kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
254 lines (242 loc) • 34.7 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.assignGpuChannel = assignGpuChannel;
exports.assignGpuChannels = assignGpuChannels;
exports.getDatasetFieldIndexForFilter = getDatasetFieldIndexForFilter;
exports.getGpuFilterProps = getGpuFilterProps;
exports.resetFilterGpuMode = resetFilterGpuMode;
exports.setFilterGpuMode = setFilterGpuMode;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _moment = _interopRequireDefault(require("moment"));
var _constants = require("@kepler.gl/constants");
var _utils = require("@kepler.gl/utils");
var _commonUtils = require("@kepler.gl/common-utils");
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; } // SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
/**
* Set gpu mode based on current number of gpu filters exists
*/
function setFilterGpuMode(filter, filters) {
// filter can be applied to multiple datasets, hence gpu filter mode should also be
// an array, however, to keep us sane, for now, we only check if there is available channel for every dataId,
// if all of them has, we set gpu mode to true
// TODO: refactor filter so we don't keep an array of everything
filter.dataId.forEach(function (dataId) {
var gpuFilters = filters.filter(function (f) {
return f.dataId.includes(dataId) && f.gpu;
});
if (filter.gpu && gpuFilters.length === _constants.MAX_GPU_FILTERS) {
(0, _utils.set)(['gpu'], false, filter);
}
});
return filter;
}
/**
* Scan though all filters and assign gpu chanel to gpu filter
*/
function assignGpuChannels(allFilters) {
return allFilters.reduce(function (accu, f, index) {
var filters = accu;
// if gpu is true assign and validate gpu Channel
if (f.gpu) {
f = assignGpuChannel(f, accu);
filters = (0, _utils.set)([index], f, accu);
}
return filters;
}, allFilters);
}
/**
* Assign a new gpu filter a channel based on first availability
*/
function assignGpuChannel(filter, filters) {
// find first available channel
if (!filter.gpu) {
return filter;
}
var gpuChannel = filter.gpuChannel || [];
filter.dataId.forEach(function (dataId, datasetIdx) {
var findGpuChannel = function findGpuChannel(channel) {
return function (f) {
var dataIdx = (0, _commonUtils.toArray)(f.dataId).indexOf(dataId);
return f.id !== filter.id && dataIdx > -1 && f.gpu && (0, _commonUtils.toArray)(f.gpuChannel)[dataIdx] === channel;
};
};
if (Number.isFinite(gpuChannel[datasetIdx]) && !filters.find(findGpuChannel(gpuChannel[datasetIdx]))) {
// if value is already assigned and valid
return;
}
var i = 0;
while (i < _constants.MAX_GPU_FILTERS) {
if (!filters.find(findGpuChannel(i))) {
gpuChannel[datasetIdx] = i;
return;
}
i++;
}
});
// if cannot find channel for all dataid, set gpu back to false
// TODO: refactor filter to handle same filter different gpu mode
if (!gpuChannel.length || !gpuChannel.every(Number.isFinite)) {
return _objectSpread(_objectSpread({}, filter), {}, {
gpu: false
});
}
return _objectSpread(_objectSpread({}, filter), {}, {
gpuChannel: gpuChannel
});
}
/**
* Edit filter.gpu to ensure that only
* X number of gpu filers can coexist.
*/
function resetFilterGpuMode(filters) {
var gpuPerDataset = {};
return filters.map(function (f) {
if (f.gpu) {
var gpu = true;
(0, _commonUtils.toArray)(f.dataId).forEach(function (dataId) {
var count = gpuPerDataset[dataId];
if (count === _constants.MAX_GPU_FILTERS) {
gpu = false;
} else {
gpuPerDataset[dataId] = count ? count + 1 : 1;
}
});
if (!gpu) {
return (0, _utils.set)(['gpu'], false, f);
}
}
return f;
});
}
/**
* Initial filter uniform
*/
function getEmptyFilterRange() {
return new Array(_constants.MAX_GPU_FILTERS).fill(0).map(function () {
return [0, 0];
});
}
/**
* Returns index of the data element.
* @param {any} d Data element with row index info.
