{
  "pandav:/geojson-vt-dev.js": {
    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/geojson-vt-dev\", [], function (module, exports, require, load, process, global) {\n\n  function _typeof(o) {\"@babel/helpers - typeof\";return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (o) {return typeof o;} : function (o) {return o && \"function\" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? \"symbol\" : typeof o;}, _typeof(o);}\n  (function (global, factory) {\n    (typeof exports === \"undefined\" ? \"undefined\" : _typeof(exports)) === 'object' && typeof module !== 'undefined' ? module.exports = factory() : typeof define === 'function' && define.amd ? define(factory) : (global = global || self, global.geojsonvt = factory());\n  })(void 0, function () {\n    'use strict';\n    function simplify(coords, first, last, sqTolerance, stride) {\n      if (stride === void 0) stride = 3;\n      var maxSqDist = sqTolerance;\n      var mid = last - first >> 1;\n      var minPosToMid = last - first;\n      var index;\n      var ax = coords[first];\n      var ay = coords[first + 1];\n      var bx = coords[last];\n      var by = coords[last + 1];\n      for (var i = first + stride; i < last; i += stride) {\n        var d = getSqSegDist(coords[i], coords[i + 1], ax, ay, bx, by);\n        if (d > maxSqDist) {\n          index = i;\n          maxSqDist = d;\n        } else if (d === maxSqDist) {\n          var posToMid = Math.abs(i - mid);\n          if (posToMid < minPosToMid) {\n            index = i;\n            minPosToMid = posToMid;\n          }\n        }\n      }\n      if (maxSqDist > sqTolerance) {\n        if (index - first > stride) {\n          simplify(coords, first, index, sqTolerance, stride);\n        }\n        coords[index + 2] = maxSqDist;\n        if (last - index > stride) {\n          simplify(coords, index, last, sqTolerance, stride);\n        }\n      }\n    }\n    function getSqSegDist(px, py, x, y, bx, by) {\n      var dx = bx - x;\n      var dy = by - y;\n      if (dx !== 0 || dy !== 0) {\n        var t = ((px - x) * dx + (py - y) * dy) / (dx * dx + dy * dy);\n        if (t > 1) {\n          x = bx;\n          y = by;\n        } else if (t > 0) {\n          x += dx * t;\n          y += dy * t;\n        }\n      }\n      dx = px - x;\n      dy = py - y;\n      return dx * dx + dy * dy;\n    }\n    function createFeature(id, type, geom, tags, layer, hasAltitude) {\n      var feature = {\n        id: id == null ? null : id,\n        type: type,\n        geometry: geom,\n        tags: tags,\n        minX: Infinity,\n        minY: Infinity,\n        maxX: -Infinity,\n        maxY: -Infinity };\n\n      if (layer) {\n        feature.layer = layer;\n      }\n      var stride = hasAltitude ? 4 : 3;\n      calcBBox(feature, stride);\n      return feature;\n    }\n    function calcBBox(feature, stride) {\n      var geom = feature.geometry;\n      var type = feature.type;\n      if (type === 'Point' || type === 'MultiPoint' || type === 'LineString') {\n        calcLineBBox(feature, geom, stride);\n      } else if (type === 'Polygon') {\n        calcLineBBox(feature, geom[0], stride);\n      } else if (type === 'MultiLineString') {\n        for (var i = 0, list = geom; i < list.length; i += 1) {\n          var line = list[i];\n          calcLineBBox(feature, line, stride);\n        }\n      } else if (type === 'MultiPolygon') {\n        for (var i$1 = 0, list$1 = geom; i$1 < list$1.length; i$1 += 1) {\n          var polygon = list$1[i$1];\n          calcLineBBox(feature, polygon[0], stride);\n        }\n      }\n      return feature;\n    }\n    function calcLineBBox(feature, geom, stride) {\n      for (var i = 0; i < geom.length; i += stride) {\n        feature.minX = Math.min(feature.minX, geom[i]);\n        feature.minY = Math.min(feature.minY, geom[i + 1]);\n        feature.maxX = Math.max(feature.maxX, geom[i]);\n        feature.maxY = Math.max(feature.maxY, geom[i + 1]);\n      }\n    }\n    function convert(data, options) {\n      var features = [];\n      if (Array.isArray(data)) {\n        for (var i = 0; i < data.length; i++) {\n          convertLayerData(features, data[i].layer, data[i].data, options);\n        }\n        return features;\n      }\n      if (data.type === 'FeatureCollection') {\n        for (var i$1 = 0; i$1 < data.features.length; i$1++) {\n          convertFeature(features, data.features[i$1], options, i$1);\n        }\n      } else if (data.type === 'Feature') {\n        convertFeature(features, data, options);\n      } else {\n        convertFeature(features, {\n          geometry: data },\n        options);\n      }\n      return features;\n    }\n    function convertLayerData(features, layer, data, options) {\n      options.layer = layer;\n      if (data.type === 'FeatureCollection') {\n        for (var i = 0; i < data.features.length; i++) {\n          convertFeature(features, data.features[i], options, i);\n        }\n      } else if (data.type === 'Feature') {\n        convertFeature(features, data, options);\n      } else {\n        convertFeature(features, {\n          geometry: data },\n        options);\n      }\n    }\n    function convertFeature(features, geojson, options, index) {\n      if (!geojson.geometry) {\n        return;\n      }\n      var coords = geojson.geometry.coordinates;\n      var type = geojson.geometry.type;\n      var tolerance = Math.pow(options.tolerance / ((1 << options.maxZoom) * options.extent), 2);\n      var geometry = [];\n      var id = geojson.id;\n      if (options.promoteId) {\n        id = geojson.properties[options.promoteId];\n      } else if (options.generateId) {\n        id = index || 0;\n      }\n      if (type === 'Point') {\n        convertPoint(coords, geometry, options);\n      } else if (type === 'MultiPoint') {\n        for (var i = 0, list = coords; i < list.length; i += 1) {\n          var p = list[i];\n          convertPoint(p, geometry, options);\n        }\n      } else if (type === 'LineString') {\n        convertLine(coords, geometry, tolerance, false, options);\n      } else if (type === 'MultiLineString') {\n        if (options.lineMetrics) {\n          for (var i$1 = 0, list$1 = coords; i$1 < list$1.length; i$1 += 1) {\n            var line = list$1[i$1];\n            geometry = [];\n            convertLine(line, geometry, tolerance, false, options);\n            features.push(createFeature(id, 'LineString', geometry, geojson.properties, options.layer, options.hasAltitude));\n          }\n          return;\n        } else {\n          convertLines(coords, geometry, tolerance, false, options);\n        }\n      } else if (type === 'Polygon') {\n        convertLines(coords, geometry, tolerance, true, options);\n      } else if (type === 'MultiPolygon') {\n        for (var i$2 = 0, list$2 = coords; i$2 < list$2.length; i$2 += 1) {\n          var polygon = list$2[i$2];\n          var newPolygon = [];\n          convertLines(polygon, newPolygon, tolerance, true, options);\n          geometry.push(newPolygon);\n        }\n      } else if (type === 'GeometryCollection') {\n        for (var i$3 = 0, list$3 = geojson.geometry.geometries; i$3 < list$3.length; i$3 += 1) {\n          var singleGeometry = list$3[i$3];\n          convertFeature(features, {\n            id: id,\n            geometry: singleGeometry,\n            properties: geojson.properties },\n          options, index);\n        }\n        return;\n      } else {\n        throw new Error('Input data is not a valid GeoJSON object.');\n      }\n      features.push(createFeature(id, type, geometry, geojson.properties, options.layer, options.hasAltitude));\n    }\n    function convertPoint(coords, out, options) {\n      out.push(projectX(coords[0]), projectY(coords[1], options.projection), 0);\n      if (options.hasAltitude) {\n        if (coords.length > 2) {\n          out.push(coords[2]);\n        } else {\n          out.push(0);\n        }\n      }\n    }\n    function convertLine(ring, out, tolerance, isPolygon, options) {\n      var x0, y0;\n      var size = 0;\n      for (var j = 0; j < ring.length; j++) {\n        var x = projectX(ring[j][0]);\n        var y = projectY(ring[j][1], options.projection);\n        out.push(x, y, 0);\n        if (options.hasAltitude) {\n          if (ring[j].length > 2) {\n            out.push(ring[j][2]);\n          } else {\n            out.push(0);\n          }\n        }\n        if (j > 0) {\n          if (isPolygon) {\n            size += (x0 * y - x * y0) / 2;\n          } else {\n            size += Math.sqrt(Math.pow(x - x0, 2) + Math.pow(y - y0, 2));\n          }\n        }\n        x0 = x;\n        y0 = y;\n      }\n      var stride = options.hasAltitude ? 4 : 3;\n      var last = out.length - stride;\n      out[2] = 1;\n      simplify(out, 0, last, tolerance, stride);\n      out[last + 2] = 1;\n      out.size = Math.abs(size);\n      out.start = 0;\n      out.end = out.size;\n    }\n    function convertLines(rings, out, tolerance, isPolygon, options) {\n      for (var i = 0; i < rings.length; i++) {\n        var geom = [];\n        convertLine(rings[i], geom, tolerance, isPolygon, options);\n        out.push(geom);\n      }\n    }\n    function projectX(x) {\n      return x / 360 + 0.5;\n    }\n    function projectY(y, proj) {\n      switch (proj) {\n        case 'EPSG:4326':\n          return (90 - y) / 360.0;}\n\n      var sin = Math.sin(y * Math.PI / 180);\n      var y2 = 0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI;\n      return y2 < 0 ? 0 : y2 > 1 ? 1 : y2;\n    }\n    function clip(features, scale, k1, k2, axis, minAll, maxAll, options) {\n      k1 /= scale;\n      k2 /= scale;\n      if (minAll >= k1 && maxAll < k2) {\n        return features;\n      } else if (maxAll < k1 || minAll >= k2) {\n        return null;\n      }\n      var clipped = [];\n      for (var i$2 = 0, list$2 = features; i$2 < list$2.length; i$2 += 1) {\n        var feature = list$2[i$2];\n        var geometry = feature.geometry;\n        var type = feature.type;\n        var min = axis === 0 ? feature.minX : feature.minY;\n        var max = axis === 0 ? feature.maxX : feature.maxY;\n        if (min >= k1 && max < k2) {\n          clipped.push(feature);\n          continue;\n        } else if (max < k1 || min >= k2) {\n          continue;\n        }\n        var newGeometry = [];\n        if (type === 'Point' || type === 'MultiPoint') {\n          clipPoints(geometry, newGeometry, k1, k2, axis, options.hasAltitude);\n        } else if (type === 'LineString') {\n          clipLine(geometry, newGeometry, k1, k2, axis, false, options.lineMetrics, options.hasAltitude);\n        } else if (type === 'MultiLineString') {\n          clipLines(geometry, newGeometry, k1, k2, axis, false, options.hasAltitude);\n        } else if (type === 'Polygon') {\n          clipLines(geometry, newGeometry, k1, k2, axis, true, options.hasAltitude);\n        } else if (type === 'MultiPolygon') {\n          for (var i = 0, list = geometry; i < list.length; i += 1) {\n            var polygon = list[i];\n            var newPolygon = [];\n            clipLines(polygon, newPolygon, k1, k2, axis, true, options.hasAltitude);\n            if (newPolygon.length) {\n              newGeometry.push(newPolygon);\n            }\n          }\n        }\n        if (newGeometry.length) {\n          if (options.lineMetrics && type === 'LineString') {\n            for (var i$1 = 0, list$1 = newGeometry; i$1 < list$1.length; i$1 += 1) {\n              var line = list$1[i$1];\n              clipped.push(createFeature(feature.id, type, line, feature.tags, feature.layer, options.hasAltitude));\n            }\n            continue;\n          }\n          if (type === 'LineString' || type === 'MultiLineString') {\n            if (newGeometry.length === 1) {\n              type = 'LineString';\n              newGeometry = newGeometry[0];\n            } else {\n              type = 'MultiLineString';\n            }\n          }\n          if (type === 'Point' || type === 'MultiPoint') {\n            type = newGeometry.length === 3 ? 