project/node_modules/echarts/lib/component/dataZoom/AxisProxy.js

342 lines
15 KiB
JavaScript

/*
* 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 * as zrUtil from 'zrender/lib/core/util.js';
import * as numberUtil from '../../util/number.js';
import sliderMove from '../helper/sliderMove.js';
import { unionAxisExtentFromData } from '../../coord/axisHelper.js';
import { ensureScaleRawExtentInfo } from '../../coord/scaleRawExtentInfo.js';
import { getAxisMainType, isCoordSupported } from './helper.js';
import { SINGLE_REFERRING } from '../../util/model.js';
var each = zrUtil.each;
var asc = numberUtil.asc;
/**
* Operate single axis.
* One axis can only operated by one axis operator.
* Different dataZoomModels may be defined to operate the same axis.
* (i.e. 'inside' data zoom and 'slider' data zoom components)
* So dataZoomModels share one axisProxy in that case.
*/
var AxisProxy = /** @class */function () {
function AxisProxy(dimName, axisIndex, dataZoomModel, ecModel) {
this._dimName = dimName;
this._axisIndex = axisIndex;
this.ecModel = ecModel;
this._dataZoomModel = dataZoomModel;
// /**
// * @readOnly
// * @private
// */
// this.hasSeriesStacked;
}
/**
* Whether the axisProxy is hosted by dataZoomModel.
*/
AxisProxy.prototype.hostedBy = function (dataZoomModel) {
return this._dataZoomModel === dataZoomModel;
};
/**
* @return Value can only be NaN or finite value.
*/
AxisProxy.prototype.getDataValueWindow = function () {
return this._valueWindow.slice();
};
/**
* @return {Array.<number>}
*/
AxisProxy.prototype.getDataPercentWindow = function () {
return this._percentWindow.slice();
};
AxisProxy.prototype.getTargetSeriesModels = function () {
var seriesModels = [];
this.ecModel.eachSeries(function (seriesModel) {
if (isCoordSupported(seriesModel)) {
var axisMainType = getAxisMainType(this._dimName);
var axisModel = seriesModel.getReferringComponents(axisMainType, SINGLE_REFERRING).models[0];
if (axisModel && this._axisIndex === axisModel.componentIndex) {
seriesModels.push(seriesModel);
}
}
}, this);
return seriesModels;
};
AxisProxy.prototype.getAxisModel = function () {
return this.ecModel.getComponent(this._dimName + 'Axis', this._axisIndex);
};
AxisProxy.prototype.getMinMaxSpan = function () {
return zrUtil.clone(this._minMaxSpan);
};
/**
* Only calculate by given range and this._dataExtent, do not change anything.
*/
AxisProxy.prototype.calculateDataWindow = function (opt) {
var dataExtent = this._dataExtent;
var axisModel = this.getAxisModel();
var scale = axisModel.axis.scale;
var rangePropMode = this._dataZoomModel.getRangePropMode();
var percentExtent = [0, 100];
var percentWindow = [];
var valueWindow = [];
var hasPropModeValue;
each(['start', 'end'], function (prop, idx) {
var boundPercent = opt[prop];
var boundValue = opt[prop + 'Value'];
// Notice: dataZoom is based either on `percentProp` ('start', 'end') or
// on `valueProp` ('startValue', 'endValue'). (They are based on the data extent
// but not min/max of axis, which will be calculated by data window then).
// The former one is suitable for cases that a dataZoom component controls multiple
// axes with different unit or extent, and the latter one is suitable for accurate
// zoom by pixel (e.g., in dataZoomSelect).
// we use `getRangePropMode()` to mark which prop is used. `rangePropMode` is updated
// only when setOption or dispatchAction, otherwise it remains its original value.
