@antv/f2/lib/deps/f2-scale/src/category/base.js

Charts for mobile visualization.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _tslib = require("tslib");
var _util = require("@antv/util");
var _base = _interopRequireDefault(require("../base"));
/**
 * 分类度量
 * @class
 */
var Category = /** @class */function (_super) {
  (0, _tslib.__extends)(Category, _super);
  function Category() {
    var _this = _super !== null && _super.apply(this, arguments) || this;
    _this.type = 'cat';
    _this.isCategory = true;
    return _this;
  }
  Category.prototype.buildIndexMap = function () {
    if (!this.translateIndexMap) {
      this.translateIndexMap = new Map();
      // 重新构建缓存
      for (var i = 0; i < this.values.length; i++) {
        this.translateIndexMap.set(this.values[i], i);
      }
    }
  };
  Category.prototype.translate = function (value) {
    // 按需构建 map
    this.buildIndexMap();
    // 找得到
    var idx = this.translateIndexMap.get(value);
    if (idx === undefined) {
      idx = (0, _util.isNumber)(value) ? value : NaN;
    }
    return idx;
  };
  Category.prototype.scale = function (value) {
    var order = this.translate(value);
    // 分类数据允许 0.5 范围内调整
    // if (order < this.min - 0.5 || order > this.max + 0.5) {
    //   return NaN;
    // }
    var percent = this.calcPercent(order, this.min, this.max);
    return this.calcValue(percent, this.rangeMin(), this.rangeMax());
  };
  Category.prototype.invert = function (scaledValue) {
    var domainRange = this.max - this.min;
    var percent = this.calcPercent(scaledValue, this.rangeMin(), this.rangeMax());
    var idx = Math.round(domainRange * percent) + this.min;
    if (idx < this.min || idx > this.max) {
      return NaN;
    }
    return this.values[idx];
  };
  Category.prototype.getText = function (value) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
      args[_i - 1] = arguments[_i];
    }
    var v = value;
    // value为index
    if ((0, _util.isNumber)(value) && !this.values.includes(value)) {
      v = this.values[v];
    }
    return _super.prototype.getText.apply(this, (0, _tslib.__spreadArray)([v], args, false));
  };
  // 复写属性
  Category.prototype.initCfg = function () {
    this.tickMethod = 'cat';
  };
  // 设置 min, max
  Category.prototype.setDomain = function () {
    // 用户有可能设置 min
    if ((0, _util.isNil)(this.getConfig('min'))) {
      this.min = 0;
    }
    if ((0, _util.isNil)(this.getConfig('max'))) {
      var size = this.values.length;
      this.max = size > 1 ? size - 1 : size;
    }
    // scale.init 的时候清除缓存
    if (this.translateIndexMap) {
      this.translateIndexMap = undefined;
    }
  };
  return Category;
}(_base.default);
var _default = exports.default = Category;