'Point' : 'MultiPoint';\n          }\n          clipped.push(createFeature(feature.id, type, newGeometry, feature.tags, feature.layer, options.hasAltitude));\n        }\n      }\n      return clipped.length ? clipped : null;\n    }\n    function clipPoints(geom, newGeom, k1, k2, axis, hasAltitude) {\n      var stride = hasAltitude ? 4 : 3;\n      for (var i = 0; i < geom.length; i += stride) {\n        var a = geom[i + axis];\n        if (a >= k1 && a <= k2) {\n          addPoint(newGeom, geom[i], geom[i + 1], geom[i + 2]);\n          if (hasAltitude) {\n            newGeom.push(geom[i + 3]);\n          }\n        }\n      }\n    }\n    function clipLine(geom, newGeom, k1, k2, axis, isPolygon, trackMetrics, hasAltitude) {\n      var slice = newSlice(geom);\n      var intersect = axis === 0 ? intersectX : intersectY;\n      var len = geom.start;\n      var segLen, t;\n      var stride = hasAltitude ? 4 : 3;\n      var count = isPolygon ? geom.length : geom.length - stride;\n      for (var i = 0; i < count; i += stride) {\n        var ax = geom[i];\n        var ay = geom[i + 1];\n        var az = geom[i + 2];\n        var bx = void 0,\n        by = void 0;\n        if (isPolygon && i === count - stride) {\n          bx = geom[0];\n          by = geom[1];\n        } else {\n          bx = geom[i + stride];\n          by = geom[i + stride + 1];\n        }\n        var ah = void 0,\n        bh = void 0;\n        if (hasAltitude) {\n          ah = geom[i + 3];\n          bh = isPolygon && i === count - stride ? geom[3] : geom[i + stride + 3];\n        }\n        var a = axis === 0 ? ax : ay;\n        var b = axis === 0 ? bx : by;\n        var exited = false;\n        if (trackMetrics) {\n          segLen = Math.sqrt(Math.pow(ax - bx, 2) + Math.pow(ay - by, 2));\n        }\n        if (a < k1) {\n          if (b > k1) {\n            t = intersect(slice, ax, ay, bx, by, k1);\n            if (hasAltitude) {\n              slice.push(newHeight(ah, bh, t));\n            }\n            if (trackMetrics) {\n              slice.start = len + segLen * t;\n            }\n          }\n        } else if (a > k2) {\n          if (b < k2) {\n            t = intersect(slice, ax, ay, bx, by, k2);\n            if (hasAltitude) {\n              slice.push(newHeight(ah, bh, t));\n            }\n            if (trackMetrics) {\n              slice.start = len + segLen * t;\n            }\n          }\n        } else {\n          addPoint(slice, ax, ay, az);\n          if (hasAltitude) {\n            slice.push(ah);\n          }\n        }\n        if (b < k1 && a >= k1) {\n          t = intersect(slice, ax, ay, bx, by, k1);\n          if (hasAltitude) {\n            slice.push(newHeight(ah, bh, t));\n          }\n          exited = true;\n        }\n        if (b > k2 && a <= k2) {\n          t = intersect(slice, ax, ay, bx, by, k2);\n          if (hasAltitude) {\n            slice.push(newHeight(ah, bh, t));\n          }\n          exited = true;\n        }\n        if (!isPolygon && exited) {\n          if (trackMetrics) {\n            slice.end = len + segLen * t;\n          }\n          newGeom.push(slice);\n          slice = newSlice(geom);\n        }\n        if (trackMetrics) {\n          len += segLen;\n        }\n      }\n      var last = geom.length - stride;\n      if (!isPolygon) {\n        var ax$1 = geom[last];\n        var ay$1 = geom[last + 1];\n        var az$1 = geom[last + 2];\n        var a$1 = axis === 0 ? ax$1 : ay$1;\n        if (a$1 >= k1 && a$1 <= k2) {\n          addPoint(slice, ax$1, ay$1, az$1);\n        }\n        if (a$1 >= k1 && a$1 <= k2) {\n          if (hasAltitude) {\n            var ah$1 = geom[last + 3];\n            slice.push(ah$1);\n          }\n        }\n      }\n      last = slice.length - stride;\n      if (isPolygon && last >= stride && (slice[last] !== slice[0] || slice[last + 1] !== slice[1])) {\n        addPoint(slice, slice[0], slice[1], slice[2]);\n        if (hasAltitude) {\n          slice.push(slice[3]);\n        }\n      }\n      if (slice.length) {\n        newGeom.push(slice);\n      }\n    }\n    function newSlice(line) {\n      var slice = [];\n      slice.size = line.size;\n      slice.start = line.start;\n      slice.end = line.end;\n      return slice;\n    }\n    function clipLines(geom, newGeom, k1, k2, axis, isPolygon, hasAltitude) {\n      for (var i = 0, list = geom; i < list.length; i += 1) {\n        var line = list[i];\n        clipLine(line, newGeom, k1, k2, axis, isPolygon, false, hasAltitude);\n      }\n    }\n    function addPoint(out, x, y, z) {\n      out.push(x, y, z);\n    }\n    function intersectX(out, ax, ay, bx, by, x) {\n      var t = (x - ax) / (bx - ax);\n      addPoint(out, x, ay + (by - ay) * t, 1);\n      return t;\n    }\n    function intersectY(out, ax, ay, bx, by, y) {\n      var t = (y - ay) / (by - ay);\n      addPoint(out, ax + (bx - ax) * t, y, 1);\n      return t;\n    }\n    function newHeight(ah, bh, t) {\n      return ah + (bh - ah) * t;\n    }\n    function wrap(features, options) {\n      var buffer = options.buffer / options.extent;\n      var merged = features;\n      var left = clip(features, 1, -1 - buffer, buffer, 0, -1, 2, options);\n      var right = clip(features, 1, 1 - buffer, 2 + buffer, 0, -1, 2, options);\n      if (left || right) {\n        merged = clip(features, 1, -buffer, 1 + buffer, 0, -1, 2, options) || [];\n        if (left) {\n          merged = shiftFeatureCoords(left, 1, options.hasAltitude).concat(merged);\n        }\n        if (right) {\n          merged = merged.concat(shiftFeatureCoords(right, -1, options.hasAltitude));\n        }\n      }\n      return merged;\n    }\n    function shiftFeatureCoords(features, offset, hasAltitude) {\n      var newFeatures = [];\n      for (var i = 0; i < features.length; i++) {\n        var feature = features[i];\n        var type = feature.type;\n        var newGeometry = void 0;\n        if (type === 'Point' || type === 'MultiPoint' || type === 'LineString') {\n          newGeometry = shiftCoords(feature.geometry, offset, hasAltitude);\n        } else if (type === 'MultiLineString' || type === 'Polygon') {\n          newGeometry = [];\n          for (var i$1 = 0, list = feature.geometry; i$1 < list.length; i$1 += 1) {\n            var line = list[i$1];\n            newGeometry.push(shiftCoords(line, offset, hasAltitude));\n          }\n        } else if (type === 'MultiPolygon') {\n          newGeometry = [];\n          for (var i$3 = 0, list$2 = feature.geometry; i$3 < list$2.length; i$3 += 1) {\n            var polygon = list$2[i$3];\n            var newPolygon = [];\n            for (var i$2 = 0, list$1 = polygon; i$2 < list$1.length; i$2 += 1) {\n              var line$1 = list$1[i$2];\n              newPolygon.push(shiftCoords(line$1, offset, hasAltitude));\n            }\n            newGeometry.push(newPolygon);\n          }\n        }\n        newFeatures.push(createFeature(feature.id, type, newGeometry, feature.tags, feature.layer, hasAltitude));\n      }\n      return newFeatures;\n    }\n    function shiftCoords(points, offset, hasAltitude) {\n      var newPoints = [];\n      newPoints.size = points.size;\n      if (points.start !== undefined) {\n        newPoints.start = points.start;\n        newPoints.end = points.end;\n      }\n      var stride = hasAltitude ? 4 : 3;\n      for (var i = 0; i < points.length; i += stride) {\n        newPoints.push(points[i] + offset, points[i + 1], points[i + 2]);\n        if (hasAltitude) {\n          newPoints.push(points[i + 3]);\n        }\n      }\n      return newPoints;\n    }\n    function transformTile(tile, extent, hasAltitude) {\n      if (tile.transformed) {\n        return tile;\n      }\n      var z2 = 1 << tile.z;\n      var tx = tile.x;\n      var ty = tile.y;\n      var stride = hasAltitude ? 3 : 2;\n      for (var i = 0, list = tile.features; i < list.length; i += 1) {\n        var feature = list[i];\n        var geom = feature.geometry;\n        var type = feature.type;\n        feature.geometry = [];\n        if (type === 1) {\n          for (var j = 0; j < geom.length; j += stride) {\n            feature.geometry.push(transformPoint(geom[j], geom[j + 1], extent, z2, tx, ty));\n            if (hasAltitude) {\n              feature.geometry[feature.geometry.length - 1].push(geom[j + 2]);\n            }\n          }\n        } else {\n          for (var j$1 = 0; j$1 < geom.length; j$1++) {\n            var ring = [];\n            for (var k = 0; k < geom[j$1].length; k += stride) {\n              ring.push(transformPoint(geom[j$1][k], geom[j$1][k + 1], extent, z2, tx, ty));\n              if (hasAltitude) {\n                ring[ring.length - 1].push(geom[j$1][k + 2]);\n              }\n            }\n            feature.geometry.push(ring);\n          }\n        }\n      }\n      tile.transformed = true;\n      return tile;\n    }\n    function transformPoint(x, y, extent, z2, tx, ty) {\n      return [Math.round(extent * (x * z2 - tx)), Math.round(extent * (y * z2 - ty))];\n    }\n    function createTile(features, z, tx, ty, options) {\n      var tolerance = z === options.maxZoom ? 0 : options.tolerance / ((1 << z) * options.extent);\n      var tile = {\n        features: [],\n        numPoints: 0,\n        numSimplified: 0,\n        numFeatures: features.length,\n        source: null,\n        x: tx,\n        y: ty,\n        z: z,\n        transformed: false,\n        minX: 2,\n        minY: 1,\n        maxX: -1,\n        maxY: 0 };\n\n      for (var i = 0, list = features; i < list.length; i += 1) {\n        var feature = list[i];\n        addFeature(tile, feature, tolerance, options);\n      }\n      return tile;\n    }\n    function addFeature(tile, feature, tolerance, options) {\n      var geom = feature.geometry;\n      var type = feature.type;\n      var simplified = [];\n      var stride = options.hasAltitude ? 