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Co-Authored-By: 狸花猫/Claude-Qwen3.6-Plus 🐾
121 lines
3.8 KiB
JavaScript
121 lines
3.8 KiB
JavaScript
import { assign, isEmpty, isFunction, isNil, isNumber, isObject, isString, map } from '@antv/util';
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import { getTickMethod } from './tick-method/register';
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var Scale = /** @class */ (function () {
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function Scale(cfg) {
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/**
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* 度量的类型
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*/
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this.type = 'base';
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/**
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* 是否分类类型的度量
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*/
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this.isCategory = false;
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/**
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* 是否线性度量，有linear, time 度量
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*/
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this.isLinear = false;
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/**
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* 是否连续类型的度量，linear,time,log, pow, quantile, quantize 都支持
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*/
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this.isContinuous = false;
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/**
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* 是否是常量的度量，传入和传出一致
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*/
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this.isIdentity = false;
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this.values = [];
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this.range = [0, 1];
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this.ticks = [];
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this.__cfg__ = cfg;
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this.initCfg();
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this.init();
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}
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// 对于原始值的必要转换，如分类、时间字段需转换成数值，用transform/map命名可能更好
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Scale.prototype.translate = function (v) {
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return v;
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};
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/** 重新初始化 */
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Scale.prototype.change = function (cfg) {
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// 覆盖配置项，而不替代
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assign(this.__cfg__, cfg);
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this.init();
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};
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Scale.prototype.clone = function () {
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return this.constructor(this.__cfg__);
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};
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/** 获取坐标轴需要的ticks */
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Scale.prototype.getTicks = function () {
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var _this = this;
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return map(this.ticks, function (tick, idx) {
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if (isObject(tick)) {
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// 仅当符合Tick类型时才有意义
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return tick;
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}
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return {
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text: _this.getText(tick, idx),
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tickValue: tick,
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value: _this.scale(tick),
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};
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});
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};
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/** 获取Tick的格式化结果 */
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Scale.prototype.getText = function (value, key) {
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var formatter = this.formatter;
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var res = formatter ? formatter(value, key) : value;
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if (isNil(res) || !isFunction(res.toString)) {
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return '';
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}
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return res.toString();
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};
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// 获取配置项中的值，当前 scale 上的值可能会被修改
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Scale.prototype.getConfig = function (key) {
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return this.__cfg__[key];
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};
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// scale初始化
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Scale.prototype.init = function () {
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assign(this, this.__cfg__);
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this.setDomain();
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if (isEmpty(this.getConfig('ticks'))) {
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this.ticks = this.calculateTicks();
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}
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};
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// 子类上覆盖某些属性，不能直接在类上声明，否则会被覆盖
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Scale.prototype.initCfg = function () { };
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Scale.prototype.setDomain = function () { };
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Scale.prototype.calculateTicks = function () {
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var tickMethod = this.tickMethod;
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var ticks = [];
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if (isString(tickMethod)) {
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var method = getTickMethod(tickMethod);
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if (!method) {
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throw new Error('There is no method to to calculate ticks!');
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}
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ticks = method(this);
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}
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else if (isFunction(tickMethod)) {
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ticks = tickMethod(this);
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}
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return ticks;
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};
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// range 的最小值
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Scale.prototype.rangeMin = function () {
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return this.range[0];
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};
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// range 的最大值
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Scale.prototype.rangeMax = function () {
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return this.range[1];
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};
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/** 定义域转 0~1 */
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Scale.prototype.calcPercent = function (value, min, max) {
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if (isNumber(value)) {
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return (value - min) / (max - min);
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}
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return NaN;
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};
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/** 0~1转定义域 */
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Scale.prototype.calcValue = function (percent, min, max) {
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return min + percent * (max - min);
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};
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return Scale;
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}());
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export default Scale;
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//# sourceMappingURL=base.js.map
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