* @returns number
*/
var defaultGetIndex = function defaultGetIndex(d) {
return d.index;
};
/**
* Returns value at the specified row from the data container.
* @param dc Data container.
* @param d Data element with row index info.
* @param fieldIndex Column index in the data container.
* @returns
*/
var defaultGetData = function defaultGetData(dc, d, fieldIndex) {
return dc.valueAt(d.index, fieldIndex);
};
var getFilterValueAccessor = function getFilterValueAccessor(channels, dataId, fields) {
return function (dc) {
return function () {
var getIndex = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultGetIndex;
var getData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultGetData;
return function (d, objectInfo) {
// for empty channel, value is 0 and min max would be [0, 0]
var channelValues = channels.map(function (filter) {
var _filter$domain2;
if (!filter) {
return 0;
}
var fieldIndex = getDatasetFieldIndexForFilter(dataId, filter);
var field = fields[fieldIndex];
var value;
// d can be undefined when called from attribute updater from deck,
// when data is an ArrowTable, so use objectInfo instead.
var data = getData(dc, d || objectInfo, fieldIndex);
if (typeof data === 'function') {
value = data(field);
} else {
value = filter.type === _constants.FILTER_TYPES.timeRange ? field.filterProps && Array.isArray(field.filterProps.mappedValue) ? field.filterProps.mappedValue[getIndex(d)] : _moment["default"].utc(data).valueOf() : data;
}
return (0, _commonUtils.notNullorUndefined)(value) ? Array.isArray(value) ? value.map(function (v) {
var _filter$domain;
return v - ((_filter$domain = filter.domain) === null || _filter$domain === void 0 ? void 0 : _filter$domain[0]);
}) : value - ((_filter$domain2 = filter.domain) === null || _filter$domain2 === void 0 ? void 0 : _filter$domain2[0]) : Number.MIN_SAFE_INTEGER;
});
// TODO: can we refactor the above to avoid the transformation below?
var arrChannel = channelValues.find(function (v) {
return Array.isArray(v);
});
if (Array.isArray(arrChannel)) {
// Convert info form supported by DataFilterExtension (relevant for TripLayer)
var vals = [];
// if there are multiple arrays, they should have the same length
var _loop = function _loop(i) {
vals.push(channelValues.map(function (v) {
return Array.isArray(v) ? v[i] : v;
}));
};
for (var i = 0; i < arrChannel.length; i++) {
_loop(i);
}
return vals;
}
return channelValues;
};
};
};
};
function isFilterTriggerEqual(a, b) {
return a === b || (a === null || a === void 0 ? void 0 : a.name) === (b === null || b === void 0 ? void 0 : b.name) && (a === null || a === void 0 ? void 0 : a.domain0) === (b === null || b === void 0 ? void 0 : b.domain0);
}
/**
* Get filter properties for gpu filtering
*/
function getGpuFilterProps(filters, dataId, fields, oldGpuFilter) {
var filterRange = getEmptyFilterRange();
var triggers = {};
// array of filter for each channel, undefined, if no filter is assigned to that channel
var channels = [];
var _loop2 = function _loop2(i) {
var _filter$domain3, _filter$domain4, _oldGpuFilter$filterV, _filter$domain5;
var filter = filters.find(function (f) {
return f.gpu && f.dataId.includes(dataId) && f.gpuChannel && f.gpuChannel[f.dataId.indexOf(dataId)] === i;
});
filterRange[i][0] = filter ? filter.value[0] - ((_filter$domain3 = filter.domain) === null || _filter$domain3 === void 0 ? void 0 : _filter$domain3[0]) : 0;
filterRange[i][1] = filter ? filter.value[1] - ((_filter$domain4 = filter.domain) === null || _filter$domain4 === void 0 ? void 0 : _filter$domain4[0]) : 0;
