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- import * as zrUtil from 'zrender/lib/core/util.js';
- import OrdinalScale from '../scale/Ordinal.js';
- import IntervalScale from '../scale/Interval.js';
- import Scale from '../scale/Scale.js';
- import { prepareLayoutBarSeries, makeColumnLayout, retrieveColumnLayout } from '../layout/barGrid.js';
- import BoundingRect from 'zrender/lib/core/BoundingRect.js';
- import TimeScale from '../scale/Time.js';
- import LogScale from '../scale/Log.js';
- import { getStackedDimension } from '../data/helper/dataStackHelper.js';
- import { ensureScaleRawExtentInfo } from './scaleRawExtentInfo.js';
- export function getScaleExtent(scale, model) {
- var scaleType = scale.type;
- var rawExtentResult = ensureScaleRawExtentInfo(scale, model, scale.getExtent()).calculate();
- scale.setBlank(rawExtentResult.isBlank);
- var min = rawExtentResult.min;
- var max = rawExtentResult.max;
-
-
-
-
-
-
-
-
-
- var ecModel = model.ecModel;
- if (ecModel && scaleType === 'time' ) {
- var barSeriesModels = prepareLayoutBarSeries('bar', ecModel);
- var isBaseAxisAndHasBarSeries_1 = false;
- zrUtil.each(barSeriesModels, function (seriesModel) {
- isBaseAxisAndHasBarSeries_1 = isBaseAxisAndHasBarSeries_1 || seriesModel.getBaseAxis() === model.axis;
- });
- if (isBaseAxisAndHasBarSeries_1) {
-
-
- var barWidthAndOffset = makeColumnLayout(barSeriesModels);
-
- var adjustedScale = adjustScaleForOverflow(min, max, model, barWidthAndOffset);
- min = adjustedScale.min;
- max = adjustedScale.max;
- }
- }
- return {
- extent: [min, max],
-
-
- fixMin: rawExtentResult.minFixed,
- fixMax: rawExtentResult.maxFixed
- };
- }
- function adjustScaleForOverflow(min, max, model,
- // Only support cartesian coord yet.
- barWidthAndOffset) {
-
- var axisExtent = model.axis.getExtent();
- var axisLength = axisExtent[1] - axisExtent[0];
-
- var barsOnCurrentAxis = retrieveColumnLayout(barWidthAndOffset, model.axis);
- if (barsOnCurrentAxis === undefined) {
- return {
- min: min,
- max: max
- };
- }
- var minOverflow = Infinity;
- zrUtil.each(barsOnCurrentAxis, function (item) {
- minOverflow = Math.min(item.offset, minOverflow);
- });
- var maxOverflow = -Infinity;
- zrUtil.each(barsOnCurrentAxis, function (item) {
- maxOverflow = Math.max(item.offset + item.width, maxOverflow);
- });
- minOverflow = Math.abs(minOverflow);
- maxOverflow = Math.abs(maxOverflow);
- var totalOverFlow = minOverflow + maxOverflow;
-
- var oldRange = max - min;
- var oldRangePercentOfNew = 1 - (minOverflow + maxOverflow) / axisLength;
- var overflowBuffer = oldRange / oldRangePercentOfNew - oldRange;
- max += overflowBuffer * (maxOverflow / totalOverFlow);
- min -= overflowBuffer * (minOverflow / totalOverFlow);
- return {
- min: min,
- max: max
- };
- }
- export function niceScaleExtent(scale, inModel) {
- var model = inModel;
- var extentInfo = getScaleExtent(scale, model);
- var extent = extentInfo.extent;
- var splitNumber = model.get('splitNumber');
- if (scale instanceof LogScale) {
- scale.base = model.get('logBase');
- }
- var scaleType = scale.type;
- var interval = model.get('interval');
- var isIntervalOrTime = scaleType === 'interval' || scaleType === 'time';
- scale.setExtent(extent[0], extent[1]);
- scale.calcNiceExtent({
- splitNumber: splitNumber,
- fixMin: extentInfo.fixMin,
- fixMax: extentInfo.fixMax,
- minInterval: isIntervalOrTime ? model.get('minInterval') : null,
- maxInterval: isIntervalOrTime ? model.get('maxInterval') : null
- });
-
-
-
-
-
- if (interval != null) {
- scale.setInterval && scale.setInterval(interval);
- }
- }
- export function createScaleByModel(model, axisType) {
- axisType = axisType || model.get('type');
- if (axisType) {
- switch (axisType) {
-
- case 'category':
- return new OrdinalScale({
- ordinalMeta: model.getOrdinalMeta ? model.getOrdinalMeta() : model.getCategories(),
- extent: [Infinity, -Infinity]
- });
- case 'time':
- return new TimeScale({
- locale: model.ecModel.getLocaleModel(),
- useUTC: model.ecModel.get('useUTC')
