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Webots Tutorial

Reference

• 이수명
• cyberbotics

준비물

• Webots

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참고: https://blog.gaerae.com/2015/10/what-is-the-preferred-bash-shebang.html

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Webots simulation 사용방법

• 개발 환경 Setup

  source $HOME/webots_ros/devel/setup.bash
  

• Simulation node 실행

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윈도운 버전

code

void MakeDirectory(char *full_path)
{
   char temp[256], *sp;
   strcpy(temp, full_path);    // 경로문자열을 복사
   sp = temp;                  // 포인터를 문자열 처음으로

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import rospy
from sensor_msgs.msg import PointCloud2
import sensor_msgs.point_cloud2 as pc2


class SubscribePointCloud(object):
    def __init__(self):

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Python version change in Ubuntu

Reference

• https://linuxconfig.org/how-to-change-from-default-to-alternative-python-version-on-debian-linux

Change python version system-wide

update-alternatives --list python

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sudo apt-get install ros-kinetic-jsk-visualization ros-kinetic-jsk-rviz-plugins ros-kinetic-jsk-perception

Reference

• https://answers.ros.org/question/258444/sudo-apt-install-catkin-not-working/

  $ cd ~/catkin_ws/ $ catkin_make

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# numpy
import numpy as np

# matplotlib
import matplotlib.pyplot as plt


# test case

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class UnionFind:
    """Weighted quick-union with path compression.

    The original Java implementation is introduced at
    https://www.cs.princeton.edu/~rs/AlgsDS07/01UnionFind.pdf

    >>> uf = UnionFind(10)
    >>> for (p, q) in [(3, 4), (4, 9), (8, 0), (2, 3), (5, 6), (5, 9),
    ...                (7, 3), (4, 8), (6, 1)]:
    ...     uf.union(p, q)

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PCL 1.7.2 and Ubuntu16.04 (use Debian package)

Install PCL Module.?

sudo apt-get update -y

sudo apt-get install build-essential devscripts

dget -u https://launchpad.net/ubuntu/+archive/primary/+files/pcl_1.7.2-14ubuntu1.16.04.1.dsc