kepler.gl/dist/deckgl-layers/3d-building-layer/3d-building-utils.js

kepler.gl is a webgl based application to visualize large scale location data in the browser

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getTileData = getTileData;
exports.decodeTile = decodeTile;
exports.vectorTileFeatureToProp = vectorTileFeatureToProp;

var _pbf = _interopRequireDefault(require("pbf"));

var _vectorTile = require("@mapbox/vector-tile");

var _viewportMercatorProject = require("viewport-mercator-project");

// Copyright (c) 2020 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.

/* global fetch */
var TILE_SIZE = 512;
var MAPBOX_HOST = 'https://a.tiles.mapbox.com';
var MAP_SOURCE = '/v4/mapbox.mapbox-streets-v7';

function getTileData(host, token, _ref) {
  var x = _ref.x,
      y = _ref.y,
      z = _ref.z;
  var mapSource = "".concat(host || MAPBOX_HOST).concat(MAP_SOURCE, "/").concat(z, "/").concat(x, "/").concat(y, ".vector.pbf?access_token=").concat(token);
  return fetch(mapSource).then(function (response) {
    return response.arrayBuffer();
  }).then(function (buffer) {
    return decodeTile(x, y, z, buffer);
  });
}

function decodeTile(x, y, z, arrayBuffer) {
  var tile = new _vectorTile.VectorTile(new _pbf["default"](arrayBuffer));
  var result = [];
  var xProj = x * TILE_SIZE;
  var yProj = y * TILE_SIZE;
  var scale = Math.pow(2, z);
  var projectFunc = project.bind(null, xProj, yProj, scale);
  /* eslint-disable guard-for-in */

  var layerName = 'building';
  var vectorTileLayer = tile.layers[layerName];

  if (!vectorTileLayer) {
    return [];
  }

  for (var i = 0; i < vectorTileLayer.length; i++) {
    var vectorTileFeature = vectorTileLayer.feature(i);
    var features = vectorTileFeatureToProp(vectorTileFeature, projectFunc);
    features.forEach(function (f) {
      f.properties.layer = layerName;

      if (f.properties.height) {
        result.push(f);
      }
    });
  }

  return result;
}

function project(x, y, scale, line, extent) {
  var sizeToPixel = extent / TILE_SIZE;

  for (var ii = 0; ii < line.length; ii++) {
    var p = line[ii]; // LNGLAT

    line[ii] = (0, _viewportMercatorProject.worldToLngLat)([x + p[0] / sizeToPixel, y + p[1] / sizeToPixel], scale);
  }
}
/* adapted from @mapbox/vector-tile/lib/vectortilefeature.js for better perf */

/* eslint-disable */


function vectorTileFeatureToProp(vectorTileFeature, project) {
  var coords = getCoordinates(vectorTileFeature);
  var type = _vectorTile.VectorTileFeature.types[vectorTileFeature.type];
  var extent = vectorTileFeature.extent;
  var i;
  var j;
  coords = classifyRings(coords);

  for (i = 0; i < coords.length; i++) {
    for (j = 0; j < coords[i].length; j++) {
      project(coords[i][j], extent);
    }
  }

  return coords.map(function (coordinates) {
    return {
      coordinates: coordinates,
      properties: vectorTileFeature.properties
    };
  });
}

function getCoordinates(vectorTileFeature) {
  var pbf = vectorTileFeature._pbf;
  pbf.pos = vectorTileFeature._geometry;
  var end = pbf.readVarint() + pbf.pos;
  var cmd = 1;
  var length = 0;
  var x = 0;
  var y = 0;
  var lines = [];
  var line;

  while (pbf.pos < end) {
    if (length <= 0) {
      var cmdLen = pbf.readVarint();
      cmd = cmdLen & 0x7;
      length = cmdLen >> 3;
    }

    length--;

    if (cmd === 1 || cmd === 2) {
      x += pbf.readSVarint();
      y += pbf.readSVarint();

      if (cmd === 1) {
        // moveTo
        if (line) lines.push(line);
        line = [];
      }

