text: // Copyright (c) 2015 - 2017 Uber Technologies, Inc.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  
  // Note: The numeric values here are matched by shader code in the
  // "project" and "project64" shader modules. Both places need to be
  // updated.
  
  // TODO: Maybe "POSITIONS" would be a better name?
  export const COORDINATE_SYSTEM = {
    // Positions are interpreted as [lng, lat, elevation]
    // lng lat are degrees, elevation is meters. distances as meters.
    LNGLAT: 1,
    LNGLAT_EXPERIMENTAL: 1,
    LNGLAT_DEPRECATED: 5,
  
    // Positions are interpreted as meter offsets, distances as meters
    METER_OFFSETS: 2,
    // Planned to deprecate in later versions, in favor of METER_OFFSETS
    METERS: 2,
  
    // Positions are interpreted as lng lat offsets: [deltaLng, deltaLat, elevation]
    // deltaLng, deltaLat are delta degrees, elevation is meters.
    // distances as meters.
    LNGLAT_OFFSETS: 3,
  
    // Positions and distances are not transformed: [x, y, z] in unit coordinates
    IDENTITY: 0
  };
  