December 2016
Beginner to intermediate
468 pages
9h 43m
English
book
Effective Robotics Programming with ROS - Third Edition
by Luis Sanchez, Enrique Fernandez Perdomo, Anil Mahtani
Content preview from Effective Robotics Programming with ROS - Third EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Plotting scalar data
Scalar data can be easily plotted with generic tools already available in ROS. Even non-scalar data can be plotted, but with each scalar field plotted separately. That is why we talk about scalar data, because most non-scalar structures are better represented with ad-hoc visualizers, some of which we will see later; for instance, images, poses, orientation/attitude, and so on.
Creating a time series plot with rqt_plot
Scalar data can be plotted as a time series over the time provided by the timestamps of the messages. Then, in the y axis, we can plot our scalar data. The tool for doing so is rqt_plot. It has a powerful argument syntax, which allows you to specify several fields of a structured message in a concise manner; we ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.