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2016-06-16 00:12:38 -0500 | asked a question | Why using FLOAT32 to indicate coordinate in sensor_msgs::PointCloud2? I'm confused a lot in this question, why float32 rather than int32 for Cartesian Coordinate? |
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2015-12-22 07:21:50 -0500 | answered a question | Error while building map with slam Maybe you ran out of the memory. |
2015-12-22 06:39:08 -0500 | commented answer | How can I build a tf which is required by gampping? Thank you, let me give it a try. |
2015-12-22 06:30:51 -0500 | commented answer | How can I build a tf which is required by gampping? But some keywords like "camera_depth_frame", "camera_link"... Broadcasting them direct without any define or export? I set "false" as a default for "publish_tf" in ".../freenect_launch.launch". Thanks. |
2015-12-22 06:24:37 -0500 | asked a question | How to build tf transforms which is required by gmapping? I really can not understand how to combine scan to base_link, and depthimage_to_laserscan do not broadcast any tf transform. In http://wiki.ros.org/gmapping it reads:
And Turtlebot has tf transforms like this (I work out Odom->base_link, so leave out of them.): My kinect is fixed on the underpan, does it need a URDF file? Or just use static_transform_publisher is fine? Sincerely. |
2015-12-22 06:13:16 -0500 | asked a question | How can I build a tf which is required by gampping? I finished base_link → odom tf like this But in another required tf transform, it reads
( http://wiki.ros.org/gmapping ) I can not understand how to build tf: scan→ base_link , and depthimagine_to_laserscan(I use kinect) do not provide any tf Transform. And tf transforms in Turtlebot like this: So, how can I combine scan data to base_link and broadcast this tf like turtlebot? Some keywords like "camera_depth_frame", "camera_link"... Broadcasting them direct without any define or export? And my kinect is fixed on the underpan, does it need a URDF file, or just use static_transform_publisher is fine? Sincerely |