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kepler.gl

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

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'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); exports.editBottomMapStyle = exports.editTopMapStyle = undefined; var _defineProperty2 = require('babel-runtime/helpers/defineProperty'); var _defineProperty3 = _interopRequireDefault(_defineProperty2); var _extends3 = require('babel-runtime/helpers/extends'); var _extends4 = _interopRequireDefault(_extends3); exports.getDefaultLayerGroupVisibility = getDefaultLayerGroupVisibility; exports.isValidStyleUrl = isValidStyleUrl; exports.getStyleDownloadUrl = getStyleDownloadUrl; exports.scaleMapStyleByResolution = scaleMapStyleByResolution; exports.mergeLayerGroupVisibility = mergeLayerGroupVisibility; var _immutable = require('immutable'); var _immutable2 = _interopRequireDefault(_immutable); var _lodash = require('lodash.memoize'); var _lodash2 = _interopRequireDefault(_lodash); var _defaultSettings = require('../../constants/default-settings'); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function getDefaultLayerGroupVisibility(_ref) { var _ref$layerGroups = _ref.layerGroups, layerGroups = _ref$layerGroups === undefined ? [] : _ref$layerGroups; return layerGroups.reduce(function (accu, layer) { return (0, _extends4.default)({}, accu, (0, _defineProperty3.default)({}, layer.slug, layer.defaultVisibility)); }, {}); } // Copyright (c) 2018 Uber Technologies, Inc. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. var resolver = function resolver(_ref2) { var id = _ref2.id, mapStyle = _ref2.mapStyle, _ref2$visibleLayerGro = _ref2.visibleLayerGroups, visibleLayerGroups = _ref2$visibleLayerGro === undefined ? {} : _ref2$visibleLayerGro; return id + ':' + Object.keys(visibleLayerGroups).filter(function (d) { return visibleLayerGroups[d]; }).sort().join('-'); }; /** * Edit preset map style to keep only visible layers * * @param {object} mapStyle - preset map style * @param {object} visibleLayerGroups - visible layers of top map * @returns {Immutable.Map} top map style */ var editTopMapStyle = exports.editTopMapStyle = (0, _lodash2.default)(function (_ref3) { var id = _ref3.id, mapStyle = _ref3.mapStyle, visibleLayerGroups = _ref3.visibleLayerGroups; var visibleFilters = (mapStyle.layerGroups || []).filter(function (lg) { return visibleLayerGroups[lg.slug]; }).map(function (lg) { return lg.filter; }); // if top map // keep only visible layers var filteredLayers = mapStyle.style.layers.filter(function (layer) { return visibleFilters.some(function (match) { return match(layer); }); }); return _immutable2.default.fromJS((0, _extends4.default)({}, mapStyle.style, { layers: filteredLayers })); }, resolver); /** * Edit preset map style to filter out invisible layers * * @param {object} mapStyle - preset map style * @param {object} visibleLayerGroups - visible layers of bottom map * @returns {Immutable.Map} bottom map style */ var editBottomMapStyle = exports.editBottomMapStyle = (0, _lodash2.default)(function (_ref4) { var id = _ref4.id, mapStyle = _ref4.mapStyle, visibleLayerGroups = _ref4.visibleLayerGroups; var invisibleFilters = (mapStyle.layerGroups || []).filter(function (lg) { return !visibleLayerGroups[lg.slug]; }).map(function (lg) { return lg.filter; }); // if bottom map // filter out invisible layers var filteredLayers = mapStyle.style.layers.filter(function (layer) { return invisibleFilters.every(function (match) { return !match(layer); }); }); // console.log(filteredLayers) return _immutable2.default.fromJS((0, _extends4.default)({}, mapStyle.style, { layers: filteredLayers })); }, resolver); var mapUrlRg = /^mapbox:\/\/styles\/[-a-z0-9]{2,256}\/[-a-z0-9]{2,256}/; var httpRg = /^(?