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