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# A way of reproducing https://github.com/ros2/rviz/issues/322 
#
# Code source:
# https://github.com/SebastianGrans/ROS2-Point-Cloud-Demo/blob/79ef97fc92147a0d550543a69541139097cc3b35/pcd_demo/pcd_publisher/pcd_publisher_node.py

import rclpy
from rclpy.node import Node
import sensor_msgs.msg as sensor_msgs
import std_msgs.msg as std_msgs

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alias cdd="cd ~/Downloads/"
alias cddev="cd ~/Documents/Github"
alias cdc="cddev"

alias gb="git branch -a"
alias gc="git checkout"
alias gcb="git checkout -b"
alias gg="git gui"
alias gl="git log --pretty=oneline --graph"
alias gs="git status"

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" vim: foldmethod=marker

" Setup instructions
" ------------------
" 1. Setup Vundle
"   ```
"   git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
"   ```
" 2. Copy the contents of this file into `~/.vimrc`
" 3. Install the plugins with `vim +PluginInstall +qall`

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#!/bin/bash
if [ -z ${1+x} ];
then
      echo "Exiting - Please enter a package"
      exit 1
fi

if [ -z ${2+x} ];
then
	MODE="select";

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set $mod Mod1

# Appearance
font pango:monospace 8

# System execs
exec --no-startup-id xss-lock --transfer-sleep-lock -- i3lock --nofork
exec --no-startup-id nm-applet

# Use pactl to adjust volume in PulseAudio.

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README

My ROS 2 and Gazebo Docker setup. This can be extended or used an example for other Docker containers that want to use graphics and have persistent volumes.

Features

• Run Gazebo and ROS 2 in a Docker container
• Persistent workspace
• Graphics support

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New Ubuntu System Setup

• Steps
• Optional
• For Open Robotics

Steps

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Debugging RMW Errors

• ROS 2 Topic Bad QoS settings
  • 2021-12-20
• Unknown Windows Error
  • 2022-01-06

ROS 2 Topic Bad QoS settings

• Issue running CI: ros2/rmw#315
• Failed test in CI: https://ci.ros2.org/job/ci_linux/15673/testReport/junit/ros2topic.ros2topic.test/test_echo_pub/test_echo_pub/

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Teleprompter

• 2 mirror version: https://www.proprompter.com/teleprompters/proprompter-desktop/
• Get glass: https://telepromptermirror.com/
  • DIY + parts: https://telepromptermirror.com/how-to-make-a-teleprompter/
    • ~300 in Amazon
  • Buy kit: https://telepromptermirror.com/presidential-teleprompter/
  • Get a free sample of 6”x6”
• Close on Amazon:

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Deep Work by Cal Newport

• Schedule your whole day, every 30 minutes
• How deep of a task? --> proxy: How long for a college graduate to learn this?
• Bosses typically like 30-40% shallow work
• Consider creating sender emails, such as interesting@
• To speed up emails, say the whole process in the email
• Fixed schedule planning - e.g., only work between 9:30am-5:30pm