4 : 3;\n      tile.minX = Math.min(tile.minX, feature.minX);\n      tile.minY = Math.min(tile.minY, feature.minY);\n      tile.maxX = Math.max(tile.maxX, feature.maxX);\n      tile.maxY = Math.max(tile.maxY, feature.maxY);\n      if (type === 'Point' || type === 'MultiPoint') {\n        for (var i = 0; i < geom.length; i += stride) {\n          simplified.push(geom[i], geom[i + 1]);\n          if (options.hasAltitude) {\n            simplified.push(geom[i + 3]);\n          }\n          tile.numPoints++;\n          tile.numSimplified++;\n        }\n      } else if (type === 'LineString') {\n        addLine(simplified, geom, tile, tolerance, false, false, options);\n      } else if (type === 'MultiLineString' || type === 'Polygon') {\n        for (var i$1 = 0; i$1 < geom.length; i$1++) {\n          addLine(simplified, geom[i$1], tile, tolerance, type === 'Polygon', i$1 === 0, options);\n        }\n      } else if (type === 'MultiPolygon') {\n        for (var k = 0; k < geom.length; k++) {\n          var polygon = geom[k];\n          for (var i$2 = 0; i$2 < polygon.length; i$2++) {\n            addLine(simplified, polygon[i$2], tile, tolerance, true, i$2 === 0, options);\n          }\n        }\n      }\n      if (simplified.length) {\n        var tags = feature.tags || null;\n        if (type === 'LineString' && options.lineMetrics) {\n          tags = {};\n          for (var key in feature.tags) {\n            tags[key] = feature.tags[key];\n          }\n          tags['mapbox_clip_start'] = geom.start / geom.size;\n          tags['mapbox_clip_end'] = geom.end / geom.size;\n        }\n        var tileFeature = {\n          geometry: simplified,\n          type: type === 'Polygon' || type === 'MultiPolygon' ? 3 : type === 'LineString' || type === 'MultiLineString' ? 2 : 1,\n          tags: tags };\n\n        if (feature.layer) {\n          tileFeature.layer = feature.layer;\n        }\n        if (feature.id !== null) {\n          tileFeature.id = feature.id;\n        }\n        tile.features.push(tileFeature);\n      }\n    }\n    function keepSimplified(geom, i, hasAltitude) {\n      return geom[i + 2] === 0 && geom[i + 3] > 0 && hasAltitude;\n    }\n    function addLine(result, geom, tile, tolerance, isPolygon, isOuter, options) {\n      var sqTolerance = tolerance * tolerance;\n      var hasAltitude = options.hasAltitude;\n      var disableFilter = options.disableFilter;\n      var stride = hasAltitude ? 4 : 3;\n      if (!disableFilter && tolerance > 0 && geom.size < (isPolygon ? sqTolerance : tolerance)) {\n        tile.numPoints += geom.length / stride;\n        return;\n      }\n      var ring = [];\n      for (var i = 0; i < geom.length; i += stride) {\n        if (tolerance === 0 || geom[i + 2] > sqTolerance || keepSimplified(geom, i, hasAltitude)) {\n          tile.numSimplified++;\n          ring.push(geom[i], geom[i + 1]);\n          if (hasAltitude) {\n            ring.push(geom[i + 3]);\n          }\n        }\n        tile.numPoints++;\n      }\n      if (isPolygon) {\n        rewind(ring, isOuter, hasAltitude);\n      }\n      result.push(ring);\n    }\n    function rewind(ring, clockwise, hasAltitude) {\n      var stride = hasAltitude ? 3 : 2;\n      var area = 0;\n      for (var i = 0, len = ring.length, j = len - stride; i < len; j = i, i += stride) {\n        area += (ring[i] - ring[j]) * (ring[i + 1] + ring[j + 1]);\n      }\n      if (area > 0 === clockwise) {\n        var posX = stride;\n        var posY = stride - 1;\n        var posA = stride - 2;\n        for (var i$1 = 0, len$1 = ring.length; i$1 < len$1 / 2; i$1 += stride) {\n          var x = ring[i$1];\n          var y = ring[i$1 + 1];\n          var altitude = void 0;\n          if (hasAltitude) {\n            altitude = ring[i$1 + 2];\n          }\n          ring[i$1] = ring[len$1 - posX - i$1];\n          ring[i$1 + 1] = ring[len$1 - posY - i$1];\n          if (hasAltitude) {\n            ring[i$1 + 2] = ring[len$1 - posA - i$1];\n          }\n          ring[len$1 - posX - i$1] = x;\n          ring[len$1 - posY - i$1] = y;\n          if (hasAltitude) {\n            ring[len$1 - posA - i$1] = altitude;\n          }\n        }\n      }\n    }\n    var defaultOptions = {\n      maxZoom: 14,\n      indexMaxZoom: 5,\n      indexMaxPoints: 100000,\n      tolerance: 3,\n      extent: 4096,\n      buffer: 64,\n      lineMetrics: false,\n      promoteId: null,\n      generateId: false,\n      hasAltitude: false,\n      disableFilter: false,\n      debug: 0 };\n\n    var GeoJSONVT = function GeoJSONVT(data, options) {\n      options = this.options = extend(Object.create(defaultOptions), options);\n      var debug = options.debug;\n      if (debug) {\n        console.time('preprocess data');\n      }\n      if (options.maxZoom < 0 || options.maxZoom > 24) {\n        throw new Error('maxZoom should be in the 0-24 range');\n      }\n      if (options.promoteId && options.generateId) {\n        throw new Error('promoteId and generateId cannot be used together.');\n      }\n      var features = convert(data, options);\n      this.tiles = {};\n      this.tileCoords = [];\n      if (debug) {\n        console.timeEnd('preprocess data');\n        console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints);\n        console.time('generate tiles');\n        this.stats = {};\n        this.total = 0;\n      }\n      features = wrap(features, options);\n      if (features.length) {\n        this.splitTile(features, 0, 0, 0);\n      }\n      if (debug) {\n        if (features.length) {\n          console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints);\n        }\n        console.timeEnd('generate tiles');\n        console.log('tiles generated:', this.total, JSON.stringify(this.stats));\n      }\n    };\n    GeoJSONVT.prototype.splitTile = function splitTile(features, z, x, y, cz, cx, cy) {\n      var stack = [features, z, x, y];\n      var options = this.options;\n      var debug = options.debug;\n      while (stack.length) {\n        y = stack.pop();\n        x = stack.pop();\n        z = stack.pop();\n        features = stack.pop();\n        var z2 = 1 << z;\n        var id = toID(z, x, y);\n        var tile = this.tiles[id];\n        if (!tile) {\n          if (debug > 1) {\n            console.time('creation');\n          }\n          tile = this.tiles[id] = createTile(features, z, x, y, options);\n          this.tileCoords.push({\n            z: z,\n            x: x,\n            y: y });\n\n          if (debug) {\n            if (debug > 1) {\n              console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)', z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified);\n              console.timeEnd('creation');\n            }\n            var key = \"z\" + z;\n            this.stats[key] = (this.stats[key] || 0) + 1;\n            this.total++;\n          }\n        }\n        tile.source = features;\n        if (cz == null) {\n          if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) {\n            continue;\n          }\n        } else if (z === options.maxZoom || z === cz) {\n          continue;\n        } else if (cz != null) {\n          var zoomSteps = cz - z;\n          if (x !== cx >> zoomSteps || y !== cy >> zoomSteps) {\n            continue;\n          }\n        }\n        tile.source = null;\n        if (features.length === 0) {\n          continue;\n        }\n        if (debug > 1) {\n          console.time('clipping');\n        }\n        var k1 = 0.5 * options.buffer / options.extent;\n        var k2 = 0.5 - k1;\n        var k3 = 0.5 + k1;\n        var k4 = 1 + k1;\n        var tl = null;\n        var bl = null;\n        var tr = null;\n        var br = null;\n        var left = clip(features, z2, x - k1, x + k3, 0, tile.minX, tile.maxX, options);\n        var right = clip(features, z2, x + k2, x + k4, 0, tile.minX, tile.maxX, options);\n        features = null;\n        if (left) {\n          tl = clip(left, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options);\n          bl = clip(left, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options);\n          left = null;\n        }\n        if (right) {\n          tr = clip(right, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options);\n          br = clip(right, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options);\n          right = null;\n        }\n        if (debug > 1) {\n          console.timeEnd('clipping');\n        }\n        stack.push(tl || [], z + 1, x * 2, y * 2);\n        stack.push(bl || [], z + 1, x * 2, y * 2 + 1);\n        stack.push(tr || [], z + 1, x * 2 + 1, y * 2);\n        stack.push(br || [], z + 1, x * 2 + 1, y * 2 + 1);\n      }\n    };\n    GeoJSONVT.prototype.getTile = function getTile(z, x, y) {\n      z = +z;\n      x = +x;\n      y = +y;\n      var options = this.options;\n      var extent = options.extent;\n      var debug = options.debug;\n      var hasAltitude = options.hasAltitude;\n      var wrapX = options.wrapX;\n      if (z < 0 || z > 24) {\n        return null;\n      }\n      if (wrapX) {\n        var z2 = 1 << z;\n        x = x + z2 & z2 - 1;\n      }\n      var id = toID(z, x, y);\n      if (this.tiles[id]) {\n        return transformTile(this.tiles[id], extent, hasAltitude);\n      }\n      if (debug > 1) {\n        console.log('drilling down to z%d-%d-%d', z, x, y);\n      }\n      var z0 = z;\n      var x0 = x;\n      var y0 = y;\n      var parent;\n      while (!parent && z0 > 0) {\n        z0--;\n        x0 = x0 >> 1;\n        y0 = y0 >> 1;\n        parent = this.tiles[toID(z0, x0, y0)];\n      }\n      if (!parent || !parent.source) {\n        return null;\n      }\n      if (debug > 1) {\n        console.log('found parent tile z%d-%d-%d', z0, x0, y0);\n        console.time('drilling down');\n      }\n      this.splitTile(parent.source, z0, x0, y0, z, x, y);\n      if (debug > 1) {\n        console.timeEnd('drilling down');\n      }\n      return this.tiles[id] ? transformTile(this.tiles[id], extent, hasAltitude) : null;\n    };\n    function toID(z, x, y) {\n      return ((1 << z) * y + x) * 32 + z;\n    }\n    function extend(dest, src) {\n      for (var i in src) {\n        dest[i] = src[i];\n      }\n      return dest;\n    }\n    function geojsonvt(data, options) {\n      return new GeoJSONVT(data, options);\n    }\n    return geojsonvt;\n  });return module.exports;});",
    "requires": [],
    "buildLevel": 0,
    "fileName": "/geojson-vt-dev.js"
  },
  "pandav:/src/clip.js": {