      line.push([x, y]);
    } else if (cmd === 7) {
      // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90
      if (line) {
        line.push(line[0].slice()); // closePolygon
      }
    } else {
      throw new Error("unknown command ".concat(cmd));
    }
  }

  if (line) lines.push(line);
  return lines;
} // classifies an array of rings into polygons with outer rings and holes


function classifyRings(rings) {
  var len = rings.length;
  if (len <= 1) return [rings];
  var polygons = [];
  var polygon;
  var ccw;

  for (var i = 0; i < len; i++) {
    var area = signedArea(rings[i]);

    if (area === 0) {
      continue;
    }

    if (ccw === undefined) {
      ccw = area < 0;
    }

    if (ccw === area < 0) {
      if (polygon) {
        polygons.push(polygon);
      }

      polygon = [rings[i]];
    } else {
      polygon.push(rings[i]);
    }
  }

  if (polygon) {
    polygons.push(polygon);
  }

  return polygons;
}

function signedArea(ring) {
  var sum = 0;

  for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {
    p1 = ring[i];
    p2 = ring[j];
    sum += (p2[0] - p1[0]) * (p1[1] + p2[1]);
  }

  return sum;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../../src/deckgl-layers/3d-building-layer/3d-building-utils.js"],"names":["TILE_SIZE","MAPBOX_HOST","MAP_SOURCE","getTileData","host","token","x","y","z","mapSource","fetch","then","response","arrayBuffer","buffer","decodeTile","tile","VectorTile","Protobuf","result","xProj","yProj","scale","Math","pow","projectFunc","project","bind","layerName","vectorTileLayer","layers","i","length","vectorTileFeature","feature","features","vectorTileFeatureToProp","forEach","f","properties","layer","height","push","line","extent","sizeToPixel","ii","p","coords","getCoordinates","type","VectorTileFeature","types","j","classifyRings","map","coordinates","pbf","_pbf","pos","_geometry","end","readVarint","cmd","lines","cmdLen","readSVarint","slice","Error","rings","len","polygons","polygon","ccw","area","signedArea","undefined","ring","sum","p1","p2"],"mappings":";;;;;;;;;;;AAoBA;;AACA;;AACA;;AAtBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAMA;AACA,IAAMA,SAAS,GAAG,GAAlB;AACA,IAAMC,WAAW,GAAG,4BAApB;AACA,IAAMC,UAAU,GAAG,8BAAnB;;AAEO,SAASC,WAAT,CAAqBC,IAArB,EAA2BC,KAA3B,QAA6C;AAAA,MAAVC,CAAU,QAAVA,CAAU;AAAA,MAAPC,CAAO,QAAPA,CAAO;AAAA,MAAJC,CAAI,QAAJA,CAAI;AAClD,MAAMC,SAAS,aAAML,IAAI,IACvBH,WADa,SACCC,UADD,cACeM,CADf,cACoBF,CADpB,cACyBC,CADzB,sCACsDF,KADtD,CAAf;AAGA,SAAOK,KAAK,CAACD,SAAD,CAAL,CACJE,IADI,CACC,UAAAC,QAAQ;AAAA,WAAIA,QAAQ,CAACC,WAAT,EAAJ;AAAA,GADT,EAEJF,IAFI,CAEC,UAAAG,MAAM;AAAA,WAAIC,UAAU,CAACT,CAAD,EAAIC,CAAJ,EAAOC,CAAP,EAAUM,MAAV,CAAd;AAAA,GAFP,CAAP;AAGD;;AAEM,SAASC,UAAT,CAAoBT,CAApB,EAAuBC,CAAvB,EAA0BC,CAA1B,EAA6BK,WAA7B,EAA0C;AAC/C,MAAMG,IAAI,GAAG,IAAIC,sBAAJ,CAAe,IAAIC,eAAJ,CAAaL,WAAb,CAAf,CAAb;AAEA,MAAMM,MAAM,GAAG,EAAf;AACA,MAAMC,KAAK,GAAGd,CAAC,GAAGN,SAAlB;AACA,MAAMqB,KAAK,GAAGd,CAAC,GAAGP,SAAlB;AACA,MAAMsB,KAAK,GAAGC,IAAI,CAACC,GAAL,CAAS,CAAT,EAAYhB,CAAZ,CAAd;AAEA,MAAMiB,WAAW,GAAGC,OAAO,CAACC,IAAR,CAAa,IAAb,EAAmBP,KAAnB,EAA0BC,KAA1B,EAAiCC,KAAjC,CAApB;AAEA;;AACA,MAAMM,SAAS,GAAG,UAAlB;AACA,MAAMC,eAAe,GAAGb,IAAI,CAACc,MAAL,CAAYF,SAAZ,CAAxB;;AACA,MAAI,CAACC,eAAL,EAAsB;AACpB,WAAO,EAAP;AACD;;AACD,OAAK,IAAIE,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGF,eAAe,CAACG,MAApC,EAA4CD,CAAC,EAA7C,EAAiD;AAC/C,QAAME,iBAAiB,GAAGJ,eAAe,CAACK,OAAhB,CAAwBH,CAAxB,CAA1B;AACA,QAAMI,QAAQ,GAAGC,uBAAuB,CAACH,iBAAD,EAAoBR,WAApB,CAAxC;AACAU,IAAAA,QAAQ,CAACE,OAAT,CAAiB,UAAAC,CAAC,EAAI;AACpBA,MAAAA,CAAC,CAACC,UAAF,CAAaC,KAAb,GAAqBZ,SAArB;;AACA,UAAIU,CAAC,CAACC,UAAF,CAAaE,MAAjB,EAAyB;AACvBtB,QAAAA,MAAM,CAACuB,IAAP,CAAYJ,CAAZ;AACD;AACF,KALD;AAMD;;AACD,SAAOnB,MAAP;AACD;;AAED,SAASO,OAAT,CAAiBpB,CAAjB,EAAoBC,CAApB,EAAuBe,KAAvB,EAA8BqB,IAA9B,EAAoCC,MAApC,EAA4C;AAC1C,MAAMC,WAAW,GAAGD,MAAM,GAAG5C,SAA7B;;AAEA,OAAK,IAAI8C,EAAE,GAAG,CAAd,EAAiBA,EAAE,GAAGH,IAAI,CAACX,MAA3B,EAAmCc,EAAE,EAArC,EAAyC;AACvC,QAAMC,CAAC,GAAGJ,IAAI,CAACG,EAAD,CAAd,CADuC,CAEvC;;AACAH,IAAAA,IAAI,CAACG,EAAD,CAAJ,GAAW,4CAAc,CAACxC,CAAC,GAAGyC,CAAC,CAAC,CAAD,CAAD,GAAOF,WAAZ,EAAyBtC,CAAC,GAAGwC,CAAC,CAAC,CAAD,CAAD,GAAOF,WAApC,CAAd,EAAgEvB,KAAhE,CAAX;AACD;AACF;AAED;;AACA;;;AACO,SAASc,uBAAT,CAAiCH,iBAAjC,EAAoDP,OAApD,EAA6D;AAClE,MAAIsB,MAAM,GAAGC,cAAc,CAAChB,iBAAD,CAA3B;AACA,MAAMiB,IAAI,GAAGC,8BAAkBC,KAAlB,CAAwBnB,iBAAiB,CAACiB,IAA1C,CAAb;AACA,MAAMN,MAAM,GAAGX,iBAAiB,CAACW,MAAjC;AACA,MAAIb,CAAJ;AACA,MAAIsB,CAAJ;AAEAL,EAAAA,MAAM,GAAGM,aAAa,CAACN,MAAD,CAAtB;;AACA,OAAKjB,CAAC,GAAG,CAAT,EAAYA,CAAC,GAAGiB,MAAM,CAAChB,MAAvB,EAA+BD,CAAC,EAAhC,EAAoC;AAClC,SAAKsB,CAAC,GAAG,CAAT,EAAYA,CAAC,GAAGL,MAAM,CAACjB,CAAD,CAAN,CAAUC,MAA1B,EAAkCqB,CAAC,EAAnC,EAAuC;AACrC3B,MAAAA,OAAO,CAACsB,MAAM,CAACjB,CAAD,CAAN,CAAUsB,CAAV,CAAD,EAAeT,MAAf,