findPointFromSeries.js
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var zrUtil = require("zrender/lib/core/util");
var modelUtil = require("../../util/model");
/*
* 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.
*/
/**
* @param {Object} finder contains {seriesIndex, dataIndex, dataIndexInside}
* @param {module:echarts/model/Global} ecModel
* @return {Object} {point: [x, y], el: ...} point Will not be null.
*/
function _default(finder, ecModel) {
var point = [];
var seriesIndex = finder.seriesIndex;
var seriesModel;
if (seriesIndex == null || !(seriesModel = ecModel.getSeriesByIndex(seriesIndex))) {
return {
point: []
};
}
var data = seriesModel.getData();
var dataIndex = modelUtil.queryDataIndex(data, finder);
if (dataIndex == null || dataIndex < 0 || zrUtil.isArray(dataIndex)) {
return {
point: []
};
}
var el = data.getItemGraphicEl(dataIndex);
var coordSys = seriesModel.coordinateSystem;
if (seriesModel.getTooltipPosition) {
point = seriesModel.getTooltipPosition(dataIndex) || [];
} else if (coordSys && coordSys.dataToPoint) {
point = coordSys.dataToPoint(data.getValues(zrUtil.map(coordSys.dimensions, function (dim) {
return data.mapDimension(dim);
}), dataIndex, true)) || [];
} else if (el) {
// Use graphic bounding rect
var rect = el.getBoundingRect().clone();
rect.applyTransform(el.transform);
point = [rect.x + rect.width / 2, rect.y + rect.height / 2];
}
return {
point: point,
el: el
};
}
module.exports = _default;