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Hi there, I am trying to write visualization markers (import visualization_msgs.Marker) onto a file however I get an error - and I believe the error is because Marker does not implement Serializable.
Is there any way of getting around this :/?
Thank you, really appreciate it
P.S. im trying to store the markers onto a file and then use the markers for later
What do you mean with "implements serializable"? The Marker type is of course serializable. All ROS message types are serializable. Here an example:
import roslib
roslib.load_manifest("visualization_msgs")
import visualization_msgs.msg
m=visualization_msgs.msg.Marker()
a=str(m)
In [55]: a
Out[55]: "header: \n seq: 0\n stamp: \n secs: 0\n nsecs: 0\n frame_id: ''\nns: ad\nid: 0\ntype: 0\naction: 0\npose: \n position: \n x: 0.0\n y: 0.0\n z: 0.0\n orientation: \n x: 0.0\n y: 0.0\n z: 0.0\n w: 0.0\nscale: \n x: 0.0\n y: 0.0\n z: 0.0\ncolor: \n r: 0.0\n g: 0.0\n b: 0.0\n a: 0.0\nlifetime: \n secs: 0\n nsecs: 0\nframe_locked: False\npoints: []\ncolors: []\ntext: asdfadf\nmesh_resource: adfa\nmesh_use_embedded_materials: False"
Here the message has been serialized in the yaml format and stored a string variable. You can also use the methods the methods "Marker.serialize" and "Marker.serialize_numpy" in conjunction with the io.StringIO class
Asked: 2013-01-14 06:46:43 -0500
Seen: 209 times
Last updated: Jan 14 '13
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How are you trying to serialize your markers?