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2014-07-28 08:40:17 -0500	received badge	● Famous Question (source)
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2014-07-25 02:18:35 -0500	asked a question	How to compile ROS messages "by hand"? In our project, we use `SCons` as our build system. However, I compiled a `ROS` node (publisher) and try to integrate ROS as good as possible without `catkin`. Now I need a custom message type and wonder, how the language-specific code is compiled from a `.msg` file? Which is the executable catkin calls to build the messages?
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2014-06-02 00:57:04 -0500	commented answer	How to implement the "pipeline pattern" in ROS? Thank you, this makes it very clear!
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2014-05-29 10:50:33 -0500	asked a question	How to implement the "pipeline pattern" in ROS? Hi, as far as I understand in ROS the connections between nodes are implicitely given by topic names. So for example node A provides "camera_image", and node B subscribes to "camera_image", and provides "edge_detections". Now, A and B are connected. The names are hard-coded in the nodes source files. But what if I want to install a node C between A and B, which takes "camera_image", provides "black_and_white_image"? Node B now should no longer subscribe to "camera_image", but to "black_and_white_image". Of course I don't want to change the source of B. Should I pass the topic name as command line argument? What is my fundamental misunderstanding here?