kepler.gl.geoiq
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
174 lines (144 loc) • 19.3 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.generateMapboxLayers = generateMapboxLayers;
exports.geojsonFromPoints = geojsonFromPoints;
exports.updateMapboxLayers = updateMapboxLayers;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _baseLayer = require("./base-layer");
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2["default"])(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
/**
* This function will convert layers to mapbox layers
* @param {Array<Object>} layers the layers to be converted
* @param {Array<Object>} layerData extra layer information
* @param {Array<Number>} layerOrder the order by which we should convert layers
* @param {Object} layersToRender {[id]: true | false} object whether each layer should be rendered
* @returns {Object} {[id]: layer}
*/
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] : [];
var layersToRender = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
if (layerData.length > 0) {
return layerOrder.slice().reverse().filter(function (idx) {
return layers[idx].overlayType === _baseLayer.OVERLAY_TYPE.mapboxgl && layersToRender[layers[idx].id];
}).reduce(function (accu, index) {
var layer = layers[index];
return _objectSpread(_objectSpread({}, accu), {}, (0, _defineProperty2["default"])({}, layer.id, {
id: layer.id,
data: layerData[index].data,
isVisible: layer.config.isVisible,
config: layerData[index].config,
sourceId: layerData[index].config.source
}));
}, {});
}
return {};
}
/**
* Update mapbox layers on the given map
* @param {Object} map
* @param {Object} newLayers Map of new mapbox layers to be displayed
* @param {Object} oldLayers Map of the old layers to be compare with the current ones to detect deleted layers
* {layerId: sourceId}
*/
function updateMapboxLayers(map) {
var newLayers = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var oldLayers = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
// delete no longer existed old layers
if (oldLayers) {
checkAndRemoveOldLayers(map, oldLayers, newLayers);
} // insert or update new layer
Object.values(newLayers).forEach(function (overlay) {
var layerId = overlay.id,
config = overlay.config,
data = overlay.data,
sourceId = overlay.sourceId,
isVisible = overlay.isVisible;
if (!data && !config) {
return;
}
var _ref = oldLayers && oldLayers[layerId] || {},
oldData = _ref.data,
oldConfig = _ref.config;
if (data && data !== oldData) {
updateSourceData(map, sourceId, data);
} // compare with previous configs
if (oldConfig !== config) {
updateLayerConfig(map, layerId, config, isVisible);
}
});
}
function checkAndRemoveOldLayers(map, oldLayers, newLayers) {
Object.keys(oldLayers).forEach(function (layerId) {
if (!newLayers[layerId]) {
map.removeLayer(layerId);
}
});
}
function updateLayerConfig(map, layerId, config, isVisible) {
var mapboxLayer = map.getLayer(layerId);
if (mapboxLayer) {
// check if layer already is set
// remove it if exists
map.removeLayer(layerId);
}
map.addLayer(config);
map.setLayoutProperty(layerId, 'visibility', isVisible ? 'visible' : 'none');
}
function updateSourceData(map, sourceId, data) {
var source = map.getSource(sourceId);
if (!source) {
map.addSource(sourceId, {
type: 'geojson',
data: data
});
} else {
source.setData(data);
}
}
/**
*
* @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] : [];
var geojson = {
type: 'FeatureCollection',
features: []
};
var _loop = function _loop() {
var point = allData[filteredIndex[i]];
geojson.features.push({
type: 'Feature',
properties: properties.reduce(function (_final, property) {
return _objectSpread(_objectSpread({}, _final), {}, (0, _defineProperty2["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
]
}
});
};
for (var i = 0; i < filteredIndex.length; i++) {
_loop();
}
return geojson;
}
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Copyright (c) 2023 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 {Array<Object>} layers the layers to be converted\n * @param {Array<Object>} layerData extra layer information\n * @param {Array<Number>} layerOrder the order by which we should convert layers\n * @param {Object} layersToRender {[id]: true | false} object whether each layer should be rendered\n * @returns {Object} {[id]: layer}\n */\nexport function generateMapboxLayers(\n  layers = [],\n  layerData = [],\n  layerOrder = [],\n  layersToRender = {}\n) {\n  if (layerData.length > 0) {\n    return layerOrder\n      .slice()\n      .reverse()\n      .filter(\n        idx =>\n          layers[idx].overlayType === OVERLAY_TYPE.mapboxgl &&\n          layersToRender[layers[idx].id]\n      )\n      .reduce((accu, index) => {\n        const layer = layers[index];\n        return {\n          ...accu,\n          [layer.id]: {\n            id: layer.id,\n            data: layerData[index].data,\n            isVisible: layer.config.isVisible,\n            config: layerData[index].config,\n            sourceId: layerData[index].config.source\n          }\n        };\n      }, {});\n  }\n\n  return {};\n}\n\n/**\n * Update mapbox layers on the given map\n * @param {Object} map\n * @param {Object} newLayers Map of new mapbox layers to be displayed\n * @param {Object} oldLayers Map of the old layers to be compare with the current ones to detect deleted layers\n *                  {layerId: sourceId}\n */\nexport function updateMapboxLayers(map, newLayers = {}, oldLayers = null) {\n  // delete no longer existed old layers\n  if (oldLayers) {\n    checkAndRemoveOldLayers(map, oldLayers, newLayers);\n  }\n\n  // insert or update new layer\n  Object.values(newLayers).forEach(overlay => {\n    const {id: layerId, config, data, sourceId, isVisible} = overlay;\n    if (!data && !config) {\n      return;\n    }\n\n    const {data: oldData, config: oldConfig} =\n      (oldLayers && oldLayers[layerId]) || {};\n\n    if (data && data !== oldData) {\n      updateSourceData(map, sourceId, data);\n    }\n\n    // compare with previous configs\n    if (oldConfig !== config) {\n      updateLayerConfig(map, layerId, config, isVisible);\n    }\n  });\n}\n\nfunction checkAndRemoveOldLayers(map, oldLayers, newLayers) {\n  Object.keys(oldLayers).forEach(layerId => {\n    if (!newLayers[layerId]) {\n      map.removeLayer(layerId);\n    }\n  });\n}\n\nfunction updateLayerConfig(map, layerId, config, isVisible) {\n  const mapboxLayer = map.getLayer(layerId);\n\n  if (mapboxLayer) {\n    // check if layer already is set\n    // remove it if exists\n    map.removeLayer(layerId);\n  }\n\n  map.addLayer(config);\n  map.setLayoutProperty(layerId, 'visibility', isVisible ? 'visible' : 'none');\n}\n\nfunction updateSourceData(map, sourceId, data) {\n  const source = map.getSource(sourceId);\n\n  if (!source) {\n    map.addSource(sourceId, {\n      type: 'geojson',\n      data\n    });\n  } else {\n    source.setData(data);\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(\n  allData = [],\n  filteredIndex = [],\n  columns = {},\n  properties = []\n) {\n  const geojson = {\n    type: 'FeatureCollection',\n    features: []\n  };\n\n  for (let i = 0; i < filteredIndex.length; i++) {\n    const point = allData[filteredIndex[i]];\n    geojson.features.push({\n      type: 'Feature',\n      properties: properties.reduce(\n        (final, property) => ({\n          ...final,\n          [property.name]: point[property.tableFieldIndex - 1]\n        }),\n        {}\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        ]\n      }\n    });\n  }\n\n  return geojson;\n}\n"]}