Node does not subscribed multipletopics

asked 2016-10-04 11:23:24 -0600

alby941
1 ●1 ●1

Hi all, I have the following situation: have a constructor

unionNode() {

//publish a marker of the reconstructed object
marker_pub= n.advertise<visualization_msgs::Marker>("final_marker_visual", 1);
sub_bounding=n.subscribe<yolo_cropper::bb>("/bounding_coordinates",10,&unionNode::bbCallback,this);
yolo_Img=n.subscribe<sensor_msgs::Image>("/yolo_show",10,&unionNode::yoloCallback,this);
sub_depth = n.subscribe<sensor_msgs::Image>("/dmde/depth",10,&unionNode::depthCallback,this);
f=400;
Cx=376;
Cy=240;

    std::cout<<"Constructor Builded"<<std::endl;}

where the node must subscribe itself to the three topics above described. I tried also with the Synchronizer message filter tools, but with the same problem.

When I run main:

int main(int argc, char **argv){
ros::init(argc, argv, "union");
unionNode();
ros::spin();}

I see "constructor builded" text... but if I open rqt_grap or rosnode_info I see my node Union is not subscribed to any topics... What should it be? The 3 topics are active , I v seen with rostopic echo... Thanks

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Comments

I don't see a ros::NodeHandle anywhere in your code, but you're obviously creating one somewhere. Note that if all of your NodeHandles go out of scope, roscpp will stop and all of your subscribers will stop.