    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/clip\", [\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/feature\"], function (module, exports, require, load, process, global) {\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true });\n\n  exports.default = clip;\n  var _feature = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/feature'));\n  function _interopRequireDefault(e) {return e && e.__esModule ? e : { default: e };}\n  function _createForOfIteratorHelper(r, e) {var t = \"undefined\" != typeof Symbol && r[Symbol.iterator] || r[\"@@iterator\"];if (!t) {if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && \"number\" == typeof r.length) {t && (r = t);var _n = 0,F = function F() {};return { s: F, n: function n() {return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] };}, e: function e(r) {throw r;}, f: F };}throw new TypeError(\"Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");}var o,a = !0,u = !1;return { s: function s() {t = t.call(r);}, n: function n() {var r = t.next();return a = r.done, r;}, e: function e(r) {u = !0, o = r;}, f: function f() {try {a || null == t.return || t.return();} finally {if (u) throw o;}} };}\n  function _unsupportedIterableToArray(r, a) {if (r) {if (\"string\" == typeof r) return _arrayLikeToArray(r, a);var t = {}.toString.call(r).slice(8, -1);return \"Object\" === t && r.constructor && (t = r.constructor.name), \"Map\" === t || \"Set\" === t ? Array.from(r) : \"Arguments\" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;}}\n  function _arrayLikeToArray(r, a) {(null == a || a > r.length) && (a = r.length);for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];return n;}\n  function clip(features, scale, k1, k2, axis, minAll, maxAll, options) {\n    k1 /= scale;\n    k2 /= scale;\n    if (minAll >= k1 && maxAll < k2) return features;else if (maxAll < k1 || minAll >= k2) return null;\n    var clipped = [];\n    var _iterator = _createForOfIteratorHelper(features),\n    _step;\n    try {\n      for (_iterator.s(); !(_step = _iterator.n()).done;) {\n        var feature = _step.value;\n        var geometry = feature.geometry;\n        var type = feature.type;\n        var min = axis === 0 ? feature.minX : feature.minY;\n        var max = axis === 0 ? feature.maxX : feature.maxY;\n        if (min >= k1 && max < k2) {\n          clipped.push(feature);\n          continue;\n        } else if (max < k1 || min >= k2) {\n          continue;\n        }\n        var newGeometry = [];\n        if (type === 'Point' || type === 'MultiPoint') {\n          clipPoints(geometry, newGeometry, k1, k2, axis, options.hasAltitude);\n        } else if (type === 'LineString') {\n          clipLine(geometry, newGeometry, k1, k2, axis, false, options.lineMetrics, options.hasAltitude);\n        } else if (type === 'MultiLineString') {\n          clipLines(geometry, newGeometry, k1, k2, axis, false, options.hasAltitude);\n        } else if (type === 'Polygon') {\n          clipLines(geometry, newGeometry, k1, k2, axis, true, options.hasAltitude);\n        } else if (type === 'MultiPolygon') {\n          var _iterator2 = _createForOfIteratorHelper(geometry),\n          _step2;\n          try {\n            for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {\n              var polygon = _step2.value;\n              var newPolygon = [];\n              clipLines(polygon, newPolygon, k1, k2, axis, true, options.hasAltitude);\n              if (newPolygon.length) {\n                newGeometry.push(newPolygon);\n              }\n            }\n          } catch (err) {\n            _iterator2.e(err);\n          } finally {\n            _iterator2.f();\n          }\n        }\n        if (newGeometry.length) {\n          if (options.lineMetrics && type === 'LineString') {\n            var _iterator3 = _createForOfIteratorHelper(newGeometry),\n            _step3;\n            try {\n              for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {\n                var line = _step3.value;\n                clipped.push((0, _feature.default)(feature.id, type, line, feature.tags, feature.layer, options.hasAltitude));\n              }\n            } catch (err) {\n              _iterator3.e(err);\n            } finally {\n              _iterator3.f();\n            }\n            continue;\n          }\n          if (type === 'LineString' || type === 'MultiLineString') {\n            if (newGeometry.length === 1) {\n              type = 'LineString';\n              newGeometry = newGeometry[0];\n            } else {\n              type = 'MultiLineString';\n            }\n          }\n          if (type === 'Point' || type === 'MultiPoint') {\n            type = newGeometry.length === 3 ? 'Point' : 'MultiPoint';\n          }\n          clipped.push((0, _feature.default)(feature.id, type, newGeometry, feature.tags, feature.layer, options.hasAltitude));\n        }\n      }\n    } catch (err) {\n      _iterator.e(err);\n    } finally {\n      _iterator.f();\n    }\n    return clipped.length ? clipped : null;\n  }\n  function clipPoints(geom, newGeom, k1, k2, axis, hasAltitude) {\n    var stride = hasAltitude ? 4 : 3;\n    for (var i = 0; i < geom.length; i += stride) {\n      var a = geom[i + axis];\n      if (a >= k1 && a <= k2) {\n        addPoint(newGeom, geom[i], geom[i + 1], geom[i + 2]);\n        if (hasAltitude) {\n          newGeom.push(geom[i + 3]);\n        }\n      }\n    }\n  }\n  function clipLine(geom, newGeom, k1, k2, axis, isPolygon, trackMetrics, hasAltitude) {\n    var slice = newSlice(geom);\n    var intersect = axis === 0 ? intersectX : intersectY;\n    var len = geom.start;\n    var segLen, t;\n    var stride = hasAltitude ? 4 : 3;\n    var count = isPolygon ? geom.length : geom.length - stride;\n    for (var i = 0; i < count; i += stride) {\n      var ax = geom[i];\n      var ay = geom[i + 1];\n      var az = geom[i + 2];\n      var bx = void 0,\n      by = void 0;\n      if (isPolygon && i === count - stride) {\n        bx = geom[0];\n        by = geom[1];\n      } else {\n        bx = geom[i + stride];\n        by = geom[i + stride + 1];\n      }\n      var ah = void 0,\n      bh = void 0;\n      if (hasAltitude) {\n        ah = geom[i + 3];\n        bh = isPolygon && i === count - stride ? geom[3] : geom[i + stride + 3];\n      }\n      var a = axis === 0 ? ax : ay;\n      var b = axis === 0 ? bx : by;\n      var exited = false;\n      if (trackMetrics) segLen = Math.sqrt(Math.pow(ax - bx, 2) + Math.pow(ay - by, 2));\n      if (a < k1) {\n        if (b > k1) {\n          t = intersect(slice, ax, ay, bx, by, k1);\n          if (hasAltitude) {\n            slice.push(newHeight(ah, bh, t));\n          }\n          if (trackMetrics) slice.start = len + segLen * t;\n        }\n      } else if (a > k2) {\n        if (b < k2) {\n          t = intersect(slice, ax, ay, bx, by, k2);\n          if (hasAltitude) {\n            slice.push(newHeight(ah, bh, t));\n          }\n          if (trackMetrics) slice.start = len + segLen * t;\n        }\n      } else {\n        addPoint(slice, ax, ay, az);\n        if (hasAltitude) {\n          slice.push(ah);\n        }\n      }\n      if (b < k1 && a >= k1) {\n        t = intersect(slice, ax, ay, bx, by, k1);\n        if (hasAltitude) {\n          slice.push(newHeight(ah, bh, t));\n        }\n        exited = true;\n      }\n      if (b > k2 && a <= k2) {\n        t = intersect(slice, ax, ay, bx, by, k2);\n        if (hasAltitude) {\n          slice.push(newHeight(ah, bh, t));\n        }\n        exited = true;\n      }\n      if (!isPolygon && exited) {\n        if (trackMetrics) slice.end = len + segLen * t;\n        newGeom.push(slice);\n        slice = newSlice(geom);\n      }\n      if (trackMetrics) len += segLen;\n    }\n    var last = geom.length - stride;\n    if (!isPolygon) {\n      var _ax = geom[last];\n      var _ay = geom[last + 1];\n      var _az = geom[last + 2];\n      var _a = axis === 0 ? _ax : _ay;\n      if (_a >= k1 && _a <= k2) addPoint(slice, _ax, _ay, _az);\n      if (_a >= k1 && _a <= k2) {\n        if (hasAltitude) {\n          var _ah = geom[last + 3];\n          slice.push(_ah);\n        }\n      }\n    }\n    last = slice.length - stride;\n    if (isPolygon && last >= stride && (slice[last] !== slice[0] || slice[last + 1] !== slice[1])) {\n      addPoint(slice, slice[0], slice[1], slice[2]);\n      if (hasAltitude) {\n        slice.push(slice[3]);\n      }\n    }\n    if (slice.length) {\n      newGeom.push(slice);\n    }\n  }\n  function newSlice(line) {\n    var slice = [];\n    slice.size = line.size;\n    slice.start = line.start;\n    slice.end = line.end;\n    return slice;\n  }\n  function clipLines(geom, newGeom, k1, k2, axis, isPolygon, hasAltitude) {\n    var _iterator4 = _createForOfIteratorHelper(geom),\n    _step4;\n    try {\n      for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {\n        var line = _step4.value;\n        clipLine(line, newGeom, k1, k2, axis, isPolygon, false, hasAltitude);\n      }\n    } catch (err) {\n      _iterator4.e(err);\n    } finally {\n      _iterator4.f();\n    }\n  }\n  function addPoint(out, x, y, z) {\n    out.push(x, y, z);\n  }\n  function intersectX(out, ax, ay, bx, by, x) {\n    var t = (x - ax) / (bx - ax);\n    addPoint(out, x, ay + (by - ay) * t, 1);\n    return t;\n  }\n  function intersectY(out, ax, ay, bx, by, y) {\n    var t = (y - ay) / (by - ay);\n    addPoint(out, ax + (bx - ax) * t, y, 1);\n    return t;\n  }\n  function newHeight(ah, bh, t) {\n    return ah + (bh - ah) * t;\n  }return module.exports;});",
    "requires": [
      "pandav:/src/feature.js"
    ],
    "buildLevel": 0,
    "fileName": "/src/clip.js"
  },