- });
- default:
-
- return new (Scale.getClass(axisType) || IntervalScale)();
- }
- }
- }
- export function ifAxisCrossZero(axis) {
- var dataExtent = axis.scale.getExtent();
- var min = dataExtent[0];
- var max = dataExtent[1];
- return !(min > 0 && max > 0 || min < 0 && max < 0);
- }
- export function makeLabelFormatter(axis) {
- var labelFormatter = axis.getLabelModel().get('formatter');
- var categoryTickStart = axis.type === 'category' ? axis.scale.getExtent()[0] : null;
- if (axis.scale.type === 'time') {
- return function (tpl) {
- return function (tick, idx) {
- return axis.scale.getFormattedLabel(tick, idx, tpl);
- };
- }(labelFormatter);
- } else if (zrUtil.isString(labelFormatter)) {
- return function (tpl) {
- return function (tick) {
-
-
- var label = axis.scale.getLabel(tick);
- var text = tpl.replace('{value}', label != null ? label : '');
- return text;
- };
- }(labelFormatter);
- } else if (zrUtil.isFunction(labelFormatter)) {
- return function (cb) {
- return function (tick, idx) {
-
-
-
-
-
-
- if (categoryTickStart != null) {
- idx = tick.value - categoryTickStart;
- }
- return cb(getAxisRawValue(axis, tick), idx, tick.level != null ? {
- level: tick.level
- } : null);
- };
- }(labelFormatter);
- } else {
- return function (tick) {
- return axis.scale.getLabel(tick);
- };
- }
- }
- export function getAxisRawValue(axis, tick) {
-
-
-
- return axis.type === 'category' ? axis.scale.getLabel(tick) : tick.value;
- }
- export function estimateLabelUnionRect(axis) {
- var axisModel = axis.model;
- var scale = axis.scale;
- if (!axisModel.get(['axisLabel', 'show']) || scale.isBlank()) {
- return;
- }
- var realNumberScaleTicks;
- var tickCount;
- var categoryScaleExtent = scale.getExtent();
-
- if (scale instanceof OrdinalScale) {
- tickCount = scale.count();
- } else {
- realNumberScaleTicks = scale.getTicks();
- tickCount = realNumberScaleTicks.length;
- }
- var axisLabelModel = axis.getLabelModel();
- var labelFormatter = makeLabelFormatter(axis);
- var rect;
- var step = 1;
-
- if (tickCount > 40) {
- step = Math.ceil(tickCount / 40);
- }
- for (var i = 0; i < tickCount; i += step) {
- var tick = realNumberScaleTicks ? realNumberScaleTicks[i] : {
- value: categoryScaleExtent[0] + i
- };
- var label = labelFormatter(tick, i);
- var unrotatedSingleRect = axisLabelModel.getTextRect(label);
- var singleRect = rotateTextRect(unrotatedSingleRect, axisLabelModel.get('rotate') || 0);
- rect ? rect.union(singleRect) : rect = singleRect;
- }
- return rect;
- }
- function rotateTextRect(textRect, rotate) {
- var rotateRadians = rotate * Math.PI / 180;
- var beforeWidth = textRect.width;
- var beforeHeight = textRect.height;
- var afterWidth = beforeWidth * Math.abs(Math.cos(rotateRadians)) + Math.abs(beforeHeight * Math.sin(rotateRadians));
- var afterHeight = beforeWidth * Math.abs(Math.sin(rotateRadians)) + Math.abs(beforeHeight * Math.cos(rotateRadians));
- var rotatedRect = new BoundingRect(textRect.x, textRect.y, afterWidth, afterHeight);
- return rotatedRect;
- }
- export function getOptionCategoryInterval(model) {
- var interval = model.get('interval');
- return interval == null ? 'auto' : interval;
- }
- export function shouldShowAllLabels(axis) {
- return axis.type === 'category' && getOptionCategoryInterval(axis.getLabelModel()) === 0;
- }
- export function getDataDimensionsOnAxis(data, axisDim) {
-
- var dataDimMap = {};
-
-
-
- zrUtil.each(data.mapDimensionsAll(axisDim), function (dataDim) {
-
-
-
-
-
-
- dataDimMap[getStackedDimension(data, dataDim)] = true;
- });
- return zrUtil.keys(dataDimMap);
- }
- export function unionAxisExtentFromData(dataExtent, data, axisDim) {
- if (data) {
- zrUtil.each(getDataDimensionsOnAxis(data, axisDim), function (dim) {
- var seriesExtent = data.getApproximateExtent(dim);
- seriesExtent[0] < dataExtent[0] && (dataExtent[0] = seriesExtent[0]);
- seriesExtent[1] > dataExtent[1] && (dataExtent[1] = seriesExtent[1]);
- });
- }
- }
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