CAAP;AACD;AACF;;AAED,SAAOI,MAAM,CAACO,GAAP,CAAW,UAAAC,WAAW;AAAA,WAAK;AAChCA,MAAAA,WAAW,EAAXA,WADgC;AAEhCjB,MAAAA,UAAU,EAAEN,iBAAiB,CAACM;AAFE,KAAL;AAAA,GAAtB,CAAP;AAID;;AAED,SAASU,cAAT,CAAwBhB,iBAAxB,EAA2C;AACzC,MAAMwB,GAAG,GAAGxB,iBAAiB,CAACyB,IAA9B;AACAD,EAAAA,GAAG,CAACE,GAAJ,GAAU1B,iBAAiB,CAAC2B,SAA5B;AAEA,MAAMC,GAAG,GAAGJ,GAAG,CAACK,UAAJ,KAAmBL,GAAG,CAACE,GAAnC;AACA,MAAII,GAAG,GAAG,CAAV;AACA,MAAI/B,MAAM,GAAG,CAAb;AACA,MAAI1B,CAAC,GAAG,CAAR;AACA,MAAIC,CAAC,GAAG,CAAR;AAEA,MAAMyD,KAAK,GAAG,EAAd;AACA,MAAIrB,IAAJ;;AAEA,SAAOc,GAAG,CAACE,GAAJ,GAAUE,GAAjB,EAAsB;AACpB,QAAI7B,MAAM,IAAI,CAAd,EAAiB;AACf,UAAMiC,MAAM,GAAGR,GAAG,CAACK,UAAJ,EAAf;AACAC,MAAAA,GAAG,GAAGE,MAAM,GAAG,GAAf;AACAjC,MAAAA,MAAM,GAAGiC,MAAM,IAAI,CAAnB;AACD;;AAEDjC,IAAAA,MAAM;;AAEN,QAAI+B,GAAG,KAAK,CAAR,IAAaA,GAAG,KAAK,CAAzB,EAA4B;AAC1BzD,MAAAA,CAAC,IAAImD,GAAG,CAACS,WAAJ,EAAL;AACA3D,MAAAA,CAAC,IAAIkD,GAAG,CAACS,WAAJ,EAAL;;AAEA,UAAIH,GAAG,KAAK,CAAZ,EAAe;AACb;AACA,YAAIpB,IAAJ,EAAUqB,KAAK,CAACtB,IAAN,CAAWC,IAAX;AACVA,QAAAA,IAAI,GAAG,EAAP;AACD;;AAEDA,MAAAA,IAAI,CAACD,IAAL,CAAU,CAACpC,CAAD,EAAIC,CAAJ,CAAV;AACD,KAXD,MAWO,IAAIwD,GAAG,KAAK,CAAZ,EAAe;AACpB;AACA,UAAIpB,IAAJ,EAAU;AACRA,QAAAA,IAAI,CAACD,IAAL,CAAUC,IAAI,CAAC,CAAD,CAAJ,CAAQwB,KAAR,EAAV,EADQ,CACoB;AAC7B;AACF,KALM,MAKA;AACL,YAAM,IAAIC,KAAJ,2BAA6BL,GAA7B,EAAN;AACD;AACF;;AAED,MAAIpB,IAAJ,EAAUqB,KAAK,CAACtB,IAAN,CAAWC,IAAX;AAEV,SAAOqB,KAAP;AACD,C,CAED;;;AAEA,SAASV,aAAT,CAAuBe,KAAvB,EAA8B;AAC5B,MAAMC,GAAG,GAAGD,KAAK,CAACrC,MAAlB;AAEA,MAAIsC,GAAG,IAAI,CAAX,EAAc,OAAO,CAACD,KAAD,CAAP;AAEd,MAAME,QAAQ,GAAG,EAAjB;AACA,MAAIC,OAAJ;AACA,MAAIC,GAAJ;;AAEA,OAAK,IAAI1C,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGuC,GAApB,EAAyBvC,CAAC,EAA1B,EAA8B;AAC5B,QAAM2C,IAAI,GAAGC,UAAU,CAACN,KAAK,CAACtC,CAAD,CAAN,CAAvB;;AACA,QAAI2C,IAAI,KAAK,CAAb,EAAgB;AACd;AACD;;AAED,QAAID,GAAG,KAAKG,SAAZ,EAAuB;AACrBH,MAAAA,GAAG,GAAGC,IAAI,GAAG,CAAb;AACD;;AAED,QAAID,GAAG,KAAKC,IAAI,GAAG,CAAnB,EAAsB;AACpB,UAAIF,OAAJ,EAAa;AACXD,QAAAA,QAAQ,CAAC7B,IAAT,CAAc8B,OAAd;AACD;;AACDA,MAAAA,OAAO,GAAG,CAACH,KAAK,CAACtC,CAAD,CAAN,CAAV;AACD,KALD,MAKO;AACLyC,MAAAA,OAAO,CAAC9B,IAAR,CAAa2B,KAAK,CAACtC,CAAD,CAAlB;AACD;AACF;;AACD,MAAIyC,OAAJ,EAAa;AACXD,IAAAA,QAAQ,CAAC7B,IAAT,CAAc8B,OAAd;AACD;;AAED,SAAOD,QAAP;AACD;;AAED,SAASI,UAAT,CAAoBE,IAApB,EAA0B;AACxB,MAAIC,GAAG,GAAG,CAAV;;AACA,OAAK,IAAI/C,CAAC,GAAG,CAAR,EAAWuC,GAAG,GAAGO,IAAI,CAAC7C,MAAtB,EAA8BqB,CAAC,GAAGiB,GAAG,GAAG