zhaocnus

export function coordinateToPosition(lat, lng, radius) {
  const phi = (90 - lat) * DEGREE_TO_RADIAN;
  const theta = (lng + 180) * DEGREE_TO_RADIAN;

  return new THREE.Vector3(
    - radius * Math.sin(phi) * Math.cos(theta),
    radius * Math.cos(phi),
    radius * Math.sin(phi) * Math.sin(theta)
  );
}

zhaocnus

import * as THREE from 'three';
import { geoInterpolate } from 'd3-geo';

const GLOBE_RADIUS = 200;
const CURVE_MIN_ALTITUDE = 20;
const CURVE_MAX_ALTITUDE = 200;
const DEGREE_TO_RADIAN = Math.PI / 180;

export function clamp(num, min, max) {
  return num <= min ? min : (num >= max ? max : num);

zhaocnus

Check/update chrome flags

• chrome://gpu
• chrome://flags

Start Chrome with specific flags

• Flags
  • --start-fullscreen
• --kiosk

zhaocnus

/**
 * braces/brackets/parentheses validator
 */
function check(str) {
    const closers = {
        ')' : '(',
        '}' : '{',
        ']' : '['
    };
    const openers = {

zhaocnus

# simple php server to serve adminer
php -S localhost:8000

zhaocnus

// children propType
Foo.propTypes = {
  children: PropTypes.oneOfType([
    PropTypes.arrayOf(React.PropTypes.node),
    PropTypes.node
  ])
}  

// use react router in a component (if you have to)
import withRouter from 'react-router/lib/withRouter';

zhaocnus

# create local branch (shorthand)
git checkout -b <branch_name>

# create local branch
git branch <branch_name>
git checkout <branch_name>

# and then start hacking and commit

# push branch to remote

zhaocnus

# Serve static SPA
server {
  listen 80;
  
  root /home/young/src/www.example.com/;
  index index.html;
  
  server_name www.example.com;
  
  location / { 

zhaocnus

# delete all locally missing files
svn st | grep ^! | awk '{print " --force "$2}' | xargs svn rm

# add all unversioned files to SVN
svn add --force * --auto-props --parents --depth infinity -q

# edit a ignore list on this folder
svn propedit svn:ignore .