// (Why not only record `percentProp` and always map to `valueProp`? Because
// the map `valueProp` -> `percentProp` -> `valueProp` probably not the original
// `valueProp`. consider two axes constrolled by one dataZoom. They have different
// data extent. All of values that are overflow the `dataExtent` will be calculated
// to percent '100%').
if (rangePropMode[idx] === 'percent') {
boundPercent == null && (boundPercent = percentExtent[idx]);
// Use scale.parse to math round for category or time axis.
boundValue = scale.parse(numberUtil.linearMap(boundPercent, percentExtent, dataExtent));
} else {
hasPropModeValue = true;
boundValue = boundValue == null ? dataExtent[idx] : scale.parse(boundValue);
// Calculating `percent` from `value` may be not accurate, because
// This calculation can not be inversed, because all of values that
// are overflow the `dataExtent` will be calculated to percent '100%'
boundPercent = numberUtil.linearMap(boundValue, dataExtent, percentExtent);
}
// valueWindow[idx] = round(boundValue);
// percentWindow[idx] = round(boundPercent);
// fallback to extent start/end when parsed value or percent is invalid
valueWindow[idx] = boundValue == null || isNaN(boundValue) ? dataExtent[idx] : boundValue;
percentWindow[idx] = boundPercent == null || isNaN(boundPercent) ? percentExtent[idx] : boundPercent;
});
asc(valueWindow);
asc(percentWindow);
// The windows from user calling of `dispatchAction` might be out of the extent,
// or do not obey the `min/maxSpan`, `min/maxValueSpan`. But we don't restrict window
// by `zoomLock` here, because we see `zoomLock` just as a interaction constraint,
// where API is able to initialize/modify the window size even though `zoomLock`
// specified.
var spans = this._minMaxSpan;
hasPropModeValue ? restrictSet(valueWindow, percentWindow, dataExtent, percentExtent, false) : restrictSet(percentWindow, valueWindow, percentExtent, dataExtent, true);
function restrictSet(fromWindow, toWindow, fromExtent, toExtent, toValue) {
var suffix = toValue ? 'Span' : 'ValueSpan';
sliderMove(0, fromWindow, fromExtent, 'all', spans['min' + suffix], spans['max' + suffix]);
for (var i = 0; i < 2; i++) {
toWindow[i] = numberUtil.linearMap(fromWindow[i], fromExtent, toExtent, true);
toValue && (toWindow[i] = scale.parse(toWindow[i]));
}
}
return {
valueWindow: valueWindow,
percentWindow: percentWindow
};
};
/**
* Notice: reset should not be called before series.restoreData() is called,
* so it is recommended to be called in "process stage" but not "model init
* stage".
*/
AxisProxy.prototype.reset = function (dataZoomModel) {
if (dataZoomModel !== this._dataZoomModel) {
return;
}
var targetSeries = this.getTargetSeriesModels();
// Culculate data window and data extent, and record them.
this._dataExtent = calculateDataExtent(this, this._dimName, targetSeries);
// `calculateDataWindow` uses min/maxSpan.
this._updateMinMaxSpan();
var dataWindow = this.calculateDataWindow(dataZoomModel.settledOption);
this._valueWindow = dataWindow.valueWindow;
this._percentWindow = dataWindow.percentWindow;
// Update axis setting then.
this._setAxisModel();
};
AxisProxy.prototype.filterData = function (dataZoomModel, api) {
if (dataZoomModel !== this._dataZoomModel) {
return;
}
var axisDim = this._dimName;
var seriesModels = this.getTargetSeriesModels();
var filterMode = dataZoomModel.get('filterMode');
var valueWindow = this._valueWindow;
if (filterMode === 'none') {
return;
}
// FIXME
// Toolbox may has dataZoom injected. And if there are stacked bar chart
// with NaN data, NaN will be filtered and stack will be wrong.
// So we need to force the mode to be set empty.
// In fect, it is not a big deal that do not support filterMode-'filter'
// when using toolbox#dataZoom, utill tooltip#dataZoom support "single axis
// selection" some day, which might need "adapt to data extent on the
// otherAxis", which is disabled by filterMode-'empty'.
// But currently, stack has been fixed to based on value but not index,
// so this is not an issue any more.
// let otherAxisModel = this.getOtherAxisModel();
// if (dataZoomModel.get('$fromToolbox')
// && otherAxisModel
// && otherAxisModel.hasSeriesStacked
// ) {
// filterMode = 'empty';
// }
// TODO
// filterMode 'weakFilter' and 'empty' is not optimized for huge data yet.
