google-panorama-tiles

Normalizes tile data for Google Street View tiles, typically used for "quilting" or stitching it into a single equirectangular image.

Kudos to @thespite and PanomNom.js, which was used as reference here.

Example

Here is an example using google-panorama-by-location to get the StreetView data.

var normalize = require('google-panorama-tiles')
var panorama = require('google-panorama-by-location')
 
var zoom = 1
var location = [ 51.50700703827454, -0.12791916931155356 ]
panorama(location, function (err, result) {
  if (err) throw err
  var data = normalize(zoom, result.tiles)
  
  // tile size
  console.log(data.tileWidth, data.tileHeight)
  
  // canvas size
  console.log(data.width, data.height)
})

Usage

`data = normalize(zoom, [tiles])`

Gets StreetView tiling data from the given zoom level (0, 1, 2, etc) and optional tiles data.

The tiles are the result of a getPanoramaByLocation or getPanoramaById call, and contain { tileSize, worldSize } dimensions.

If they are not specified, the resulting data will be approximated by assuming the panorama is a StreetView. However, passing tiles is recommended to support PhotoSphere imagery.

The returned data has the form:

{
  columns: Number,
  rows: Number,
  tileWidth: Number,
  tileHeight: Number,
  width: Number,
  height: Number
}

License

MIT, see LICENSE.md for details.