deno.land / x / billboardjs@3.6.0 / ChartInternal / data / convert.ts
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/** * Get data key for JSON * @param {string|object} keysParam Key params * @param {object} config Config object * @returns {string} Data key * @private */function getDataKeyForJson(keysParam, config) { const keys = keysParam || config?.data_keys;
if (keys?.x) { config.data_x = keys.x; }
return keys;}
/** * Data convert * @memberof ChartInternal * @private */export default { /** * Convert data according its type * @param {object} args data object * @param {Function} [callback] callback for url(XHR) type loading * @private */ convertData(args, callback: Function): void { const {config} = this; const useWorker = config.boost_useWorker; let data = args;
if (args.bindto) { data = {};
["url", "mimeType", "headers", "keys", "json", "keys", "rows", "columns"] .forEach(v => { const key = `data_${v}`;
if (key in args) { data[v] = args[key]; } }); }
if (data.url && callback) { url(data.url, data.mimeType, data.headers, getDataKeyForJson(data.keys, config), callback ); } else if (data.json) { runWorker(useWorker, json, callback, [columns, rows])( data.json, getDataKeyForJson(data.keys, config) ); } else if (data.rows) { runWorker(useWorker, rows, callback)(data.rows); } else if (data.columns) { runWorker(useWorker, columns, callback)(data.columns); } else if (args.bindto) { throw Error("url or json or rows or columns is required."); } },
convertDataToTargets(data: {[key:string]: number|null}[], appendXs: boolean): IData[] { const $$ = this; const {axis, config, state} = $$; let isCategorized = false; let isTimeSeries = false; let isCustomX = false;
if (axis) { isCategorized = axis.isCategorized(); isTimeSeries = axis.isTimeSeries(); isCustomX = axis.isCustomX(); }
const dataKeys = Object.keys(data[0] || {}); const ids = dataKeys.length ? dataKeys.filter($$.isNotX, $$) : []; const xs = dataKeys.length ? dataKeys.filter($$.isX, $$) : [];
let xsData;
// save x for update data by load when custom x and bb.x API ids.forEach(id => { const xKey = this.getXKey(id);
if (isCustomX || isTimeSeries) { // if included in input data if (xs.indexOf(xKey) >= 0) { xsData = ((appendXs && $$.data.xs[id]) || []) .concat( data.map(d => d[xKey]) .filter(isValue) .map((rawX, i) => $$.generateTargetX(rawX, id, i)) ); } else if (config.data_x) { // if not included in input data, find from preloaded data of other id's x xsData = this.getOtherTargetXs(); } else if (notEmpty(config.data_xs)) { // if not included in input data, find from preloaded data xsData = $$.getXValuesOfXKey(xKey, $$.data.targets); } // MEMO: if no x included, use same x of current will be used } else { xsData = data.map((d, i) => i); }
xsData && (this.data.xs[id] = xsData); });
// check x is defined ids.forEach(id => { if (!this.data.xs[id]) { throw new Error(`x is not defined for id = "${id}".`); } });
// convert to target const targets = ids.map((id, index) => { const convertedId = config.data_idConverter.bind($$.api)(id); const xKey = $$.getXKey(id); const isCategory = isCustomX && isCategorized; const hasCategory = isCategory && data.map(v => v.x) .every(v => config.axis_x_categories.indexOf(v) > -1);
// when .load() with 'append' option is used for indexed axis // @ts-ignore const isDataAppend = data.__append__; const xIndex = xKey === null && isDataAppend ? $$.api.data.values(id).length : 0;
return { id: convertedId, id_org: id, values: data.map((d, i) => { const rawX = d[xKey]; let value = d[id]; let x;
value = value !== null && !isNaN(value) && !isObject(value) ? +value : (isArray(value) || isObject(value) ? value : null);
// use x as categories if custom x and categorized if ((isCategory || state.hasRadar) && index === 0 && !isUndefined(rawX)) { if (!hasCategory && index === 0 && i === 0 && !isDataAppend) { config.axis_x_categories = []; }
x = config.axis_x_categories.indexOf(rawX);
if (x === -1) { x = config.axis_x_categories.length; config.axis_x_categories.push(rawX); } } else { x = $$.generateTargetX(rawX, id, xIndex + i); }
// mark as x = undefined if value is undefined and filter to remove after mapped if (isUndefined(value) || $$.data.xs[id].length <= i) { x = undefined; }
return { x, value, id: convertedId, index: -1 }; }).filter(v => isDefined(v.x)) }; });
// finish targets targets.forEach(t => { // sort values by its x if (config.data_xSort) { t.values = t.values.sort((v1, v2) => { const x1 = v1.x || v1.x === 0 ? v1.x : Infinity; const x2 = v2.x || v2.x === 0 ? v2.x : Infinity;
return x1 - x2; }); }
// indexing each value t.values.forEach((v, i) => (v.index = i));
// this needs to be sorted because its index and value.index is identical $$.data.xs[t.id]?.sort((v1, v2) => v1 - v2); });
// cache information about values state.hasNegativeValue = $$.hasNegativeValueInTargets(targets); state.hasPositiveValue = $$.hasPositiveValueInTargets(targets);
// set target types if (config.data_type) { $$.setTargetType($$.mapToIds(targets) .filter(id => !(id in config.data_types)), config.data_type); }
// cache as original id keyed targets.forEach(d => $$.cache.add(d.id_org, d, true));
return targets as IData[]; }};
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