kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
198 lines (172 loc) • 20.1 kB
JavaScript
;
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"]}