=(http:|https:))/; var mapboxStyleApiUrl = 'https://api.mapbox.com/styles/v1/'; // valid style url // mapbox://styles/uberdata/cjfyl03kp1tul2smf5v2tbdd4 // lowercase letters, numbers and dashes only. function isValidStyleUrl(url) { return typeof url === 'string' && Boolean(url.match(mapUrlRg) || url.match(httpRg)); } function getStyleDownloadUrl(styleUrl, accessToken) { if (styleUrl.startsWith('http')) { return styleUrl; } // mapbox://styles/jckr/cjhcl0lxv13di2rpfoytdbdyj if (styleUrl.startsWith('mapbox://styles')) { var styleId = styleUrl.replace('mapbox://styles/', ''); // https://api.mapbox.com/styles/v1/heshan0131/cjg1bfumo1cwm2rlrjxkinfgw?pluginName=Keplergl&access_token=<token> return '' + mapboxStyleApiUrl + styleId + '?pluginName=Keplergl&access_token=' + accessToken; } // style url not recognized return null; } function scaleMapStyleByResolution(mapboxStyle, resolution) { var labelLayerGroup = _defaultSettings.DEFAULT_LAYER_GROUPS.find(function (lg) { return lg.slug === 'label'; }); var labelLayerFilter = labelLayerGroup.filter; if (resolution !== _defaultSettings.RESOLUTIONS.ONE_X && mapboxStyle) { var _RESOLUTION_OPTIONS$f = _defaultSettings.RESOLUTION_OPTIONS.find(function (r) { return r.id === resolution; }), scale = _RESOLUTION_OPTIONS$f.scale, zoomOffset = _RESOLUTION_OPTIONS$f.zoomOffset; var copyStyle = mapboxStyle.toJS(); (copyStyle.layers || []).forEach(function (d) { // edit minzoom and maxzoom if (d.maxzoom) { d.maxzoom += zoomOffset; } if (d.minzoom) { d.minzoom += zoomOffset; } // edit text size if (labelLayerFilter(d)) { if (d.layout && d.layout['text-size'] && Array.isArray(d.layout['text-size'].stops)) { d.layout['text-size'].stops.forEach(function (stop) { // zoom stop[0] += Math.log2(scale); // size stop[1] *= scale; }); } } }); return _immutable2.default.fromJS(copyStyle); } return mapboxStyle; } /** * When switch to a new style, try to keep current layer group visibility * by merging default and current * @param {object} defaultLayerGroup * @param {object} currentLayerGroup * @return {object} mergedLayerGroups */ function mergeLayerGroupVisibility(defaultLayerGroup, currentLayerGroup) { return Object.keys(currentLayerGroup).reduce(function (accu, key) { return (0, _extends4.default)({}, accu, defaultLayerGroup.hasOwnProperty(key) ? (0, _defineProperty3.default)({}, key, currentLayerGroup[key]) : {}); }, defaultLayerGroup); } //# 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Copyright (c) 2018 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 Immutable from 'immutable';\nimport memoize from 'lodash.memoize';\nimport {\n  DEFAULT_LAYER_GROUPS,\n  RESOLUTIONS,\n  RESOLUTION_OPTIONS\n} from 'constants/default-settings';\n\nexport function getDefaultLayerGroupVisibility({layerGroups = []}) {\n  return layerGroups.reduce(\n    (accu, layer) => ({\n      ...accu,\n      [layer.slug]: layer.defaultVisibility\n    }),\n    {}\n  );\n}\n\nconst resolver = ({id, mapStyle, visibleLayerGroups = {}}) =>\n  `${id}:${Object.keys(visibleLayerGroups)\n    .filter(d => visibleLayerGroups[d])\n    .sort()\n    .join('-')}`;\n\n/**\n * Edit preset map style to keep only visible layers\n *\n * @param {object} mapStyle - preset map style\n * @param {object} visibleLayerGroups - visible layers of top map\n * @returns {Immutable.Map} top map style\n */\nexport const editTopMapStyle = memoize(({id, mapStyle, visibleLayerGroups}) => {\n  const visibleFilters = (mapStyle.layerGroups || [])\n    .filter(lg => visibleLayerGroups[lg.slug])\n    .map(lg => lg.filter);\n\n  // if top map\n  // keep only visible layers\n  