mixmap-peermaps

peermaps layer for mixmap

example

var mixmapPeermaps = require('mixmap-peermaps')
var eyros = require('eyros/2d')
var mixmap = require('mixmap')
var regl = require('regl')
var storage = require('mixmap-peermaps/storage/http')(
  params.get('data') ?? 'https://ipfs.io/ipfs/QmVCYUK51Miz4jEjJxCq3bA6dfq5FXD6s2EYp6LjHQhGmh'
)
var fontUrl = params.get('font') ?? 'https://ipfs.io/ipfs/QmNQCPGV3XZrtNdQyMbZhSJcGisg4xCFyxeHs1tacrdETm/DejaVuSans.qbzf'

var mix = mixmap(regl, {
  extensions: [ 'oes_element_index_uint', 'oes_texture_float', 'ext_float_blend' ]
})
var map = mix.create({
  viewbox: [7.56, 47.55, 7.58, 47.56], // basel, switzerland
  backgroundColor: [0.82, 0.85, 0.99, 1.0],
  pickfb: { colorFormat: 'rgba', colorType: 'float32' }
})

var style = new Image
style.onload = function () {
  var pm = mixmapPeermaps({
    map,
    eyros,
    storage,
    wasmSource: fetch('eyros2d.wasm'),
    font: fetch(fontUrl),
    style
  })

  window.addEventListener('click', function (ev) {
    pm.pick({ x: ev.offsetX, y: ev.offsetY }, function (err, data) {
      console.log('pick', err, data)
    })
  })
}
style.src = 'style.png'

window.addEventListener('keydown', function (ev) {
  if (ev.code === 'Digit0') {
    map.setZoom(Math.min(6,Math.round(map.getZoom()+1)))
  } else if (ev.code === 'Minus') {
    map.setZoom(map.getZoom()-1)
    console.log(map.getZoom())
  } else if (ev.code === 'Equal') {
    map.setZoom(map.getZoom()+1)
    console.log(map.getZoom())
  }
})
window.addEventListener('resize', function (ev) {
  map.resize(window.innerWidth, window.innerHeight)
})

document.body.style.margin = '0px'
document.body.style.overflow = 'hidden'
document.body.appendChild(mix.render())
document.body.appendChild(map.render({ width: window.innerWidth, height: window.innerHeight }))

make sure to copy node_modules/eyros/2d.wasm to eyros2d.wasm

api

var mixmapPeermaps = require('mixmap-peermaps')

mixmapPeermaps(opts)

• opts.map - mixmap instance
• opts.eyros - require('eyros/2d')
• opts.storage - random-access storage instance
• opts.wasmSource - wasm data of eyros/2d.wasm contents as an arraybuffer, typed array, Response, or Promise resolving to any of those types
• opts.style - html img element with style texture image data

install

npm install mixmap-peermaps

license

bsd