referHelper.js
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/*
* 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.
*/
/**
* Helper for model references.
* There are many manners to refer axis/coordSys.
*/
// TODO
// merge relevant logic to this file?
// check: "modelHelper" of tooltip and "BrushTargetManager".
import {__DEV__} from '../config';
import {createHashMap, retrieve, each} from 'zrender/src/core/util';
/**
* @return {Object} For example:
* {
* coordSysName: 'cartesian2d',
* coordSysDims: ['x', 'y', ...],
* axisMap: HashMap({
* x: xAxisModel,
* y: yAxisModel
* }),
* categoryAxisMap: HashMap({
* x: xAxisModel,
* y: undefined
* }),
* // It also indicate that whether there is category axis.
* firstCategoryDimIndex: 1,
* // To replace user specified encode.
* }
*/
export function getCoordSysDefineBySeries(seriesModel) {
var coordSysName = seriesModel.get('coordinateSystem');
var result = {
coordSysName: coordSysName,
coordSysDims: [],
axisMap: createHashMap(),
categoryAxisMap: createHashMap()
};
var fetch = fetchers[coordSysName];
if (fetch) {
fetch(seriesModel, result, result.axisMap, result.categoryAxisMap);
return result;
}
}
var fetchers = {
cartesian2d: function (seriesModel, result, axisMap, categoryAxisMap) {
var xAxisModel = seriesModel.getReferringComponents('xAxis')[0];
var yAxisModel = seriesModel.getReferringComponents('yAxis')[0];
if (__DEV__) {
if (!xAxisModel) {
throw new Error('xAxis "' + retrieve(
seriesModel.get('xAxisIndex'),
seriesModel.get('xAxisId'),
0
) + '" not found');
}
if (!yAxisModel) {
throw new Error('yAxis "' + retrieve(
seriesModel.get('xAxisIndex'),
seriesModel.get('yAxisId'),
0
) + '" not found');
}
}
result.coordSysDims = ['x', 'y'];
axisMap.set('x', xAxisModel);
axisMap.set('y', yAxisModel);
if (isCategory(xAxisModel)) {
categoryAxisMap.set('x', xAxisModel);
result.firstCategoryDimIndex = 0;
}
if (isCategory(yAxisModel)) {
categoryAxisMap.set('y', yAxisModel);
result.firstCategoryDimIndex = 1;
}
},
singleAxis: function (seriesModel, result, axisMap, categoryAxisMap) {
var singleAxisModel = seriesModel.getReferringComponents('singleAxis')[0];
if (__DEV__) {
if (!singleAxisModel) {
throw new Error('singleAxis should be specified.');
}
}
result.coordSysDims = ['single'];
axisMap.set('single', singleAxisModel);
if (isCategory(singleAxisModel)) {
categoryAxisMap.set('single', singleAxisModel);
result.firstCategoryDimIndex = 0;
}
},
polar: function (seriesModel, result, axisMap, categoryAxisMap) {
var polarModel = seriesModel.getReferringComponents('polar')[0];
var radiusAxisModel = polarModel.findAxisModel('radiusAxis');
var angleAxisModel = polarModel.findAxisModel('angleAxis');
if (__DEV__) {
if (!angleAxisModel) {
throw new Error('angleAxis option not found');
}
if (!radiusAxisModel) {
throw new Error('radiusAxis option not found');
}
}
result.coordSysDims = ['radius', 'angle'];
axisMap.set('radius', radiusAxisModel);
axisMap.set('angle', angleAxisModel);
if (isCategory(radiusAxisModel)) {
categoryAxisMap.set('radius', radiusAxisModel);
result.firstCategoryDimIndex = 0;
}
if (isCategory(angleAxisModel)) {
categoryAxisMap.set('angle', angleAxisModel);
result.firstCategoryDimIndex = 1;
}
},
geo: function (seriesModel, result, axisMap, categoryAxisMap) {
result.coordSysDims = ['lng', 'lat'];
},
parallel: function (seriesModel, result, axisMap, categoryAxisMap) {
var ecModel = seriesModel.ecModel;
var parallelModel = ecModel.getComponent(
'parallel', seriesModel.get('parallelIndex')
);
var coordSysDims = result.coordSysDims = parallelModel.dimensions.slice();
each(parallelModel.parallelAxisIndex, function (axisIndex, index) {
var axisModel = ecModel.getComponent('parallelAxis', axisIndex);
var axisDim = coordSysDims[index];
axisMap.set(axisDim, axisModel);
if (isCategory(axisModel) && result.firstCategoryDimIndex == null) {
categoryAxisMap.set(axisDim, axisModel);
result.firstCategoryDimIndex = index;
}
});
}
};
function isCategory(axisModel) {
return axisModel.get('type') === 'category';
}