@awsui/components-react/internal/components/mixed-chart/scales.js

AWS UI is a collection of [React](https://reactjs.org/) components that help create intuitive, responsive, and accessible user experiences for web applications. It is developed by Amazon Web Services (AWS). This work is available under the terms of the [A

import { scaleLinear, scaleLog, scaleTime, scaleBand, scalePow } from 'd3-scale';
function isNumericDomain(domain) {
    return domain.length > 0 && typeof domain[0] === 'number';
}
function isDateDomain(domain) {
    return domain.length > 0 && domain[0] instanceof Date;
}
function isStringDomain(domain) {
    return domain.length > 0 && typeof domain[0] === 'string';
}
function createNumericScale(type, domain) {
    var scale;
    switch (type) {
        case 'log':
            scale = scaleLog();
            break;
        case 'pow':
            scale = scalePow();
            break;
        default:
            scale = scaleLinear();
    }
    if (isNumericDomain(domain)) {
        scale.domain(domain);
    }
    return scale;
}
function createTimeScale(domain) {
    var scale = scaleTime();
    if (isDateDomain(domain)) {
        scale.domain(domain);
    }
    return scale;
}
function createBandScale(domain) {
    var scale = scaleBand().padding(0.1);
    if (isStringDomain(domain)) {
        scale.domain(domain);
    }
    return scale;
}
export function createScale(type, domain, range) {
    switch (type) {
        case 'linear':
        case 'log':
        case 'pow':
            return { type: 'numeric', scale: createNumericScale(type, domain).range(range) };
        case 'time':
            return { type: 'time', scale: createTimeScale(domain).range(range) };
        case 'categorical':
            return { type: 'categorical', scale: createBandScale(domain).range(range) };
    }
}
var ChartScale = (function () {
    function ChartScale(scaleType, domain, range) {
        this.scaleType = scaleType;
        this.domain = domain;
        this.range = range;
        this.scale = createScale(this.scaleType, this.domain, this.range);
        this.d3Scale = this.scale.scale;
    }
    ChartScale.prototype.cloneScale = function (newScaleType) {
        return new ChartScale(newScaleType || this.scaleType, this.domain, this.range);
    };
    ChartScale.prototype.isNumeric = function () {
        return this.scale.type === 'numeric';
    };
    ChartScale.prototype.isTime = function () {
        return this.scale.type === 'time';
    };
    ChartScale.prototype.isCategorical = function () {
        return this.scale.type === 'categorical';
    };
    ChartScale.prototype.numericD3Scale = function () {
        if (this.scale.type === 'numeric') {
            return this.scale.scale;
        }
        return null;
    };
    ChartScale.prototype.timeD3Scale = function () {
        if (this.scale.type === 'time') {
            return this.scale.scale;
        }
        return null;
    };
    ChartScale.prototype.categoricalD3Scale = function () {
        if (this.scale.type === 'categorical') {
            return this.scale.scale;
        }
        return null;
    };
    return ChartScale;
}());
export { ChartScale };