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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { getPrecision, round, nice, quantityExponent } from '../util/number.js';
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export function isValueNice(val) {
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var exp10 = Math.pow(10, quantityExponent(Math.abs(val)));
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var f = Math.abs(val / exp10);
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return f === 0 || f === 1 || f === 2 || f === 3 || f === 5;
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}
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export function isIntervalOrLogScale(scale) {
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return scale.type === 'interval' || scale.type === 'log';
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}
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/**
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* @param extent Both extent[0] and extent[1] should be valid number.
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* Should be extent[0] < extent[1].
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* @param splitNumber splitNumber should be >= 1.
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*/
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export function intervalScaleNiceTicks(extent, splitNumber, minInterval, maxInterval) {
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var result = {};
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var span = extent[1] - extent[0];
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var interval = result.interval = nice(span / splitNumber, true);
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if (minInterval != null && interval < minInterval) {
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interval = result.interval = minInterval;
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}
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if (maxInterval != null && interval > maxInterval) {
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interval = result.interval = maxInterval;
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}
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// Tow more digital for tick.
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var precision = result.intervalPrecision = getIntervalPrecision(interval);
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// Niced extent inside original extent
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var niceTickExtent = result.niceTickExtent = [round(Math.ceil(extent[0] / interval) * interval, precision), round(Math.floor(extent[1] / interval) * interval, precision)];
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fixExtent(niceTickExtent, extent);
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return result;
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}
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export function increaseInterval(interval) {
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var exp10 = Math.pow(10, quantityExponent(interval));
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// Increase interval
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var f = interval / exp10;
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if (!f) {
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f = 1;
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} else if (f === 2) {
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f = 3;
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} else if (f === 3) {
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f = 5;
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} else {
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// f is 1 or 5
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f *= 2;
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}
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return round(f * exp10);
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}
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/**
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* @return interval precision
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*/
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export function getIntervalPrecision(interval) {
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// Tow more digital for tick.
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return getPrecision(interval) + 2;
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}
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function clamp(niceTickExtent, idx, extent) {
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niceTickExtent[idx] = Math.max(Math.min(niceTickExtent[idx], extent[1]), extent[0]);
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}
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// In some cases (e.g., splitNumber is 1), niceTickExtent may be out of extent.
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export function fixExtent(niceTickExtent, extent) {
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!isFinite(niceTickExtent[0]) && (niceTickExtent[0] = extent[0]);
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!isFinite(niceTickExtent[1]) && (niceTickExtent[1] = extent[1]);
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clamp(niceTickExtent, 0, extent);
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clamp(niceTickExtent, 1, extent);
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if (niceTickExtent[0] > niceTickExtent[1]) {
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niceTickExtent[0] = niceTickExtent[1];
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}
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}
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export function contain(val, extent) {
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return val >= extent[0] && val <= extent[1];
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}
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export function normalize(val, extent) {
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if (extent[1] === extent[0]) {
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return 0.5;
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}
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return (val - extent[0]) / (extent[1] - extent[0]);
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}
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export function scale(val, extent) {
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return val * (extent[1] - extent[0]) + extent[0];
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}
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