categoryVisual.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.
*/
export default function (ecModel) {
var paletteScope = {};
ecModel.eachSeriesByType('graph', function (seriesModel) {
var categoriesData = seriesModel.getCategoriesData();
var data = seriesModel.getData();
var categoryNameIdxMap = {};
categoriesData.each(function (idx) {
var name = categoriesData.getName(idx);
// Add prefix to avoid conflict with Object.prototype.
categoryNameIdxMap['ec-' + name] = idx;
var itemModel = categoriesData.getItemModel(idx);
var color = itemModel.get('itemStyle.color')
|| seriesModel.getColorFromPalette(name, paletteScope);
categoriesData.setItemVisual(idx, 'color', color);
});
// Assign category color to visual
if (categoriesData.count()) {
data.each(function (idx) {
var model = data.getItemModel(idx);
var category = model.getShallow('category');
if (category != null) {
if (typeof category === 'string') {
category = categoryNameIdxMap['ec-' + category];
}
if (!data.getItemVisual(idx, 'color', true)) {
data.setItemVisual(
idx, 'color',
categoriesData.getItemVisual(category, 'color')
);
}
}
});
}
});
}