BoxplotView.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.
*/
import * as zrUtil from 'zrender/src/core/util';
import ChartView from '../../view/Chart';
import * as graphic from '../../util/graphic';
import Path from 'zrender/src/graphic/Path';
// Update common properties
var NORMAL_ITEM_STYLE_PATH = ['itemStyle'];
var EMPHASIS_ITEM_STYLE_PATH = ['emphasis', 'itemStyle'];
var BoxplotView = ChartView.extend({
type: 'boxplot',
render: function (seriesModel, ecModel, api) {
var data = seriesModel.getData();
var group = this.group;
var oldData = this._data;
// There is no old data only when first rendering or switching from
// stream mode to normal mode, where previous elements should be removed.
if (!this._data) {
group.removeAll();
}
var constDim = seriesModel.get('layout') === 'horizontal' ? 1 : 0;
data.diff(oldData)
.add(function (newIdx) {
if (data.hasValue(newIdx)) {
var itemLayout = data.getItemLayout(newIdx);
var symbolEl = createNormalBox(itemLayout, data, newIdx, constDim, true);
data.setItemGraphicEl(newIdx, symbolEl);
group.add(symbolEl);
}
})
.update(function (newIdx, oldIdx) {
var symbolEl = oldData.getItemGraphicEl(oldIdx);
// Empty data
if (!data.hasValue(newIdx)) {
group.remove(symbolEl);
return;
}
var itemLayout = data.getItemLayout(newIdx);
if (!symbolEl) {
symbolEl = createNormalBox(itemLayout, data, newIdx, constDim);
}
else {
updateNormalBoxData(itemLayout, symbolEl, data, newIdx);
}
group.add(symbolEl);
data.setItemGraphicEl(newIdx, symbolEl);
})
.remove(function (oldIdx) {
var el = oldData.getItemGraphicEl(oldIdx);
el && group.remove(el);
})
.execute();
this._data = data;
},
remove: function (ecModel) {
var group = this.group;
var data = this._data;
this._data = null;
data && data.eachItemGraphicEl(function (el) {
el && group.remove(el);
});
},
dispose: zrUtil.noop
});
var BoxPath = Path.extend({
type: 'boxplotBoxPath',
shape: {},
buildPath: function (ctx, shape) {
var ends = shape.points;
var i = 0;
ctx.moveTo(ends[i][0], ends[i][1]);
i++;
for (; i < 4; i++) {
ctx.lineTo(ends[i][0], ends[i][1]);
}
ctx.closePath();
for (; i < ends.length; i++) {
ctx.moveTo(ends[i][0], ends[i][1]);
i++;
ctx.lineTo(ends[i][0], ends[i][1]);
}
}
});
function createNormalBox(itemLayout, data, dataIndex, constDim, isInit) {
var ends = itemLayout.ends;
var el = new BoxPath({
shape: {
points: isInit
? transInit(ends, constDim, itemLayout)
: ends
}
});
updateNormalBoxData(itemLayout, el, data, dataIndex, isInit);
return el;
}
function updateNormalBoxData(itemLayout, el, data, dataIndex, isInit) {
var seriesModel = data.hostModel;
var updateMethod = graphic[isInit ? 'initProps' : 'updateProps'];
updateMethod(
el,
{shape: {points: itemLayout.ends}},
seriesModel,
dataIndex
);
var itemModel = data.getItemModel(dataIndex);
var normalItemStyleModel = itemModel.getModel(NORMAL_ITEM_STYLE_PATH);
var borderColor = data.getItemVisual(dataIndex, 'color');
// Exclude borderColor.
var itemStyle = normalItemStyleModel.getItemStyle(['borderColor']);
itemStyle.stroke = borderColor;
itemStyle.strokeNoScale = true;
el.useStyle(itemStyle);
el.z2 = 100;
var hoverStyle = itemModel.getModel(EMPHASIS_ITEM_STYLE_PATH).getItemStyle();
graphic.setHoverStyle(el, hoverStyle);
}
function transInit(points, dim, itemLayout) {
return zrUtil.map(points, function (point) {
point = point.slice();
point[dim] = itemLayout.initBaseline;
return point;
});
}
export default BoxplotView;