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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 }); var _defineProperty2 = require('babel-runtime/helpers/defineProperty'); var _defineProperty3 = _interopRequireDefault(_defineProperty2); var _extends5 = require('babel-runtime/helpers/extends'); var _extends6 = _interopRequireDefault(_extends5); var _toConsumableArray2 = require('babel-runtime/helpers/toConsumableArray'); var _toConsumableArray3 = _interopRequireDefault(_toConsumableArray2); exports.generateMapboxLayers = generateMapboxLayers; exports.updateMapboxLayers = updateMapboxLayers; exports.geojsonFromPoints = geojsonFromPoints; var _baseLayer = require('./base-layer'); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } /** * This function will convert layers to mapbox layers * @param layers the layers to be converted * @param layerData extra layer information * @param layerOrder the order by which we should convert layers * @returns {*} */ function generateMapboxLayers() { var layers = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : []; var layerData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : []; var layerOrder = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; if (layerData.length > 0) { return layerOrder.slice().reverse().reduce(function (overlays, idx) { var layer = layers[idx]; return layer.overlayType !== _baseLayer.OVERLAY_TYPE.mapboxgl ? overlays : [].concat((0, _toConsumableArray3.default)(overlays), [{ id: layer.id, data: layerData[idx].data, config: layerData[idx].config, datasetId: layer.config.dataId }]); }, []); } return []; } // 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. ; /** * Update mapbox layers on the given map * @param map * @param newLayers Array of new mapbox layers to be displayed * @param oldLayers Map of the old layers to be compare with the current ones to detect deleted layers * {layerId: datasetId} * @param mapLayers carries information about split map view */ function updateMapboxLayers(map) { var newLayers = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : []; var oldLayers = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null; var mapLayers = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; var opt = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : { force: true }; // delete non existing layers if (oldLayers) { var oldLayersKeys = Object.keys(oldLayers); if (newLayers.length === 0 && oldLayersKeys.length > 0) { oldLayersKeys.forEach(function (layerId) { return map.removeLayer(layerId); }); } else { // remove layers var currentLayersIds = newLayers.reduce(function (final, layer) { return (0, _extends6.default)({}, final, (0, _defineProperty3.default)({}, layer.id, true)); }, {}); var layersToDelete = oldLayersKeys.reduce(function (final, layerId) { // if layer doesn't exists anymore if (!currentLayersIds[layerId]) { return (0, _extends6.default)({}, final, (0, _defineProperty3.default)({}, layerId, oldLayers[layerId])); } return final; }, []); Object.keys(layersToDelete).forEach(function (layerId) { return map.removeLayer(layerId); }); } } // insert or update newlayer newLayers.forEach(function (overlay) { var layerId = overlay.id, config = overlay.config, data = overlay.data, datasetId = overlay.datasetId; if (!data && !config) { return; } var isAvailableAndVisible = !(mapLayers && mapLayers[layerId]) || mapLayers[layerId].isVisible; // checking if source already exists if (data && isAvailableAndVisible) { var source = map.getSource(datasetId); if (!source) { map.addSource(datasetId, { type: 'geojson', data: data }); } else { source.setData(data); } } var oldConfig = oldLayers[layerId]; var mapboxLayer = map.getLayer(layerId); // compare with previous configs if (!oldConfig || oldConfig !== config || !mapboxLayer || opt.force) { // check if layer already is set // remove it if exists if (mapboxLayer) { map.removeLayer(layerId); } // add if visible and available if (isAvailableAndVisible) { map.addLayer(config); } } }); // TODO: think about removing sources }; /** * * @param points * @param columns { * lat: {fieldIdx}, * lng: {fieldIdx}, * alt: {fieldIdx} * } * @param properties [{label: {fieldIdx}] * @returns {{type: string, properties: {}, features: {type: string, properties: {}, geometry: {type: string, coordinates: *[]}}[]}} */ function geojsonFromPoints() { var allData = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : []; var filteredIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : []; var columns = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}; var properties = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : []; return { type: 'FeatureCollection', features: filteredIndex.map(function (index) { return allData[index]; }).map(function (point) { return { type: 'Feature', properties: properties.reduce(function (final, property) { return (0, _extends6.default)({}, final, (0, _defineProperty3.default)({}, property.name, point[property.tableFieldIndex - 1])); }, {}), geometry: { type: 'Point', coordinates: [columns.lng ? point[columns.lng.fieldIdx] : null, // lng columns.lat ? point[columns.lat.fieldIdx] : null, // lat columns.altitude ? point[columns.altitude.fieldIdx] : 0 // altitude ] } }; }) }; } //# 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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 {OVERLAY_TYPE} from './base-layer';\n\n/**\n * This function will convert layers to mapbox layers\n * @param layers the layers to be converted\n * @param layerData extra layer information\n * @param layerOrder the order by which we should convert layers\n * @returns {*}\n */\nexport function generateMapboxLayers(layers = [], layerData = [], layerOrder = []) {\n  if (layerData.length > 0) {\n    return layerOrder.slice()\n      .reverse()\n      .reduce((overlays, idx) => {\n        const layer = layers[idx];\n\n        return layer.overlayType !== OVERLAY_TYPE.mapboxgl ?\n          overlays\n          : [\n            ...overlays,\n            {\n              id: layer.id,\n              data: layerData[idx].data,\n              config: layerData[idx].config,\n              datasetId: layer.config.dataId\n            }\n          ]\n      }, []);\n  }\n\n  return [];\n};\n\n/**\n * Update mapbox layers on the given map\n * @param map\n * @param newLayers Array of new mapbox layers to be displayed\n * @param oldLayers Map of the old layers to be compare with the current ones to detect deleted layers\n *                  {layerId: datasetId}\n * @param mapLayers carries information about split map view\n */\nexport function updateMapboxLayers(map, newLayers = [], oldLayers = null, mapLayers = null, opt = {force: true}) {\n  // delete non existing layers\n\n  if (oldLayers) {\n    const oldLayersKeys = Object.keys(oldLayers);\n    if (newLayers.length === 0 && oldLayersKeys.length > 0) {\n      oldLayersKeys.forEach(layerId => map.removeLayer(layerId));\n    } else {\n      // remove layers\n      const currentLayersIds = newLayers.reduce((final, layer) => ({\n        ...final,\n        [layer.id]: true\n      }), {});\n\n      const layersToDelete = oldLayersKeys.reduce((final, layerId) => {\n        // if layer doesn't exists anymore\n        if (!currentLayersIds[layerId]) {\n          return {\n            ...final,\n            [layerId]: oldLayers[layerId]\n          };\n        }\n        return final;\n      }, []);\n      Object.keys(layersToDelete).forEach(layerId => map.removeLayer(layerId));\n    }\n  }\n\n  // insert or update newlayer\n  newLayers.forEach(overlay => {\n    const {id: layerId, config, data, datasetId} = overlay;\n    if (!data && !config) {\n      return;\n    }\n    const isAvailableAndVisible =\n      !(mapLayers && mapLayers[layerId]) || mapLayers[layerId].isVisible;\n    // checking if source already exists\n\n    if (data && isAvailableAndVisible) {\n      const source = map.getSource(datasetId);\n      if (!source) {\n        map.addSource(datasetId, {\n          type: 'geojson',\n          data\n        });\n      }\n      else {\n        source.setData(data);\n      }\n    }\n\n    const oldConfig = oldLayers[layerId];\n    const mapboxLayer = map.getLayer(layerId);\n    // compare with previous configs\n\n    if (!oldConfig || oldConfig !== config || !mapboxLayer || opt.force) {\n      // check if layer already is set\n      // remove it if exists\n      if (mapboxLayer) {\n        map.removeLayer(layerId);\n      }\n      // add if visible and available\n      if (isAvailableAndVisible) {\n        map.addLayer(config);\n      }\n    }\n  });\n  // TODO: think about removing sources\n};\n\n/**\n *\n * @param points\n * @param columns {\n * lat: {fieldIdx},\n * lng: {fieldIdx},\n * alt: {fieldIdx}\n * }\n * @param properties [{label: {fieldIdx}]\n * @returns {{type: string, properties: {}, features: {type: string, properties: {}, geometry: {type: string, coordinates: *[]}}[]}}\n */\nexport function geojsonFromPoints(allData = [], filteredIndex = [], columns = {}, properties = []) {\n  return {\n    type: 'FeatureCollection',\n    features: filteredIndex.map(index => allData[index]).map(point => ({\n      type: 'Feature',\n      properties: properties.reduce((final, property) => ({\n        ...final,\n        [property.name]: point[property.tableFieldIndex - 1]\n      }), {}),\n      geometry: {\n        type: 'Point',\n        coordinates: [\n          columns.lng ? point[columns.lng.fieldIdx] : null, // lng\n          columns.lat ? point[columns.lat.fieldIdx] : null, // lat\n          columns.altitude ? point[columns.altitude.fieldIdx] : 0 // altitude\n        ]\n      }\n    }))\n  };\n}\n"]}