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60 lines
2.2 KiB
60 lines
2.2 KiB
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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var Diverging_1;
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import { identity } from '@antv/util';
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import { d3Ticks } from '../tick-methods/d3-ticks';
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import { compose, createInterpolateNumber, createNormalize, interpolatize } from '../utils';
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import { Linear } from './linear';
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function rangeOf(interpolator) {
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return [interpolator(0), interpolator(0.5), interpolator(1)];
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}
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const normalizeDomain = (domain) => {
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const [d0, d1, d2] = domain;
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// [d0, d1] => [0, 0.5]
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const normalizeLeft = compose(createInterpolateNumber(0, 0.5), createNormalize(d0, d1));
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// [d1, d2] => [0.5, 1]
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const normalizeRight = compose(createInterpolateNumber(0.5, 1), createNormalize(d1, d2));
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return (x) => {
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// Find x belongs to the range of [d0, d1] or [d1, d2].
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if (d0 > d2) {
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return x < d1 ? normalizeRight(x) : normalizeLeft(x);
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}
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else {
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return x < d1 ? normalizeLeft(x) : normalizeRight(x);
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}
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};
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};
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/**
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* Diverging 比例尺
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*
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* 构造可创建一个在输入和输出之间通过插值函数进行转换的比例尺
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*/
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let Diverging = Diverging_1 = class Diverging extends Linear {
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getDefaultOptions() {
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return {
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domain: [0, 0.5, 1],
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unknown: undefined,
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nice: false,
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clamp: false,
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round: false,
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interpolator: identity,
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tickMethod: d3Ticks,
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tickCount: 5,
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};
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}
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constructor(options) {
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super(options);
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}
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clone() {
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return new Diverging_1(this.options);
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}
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};
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Diverging = Diverging_1 = __decorate([
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interpolatize(rangeOf, normalizeDomain)
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], Diverging);
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export { Diverging };
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//# sourceMappingURL=diverging.js.map
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