46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
import { __extends } from "tslib";
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import { calBase } from '../util/math';
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import Continuous from './base';
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/**
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* Pow 度量，处理非均匀分布
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*/
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var Pow = /** @class */ (function (_super) {
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__extends(Pow, _super);
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function Pow() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.type = 'pow';
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return _this;
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}
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/**
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* @override
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*/
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Pow.prototype.invert = function (value) {
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var percent = this.getInvertPercent(value);
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var exponent = this.exponent;
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var max = calBase(exponent, this.max);
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var min = calBase(exponent, this.min);
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var tmp = percent * (max - min) + min;
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var factor = tmp >= 0 ? 1 : -1;
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return Math.pow(tmp, exponent) * factor;
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};
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Pow.prototype.initCfg = function () {
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this.tickMethod = 'pow';
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this.exponent = 2;
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this.tickCount = 5;
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this.nice = true;
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};
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// 获取度量计算时，value占的定义域百分比
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Pow.prototype.getScalePercent = function (value) {
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var max = this.max;
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var min = this.min;
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if (max === min) {
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return 0;
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}
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var exponent = this.exponent;
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var percent = (calBase(exponent, value) - calBase(exponent, min)) / (calBase(exponent, max) - calBase(exponent, min));
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return percent;
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};
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return Pow;
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}(Continuous));
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export default Pow;
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//# sourceMappingURL=pow.js.map
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