub = nh.subscribe("/camera/stream/1/cloud", 1000, &Segmentator::chatterCallback);} ->

sub = nh.subscribe("/camera/stream/1/cloud", 1000, &Segmentator::chatterCallback, this);}

坑

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