@bokeh/bokehjs/build/js/lib/models/transforms/range_transform.js

Interactive, novel data visualization

import { Transform } from "./transform";
import { Range } from "../ranges/range";
import { FactorRange } from "../ranges/factor_range";
import { infer_type } from "../../core/types";
import { isNumber, isArrayableOf } from "../../core/util/types";
import { unreachable } from "../../core/util/assert";
export class RangeTransform extends Transform {
    static __name__ = "RangeTransform";
    constructor(attrs) {
        super(attrs);
    }
    static {
        this.define(({ Ref, Nullable }) => ({
            range: [Nullable(Ref(Range)), null],
        }));
    }
    v_compute(xs0) {
        let xs;
        if (this.range instanceof FactorRange) {
            xs = this.range.v_synthetic(xs0);
        }
        else if (isArrayableOf(xs0, isNumber)) {
            xs = xs0;
        }
        else {
            unreachable();
        }
        const result = new (infer_type(xs))(xs.length);
        for (let i = 0; i < xs.length; i++) {
            const x = xs[i];
            result[i] = this._compute(x);
        }
        return result;
    }
    compute(x) {
        if (this.range instanceof FactorRange) {
            return this._compute(this.range.synthetic(x));
        }
        else if (isNumber(x)) {
            return this._compute(x);
        }
        else {
            unreachable();
        }
    }
}
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