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(n = r, i = o) : s > 0 && (n += l * s, i += a * s);\n      }\n      return (l = t - n) * l + (a = e - i) * a;\n    }\n    function e(t, e, i, r, o, l) {\n      var a = {\n        id: null == t ? null : t,\n        type: e,\n        geometry: i,\n        tags: r,\n        minX: 1 / 0,\n        minY: 1 / 0,\n        maxX: -1 / 0,\n        maxY: -1 / 0 };\n\n      return o && (a.layer = o), function (t, e) {\n        var i = t.geometry,\n        r = t.type;\n        if (\"Point\" === r || \"MultiPoint\" === r || \"LineString\" === r) n(t, i, e);else if (\"Polygon\" === r) n(t, i[0], e);else if (\"MultiLineString\" === r) for (var o = 0, l = i; o < l.length; o += 1) {\n          var a = l[o];\n          n(t, a, e);\n        } else if (\"MultiPolygon\" === r) for (var s = 0, u = i; s < u.length; s += 1) {\n          var h = u[s];\n          n(t, h[0], e);\n        }\n      }(a, l ? 4 : 3), a;\n    }\n    function n(t, e, n) {\n      for (var i = 0; i < e.length; i += n) t.minX = Math.min(t.minX, e[i]), t.minY = Math.min(t.minY, e[i + 1]), t.maxX = Math.max(t.maxX, e[i]), t.maxY = Math.max(t.maxY, e[i + 1]);\n    }\n    function i(t, e, n, i) {\n      if (i.layer = e, \"FeatureCollection\" === n.type) for (var o = 0; o < n.features.length; o++) r(t, n.features[o], i, o);else \"Feature\" === n.type ? r(t, n, i) : r(t, {\n        geometry: n },\n      i);\n    }\n    function r(t, n, i, s) {\n      if (n.geometry) {\n        var u = n.geometry.coordinates,\n        h = n.geometry.type,\n        f = Math.pow(i.tolerance / ((1 << i.maxZoom) * i.extent), 2),\n        g = [],\n        m = n.id;\n        if (i.promoteId ? m = n.properties[i.promoteId] : i.generateId && (m = s || 0), \"Point\" === h) o(u, g, i);else if (\"MultiPoint\" === h) for (var p = 0, d = u; p < d.length; p += 1) {\n          o(d[p], g, i);\n        } else if (\"LineString\" === h) l(u, g, f, !1, i);else if (\"MultiLineString\" === h) {\n          if (i.lineMetrics) {\n            for (var c = 0, v = u; c < v.length; c += 1) {\n              l(v[c], g = [], f, !1, i), t.push(e(m, \"LineString\", g, n.properties, i.layer, i.hasAltitude));\n            }\n            return;\n          }\n          a(u, g, f, !1, i);\n        } else if (\"Polygon\" === h) a(u, g, f, !0, i);else {\n          if (\"MultiPolygon\" !== h) {\n            if (\"GeometryCollection\" === h) {\n              for (var y = 0, x = n.geometry.geometries; y < x.length; y += 1) {\n                r(t, {\n                  id: m,\n                  geometry: x[y],\n                  properties: n.properties },\n                i, s);\n              }\n              return;\n            }\n            throw new Error(\"Input data is not a valid GeoJSON object.\");\n          }\n          for (var M = 0, P = u; M < P.length; M += 1) {\n            var S = [];\n            a(P[M], S, f, !0, i), g.push(S);\n          }\n        }\n        t.push(e(m, h, g, n.properties, i.layer, i.hasAltitude));\n      }\n    }\n    function o(t, e, n) {\n      e.push(s(t[0]), u(t[1], n.projection), 0), n.hasAltitude && (t.length > 2 ? e.push(t[2]) : e.push(0));\n    }\n    function l(e, n, i, r, o) {\n      for (var l, a, h = 0, f = 0; f < e.length; f++) {\n        var g = s(e[f][0]),\n        m = u(e[f][1], o.projection);\n        n.push(g, m, 0), o.hasAltitude && (e[f].length > 2 ? n.push(e[f][2]) : n.push(0)), f > 0 && (h += r ? 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E : F;\n        if (C >= n && C <= i && d(h, E, F, j), C >= n && C <= i && a) {\n          var T = t[Z + 3];\n          h.push(T);\n        }\n      }\n      Z = h.length - p, o && Z >= p && (h[Z] !== h[0] || h[Z + 1] !== h[1]) && (d(h, h[0], h[1], h[2]), a && h.push(h[3])), h.length && e.push(h);\n    }\n    function m(t) {\n      var e = [];\n      return e.size = t.size, e.start = t.start, e.end = t.end, e;\n    }\n    function p(t, e, n, i, r, o, l) {\n      for (var a = 0, s = t; a < s.length; a += 1) {\n        g(s[a], e, n, i, r, o, !1, l);\n      }\n    }\n    function d(t, e, n, i) {\n      t.push(e, n, i);\n    }\n    function c(t, e, n, i, r, o) {\n      var l = (o - e) / (i - e);\n      return d(t, o, n + (r - n) * l, 1), l;\n    }\n    function v(t, e, n, i, r, o) {\n      var l = (o - n) / (r - n);\n      return d(t, e + (i - e) * l, o, 1), l;\n    }\n    function y(t, e, n) {\n      return t + (e - t) * n;\n    }\n    function x(t, n, i) {\n      for (var r = [], o = 0; o < t.length; o++) {\n        var l = t[o],\n        a = l.type,\n        s = void 0;\n        if (\"Point\" === a || \"MultiPoint\" === a || \"LineString\" === a) s = M(l.geometry, n, i);else if (\"MultiLineString\" === a || \"Polygon\" === a) {\n          s = [];\n          for (var u = 0, h = l.geometry; u < h.length; u += 1) {\n            var f = h[u];\n            s.push(M(f, n, i));\n          }\n        } else if (\"MultiPolygon\" === a) {\n          s = [];\n          for (var g = 0, m = l.geometry; g < m.length; g += 1) {\n            for (var p = [], d = 0, c = m[g]; d < c.length; d += 1) {\n              var v = c[d];\n              p.push(M(v, n, i));\n            }\n            s.push(p);\n          }\n        }\n        r.push(e(l.id, a, s, l.tags, l.layer, i));\n      }\n      return r;\n    }\n    function M(t, e, n) {\n      var i = [];\n      i.size = t.size, void 0 !== t.start && (i.start = t.start, i.end = t.end);\n      for (var r = n ? 4 : 3, o = 0; o < t.length; o += r) i.push(t[o] + e, t[o + 1], t[o + 2]), n && i.push(t[o + 3]);\n      return i;\n    }\n    function P(t, e, n) {\n      if (t.transformed) return t;\n      for (var i = 1 << t.z, r = t.x, o = t.y, l = n ? 3 : 2, a = 0, s = t.features; a < s.length; a += 1) {\n        var u = s[a],\n        h = u.geometry,\n        f = u.type;\n        if (u.geometry = [], 1 === f) for (var g = 0; g < h.length; g += l) u.geometry.push(S(h[g], h[g + 1], e, i, r, o)), n && u.geometry[u.geometry.length - 1].push(h[g + 2]);else for (var m = 0; m < h.length; m++) {\n          for (var p = [], d = 0; d < h[m].length; d += l) p.push(S(h[m][d], h[m][d + 1], e, i, r, o)), n && p[p.length - 1].push(h[m][d + 2]);\n          u.geometry.push(p);\n        }\n      }\n      return t.transformed = !0, t;\n    }\n    function S(t, e, n, i, r, o) {\n      return [Math.round(n * (t * i - r)), Math.round(n * (e * i - o))];\n    }\n    function Y(t, e, n, i, r) {\n      for (var o = e === r.maxZoom ? 0 : r.tolerance / ((1 << e) * r.extent), l = {\n        features: [],\n        numPoints: 0,\n        numSimplified: 0,\n        numFeatures: t.length,\n        source: null,\n        x: n,\n        y: i,\n        z: e,\n        transformed: !1,\n        minX: 2,\n        minY: 1,\n        maxX: -1,\n        maxY: 0 },\n      a = 0, s = t; a < s.length; a += 1) {\n        A(l, s[a], o, r);\n      }\n      return l;\n    }\n    function A(t, e, n, i) {\n      var r = e.geometry,\n      o = e.type,\n      l = [],\n      a = i.hasAltitude ? 4 : 3;\n      if (t.minX = Math.min(t.minX, e.minX), t.minY = Math.min(t.minY, e.minY), t.maxX = Math.max(t.maxX, e.maxX), t.maxY = Math.max(t.maxY, e.maxY), \"Point\" === o || \"MultiPoint\" === o) for (var s = 0; s < r.length; s += a) l.push(r[s], r[s + 1]), i.hasAltitude && l.push(r[s + 3]), t.numPoints++, t.numSimplified++;else if (\"LineString\" === o) L(l, r, t, n, !1, !1, i);else if (\"MultiLineString\" === o || \"Polygon\" === o) for (var u = 0; u < r.length; u++) L(l, r[u], t, n, \"Polygon\" === o, 0 === u, i);else if (\"MultiPolygon\" === o) for (var h = 0; h < r.length; h++) for (var f = r[h], g = 0; g < f.length; g++) L(l, f[g], t, n, !0, 0 === g, i);\n      if (l.length) {\n        var m = e.tags || null;\n        if (\"LineString\" === o && i.lineMetrics) {\n          for (var p in m = {}, e.tags) m[p] = e.tags[p];\n          m.mapbox_clip_start = r.start / r.size, m.mapbox_clip_end = r.end / r.size;\n        }\n        var d = {\n          geometry: l,\n          type: \"Polygon\" === o || \"MultiPolygon\" === o ? 3 : \"LineString\" === o || \"MultiLineString\" === o ? 2 : 1,\n          tags: m };\n\n        e.layer && (d.layer = e.layer), null !== e.id && (d.id = e.id), t.features.push(d);\n      }\n    }\n    function X(t, e, n) {\n      return 0 === t[e + 2] && t[e + 3] > 0 && n;\n    }\n    function L(t, e, n, i, r, o, l) {\n      var a = i * i,\n      s = l.hasAltitude,\n      u = s ? 4 : 3;\n      if (!l.disableFilter && i > 0 && e.size < (r ? a : i)) n.numPoints += e.length / u;else {\n        for (var h = [], f = 0; f < e.length; f += u) (0 === i || e[f + 2] > a || X(e, f, s)) && (n.numSimplified++, h.push(e[f], e[f + 1]), s && h.push(e[f + 3])), n.numPoints++;\n        r && function (t, e, n) {\n          for (var i = n ? 3 : 2, r = 0, o = 0, l = t.length, a = l - i; o < l; a = o, o += i) r += (t[o] - t[a]) * (t[o + 1] + t[a + 1]);\n          if (r > 0 === e) for (var s = i, u = i - 1, h = i - 2, f = 0, g = t.length; f < g / 2; f += i) {\n            var m = t[f],\n            p = t[f + 1],\n            d = void 0;\n            n && (d = t[f + 2]), t[f] = t[g - s - f], t[f + 1] = t[g - u - f], n && (t[f + 2] = t[g - h - f]), t[g - s - f] = m, t[g - u - f] = p, n && (t[g - h - f] = d);\n          }\n        }(h, o, s), t.push(h);\n      }\n    }\n    var b = {\n      maxZoom: 14,\n      indexMaxZoom: 5,\n      indexMaxPoints: 1e5,\n      tolerance: 3,\n      extent: 4096,\n      buffer: 64,\n      lineMetrics: !1,\n      promoteId: null,\n      generateId: !1,\n      hasAltitude: !1,\n      disableFilter: !1,\n      debug: 0 },\n\n    w = function w(t, e) {\n      var n = (e = this.options = function (t, e) {\n        for (var n in e) t[n] = e[n];\n        return t;\n      }(Object.create(b), e)).debug;\n      if (n && console.time(\"preprocess data\"), e.maxZoom < 0 || e.maxZoom > 24) throw new Error(\"maxZoom should be in the 0-24 range\");\n      if (e.promoteId && e.generateId) throw new Error(\"promoteId and generateId cannot be used together.\");\n      var o = function (t, e) {\n        var n = [];\n        if (Array.isArray(t)) {\n          for (var o = 0; o < t.length; o++) i(n, t[o].layer, t[o].data, e);\n          return n;\n        }\n        if (\"FeatureCollection\" === t.type) for (var l = 0; l < t.features.length; l++) r(n, t.features[l], e, l);else \"Feature\" === t.type ? r(n, t, e) : r(n, {\n          geometry: t },\n        e);\n        return n;\n      }(t, e);\n      this.tiles = {}, this.tileCoords = [], n && (console.timeEnd(\"preprocess data\"), console.log(\"index: maxZoom: %d, maxPoints: %d\", e.indexMaxZoom, e.indexMaxPoints), console.time(\"generate tiles\"), this.stats = {}, this.total = 0), (o = function (t, e) {\n        var n = e.buffer / e.extent,\n        i = t,\n        r = h(t, 1, -1 - n, n, 0, -1, 2, e),\n        o = h(t, 1, 1 - n, 2 + n, 0, -1, 2, e);\n        return (r || o) && (i = h(t, 1, -n, 1 + n, 0, -1, 2, e) || [], r && (i = x(r, 1, e.hasAltitude).concat(i)), o && (i = i.concat(x(o, -1, e.hasAltitude)))), i;\n      }(o, e)).length && this.splitTile(o, 0, 0, 0), n && (o.length && console.log(\"features: %d, points: %d\", this.tiles[0].numFeatures, this.tiles[0].numPoints), console.timeEnd(\"generate tiles\"), console.log(\"tiles generated:\", this.total, JSON.stringify(this.stats)));\n    };\n    function z(t, e, n) {\n      return 32 * ((1 << t) * n + e) + t;\n    }\n    return w.prototype.splitTile = function (t, e, n, i, r, o, l) {\n      for (var a = [t, e, n, i], s = this.options, u = s.debug; a.length;) {\n        i = a.pop(), n = a.pop(), e = a.pop(), t = a.pop();\n        var f = 1 << e,\n        g = z(e, n, i),\n        m = this.tiles[g];\n        if (!m && (u > 1 && console.time(\"creation\"), m = this.tiles[g] = Y(t, e, n, i, s), this.tileCoords.push({\n          z: e,\n          x: n,\n          y: i }),\n        u)) {\n          u > 1 && (console.log(\"tile z%d-%d-%d (features: %d, points: %d, simplified: %d)\", e, n, i, m.numFeatures, m.numPoints, m.numSimplified), console.timeEnd(\"creation\"));\n          var p = \"z\" + e;\n          this.stats[p] = (this.stats[p] || 0) + 1, this.total++;\n        }\n        if (m.source = t, null == r) {\n          if (e === s.indexMaxZoom || m.numPoints <= s.indexMaxPoints) continue;\n        } else {\n          if (e === s.maxZoom || e === r) continue;\n          if (null != r) {\n            var d = r - e;\n            if (n !