const filteredLayers = mapStyle.style.layers.filter(layer =>\n    visibleFilters.some(match => match(layer))\n  );\n\n  return Immutable.fromJS({\n    ...mapStyle.style,\n    layers: filteredLayers\n  });\n}, resolver);\n\n/**\n * Edit preset map style to filter out invisible layers\n *\n * @param {object} mapStyle - preset map style\n * @param {object} visibleLayerGroups - visible layers of bottom map\n * @returns {Immutable.Map} bottom map style\n */\nexport const editBottomMapStyle = memoize(\n  ({id, mapStyle, visibleLayerGroups}) => {\n    const invisibleFilters = (mapStyle.layerGroups || [])\n      .filter(lg => !visibleLayerGroups[lg.slug])\n      .map(lg => lg.filter);\n\n    // if bottom map\n    // filter out invisible layers\n    const filteredLayers = mapStyle.style.layers.filter(layer =>\n      invisibleFilters.every(match => !match(layer))\n    );\n\n    // console.log(filteredLayers)\n    return Immutable.fromJS({\n      ...mapStyle.style,\n      layers: filteredLayers\n    });\n  },\n  resolver\n);\n\nconst mapUrlRg = /^mapbox:\\/\\/styles\\/[-a-z0-9]{2,256}\\/[-a-z0-9]{2,256}/;\nconst httpRg = /^(?=(http:|https:))/;\nconst mapboxStyleApiUrl = 'https://api.mapbox.com/styles/v1/';\n\n// valid style url\n// mapbox://styles/uberdata/cjfyl03kp1tul2smf5v2tbdd4\n// lowercase letters, numbers and dashes only.\nexport function isValidStyleUrl(url) {\n  return typeof url === 'string' && Boolean(url.match(mapUrlRg) || url.match(httpRg));\n}\n\nexport function getStyleDownloadUrl(styleUrl, accessToken) {\n  if (styleUrl.startsWith('http')) {\n    return styleUrl;\n  }\n\n  // mapbox://styles/jckr/cjhcl0lxv13di2rpfoytdbdyj\n  if (styleUrl.startsWith('mapbox://styles')) {\n    const styleId = styleUrl.replace('mapbox://styles/', '');\n\n    // https://api.mapbox.com/styles/v1/heshan0131/cjg1bfumo1cwm2rlrjxkinfgw?pluginName=Keplergl&access_token=<token>\n    return `${mapboxStyleApiUrl}${styleId}?pluginName=Keplergl&access_token=${accessToken}`\n  }\n\n  // style url not recognized\n  return null;\n}\n\nexport function scaleMapStyleByResolution(mapboxStyle, resolution) {\n  const labelLayerGroup = DEFAULT_LAYER_GROUPS.find(lg => lg.slug === 'label');\n  const {filter: labelLayerFilter} = labelLayerGroup;\n\n  if (resolution !== RESOLUTIONS.ONE_X && mapboxStyle) {\n    const {scale, zoomOffset} = RESOLUTION_OPTIONS.find(\n      r => r.id === resolution\n    );\n    const copyStyle = mapboxStyle.toJS();\n    (copyStyle.layers || []).forEach(d => {\n      // edit minzoom and maxzoom\n      if (d.maxzoom) {\n        d.maxzoom += zoomOffset;\n      }\n\n      if (d.minzoom) {\n        d.minzoom += zoomOffset;\n      }\n\n      // edit text size\n      if (labelLayerFilter(d)) {\n        if (\n          d.layout &&\n          d.layout['text-size'] &&\n          Array.isArray(d.layout['text-size'].stops)\n        ) {\n          d.layout['text-size'].stops.forEach(stop => {\n            // zoom\n            stop[0] += Math.log2(scale);\n            // size\n            stop[1] *= scale;\n          });\n        }\n      }\n    });\n\n    return Immutable.fromJS(copyStyle);\n  }\n\n  return mapboxStyle;\n}\n\n/**\n * When switch to a new style, try to keep current layer group visibility\n * by merging default and current\n * @param {object} defaultLayerGroup\n * @param {object} currentLayerGroup\n * @return {object} mergedLayerGroups\n */\nexport function mergeLayerGroupVisibility(defaultLayerGroup, currentLayerGroup) {\n  return Object.keys(currentLayerGroup)\n    .reduce((accu, key) => ({\n      ...accu,\n      ...(defaultLayerGroup.hasOwnProperty(key) ? {[key]: currentLayerGroup[key]} : {})\n    }), defaultLayerGroup);\n}\n\n"]}