css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv

Pen Settings

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <h2 id="current"></h2>
<canvas id="globe"></canvas>

            
          
!
            
              html, body {
  margin: 0;
  padding: 0;
  background: #555;
}

#globe {
  cursor: move;  
}

#current {
  position: absolute;
  color: white;
  font-family: sans-serif;
  margin-left: 4%;
  margin-top: 4%;
}

            
          
!
            
              //
// Configuration
//

// ms to wait after dragging before auto-rotating
var rotationDelay = 3000
// scale of the globe (not the canvas element)
var scaleFactor = 0.9
// autorotation speed
var degPerSec = 6
// start angles
var angles = { x: -20, y: 40, z: 0}
// colors
var colorWater = '#fff'
var colorLand = '#111'
var colorGraticule = '#ccc'
var colorCountry = '#a00'


//
// Handler
//

function enter(country) {
  var country = countryList.find(function(c) {
    return c.id === country.id
  })
  current.text(country && country.name || '')
}

function leave(country) {
  current.text('')
}

//
// Variables
//

var current = d3.select('#current')
var canvas = d3.select('#globe')
var context = canvas.node().getContext('2d')
var water = {type: 'Sphere'}
var projection = d3.geoOrthographic().precision(0.1)
var graticule = d3.geoGraticule10()
var path = d3.geoPath(projection).context(context)
var v0 // Mouse position in Cartesian coordinates at start of drag gesture.
var r0 // Projection rotation as Euler angles at start.
var q0 // Projection rotation as versor at start.
var lastTime = d3.now()
var degPerMs = degPerSec / 1000
var width, height
var land, countries
var countryList
var autorotate, now, diff, roation
var currentCountry

//
// Functions
//

function setAngles() {
  var rotation = projection.rotate()
  rotation[0] = angles.y
  rotation[1] = angles.x
  rotation[2] = angles.z
  projection.rotate(rotation)
}

function scale() {
  width = document.documentElement.clientWidth
  height = document.documentElement.clientHeight
  canvas.attr('width', width).attr('height', height)
  projection
    .scale((scaleFactor * Math.min(width, height)) / 2)
    .translate([width / 2, height / 2])
  render()
}

function startRotation(delay) {
  autorotate.restart(rotate, delay || 0)
}

function stopRotation() {
  autorotate.stop()
}

function dragstarted() {
  v0 = versor.cartesian(projection.invert(d3.mouse(this)))
  r0 = projection.rotate()
  q0 = versor(r0)
  stopRotation()
}

function dragged() {
  var v1 = versor.cartesian(projection.rotate(r0).invert(d3.mouse(this)))
  var q1 = versor.multiply(q0, versor.delta(v0, v1))
  var r1 = versor.rotation(q1)
  projection.rotate(r1)
  render()
}

function dragended() {
  startRotation(rotationDelay)
}

function render() {
  context.clearRect(0, 0, width, height)
  fill(water, colorWater)
  stroke(graticule, colorGraticule)
  fill(land, colorLand)
  if (currentCountry) {
    fill(currentCountry, colorCountry)
  }
}

function fill(obj, color) {
  context.beginPath()
  path(obj)
  context.fillStyle = color
  context.fill()
}

function stroke(obj, color) {
  context.beginPath()
  path(obj)
  context.strokeStyle = color
  context.stroke()
}

function rotate(elapsed) {
  now = d3.now()
  diff = now - lastTime
  if (diff < elapsed) {
    rotation = projection.rotate()
    rotation[0] += diff * degPerMs
    projection.rotate(rotation)
    render()
  }
  lastTime = now
}

function loadData(cb) {
  d3.json('https://unpkg.com/world-atlas@1/world/110m.json', function(error, world) {
    if (error) throw error
    d3.tsv('https://gist.githubusercontent.com/mbostock/4090846/raw/07e73f3c2d21558489604a0bc434b3a5cf41a867/world-country-names.tsv', function(error, countries) {
      if (error) throw error
      cb(world, countries)
    })
  })
}

// https://github.com/d3/d3-polygon
function polygonContains(polygon, point) {
  var n = polygon.length
  var p = polygon[n - 1]
  var x = point[0], y = point[1]
  var x0 = p[0], y0 = p[1]
  var x1, y1
  var inside = false
  for (var i = 0; i < n; ++i) {
    p = polygon[i], x1 = p[0], y1 = p[1]
    if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside
    x0 = x1, y0 = y1
  }
  return inside
}

function mousemove() {
  var c = getCountry(this)
  if (!c) {
    if (currentCountry) {
      leave(currentCountry)
      currentCountry = undefined
      render()
    }
    return
  }
  if (c === currentCountry) {
    return
  }
  currentCountry = c
  render()
  enter(c)
}

function getCountry(event) {
  var pos = projection.invert(d3.mouse(event))
  return countries.features.find(function(f) {
    return f.geometry.coordinates.find(function(c1) {
      return polygonContains(c1, pos) || c1.find(function(c2) {
        return polygonContains(c2, pos)
      })
    })
  })
}


//
// Initialization
//

setAngles()

canvas
  .call(d3.drag()
    .on('start', dragstarted)
    .on('drag', dragged)
    .on('end', dragended)
   )
  .on('mousemove', mousemove)

loadData(function(world, cList) {
  land = topojson.feature(world, world.objects.land)
  countries = topojson.feature(world, world.objects.countries)
  countryList = cList
  
  window.addEventListener('resize', scale)
  scale()
  autorotate = d3.timer(rotate)
})
            
          
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
Loading ..................

Console