Eruditass's profile - activity

It looks this was a bug and recently fixed.

It appears possible to sort by every column by clicking on them except the order received column (far left). Sorting by Time does when there are a lot of messages due to the precision of the timer.

Saving to .csv appears to sort by how the console is sorting them, and removing the .config/ros.org/rqt_gui.ini does not reset it.

How do I reset rqt_console to sort by order received?

I have a machine that had ROS groovy installed but was not rosdep initialized/updated. The machine does not have internet access. I have nodes and nodelets on the machine, and the nodes will run but the nodelets complain about rosdep not being initialized. rospack profile does not help.

How can I initialize and update rosdep rospack_cache / rosstack_cache correctly?

This file did not work.

@StFS: We have the same issue with devices on separate USB 2 and USB 3 busses that is solved when they are on the same bus. Of course for contention, we'd like to keep them on separate busses. Did you ever have any correspondence with Point Grey about this?

When running a simple UDPROS throttle topic_tools, when a packet is dropped in the middle of the message, it looks like it complains but doesn't recover. I expected it to complain and then skip to the next message, but it looks like it keeps looking for the same packet number, even in the next message. Then in the rosnode info, it appears to drop the connection entirely and give up and I have to restart the node.

This is occuring on fuerte and electric.

I'm trying to create a lazy subscriber in python and am having issues getting the peer_unsubscribe function to get called. When I echo the topic, I get the msg telling me I have 1 sub, but when I kill the echo, I don't get the unsub. If I do it again, I get 2 listeners. Only when I kill the node do I get the unsub messages. What am I doing wrong?

class mySubscribeListener(rospy.SubscribeListener):
    def peer_subscribe(self, topic_name, topic_publish, peer_publish):
        global _pub
        print("got sub, I have %d"%_pub.get_num_connections())

    def peer_unsubscribe(self, topic_name, num_peers):
        print("got unsub")

rospy.init_node('test')
global _pub
_pub = rospy.Publisher(topic, myMsg, mySubscribeListener())
rospy.spin()

I see how to subscribe to a message to get arrays as numpy arrays, but is there a way to read from a bag file and get numpy arrays?

This does not work:

import rosbag
bag = rosbag.Bag('bag.bag')
from rospy.numpy_msg import numpy_msg

msgs = bag.read_messages(topics=['blah'])
msg = numpy_msg(msgs.next())

TypeError: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

Discovered that the ROS relay has the unreliable option built in, so at least we won't have to write our own relay.

Is there an option for rviz to subscribe to topics via UDP? On our diagnostics side, we have an unreliable connection but would love to get some info out.

Is there an alternative to writing an echo node that subscribes via UDP then relays it to a topic for rviz to open up?

Hmm, I can't seem to comment, but...

I'm using the stock fuerte install and am having this same linker error to the same function. This function, however, works fine:

void    transformPointCloud (const std::string &target_frame, const tf::Transform &net_transform, const sensor_msgs::PointCloud2 &in, sensor_msgs::PointCloud2 &out)
    Transform a sensor_msgs::PointCloud2 dataset from its frame to a given TF target frame.

My pcl_ros stack is built and the libpcl_ros_tf.so is there and being linked in to cmake, so I really have no idea what's going on. I've open up the files and verified the function and remade that directory. Did you find out what the problem was?

I see your ticket here but trac is down.