insaneyilin

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


from __future__ import print_function
import os
import sys
import argparse
import cv2

insaneyilin

# /etc/profile.d/alias.sh

# https://www.cyberciti.biz/tips/bash-aliases-mac-centos-linux-unix.html

## ls command
alias ls='ls --color=auto'
alias wl='ls | wc -l'
alias l='ls -l --color=auto'
alias lh='ls -lh --color=auto'
alias ll='ls -la --color=auto'  # use a long listing format

insaneyilin

#include <iostream>
#include <sstream>
#include <iomanip>
#include <string>

// e.g. 1584773265.928826
std::stringstream oss;
oss << std::setfill('0') << std::setw(17) << std::fixed
    << std::setprecision(6) << timestamp << ".png";
std::string filename = oss.str();

insaneyilin

#include <iostream>
#include <fstream>
#include <string>

// e.g. ./main data_tracking_velodyne/testing/velodyne/0000/000000.bin
int main(int argc, char **argv) {
  if (argc != 2) {
    std::cerr << "Usage: " << argv[0] << " <filepath>\n";
    return 1;
  }

insaneyilin

void PrintEigenMat(const Eigen::Ref<const Eigen::MatrixXd> &x,
    const std::string mat_name) {
  if (!mat_name.empty()) {
    std::cout << mat_name << " =\n";
  }
  const int rows = x.rows();
  const int cols = x.cols();
  char buf[200];
  for (int i = 0; i < rows; ++i) {
    for (int j = 0; j < cols; ++j) {

insaneyilin

#!/usr/bin/env python3
import time
import datetime

# change your birthday here
my_birthday = datetime.datetime(2000, 1, 1, 00, 00, 00) 
dt_now = datetime.datetime.now()

print(dt_now)
print('UNIX timestamp: {}'.format(dt_now.timestamp()))

insaneyilin

function timestampToDateStr(timestamp) {
  var format = 'Y/M/D h:m:s';
  var formatArr = ['Y','M','D','h','m','s'];
  var returnArr = [];

  var formatNumber = function(n) {
    n = n.toString();
    return n[1] ? n : '0' + n;
  };
  var date = new Date(timestamp * 1000);

insaneyilin

# https://stackoverflow.com/questions/343865

def utm_to_lat_lon(zone, easting, northing, northern_hemisphere=True):
    if not northern_hemisphere:
        northing = 10000000 - northing

    a = 6378137
    e = 0.081819191
    e1sq = 0.006739497
    k0 = 0.9996

insaneyilin

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <sstream>

int main(int argc, char **argv) {
  if (argc != 2) {
    std::cout << "Usage: ./load_big_ply <filename>\n";
    return 1;

insaneyilin

#include <iostream>
#include <thread>
#include <chrono>

void foo() {
  std::this_thread::sleep_for(std::chrono::milliseconds(100));
}

int main(int argc, char **argv) {
  auto start_time = std::chrono::high_resolution_clock::now();