,CAAxC,EAA2CS,EAA3C,EAA+CC,EAApD,EAAwDjD,CAAC,GAAGuC,GAA5D,EAAiEjB,CAAC,GAAGtB,CAAC,EAAtE,EAA0E;AACxEgD,IAAAA,EAAE,GAAGF,IAAI,CAAC9C,CAAD,CAAT;AACAiD,IAAAA,EAAE,GAAGH,IAAI,CAACxB,CAAD,CAAT;AACAyB,IAAAA,GAAG,IAAI,CAACE,EAAE,CAAC,CAAD,CAAF,GAAQD,EAAE,CAAC,CAAD,CAAX,KAAmBA,EAAE,CAAC,CAAD,CAAF,GAAQC,EAAE,CAAC,CAAD,CAA7B,CAAP;AACD;;AACD,SAAOF,GAAP;AACD","sourcesContent":["// Copyright (c) 2020 Uber Technologies, Inc.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n// THE SOFTWARE.\n\nimport Protobuf from 'pbf';\nimport {VectorTile, VectorTileFeature} from '@mapbox/vector-tile';\nimport {worldToLngLat} from 'viewport-mercator-project';\n\n/* global fetch */\nconst TILE_SIZE = 512;\nconst MAPBOX_HOST = 'https://a.tiles.mapbox.com';\nconst MAP_SOURCE = '/v4/mapbox.mapbox-streets-v7';\n\nexport function getTileData(host, token, {x, y, z}) {\n  const mapSource = `${host ||\n    MAPBOX_HOST}${MAP_SOURCE}/${z}/${x}/${y}.vector.pbf?access_token=${token}`;\n\n  return fetch(mapSource)\n    .then(response => response.arrayBuffer())\n    .then(buffer => decodeTile(x, y, z, buffer));\n}\n\nexport function decodeTile(x, y, z, arrayBuffer) {\n  const tile = new VectorTile(new Protobuf(arrayBuffer));\n\n  const result = [];\n  const xProj = x * TILE_SIZE;\n  const yProj = y * TILE_SIZE;\n  const scale = Math.pow(2, z);\n\n  const projectFunc = project.bind(null, xProj, yProj, scale);\n\n  /* eslint-disable guard-for-in */\n  const layerName = 'building';\n  const vectorTileLayer = tile.layers[layerName];\n  if (!vectorTileLayer) {\n    return [];\n  }\n  for (let i = 0; i < vectorTileLayer.length; i++) {\n    const vectorTileFeature = vectorTileLayer.feature(i);\n    const features = vectorTileFeatureToProp(vectorTileFeature, projectFunc);\n    features.forEach(f => {\n      f.properties.layer = layerName;\n      if (f.properties.height) {\n        result.push(f);\n      }\n    });\n  }\n  return result;\n}\n\nfunction project(x, y, scale, line, extent) {\n  const sizeToPixel = extent / TILE_SIZE;\n\n  for (let ii = 0; ii < line.length; ii++) {\n    const p = line[ii];\n    // LNGLAT\n    line[ii] = worldToLngLat([x + p[0] / sizeToPixel, y + p[1] / sizeToPixel], scale);\n  }\n}\n\n/* adapted from @mapbox/vector-tile/lib/vectortilefeature.js for better perf */\n/* eslint-disable */\nexport function vectorTileFeatureToProp(vectorTileFeature, project) {\n  