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Hi there. Im running the rqt graph code.as you know there is lot of line, and when you move the mouse at the line, there will be colour on the line like red, green, orange,blue and others. So what are the meaning for each colour on the rqt graph? regards.
Each line represents a single field (from a topic) which is plotted over time.
The color of the line indicates which value it represents; the legend on the graph tells you which field in the topic is represented by each color.
If you're still having trouble, maybe you can edit you question to include a screenshot, and I can explain by example.
In ROS the color represents either a publisher, topic, or a subscriber. Blue represents a Publisher, Red represents a Topic, and Green represents a Subscriber. Publisher and Subscriber are nodes that are depicted as oval with text wrapped within it. Topics are represented as lines/edges that are stream of messages that connects a publisher and a subscriber, which allows communication, receive inputs and outputs.
Asked: 2014-12-13 18:08:24 -0600
Seen: 1,197 times
Last updated: Dec 14 '14
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