@mui/x-charts/legacy/hooks/useTicks.js

The community edition of the charts components (MUI X).

import _typeof from "@babel/runtime/helpers/esm/typeof";
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
import * as React from 'react';
import { isBandScale } from '../internals/isBandScale';
export function getTickNumber(params) {
  var tickMaxStep = params.tickMaxStep,
    tickMinStep = params.tickMinStep,
    tickNumber = params.tickNumber,
    range = params.range,
    domain = params.domain;
  var maxTicks = tickMinStep === undefined ? 999 : Math.floor(Math.abs(domain[1] - domain[0]) / tickMinStep);
  var minTicks = tickMaxStep === undefined ? 2 : Math.ceil(Math.abs(domain[1] - domain[0]) / tickMaxStep);
  var defaultizedTickNumber = tickNumber != null ? tickNumber : Math.floor(Math.abs(range[1] - range[0]) / 50);
  return Math.min(maxTicks, Math.max(minTicks, defaultizedTickNumber));
}
function useTicks(options) {
  var scale = options.scale,
    tickNumber = options.tickNumber,
    valueFormatter = options.valueFormatter,
    tickInterval = options.tickInterval;
  return React.useMemo(function () {
    // band scale
    if (isBandScale(scale)) {
      var domain = scale.domain();
      if (scale.bandwidth() > 0) {
        // scale type = 'band'
        return [].concat(_toConsumableArray(domain.map(function (value) {
          var _valueFormatter;
          return {
            value: value,
            formattedValue: (_valueFormatter = valueFormatter == null ? void 0 : valueFormatter(value)) != null ? _valueFormatter : "".concat(value),
            offset: scale(value) - (scale.step() - scale.bandwidth()) / 2,
            labelOffset: scale.step() / 2
          };
        })), [{
          formattedValue: undefined,
          offset: scale.range()[1],
          labelOffset: 0
        }]);
      }

      // scale type = 'point'
      var filteredDomain = typeof tickInterval === 'function' && domain.filter(tickInterval) || _typeof(tickInterval) === 'object' && tickInterval || domain;
      return filteredDomain.map(function (value) {
        var _valueFormatter2;
        return {
          value: value,
          formattedValue: (_valueFormatter2 = valueFormatter == null ? void 0 : valueFormatter(value)) != null ? _valueFormatter2 : "".concat(value),
          offset: scale(value),
          labelOffset: 0
        };
      });
    }
    var ticks = _typeof(tickInterval) === 'object' ? tickInterval : scale.ticks(tickNumber);
    return ticks.map(function (value) {
      var _valueFormatter3;
      return {
        value: value,
        formattedValue: (_valueFormatter3 = valueFormatter == null ? void 0 : valueFormatter(value)) != null ? _valueFormatter3 : scale.tickFormat(tickNumber)(value),
        offset: scale(value),
        labelOffset: 0
      };
    });
  }, [tickNumber, scale, valueFormatter, tickInterval]);
}
export default useTicks;