var oldFilterTrigger = (oldGpuFilter === null || oldGpuFilter === void 0 || (_oldGpuFilter$filterV = oldGpuFilter.filterValueUpdateTriggers) === null || _oldGpuFilter$filterV === void 0 ? void 0 : _oldGpuFilter$filterV["gpuFilter_".concat(i)]) || null;
var trigger = filter ? {
name: filter.name[filter.dataId.indexOf(dataId)],
domain0: (_filter$domain5 = filter.domain) === null || _filter$domain5 === void 0 ? void 0 : _filter$domain5[0]
} : null;
// don't create a new object, cause deck.gl use shallow compare
triggers["gpuFilter_".concat(i)] = isFilterTriggerEqual(trigger, oldFilterTrigger) ? oldFilterTrigger : trigger;
channels.push(filter);
};
for (var i = 0; i < _constants.MAX_GPU_FILTERS; i++) {
_loop2(i);
}
var filterValueAccessor = getFilterValueAccessor(channels, dataId, fields);
return {
filterRange: filterRange,
filterValueUpdateTriggers: triggers,
filterValueAccessor: filterValueAccessor
};
}
/**
* Return dataset field index from filter.fieldIdx
* The index matches the same dataset index for filter.dataId
*/
function getDatasetFieldIndexForFilter(dataId, filter) {
var datasetIndex = (0, _commonUtils.toArray)(filter.dataId).indexOf(dataId);
if (datasetIndex < 0) {
return -1;
}
var fieldIndex = filter.fieldIdx[datasetIndex];
return (0, _commonUtils.notNullorUndefined)(fieldIndex) ? fieldIndex : -1;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_moment","_interopRequireDefault","require","_constants","_utils","_commonUtils","ownKeys","e","r","t","Object","keys","getOwnPropertySymbols","o","filter","getOwnPropertyDescriptor","enumerable","push","apply","_objectSpread","arguments","length","forEach","_defineProperty2","getOwnPropertyDescriptors","defineProperties","defineProperty","setFilterGpuMode","filters","dataId","gpuFilters","f","includes","gpu","MAX_GPU_FILTERS","set","assignGpuChannels","allFilters","reduce","accu","index","assignGpuChannel","gpuChannel","datasetIdx","findGpuChannel","channel","dataIdx","toArray","indexOf","id","Number","isFinite","find","i","every","resetFilterGpuMode","gpuPerDataset","map","count","getEmptyFilterRange","Array","fill","defaultGetIndex","d","defaultGetData","dc","fieldIndex","valueAt","getFilterValueAccessor","channels","fields","getIndex","undefined","getData","objectInfo","channelValues","_filter$domain2","getDatasetFieldIndexForFilter","field","value","data","type","FILTER_TYPES","timeRange","filterProps","isArray","mappedValue","moment","utc","valueOf","notNullorUndefined","v","_filter$domain","domain","MIN_SAFE_INTEGER","arrChannel","vals","_loop","isFilterTriggerEqual","a","b","name","domain0","getGpuFilterProps","oldGpuFilter","filterRange","triggers","_loop2","_filter$domain3","_filter$domain4","_oldGpuFilter$filterV","_filter$domain5","oldFilterTrigger","filterValueUpdateTriggers","concat","trigger","filterValueAccessor","datasetIndex","fieldIdx"],"sources":["../src/gpu-filter-utils.ts"],"sourcesContent":["// SPDX-License-Identifier: MIT\n// Copyright contributors to the kepler.gl project\n\nimport moment from 'moment';\nimport {MAX_GPU_FILTERS, FILTER_TYPES} from '@kepler.gl/constants';\nimport {Field, Filter} from '@kepler.gl/types';\nimport {set, DataContainerInterface} from '@kepler.gl/utils';\nimport {toArray, notNullorUndefined} from '@kepler.gl/common-utils';\n\nimport {GpuFilter} from './kepler-table';\n\n/**\n * Set gpu mode based on current number of gpu filters exists\n */\nexport function setFilterGpuMode(filter: Filter, filters: Filter[]) {\n  // filter can be applied to multiple datasets, hence gpu filter mode should also be\n  // an array, however, to keep us sane, for now, we only check if there is available channel for every dataId,\n  // if all of them has, we set gpu mode to true\n  // TODO: refactor filter so we