| 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.default = quantize;
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| 7 | var _index = require("../../../lib-vendor/d3-array/src/index.js");
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| 8 | var _linear = require("./linear.js");
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| 9 | var _init = require("./init.js");
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| 10 | function quantize() {
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| 11 | var x0 = 0,
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| 12 | x1 = 1,
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| 13 | n = 1,
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| 14 | domain = [0.5],
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| 15 | range = [0, 1],
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| 16 | unknown;
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| 17 | function scale(x) {
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| 18 | return x != null && x <= x ? range[(0, _index.bisect)(domain, x, 0, n)] : unknown;
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| 19 | }
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| 20 | function rescale() {
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| 21 | var i = -1;
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| 22 | domain = new Array(n);
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| 23 | while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);
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| 24 | return scale;
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| 25 | }
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| 26 | scale.domain = function (_) {
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| 27 | return arguments.length ? ([x0, x1] = _, x0 = +x0, x1 = +x1, rescale()) : [x0, x1];
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| 28 | };
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| 29 | scale.range = function (_) {
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| 30 | return arguments.length ? (n = (range = Array.from(_)).length - 1, rescale()) : range.slice();
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| 31 | };
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| 32 | scale.invertExtent = function (y) {
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| 33 | var i = range.indexOf(y);
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| 34 | return i < 0 ? [NaN, NaN] : i < 1 ? [x0, domain[0]] : i >= n ? [domain[n - 1], x1] : [domain[i - 1], domain[i]];
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| 35 | };
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| 36 | scale.unknown = function (_) {
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| 37 | return arguments.length ? (unknown = _, scale) : scale;
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| 38 | };
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| 39 | scale.thresholds = function () {
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| 40 | return domain.slice();
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| 41 | };
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| 42 | scale.copy = function () {
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| 43 | return quantize().domain([x0, x1]).range(range).unknown(unknown);
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| 44 | };
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| 45 | return _init.initRange.apply((0, _linear.linearish)(scale), arguments);
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| 46 | } |
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