let coords = getCoordinates(vectorTileFeature);\n  const type = VectorTileFeature.types[vectorTileFeature.type];\n  const extent = vectorTileFeature.extent;\n  let i;\n  let j;\n\n  coords = classifyRings(coords);\n  for (i = 0; i < coords.length; i++) {\n    for (j = 0; j < coords[i].length; j++) {\n      project(coords[i][j], extent);\n    }\n  }\n\n  return coords.map(coordinates => ({\n    coordinates,\n    properties: vectorTileFeature.properties\n  }));\n}\n\nfunction getCoordinates(vectorTileFeature) {\n  const pbf = vectorTileFeature._pbf;\n  pbf.pos = vectorTileFeature._geometry;\n\n  const end = pbf.readVarint() + pbf.pos;\n  let cmd = 1;\n  let length = 0;\n  let x = 0;\n  let y = 0;\n\n  const lines = [];\n  let line;\n\n  while (pbf.pos < end) {\n    if (length <= 0) {\n      const cmdLen = pbf.readVarint();\n      cmd = cmdLen & 0x7;\n      length = cmdLen >> 3;\n    }\n\n    length--;\n\n    if (cmd === 1 || cmd === 2) {\n      x += pbf.readSVarint();\n      y += pbf.readSVarint();\n\n      if (cmd === 1) {\n        // moveTo\n        if (line) lines.push(line);\n        line = [];\n      }\n\n      line.push([x, y]);\n    } else if (cmd === 7) {\n      // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90\n      if (line) {\n        line.push(line[0].slice()); // closePolygon\n      }\n    } else {\n      throw new Error(`unknown command ${cmd}`);\n    }\n  }\n\n  if (line) lines.push(line);\n\n  return lines;\n}\n\n// classifies an array of rings into polygons with outer rings and holes\n\nfunction classifyRings(rings) {\n  const len = rings.length;\n\n  if (len <= 1) return [rings];\n\n  const polygons = [];\n  let polygon;\n  let ccw;\n\n  for (let i = 0; i < len; i++) {\n    const area = signedArea(rings[i]);\n    if (area === 0) {\n      continue;\n    }\n\n    if (ccw === undefined) {\n      ccw = area < 0;\n    }\n\n    if (ccw === area < 0) {\n      if (polygon) {\n        polygons.push(polygon);\n      }\n      polygon = [rings[i]];\n    } else {\n      polygon.push(rings[i]);\n    }\n  }\n  if (polygon) {\n    polygons.push(polygon);\n  }\n\n  return polygons;\n}\n\nfunction signedArea(ring) {\n  let sum = 0;\n  for (let i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {\n    p1 = ring[i];\n    p2 = ring[j];\n    sum += (p2[0] - p1[0]) * (p1[1] + p2[1]);\n  }\n  return sum;\n}\n"]}