don't keep an array of everything\n\n  filter.dataId.forEach(dataId => {\n    const gpuFilters = filters.filter(f => f.dataId.includes(dataId) && f.gpu);\n\n    if (filter.gpu && gpuFilters.length === MAX_GPU_FILTERS) {\n      set(['gpu'], false, filter);\n    }\n  });\n\n  return filter;\n}\n\n/**\n * Scan though all filters and assign gpu chanel to gpu filter\n */\nexport function assignGpuChannels(allFilters: Filter[]) {\n  return allFilters.reduce((accu, f, index) => {\n    let filters = accu;\n\n    // if gpu is true assign and validate gpu Channel\n    if (f.gpu) {\n      f = assignGpuChannel(f, accu);\n      filters = set([index], f, accu);\n    }\n\n    return filters;\n  }, allFilters);\n}\n/**\n * Assign a new gpu filter a channel based on first availability\n */\nexport function assignGpuChannel(filter: Filter, filters: Filter[]) {\n  // find first available channel\n  if (!filter.gpu) {\n    return filter;\n  }\n\n  const gpuChannel = filter.gpuChannel || [];\n\n  filter.dataId.forEach((dataId, datasetIdx) => {\n    const findGpuChannel = channel => f => {\n      const dataIdx = toArray(f.dataId).indexOf(dataId);\n      return (\n        f.id !== filter.id && dataIdx > -1 && f.gpu && toArray(f.gpuChannel)[dataIdx] === channel\n      );\n    };\n\n    if (\n      Number.isFinite(gpuChannel[datasetIdx]) &&\n      !filters.find(findGpuChannel(gpuChannel[datasetIdx]))\n    ) {\n      // if value is already assigned and valid\n      return;\n    }\n\n    let i = 0;\n\n    while (i < MAX_GPU_FILTERS) {\n      if (!filters.find(findGpuChannel(i))) {\n        gpuChannel[datasetIdx] = i;\n        return;\n      }\n      i++;\n    }\n  });\n\n  // if cannot find channel for all dataid, set gpu back to false\n  // TODO: refactor filter to handle same filter different gpu mode\n  if (!gpuChannel.length || !gpuChannel.every(Number.isFinite)) {\n    return {\n      ...filter,\n      gpu: false\n    };\n  }\n\n  return {\n    ...filter,\n    gpuChannel\n  };\n}\n/**\n * Edit filter.gpu to ensure that only\n * X number of gpu filers can coexist.\n */\nexport function resetFilterGpuMode(filters: Filter[]): Filter[] {\n  const gpuPerDataset = {};\n\n  return filters.map(f => {\n    if (f.gpu) {\n      let gpu = true;\n      toArray(f.dataId).forEach(dataId => {\n        const count = gpuPerDataset[dataId];\n\n        if (count === MAX_GPU_FILTERS) {\n          gpu = false;\n        } else {\n          gpuPerDataset[dataId] = count ? count + 1 : 1;\n        }\n      });\n\n      if (!gpu) {\n        return set(['gpu'], false, f);\n      }\n    }\n\n    return f;\n  });\n}\n\n/**\n * Initial filter uniform\n */\nfunction getEmptyFilterRange() {\n  return new Array(MAX_GPU_FILTERS).fill(0).map(() => [0, 0]);\n}\n\n/**\n * Returns index of the data element.\n * @param {any} d Data element with row index info.\n * @returns number\n */\nconst defaultGetIndex = d => d.index;\n\n/**\n * Returns value at the specified row from the data container.\n * @param dc Data container.\n * @param d Data element with row index info.\n * @param fieldIndex Column index in the data container.\n * @returns\n */\nconst defaultGetData = (dc: DataContainerInterface, d: any, fieldIndex: number) => {\n  return dc.valueAt(d.index, fieldIndex);\n};\n\nconst getFilterValueAccessor =\n  (channels: (Filter | undefined)[], dataId: string, fields: any[]) =>\n  (dc: DataContainerInterface) =>\n  (getIndex = defaultGetIndex, getData = defaultGetData) =>\n  (d, objectInfo?: {index: number}) => {\n    // for empty channel, value is 0 and min max would be [0, 0]\n    const channelValues = channels.map(filter => {\n      if (!filter) {\n        return 0;\n      }\n      const fieldIndex = getDatasetFieldIndexForFilter(dataId, filter);\n      const field = fields[fieldIndex];\n\n      let value;\n      // d can be undefined when called from attribute updater from deck,\n      // when data is an ArrowTable, so use objectInfo instead.