== o >> d || i !== l >> d) continue;\n          }\n        }\n        if (m.source = null, 0 !== t.length) {\n          u > 1 && console.time(\"clipping\");\n          var c = .5 * s.buffer / s.extent,\n          v = .5 - c,\n          y = .5 + c,\n          x = 1 + c,\n          M = null,\n          P = null,\n          S = null,\n          A = null,\n          X = h(t, f, n - c, n + y, 0, m.minX, m.maxX, s),\n          L = h(t, f, n + v, n + x, 0, m.minX, m.maxX, s);\n          t = null, X && (M = h(X, f, i - c, i + y, 1, m.minY, m.maxY, s), P = h(X, f, i + v, i + x, 1, m.minY, m.maxY, s), X = null), L && (S = h(L, f, i - c, i + y, 1, m.minY, m.maxY, s), A = h(L, f, i + v, i + x, 1, m.minY, m.maxY, s), L = null), u > 1 && console.timeEnd(\"clipping\"), a.push(M || [], e + 1, 2 * n, 2 * i), a.push(P || [], e + 1, 2 * n, 2 * i + 1), a.push(S || [], e + 1, 2 * n + 1, 2 * i), a.push(A || [], e + 1, 2 * n + 1, 2 * i + 1);\n        }\n      }\n    }, w.prototype.getTile = function (t, e, n) {\n      t = +t, e = +e, n = +n;\n      var i = this.options,\n      r = i.extent,\n      o = i.debug,\n      l = i.hasAltitude,\n      a = i.wrapX;\n      if (t < 0 || t > 24) return null;\n      if (a) {\n        var s = 1 << t;\n        e = e + s & s - 1;\n      }\n      var u = z(t, e, n);\n      if (this.tiles[u]) return P(this.tiles[u], r, l);\n      o > 1 && console.log(\"drilling down to z%d-%d-%d\", t, e, n);\n      for (var h, f = t, g = e, m = n; !h && f > 0;) f--, g >>= 1, m >>= 1, h = this.tiles[z(f, g, m)];\n      return h && h.source ? (o > 1 && (console.log(\"found parent tile z%d-%d-%d\", f, g, m), console.time(\"drilling down\")), this.splitTile(h.source, f, g, m, t, e, n), o > 1 && console.timeEnd(\"drilling down\"), this.tiles[u] ? P(this.tiles[u], r, l) : null) : null;\n    }, function (t, e) {\n      return new w(t, e);\n    };\n  });return module.exports;});",
    "requires": [],
    "buildLevel": 0,
    "fileName": "/geojson-vt.js"
  },
  "pandav:/src/index.js": {
    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src\", [\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/convert\", \"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/clip\", \"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/wrap\", \"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/transform\", \"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/tile\"], function (module, exports, require, load, process, global) {\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true });\n\n  exports.default = geojsonvt;\n  var _convert = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/convert'));\n  var _clip = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/clip'));\n  var _wrap = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/wrap'));\n  var _transform = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/transform'));\n  var _tile = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/tile'));\n  function _interopRequireDefault(e) {return e && e.__esModule ? e : { default: e };}\n  function _typeof(o) {\"@babel/helpers - typeof\";return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (o) {return typeof o;} : function (o) {return o && \"function\" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? \"symbol\" : typeof o;}, _typeof(o);}\n  function _classCallCheck(a, n) {if (!(a instanceof n)) throw new TypeError(\"Cannot call a class as a function\");}\n  function _defineProperties(e, r) {for (var t = 0; t < r.length; t++) {var o = r[t];o.enumerable = o.enumerable || !1, o.configurable = !0, \"value\" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o);}}\n  function _createClass(e, r, t) {return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, \"prototype\", { writable: !1 }), e;}\n  function _toPropertyKey(t) {var i = _toPrimitive(t, \"string\");return \"symbol\" == _typeof(i) ? i : i + \"\";}\n  function _toPrimitive(t, r) {if (\"object\" != _typeof(t) || !t) return t;var e = t[Symbol.toPrimitive];if (void 0 !== e) {var i = e.call(t, r || \"default\");if (\"object\" != _typeof(i)) return i;throw new TypeError(\"@@toPrimitive must return a primitive value.\");}return (\"string\" === r ? String : Number)(t);}\n  var defaultOptions = {\n    maxZoom: 14,\n    indexMaxZoom: 5,\n    indexMaxPoints: 100000,\n    tolerance: 3,\n    extent: 4096,\n    buffer: 64,\n    lineMetrics: false,\n    promoteId: null,\n    generateId: false,\n    hasAltitude: false,\n    disableFilter: false,\n    debug: 0 };\n\n  var GeoJSONVT = function () {\n    function GeoJSONVT(data, options) {\n      _classCallCheck(this, GeoJSONVT);\n      options = this.options = extend(Object.create(defaultOptions), options);\n      var debug = options.debug;\n      if (debug) console.time('preprocess data');\n      if (options.maxZoom < 0 || options.maxZoom > 24) throw new Error('maxZoom should be in the 0-24 range');\n      if (options.promoteId && options.generateId) throw new Error('promoteId and generateId cannot be used together.');\n      var features = (0, _convert.default)(data, options);\n      this.tiles = {};\n      this.tileCoords = [];\n      if (debug) {\n        console.timeEnd('preprocess data');\n        console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints);\n        console.time('generate tiles');\n        this.stats = {};\n        this.total = 0;\n      }\n      features = (0, _wrap.default)(features, options);\n      if (features.length) this.splitTile(features, 0, 0, 0);\n      if (debug) {\n        if (features.length) console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints);\n        console.timeEnd('generate tiles');\n        console.log('tiles generated:', this.total, JSON.stringify(this.stats));\n      }\n    }\n    return _createClass(GeoJSONVT, [{\n      key: \"splitTile\",\n      value: function splitTile(features, z, x, y, cz, cx, cy) {\n        var stack = [features, z, x, y];\n        var options = this.options;\n        var debug = options.debug;\n        while (stack.length) {\n          y = stack.pop();\n          x = stack.pop();\n          z = stack.pop();\n          features = stack.pop();\n          var z2 = 1 << z;\n          var id = toID(z, x, y);\n          var tile = this.tiles[id];\n          if (!tile) {\n            if (debug > 1) console.time('creation');\n            tile = this.tiles[id] = (0, _tile.default)(features, z, x, y, options);\n            this.tileCoords.push({\n              z: z,\n              x: x,\n              y: y });\n\n            if (debug) {\n              if (debug > 1) {\n                console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)', z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified);\n                console.timeEnd('creation');\n              }\n              var key = \"z\".concat(z);\n              this.stats[key] = (this.stats[key] || 0) + 1;\n              this.total++;\n            }\n          }\n          tile.source = features;\n          if (cz == null) {\n            if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) continue;\n          } else if (z === options.maxZoom || z === cz) {\n            continue;\n          } else if (cz != null) {\n            var zoomSteps = cz - z;\n            if (x !== cx >> zoomSteps || y !== cy >> zoomSteps) continue;\n          }\n          tile.source = null;\n          if (features.length === 0) continue;\n          if (debug > 1) console.time('clipping');\n          var k1 = 0.5 * options.buffer / options.extent;\n          var k2 = 0.5 - k1;\n          var k3 = 0.5 + k1;\n          var k4 = 1 + k1;\n          var tl = null;\n          var bl = null;\n          var tr = null;\n          var br = null;\n          var left = (0, _clip.default)(features, z2, x - k1, x + k3, 0, tile.minX, tile.maxX, options);\n          var right = (0, _clip.default)(features, z2, x + k2, x + k4, 0, tile.minX, tile.maxX, options);\n          features = null;\n          if (left) {\n            tl = (0, _clip.default)(left, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options);\n            bl = (0, _clip.default)(left, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options);\n            left = null;\n          }\n          if (right) {\n            tr = (0, _clip.default)(right, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options);\n            br = (0, _clip.default)(right, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options);\n            right = null;\n          }\n          if (debug > 1) console.timeEnd('clipping');\n          stack.push(tl || [], z + 1, x * 2, y * 2);\n          stack.push(bl || [], z + 1, x * 2, y * 2 + 1);\n          stack.push(tr || [], z + 1, x * 2 + 1, y * 2);\n          stack.push(br || [], z + 1, x * 2 + 1, y * 2 + 1);\n        }\n      } },\n    {\n      key: \"getTile\",\n      value: function getTile(z, x, y) {\n        z = +z;\n        x = +x;\n        y = +y;\n        var options = this.options;\n        var extent = options.extent,\n        debug = options.debug;\n        var hasAltitude = options.hasAltitude,\n        wrapX = options.wrapX;\n        if (z < 0 || z > 24) return null;\n        if (wrapX) {\n          var z2 = 1 << z;\n          x = x + z2 & z2 - 1;\n        }\n        var id = toID(z, x, y);\n        if (this.tiles[id]) return (0, _transform.default)(this.tiles[id], extent, hasAltitude);\n        if (debug > 1) console.log('drilling down to z%d-%d-%d', z, x, y);\n        var z0 = z;\n        var x0 = x;\n        var y0 = y;\n        var parent;\n        while (!parent && z0 > 0) {\n          z0--;\n          x0 = x0 >> 1;\n          y0 = y0 >> 1;\n          parent = this.tiles[toID(z0, x0, y0)];\n        }\n        if (!parent || !parent.source) return null;\n        if (debug > 1) {\n          console.log('found parent tile z%d-%d-%d', z0, x0, y0);\n          console.time('drilling down');\n        }\n        this.splitTile(parent.source, z0, x0, y0, z, x, y);\n        if (debug > 1) console.timeEnd('drilling down');\n        return this.tiles[id] ? (0, _transform.default)(this.tiles[id], extent, hasAltitude) : null;\n      } }]);\n\n  }();\n  function toID(z, x, y) {\n    return ((1 << z) * y + x) * 32 + z;\n  }\n  function extend(dest, src) {\n    for (var i in src) dest[i] = src[i];\n    return dest;\n  }\n  function geojsonvt(data, options) {\n    return new GeoJSONVT(data, options);\n  }return module.exports;});",
    "requires": [
