Set the PYTHONPATH

First, determine the correct python path you want to use. To list the path, using the command python -m site echo $PATH To see the current python package used insystem, try echo $PYTHONPATH Then, edit your .bashrc. This is let the system forget all the other python. It will only love one path: the one […]

LaTeX notes

A good tutorials website: https://www.latex-tutorial.com/ An online editor: https://www.sharelatex.com A good reference cheat sheet https://wch.github.io/latexsheet/ List of all mathematical symbol https://oeis.org/wiki/List_of_LaTeX_mathematical_symbols Greek Alphabet https://www.latex-tutorial.com/symbols/greek-alphabet/ Double-barred font: https://www.latex-tutorial.com/symbols/greek-alphabet/ Script-like font: http://www.stat.colostate.edu/~vollmer/pdfs/typesetting-script.pdf Multiline equations, systems and matrices LaTeX – Multiline equations, systems and matrices Use $ for inline equations https://www.sharelatex.com/learn/Mathematical_expressions Page size and margins https://www.sharelatex.com/learn/Page_size_and_margins Center align and format […]

Graphical image annotation tool

This morning I played with some manual graphical image annotation tool, for fun, and also for preparing the term thesis project. There is a Wikipedia page where lists some popular annotation tool https://en.wikipedia.org/wiki/List_of_Manual_Image_Annotation_Tools I first tried LabelMe. This is a famous project created by MIT guys. It is recently open sourced on github. https://github.com/CSAILVision/LabelMeAnnotationTool It […]

Working Log on Ubuntu 16.04

7-10 Install Google Cartographer ROS follow the instruction here https://google-cartographer-ros.readthedocs.io/en/latest/ I installed the wstool.  Because there is already a folder “catkin_ws” created by the original catkin tool. In order to avoid trouble, I created a new folder “ros_catkin_ws” as the root folder for wstool. This is the folder name in ROS’s intruction page here http://wiki.ros.org/wstool 7-12 Remove […]

Self-Driving Golf Car(1): Environment Setup

Ros has an example project to demonstrate how to write software for an autonomous golf car, RBCar by Robotnik Automation. From this weekend, I started to study this. The project’s ROS homepage: http://wiki.ros.org/Robots/RBCAR In order to run the demo, you have to download the following packages: rbcar_common, rbcar_sim, robotnik_purepursuit_planner, ackermann_msgs, move_base_msgs, robotnik_msgs, robotnik_sensors, twist_mux, summit_xl_pad (When I […]

To prepare a new Ubuntu 16.04 laptop for self-driving car study

Here I write down everything about my new laptop. It builds things. Spotify https://www.spotify.com/us/download/linux/ Bucklespring What is Bucklespring? http://www.omgubuntu.co.uk/2017/06/buckling-spring-keyboard-app Author https://github.com/zevv/bucklespring To Install: VS Code https://code.visualstudio.com/download OpenCV Head Up! If you want to install OpenCV 3.1 ( e.g., until now,  ZED Stereo SDK only works with 3.1)and CUDA 8, download the OpenCV source from here. […]