\n      const data = getData(dc, d || objectInfo, fieldIndex);\n      if (typeof data === 'function') {\n        value = data(field);\n      } else {\n        value =\n          filter.type === FILTER_TYPES.timeRange\n            ? field.filterProps && Array.isArray(field.filterProps.mappedValue)\n              ? field.filterProps.mappedValue[getIndex(d)]\n              : moment.utc(data).valueOf()\n            : data;\n      }\n\n      return notNullorUndefined(value)\n        ? Array.isArray(value)\n          ? value.map(v => v - filter.domain?.[0])\n          : value - filter.domain?.[0]\n        : Number.MIN_SAFE_INTEGER;\n    });\n\n    // TODO: can we refactor the above to avoid the transformation below?\n    const arrChannel = channelValues.find(v => Array.isArray(v));\n    if (Array.isArray(arrChannel)) {\n      // Convert info form supported by DataFilterExtension (relevant for TripLayer)\n      const vals: number[][] = [];\n      // if there are multiple arrays, they should have the same length\n      for (let i = 0; i < arrChannel.length; i++) {\n        vals.push(channelValues.map(v => (Array.isArray(v) ? v[i] : v)));\n      }\n      return vals;\n    }\n\n    return channelValues;\n  };\n\nfunction isFilterTriggerEqual(a, b) {\n  return a === b || (a?.name === b?.name && a?.domain0 === b?.domain0);\n}\n\n/**\n * Get filter properties for gpu filtering\n */\nexport function getGpuFilterProps(\n  filters: Filter[],\n  dataId: string,\n  fields: Field[],\n  oldGpuFilter?: GpuFilter\n): GpuFilter {\n  const filterRange = getEmptyFilterRange();\n  const triggers: GpuFilter['filterValueUpdateTriggers'] = {};\n\n  // array of filter for each channel, undefined, if no filter is assigned to that channel\n  const channels: (Filter | undefined)[] = [];\n\n  for (let i = 0; i < MAX_GPU_FILTERS; i++) {\n    const filter = filters.find(\n      f =>\n        f.gpu &&\n        f.dataId.includes(dataId) &&\n        f.gpuChannel &&\n        f.gpuChannel[f.dataId.indexOf(dataId)] === i\n    );\n\n    filterRange[i][0] = filter ? filter.value[0] - filter.domain?.[0] : 0;\n    filterRange[i][1] = filter ? filter.value[1] - filter.domain?.[0] : 0;\n    const oldFilterTrigger = oldGpuFilter?.filterValueUpdateTriggers?.[`gpuFilter_${i}`] || null;\n\n    const trigger = filter\n      ? {\n          name: filter.name[filter.dataId.indexOf(dataId)],\n          domain0: filter.domain?.[0]\n        }\n      : null;\n    // don't create a new object, cause deck.gl use shallow compare\n    triggers[`gpuFilter_${i}`] = isFilterTriggerEqual(trigger, oldFilterTrigger)\n      ? oldFilterTrigger\n      : trigger;\n    channels.push(filter);\n  }\n\n  const filterValueAccessor = getFilterValueAccessor(channels, dataId, fields);\n\n  return {\n    filterRange,\n    filterValueUpdateTriggers: triggers,\n    filterValueAccessor\n  };\n}\n\n/**\n * Return dataset field index from filter.fieldIdx\n * The index matches the same dataset index for filter.dataId\n */\nexport function getDatasetFieldIndexForFilter(dataId: string, filter: Filter): number {\n  const datasetIndex = toArray(filter.dataId).indexOf(dataId);\n  if (datasetIndex < 0) {\n    return -1;\n  }\n\n  const fieldIndex = filter.fieldIdx[datasetIndex];\n\n  return notNullorUndefined(fieldIndex) ? fieldIndex : 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