      "pandav:/src/convert.js",
      "pandav:/src/clip.js",
      "pandav:/src/wrap.js",
      "pandav:/src/transform.js",
      "pandav:/src/tile.js"
    ],
    "buildLevel": 0,
    "fileName": "/src/index.js"
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    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/tile\", [], function (module, exports, require, load, process, global) {\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true });\n\n  exports.default = createTile;\n  function _createForOfIteratorHelper(r, e) {var t = \"undefined\" != typeof Symbol && r[Symbol.iterator] || r[\"@@iterator\"];if (!t) {if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && \"number\" == typeof r.length) {t && (r = t);var _n = 0,F = function F() {};return { s: F, n: function n() {return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] };}, e: function e(r) {throw r;}, f: F };}throw new TypeError(\"Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");}var o,a = !0,u = !1;return { s: function s() {t = t.call(r);}, n: function n() {var r = t.next();return a = r.done, r;}, e: function e(r) {u = !0, o = r;}, f: function f() {try {a || null == t.return || t.return();} finally {if (u) throw o;}} };}\n  function _unsupportedIterableToArray(r, a) {if (r) {if (\"string\" == typeof r) return _arrayLikeToArray(r, a);var t = {}.toString.call(r).slice(8, -1);return \"Object\" === t && r.constructor && (t = r.constructor.name), \"Map\" === t || \"Set\" === t ? Array.from(r) : \"Arguments\" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;}}\n  function _arrayLikeToArray(r, a) {(null == a || a > r.length) && (a = r.length);for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];return n;}\n  function createTile(features, z, tx, ty, options) {\n    var tolerance = z === options.maxZoom ? 0 : options.tolerance / ((1 << z) * options.extent);\n    var tile = {\n      features: [],\n      numPoints: 0,\n      numSimplified: 0,\n      numFeatures: features.length,\n      source: null,\n      x: tx,\n      y: ty,\n      z: z,\n      transformed: false,\n      minX: 2,\n      minY: 1,\n      maxX: -1,\n      maxY: 0 };\n\n    var _iterator = _createForOfIteratorHelper(features),\n    _step;\n    try {\n      for (_iterator.s(); !(_step = _iterator.n()).done;) {\n        var feature = _step.value;\n        addFeature(tile, feature, tolerance, options);\n      }\n    } catch (err) {\n      _iterator.e(err);\n    } finally {\n      _iterator.f();\n    }\n    return tile;\n  }\n  function addFeature(tile, feature, tolerance, options) {\n    var geom = feature.geometry;\n    var type = feature.type;\n    var simplified = [];\n    var stride = options.hasAltitude ? 4 : 3;\n    tile.minX = Math.min(tile.minX, feature.minX);\n    tile.minY = Math.min(tile.minY, feature.minY);\n    tile.maxX = Math.max(tile.maxX, feature.maxX);\n    tile.maxY = Math.max(tile.maxY, feature.maxY);\n    if (type === 'Point' || type === 'MultiPoint') {\n      for (var i = 0; i < geom.length; i += stride) {\n        simplified.push(geom[i], geom[i + 1]);\n        if (options.hasAltitude) {\n          simplified.push(geom[i + 3]);\n        }\n        tile.numPoints++;\n        tile.numSimplified++;\n      }\n    } else if (type === 'LineString') {\n      addLine(simplified, geom, tile, tolerance, false, false, options);\n    } else if (type === 'MultiLineString' || type === 'Polygon') {\n      for (var _i = 0; _i < geom.length; _i++) {\n        addLine(simplified, geom[_i], tile, tolerance, type === 'Polygon', _i === 0, options);\n      }\n    } else if (type === 'MultiPolygon') {\n      for (var k = 0; k < geom.length; k++) {\n        var polygon = geom[k];\n        for (var _i2 = 0; _i2 < polygon.length; _i2++) {\n          addLine(simplified, polygon[_i2], tile, tolerance, true, _i2 === 0, options);\n        }\n      }\n    }\n    if (simplified.length) {\n      var tags = feature.tags || null;\n      if (type === 'LineString' && options.lineMetrics) {\n        tags = {};\n        for (var key in feature.tags) tags[key] = feature.tags[key];\n        tags['mapbox_clip_start'] = geom.start / geom.size;\n        tags['mapbox_clip_end'] = geom.end / geom.size;\n      }\n      var tileFeature = {\n        geometry: simplified,\n        type: type === 'Polygon' || type === 'MultiPolygon' ? 3 : type === 'LineString' || type === 'MultiLineString' ? 2 : 1,\n        tags: tags };\n\n      if (feature.layer) {\n        tileFeature.layer = feature.layer;\n      }\n      if (feature.id !== null) {\n        tileFeature.id = feature.id;\n      }\n      tile.features.push(tileFeature);\n    }\n  }\n  function keepSimplified(geom, i, hasAltitude) {\n    return geom[i + 2] === 0 && geom[i + 3] > 0 && hasAltitude;\n  }\n  function addLine(result, geom, tile, tolerance, isPolygon, isOuter, options) {\n    var sqTolerance = tolerance * tolerance;\n    var hasAltitude = options.hasAltitude,\n    disableFilter = options.disableFilter;\n    var stride = hasAltitude ? 4 : 3;\n    if (!disableFilter && tolerance > 0 && geom.size < (isPolygon ? sqTolerance : tolerance)) {\n      tile.numPoints += geom.length / stride;\n      return;\n    }\n    var ring = [];\n    for (var i = 0; i < geom.length; i += stride) {\n      if (tolerance === 0 || geom[i + 2] > sqTolerance || keepSimplified(geom, i, hasAltitude)) {\n        tile.numSimplified++;\n        ring.push(geom[i], geom[i + 1]);\n        if (hasAltitude) {\n          ring.push(geom[i + 3]);\n        }\n      }\n      tile.numPoints++;\n    }\n    if (isPolygon) rewind(ring, isOuter, hasAltitude);\n    result.push(ring);\n  }\n  function rewind(ring, clockwise, hasAltitude) {\n    var stride = hasAltitude ? 3 : 2;\n    var area = 0;\n    for (var i = 0, len = ring.length, j = len - stride; i < len; j = i, i += stride) {\n      area += (ring[i] - ring[j]) * (ring[i + 1] + ring[j + 1]);\n    }\n    if (area > 0 === clockwise) {\n      var posX = stride;\n      var posY = stride - 1;\n      var posA = stride - 2;\n      for (var _i3 = 0, _len = ring.length; _i3 < _len / 2; _i3 += stride) {\n        var x = ring[_i3];\n        var y = ring[_i3 + 1];\n        var altitude = void 0;\n        if (hasAltitude) {\n          altitude = ring[_i3 + 2];\n        }\n        ring[_i3] = ring[_len - posX - _i3];\n        ring[_i3 + 1] = ring[_len - posY - _i3];\n        if (hasAltitude) {\n          ring[_i3 + 2] = ring[_len - posA - _i3];\n        }\n        ring[_len - posX - _i3] = x;\n        ring[_len - posY - _i3] = y;\n        if (hasAltitude) {\n          ring[_len - posA - _i3] = altitude;\n        }\n      }\n    }\n  }return module.exports;});",
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    "buildLevel": 0,
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Array.from(r) : \"Arguments\" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;}}\n  function _arrayLikeToArray(r, a) {(null == a || a > r.length) && (a = r.length);for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];return n;}\n  function convert(data, options) {\n    var features = [];\n    if (Array.isArray(data)) {\n      for (var i = 0; i < data.length; i++) {\n        convertLayerData(features, data[i].layer, data[i].data, options);\n      }\n      return features;\n    }\n    if (data.type === 'FeatureCollection') {\n      for (var _i = 0; _i < data.features.length; _i++) {\n        convertFeature(features, data.features[_i], options, _i);\n      }\n    } else if (data.type === 'Feature') {\n      convertFeature(features, data, options);\n    } else {\n      convertFeature(features, {\n        geometry: data },\n      options);\n    }\n    return features;\n  }\n  function convertLayerData(features, layer, data, options) {\n    options.layer = layer;\n    if (data.type === 'FeatureCollection') {\n      for (var i = 0; i < data.features.length; i++) {\n        convertFeature(features, data.features[i], options, i);\n      }\n    } else if (data.type === 'Feature') {\n      convertFeature(features, data, options);\n    } else {\n      convertFeature(features, {\n        geometry: data },\n      options);\n    }\n  }\n  function convertFeature(features, geojson, options, index) {\n    if (!geojson.geometry) return;\n    var coords = geojson.geometry.coordinates;\n    var type = geojson.geometry.type;\n    var tolerance = Math.pow(options.tolerance / ((1 << options.maxZoom) * options.extent), 2);\n    var geometry = [];\n    var id = geojson.id;\n    if (options.promoteId) {\n      id = geojson.properties[options.promoteId];\n    } else if (options.generateId) {\n      id = index || 0;\n    }\n    if (type === 'Point') {\n      convertPoint(coords, geometry, options);\n    } else if (type === 'MultiPoint') {\n      var _iterator = _createForOfIteratorHelper(coords),\n      _step;\n      try {\n        for (_iterator.s(); !(_step = _iterator.n()).done;) {\n          var p = _step.value;\n          convertPoint(p, geometry, options);\n        }\n      } catch (err) {\n        _iterator.e(err);\n      } finally {\n        _iterator.f();\n      }\n    } else if (type === 'LineString') {\n      convertLine(coords, geometry, tolerance, false, options);\n    } else if (type === 'MultiLineString') {\n      if (options.lineMetrics) {\n        var _iterator2 = _createForOfIteratorHelper(coords),\n        _step2;\n        try {\n          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {\n            var line = _step2.value;\n            geometry = [];\n            convertLine(line, geometry, tolerance, false, options);\n            features.push((0, _feature.default)(id, 'LineString', geometry, geojson.properties, options.layer, options.hasAltitude));\n          }\n        } catch (err) {\n          _iterator2.e(err);\n        } finally {\n          _iterator2.f();\n        }\n        return;\n      } else {\n        convertLines(coords, geometry, tolerance, false, options);\n      }\n    } else if (type === 'Polygon') {\n      convertLines(coords, geometry, tolerance, true, options);\n    } else if (type === 'MultiPolygon') {\n      var _iterator3 = _createForOfIteratorHelper(coords),\n      _step3;\n      try {\n        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {\n          var polygon = _step3.value;\n          var newPolygon = [];\n          convertLines(polygon, newPolygon, tolerance, true, options);\n          geometry.push(newPolygon);\n        }\n      } catch (err) {\n        _iterator3.e(err);\n      } finally {\n        _iterator3.f();\n      }\n    } else if (type === 'GeometryCollection') {\n      var _iterator4 = _createForOfIteratorHelper(geojson.geometry.geometries),\n      _step4;\n      try {\n        for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {\n          var singleGeometry = _step4.value;\n          convertFeature(features, {\n            id: id,\n            geometry: singleGeometry,\n            properties: geojson.properties },\n          options, index);\n        }\n      } catch (err) {\n        _iterator4.e(err);\n      } finally {\n        _iterator4.f();\n      }\n      return;\n    } else {\n      throw new Error('Input data is not a valid GeoJSON object.');\n    }\n    features.push((0, _feature.default)(id, type, geometry, geojson.properties, options.layer, options.hasAltitude));\n  }\n  function convertPoint(coords, out, options) {\n    out.push(projectX(coords[0]), projectY(coords[1], options.projection), 0);\n    if (options.hasAltitude) {\n      if (coords.length > 2) {\n        out.push(coords[2]);\n      } else {\n        out.push(0);\n      }\n    }\n  }\n  function convertLine(ring, out, tolerance, isPolygon, options) {\n    var x0, y0;\n    var size = 0;\n    for (var j = 0; j < ring.length; j++) {\n      var x = projectX(ring[j][0]);\n      var y = projectY(ring[j][1], options.projection);\n      out.push(x, y, 0);\n      if (options.hasAltitude) {\n        if (ring[j].length > 2) {\n          out.push(ring[j][2]);\n        } else {\n          out.push(0);\n        }\n      }\n      if (j > 0) {\n        if (isPolygon) {\n          size += (x0 * y - x * y0) / 2;\n        } else {\n          size += Math.sqrt(Math.pow(x - x0, 2) + Math.pow(y - y0, 2));\n        }\n      }\n      x0 = x;\n      y0 = y;\n    }\n    var stride = options.hasAltitude ? 