@mui/x-charts
Version:
The community edition of the Charts components (MUI X).
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JavaScript
import _extends from "@babel/runtime/helpers/esm/extends";
import { scaleBand, scalePoint, scaleTime } from '@mui/x-charts-vendor/d3-scale';
import { isBandScaleConfig, isPointScaleConfig } from '../../models/axis';
import { getColorScale, getOrdinalColorScale } from '../../internals/colorScale';
import { getTickNumber } from '../../hooks/useTicks';
import { getScale } from '../../internals/getScale';
import { zoomScaleRange } from './zoom';
import { getAxisExtremum } from './getAxisExtremum';
const getRange = (drawingArea, axisDirection, isReverse) => {
const range = axisDirection === 'x' ? [drawingArea.left, drawingArea.left + drawingArea.width] : [drawingArea.top + drawingArea.height, drawingArea.top];
return isReverse ? range.reverse() : range;
};
const isDateData = data => data?.[0] instanceof Date;
function createDateFormatter(axis, range) {
const timeScale = scaleTime(axis.data, range);
return (v, {
location
}) => location === 'tick' ? timeScale.tickFormat(axis.tickNumber)(v) : `${v.toLocaleString()}`;
}
const DEFAULT_CATEGORY_GAP_RATIO = 0.2;
const DEFAULT_BAR_GAP_RATIO = 0.1;
export function computeValue({
drawingArea,
formattedSeries,
axis: allAxis,
extremumGetters,
axisDirection,
zoomData,
zoomOptions,
getFilters
}) {
const completeAxis = {};
allAxis.forEach((eachAxis, axisIndex) => {
const axis = eachAxis;
const isDefaultAxis = axisIndex === 0;
const zoomOption = zoomOptions?.[axis.id];
const zoom = zoomData?.find(({
axisId
}) => axisId === axis.id);
const zoomRange = zoom ? [zoom.start, zoom.end] : [0, 100];
const range = getRange(drawingArea, axisDirection, axis.reverse);
const [minData, maxData] = getAxisExtremum(axis, extremumGetters, isDefaultAxis, formattedSeries, zoom === undefined && !zoomOption ? getFilters : undefined // Do not apply filtering if zoom is already defined.
);
const data = axis.data ?? [];
if (isBandScaleConfig(axis)) {
const categoryGapRatio = axis.categoryGapRatio ?? DEFAULT_CATEGORY_GAP_RATIO;
const barGapRatio = axis.barGapRatio ?? DEFAULT_BAR_GAP_RATIO;
// Reverse range because ordinal scales are presented from top to bottom on y-axis
const scaleRange = axisDirection === 'x' ? range : [range[1], range[0]];
const zoomedRange = zoomScaleRange(scaleRange, zoomRange);
completeAxis[axis.id] = _extends({
categoryGapRatio,
barGapRatio
}, axis, {
data,
scale: scaleBand(axis.data, zoomedRange).paddingInner(categoryGapRatio).paddingOuter(categoryGapRatio / 2),
tickNumber: axis.data.length,
colorScale: axis.colorMap && (axis.colorMap.type === 'ordinal' ? getOrdinalColorScale(_extends({
values: axis.data
}, axis.colorMap)) : getColorScale(axis.colorMap))
});
if (isDateData(axis.data)) {
const dateFormatter = createDateFormatter(axis, scaleRange);
completeAxis[axis.id].valueFormatter = axis.valueFormatter ?? dateFormatter;
}
}
if (isPointScaleConfig(axis)) {
const scaleRange = axisDirection === 'x' ? range : [...range].reverse();
const zoomedRange = zoomScaleRange(scaleRange, zoomRange);
completeAxis[axis.id] = _extends({}, axis, {
data,
scale: scalePoint(axis.data, zoomedRange),
tickNumber: axis.data.length,
colorScale: axis.colorMap && (axis.colorMap.type === 'ordinal' ? getOrdinalColorScale(_extends({
values: axis.data
}, axis.colorMap)) : getColorScale(axis.colorMap))
});
if (isDateData(axis.data)) {
const dateFormatter = createDateFormatter(axis, scaleRange);
completeAxis[axis.id].valueFormatter = axis.valueFormatter ?? dateFormatter;
}
}
if (axis.scaleType === 'band' || axis.scaleType === 'point') {
// Could be merged with the two previous "if conditions" but then TS does not get that `axis.scaleType` can't be `band` or `point`.
return;
}
const scaleType = axis.scaleType ?? 'linear';
const axisExtremums = [axis.min ?? minData, axis.max ?? maxData];
const rawTickNumber = getTickNumber(_extends({}, axis, {
range,
domain: axisExtremums
}));
const tickNumber = rawTickNumber / ((zoomRange[1] - zoomRange[0]) / 100);
const zoomedRange = zoomScaleRange(range, zoomRange);
// TODO: move nice to prop? Disable when there is zoom?
const scale = getScale(scaleType, axisExtremums, zoomedRange).nice(rawTickNumber);
const [minDomain, maxDomain] = scale.domain();
const domain = [axis.min ?? minDomain, axis.max ?? maxDomain];
completeAxis[axis.id] = _extends({}, axis, {
data,
scaleType: scaleType,
scale: scale.domain(domain),
tickNumber,
colorScale: axis.colorMap && getColorScale(axis.colorMap)
});
});
return {
axis: completeAxis,
axisIds: allAxis.map(({
id
}) => id)
};
}