each(seriesModels, function (seriesModel) {
var seriesData = seriesModel.getData();
var dataDims = seriesData.mapDimensionsAll(axisDim);
if (!dataDims.length) {
return;
}
if (filterMode === 'weakFilter') {
var store_1 = seriesData.getStore();
var dataDimIndices_1 = zrUtil.map(dataDims, function (dim) {
return seriesData.getDimensionIndex(dim);
}, seriesData);
seriesData.filterSelf(function (dataIndex) {
var leftOut;
var rightOut;
var hasValue;
for (var i = 0; i < dataDims.length; i++) {
var value = store_1.get(dataDimIndices_1[i], dataIndex);
var thisHasValue = !isNaN(value);
var thisLeftOut = value < valueWindow[0];
var thisRightOut = value > valueWindow[1];
if (thisHasValue && !thisLeftOut && !thisRightOut) {
return true;
}
thisHasValue && (hasValue = true);
thisLeftOut && (leftOut = true);
thisRightOut && (rightOut = true);
}
// If both left out and right out, do not filter.
return hasValue && leftOut && rightOut;
});
} else {
each(dataDims, function (dim) {
if (filterMode === 'empty') {
seriesModel.setData(seriesData = seriesData.map(dim, function (value) {
return !isInWindow(value) ? NaN : value;
}));
} else {
var range = {};
range[dim] = valueWindow;
// console.time('select');
seriesData.selectRange(range);
// console.timeEnd('select');
}
});
}
each(dataDims, function (dim) {
seriesData.setApproximateExtent(valueWindow, dim);
});
});
function isInWindow(value) {
return value >= valueWindow[0] && value <= valueWindow[1];
}
};
AxisProxy.prototype._updateMinMaxSpan = function () {
var minMaxSpan = this._minMaxSpan = {};
var dataZoomModel = this._dataZoomModel;
var dataExtent = this._dataExtent;
each(['min', 'max'], function (minMax) {
var percentSpan = dataZoomModel.get(minMax + 'Span');
var valueSpan = dataZoomModel.get(minMax + 'ValueSpan');
valueSpan != null && (valueSpan = this.getAxisModel().axis.scale.parse(valueSpan));
// minValueSpan and maxValueSpan has higher priority than minSpan and maxSpan
if (valueSpan != null) {
percentSpan = numberUtil.linearMap(dataExtent[0] + valueSpan, dataExtent, [0, 100], true);
} else if (percentSpan != null) {
valueSpan = numberUtil.linearMap(percentSpan, [0, 100], dataExtent, true) - dataExtent[0];
}
minMaxSpan[minMax + 'Span'] = percentSpan;
minMaxSpan[minMax + 'ValueSpan'] = valueSpan;
}, this);
};
AxisProxy.prototype._setAxisModel = function () {
var axisModel = this.getAxisModel();
var percentWindow = this._percentWindow;
var valueWindow = this._valueWindow;
if (!percentWindow) {
return;
}
// [0, 500]: arbitrary value, guess axis extent.
var precision = numberUtil.getPixelPrecision(valueWindow, [0, 500]);
precision = Math.min(precision, 20);
// For value axis, if min/max/scale are not set, we just use the extent obtained
// by series data, which may be a little different from the extent calculated by
// `axisHelper.getScaleExtent`. But the different just affects the experience a
// little when zooming. So it will not be fixed until some users require it strongly.
var rawExtentInfo = axisModel.axis.scale.rawExtentInfo;
if (percentWindow[0] !== 0) {
rawExtentInfo.setDeterminedMinMax('min', +valueWindow[0].toFixed(precision));
}
if (percentWindow[1] !== 100) {
rawExtentInfo.setDeterminedMinMax('max', +valueWindow[1].toFixed(precision));
}
rawExtentInfo.freeze();
};
return AxisProxy;
}();
function calculateDataExtent(axisProxy, axisDim, seriesModels) {
var dataExtent = [Infinity, -Infinity];
each(seriesModels, function (seriesModel) {
unionAxisExtentFromData(dataExtent, seriesModel.getData(), axisDim);
});
// It is important to get "consistent" extent when more then one axes is
// controlled by a `dataZoom`, otherwise those axes will not be synchronized
// when zooming. But it is difficult to know what is "consistent", considering
// axes have different type or even different meanings (For example, two
// time axes are used to compare data of the same date in different years).
// So basically dataZoom just obtains extent by series.data (in category axis
// extent can be obtained from axis.data).
// Nevertheless, user can set min/max/scale on axes to make extent of axes
// consistent.
var axisModel = axisProxy.getAxisModel();
var rawExtentResult = ensureScaleRawExtentInfo(axisModel.axis.scale, axisModel, dataExtent).calculate();
return [rawExtentResult.min, rawExtentResult.max];
}
export default AxisProxy;