4 : 3;\n    var last = out.length - stride;\n    out[2] = 1;\n    (0, _simplify.default)(out, 0, last, tolerance, stride);\n    out[last + 2] = 1;\n    out.size = Math.abs(size);\n    out.start = 0;\n    out.end = out.size;\n  }\n  function convertLines(rings, out, tolerance, isPolygon, options) {\n    for (var i = 0; i < rings.length; i++) {\n      var geom = [];\n      convertLine(rings[i], geom, tolerance, isPolygon, options);\n      out.push(geom);\n    }\n  }\n  function projectX(x) {\n    return x / 360 + 0.5;\n  }\n  function projectY(y, proj) {\n    switch (proj) {\n      case 'EPSG:4326':\n        return (90 - y) / 360.0;}\n\n    var sin = Math.sin(y * Math.PI / 180);\n    var y2 = 0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI;\n    return y2 < 0 ? 0 : y2 > 1 ? 1 : y2;\n  }return module.exports;});",
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      "pandav:/src/feature.js"
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    "fileName": "/src/convert.js"
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  "pandav:/src/wrap.js": {
    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/wrap\", [\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/clip\", \"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/feature\"], function (module, exports, require, load, process, global) {\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true });\n\n  exports.default = wrap;\n  var _clip = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/clip'));\n  var _feature = _interopRequireDefault(require('pandav:/npm/@maptalks/geojson-vt/3.5.0/src/feature'));\n  function _interopRequireDefault(e) {return e && e.__esModule ? e : { default: e };}\n  function _createForOfIteratorHelper(r, e) {var t = \"undefined\" != typeof Symbol && r[Symbol.iterator] || r[\"@@iterator\"];if (!t) {if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && \"number\" == typeof r.length) {t && (r = t);var _n = 0,F = function F() {};return { s: F, n: function n() {return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] };}, e: function e(r) {throw r;}, f: F };}throw new TypeError(\"Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");}var o,a = !0,u = !1;return { s: function s() {t = t.call(r);}, n: function n() {var r = t.next();return a = r.done, r;}, e: function e(r) {u = !0, o = r;}, f: function f() {try {a || null == t.return || t.return();} finally {if (u) throw o;}} };}\n  function _unsupportedIterableToArray(r, a) {if (r) {if (\"string\" == typeof r) return _arrayLikeToArray(r, a);var t = {}.toString.call(r).slice(8, -1);return \"Object\" === t && r.constructor && (t = r.constructor.name), \"Map\" === t || \"Set\" === t ? Array.from(r) : \"Arguments\" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;}}\n  function _arrayLikeToArray(r, a) {(null == a || a > r.length) && (a = r.length);for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];return n;}\n  function wrap(features, options) {\n    var buffer = options.buffer / options.extent;\n    var merged = features;\n    var left = (0, _clip.default)(features, 1, -1 - buffer, buffer, 0, -1, 2, options);\n    var right = (0, _clip.default)(features, 1, 1 - buffer, 2 + buffer, 0, -1, 2, options);\n    if (left || right) {\n      merged = (0, _clip.default)(features, 1, -buffer, 1 + buffer, 0, -1, 2, options) || [];\n      if (left) merged = shiftFeatureCoords(left, 1, options.hasAltitude).concat(merged);\n      if (right) merged = merged.concat(shiftFeatureCoords(right, -1, options.hasAltitude));\n    }\n    return merged;\n  }\n  function shiftFeatureCoords(features, offset, hasAltitude) {\n    var newFeatures = [];\n    for (var i = 0; i < features.length; i++) {\n      var feature = features[i];\n      var type = feature.type;\n      var newGeometry = void 0;\n      if (type === 'Point' || type === 'MultiPoint' || type === 'LineString') {\n        newGeometry = shiftCoords(feature.geometry, offset, hasAltitude);\n      } else if (type === 'MultiLineString' || type === 'Polygon') {\n        newGeometry = [];\n        var _iterator = _createForOfIteratorHelper(feature.geometry),\n        _step;\n        try {\n          for (_iterator.s(); !(_step = _iterator.n()).done;) {\n            var line = _step.value;\n            newGeometry.push(shiftCoords(line, offset, hasAltitude));\n          }\n        } catch (err) {\n          _iterator.e(err);\n        } finally {\n          _iterator.f();\n        }\n      } else if (type === 'MultiPolygon') {\n        newGeometry = [];\n        var _iterator2 = _createForOfIteratorHelper(feature.geometry),\n        _step2;\n        try {\n          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {\n            var polygon = _step2.value;\n            var newPolygon = [];\n            var _iterator3 = _createForOfIteratorHelper(polygon),\n            _step3;\n            try {\n              for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {\n                var _line = _step3.value;\n                newPolygon.push(shiftCoords(_line, offset, hasAltitude));\n              }\n            } catch (err) {\n              _iterator3.e(err);\n            } finally {\n              _iterator3.f();\n            }\n            newGeometry.push(newPolygon);\n          }\n        } catch (err) {\n          _iterator2.e(err);\n        } finally {\n          _iterator2.f();\n        }\n      }\n      newFeatures.push((0, _feature.default)(feature.id, type, newGeometry, feature.tags, feature.layer, hasAltitude));\n    }\n    return newFeatures;\n  }\n  function shiftCoords(points, offset, hasAltitude) {\n    var newPoints = [];\n    newPoints.size = points.size;\n    if (points.start !== undefined) {\n      newPoints.start = points.start;\n      newPoints.end = points.end;\n    }\n    var stride = hasAltitude ? 4 : 3;\n    for (var i = 0; i < points.length; i += stride) {\n      newPoints.push(points[i] + offset, points[i + 1], points[i + 2]);\n      if (hasAltitude) {\n        newPoints.push(points[i + 3]);\n      }\n    }\n    return newPoints;\n  }return module.exports;});",
    "requires": [
      "pandav:/src/clip.js",
      "pandav:/src/feature.js"
    ],
    "buildLevel": 0,
    "fileName": "/src/wrap.js"
  },
  "pandav:/src/transform.js": {
    "cubeCode": "Cube(\"pandav:/npm/@maptalks/geojson-vt/3.5.0/src/transform\", [], function (module, exports, require, load, process, global) {\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true });\n\n  exports.default = transformTile;\n  function _createForOfIteratorHelper(r, e) {var t = \"undefined\" != typeof Symbol && r[Symbol.iterator] || r[\"@@iterator\"];if (!t) {if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && \"number\" == typeof r.length) {t && (r = t);var _n = 0,F = function F() {};return { s: F, n: function n() {return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] };}, e: function e(r) {throw r;}, f: F };}throw new TypeError(\"Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");}var o,a = !0,u = !1;return { s: function s() {t = t.call(r);}, n: function n() {var r = t.next();return a = r.done, r;}, e: function e(r) {u = !0, o = r;}, f: function f() {try {a || null == t.return || t.return();} finally {if (u) throw o;}} };}\n  function _unsupportedIterableToArray(r, a) {if (r) {if (\"string\" == typeof r) return _arrayLikeToArray(r, a);var t = {}.toString.call(r).slice(8, -1);return \"Object\" === t && r.constructor && (t = r.constructor.name), \"Map\" === t || \"Set\" === t ? Array.from(r) : \"Arguments\" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;}}\n  function _arrayLikeToArray(r, a) {(null == a || a > r.length) && (a = r.length);for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];return n;}\n  function transformTile(tile, extent, hasAltitude) {\n    if (tile.transformed) return tile;\n    var z2 = 1 << tile.z;\n    var tx = tile.x;\n    var ty = tile.y;\n    var stride = hasAltitude ? 3 : 2;\n    var _iterator = _createForOfIteratorHelper(tile.features),\n    _step;\n    try {\n      for (_iterator.s(); !(_step = _iterator.n()).done;) {\n        var feature = _step.value;\n        var geom = feature.geometry;\n        var type = feature.type;\n        feature.geometry = [];\n        if (type === 1) {\n          for (var j = 0; j < geom.length; j += stride) {\n            feature.geometry.push(transformPoint(geom[j], geom[j + 1], extent, z2, tx, ty));\n            if (hasAltitude) {\n              feature.geometry[feature.geometry.length - 1].push(geom[j + 2]);\n            }\n          }\n        } else {\n          for (var _j = 0; _j < geom.length; _j++) {\n            var ring = [];\n            for (var k = 0; k < geom[_j].length; k += stride) {\n              ring.push(transformPoint(geom[_j][k], geom[_j][k + 1], extent, z2, tx, ty));\n              if (hasAltitude) {\n                ring[ring.length - 1].push(geom[_j][k + 2]);\n              }\n            }\n            feature.geometry.push(ring);\n          }\n        }\n      }\n    } catch (err) {\n      _iterator.e(err);\n    } finally {\n      _iterator.f();\n    }\n    tile.transformed = true;\n    return tile;\n  }\n  function transformPoint(x, y, extent, z2, tx, ty) {\n    return [Math.round(extent * (x * z2 - tx)), Math.round(extent * (y * z2 - ty))];\n  }return module.exports;});",
    "requires": [],
    "buildLevel": 0,
    "fileName": "/src/transform.js"
  }
}