Stepan Kostusiev's profile - activity

Map frame never exist before. I broadcast map -> odom when init node. When i use frameExists, map frame not exists. But in rqt_tf_tree it exists and connected to odom. Where can be problem?

    self.tf_broadcaster = tf.TransformBroadcaster()
    self.tf_listener = tf.TransformListener()

    self.tf_broadcaster.sendTransform((5.0, 3.0, 0.0),
        tf.transformations.quaternion_from_euler(0.0, 0.0, 0.0),
        rospy.Time.now(),
        "odom",
        "map")

    #This condition never True. 
    if self.tf_listener.frameExists("odom") and self.tf_listener.frameExists("map"):
        rospy.loginfo("transform exist!")
        t = self.tf_listener.getLatestCommonTime("odom", "map")
        position, quaternion = self.tf_listener.lookupTransform("odom", "map", t)
        print position, quaternion
        print("!!!!!!!!!")

Edit 1:

Main goal of my node to improve robot localization odometry based on imu and encoders. I calculated new position of robot in map frame. And want somehow to transform odometry frame respect to map frame.

My actual global localization node, where i want to use tf.

Bag file in which I test my node.

Output of rqt_tf_tree.

Do you fixed your problem? I have the same.

The robot does not follow path proper if goal in /map frame Hello, I'm running ROS Kinetic in Ubuntu 16.04 on Lattepanda

How to add parent frame map? Map not exists. Map frame never exist before. I broadcast map -> odom when init node. Wh

Thank you for answer. I try to add waits and broadcast this transform from other node, but it is no effect. I add my nod

How to add parent frame map? Map not exists. Map frame never exist before. I broadcast map -> odom when init node. Wh

How to add parent frame map? Map not exists. Map frame never exist before. I broadcast map -> odom when init node. Wh

How to add parent frame map? Map not exists. Map frame never exist before. I broadcast map -> odom when init node. Wh

MapViz already support NavSatFix. Use navsat plugin in mapviz.

To get lat/lon from Point Click Publisher you can set frame: /wgs84

You can use Mapviz with plugin Point Click Publisher. To set your goal to Navigation Stack you can use gps_goal. But P

You can use Mapviz with plugin Point Click Publisher. To set your goal to Navigation Stack you can use gps_goal. But P

I read tutorial about GUI nodes in book Learning Robotics using Python. They use qt_creator. But using Python, not C++