polarCreator.js
5.73 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*
* 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.
*/
// TODO Axis scale
import {__DEV__} from '../../config';
import * as zrUtil from 'zrender/src/core/util';
import Polar from './Polar';
import {parsePercent} from '../../util/number';
import {
createScaleByModel,
niceScaleExtent
} from '../../coord/axisHelper';
import CoordinateSystem from '../../CoordinateSystem';
import {getStackedDimension} from '../../data/helper/dataStackHelper';
import './PolarModel';
/**
* Resize method bound to the polar
* @param {module:echarts/coord/polar/PolarModel} polarModel
* @param {module:echarts/ExtensionAPI} api
*/
function resizePolar(polar, polarModel, api) {
var center = polarModel.get('center');
var width = api.getWidth();
var height = api.getHeight();
polar.cx = parsePercent(center[0], width);
polar.cy = parsePercent(center[1], height);
var radiusAxis = polar.getRadiusAxis();
var size = Math.min(width, height) / 2;
var radius = parsePercent(polarModel.get('radius'), size);
radiusAxis.inverse
? radiusAxis.setExtent(radius, 0)
: radiusAxis.setExtent(0, radius);
}
/**
* Update polar
*/
function updatePolarScale(ecModel, api) {
var polar = this;
var angleAxis = polar.getAngleAxis();
var radiusAxis = polar.getRadiusAxis();
// Reset scale
angleAxis.scale.setExtent(Infinity, -Infinity);
radiusAxis.scale.setExtent(Infinity, -Infinity);
ecModel.eachSeries(function (seriesModel) {
if (seriesModel.coordinateSystem === polar) {
var data = seriesModel.getData();
zrUtil.each(data.mapDimension('radius', true), function (dim) {
radiusAxis.scale.unionExtentFromData(
data, getStackedDimension(data, dim)
);
});
zrUtil.each(data.mapDimension('angle', true), function (dim) {
angleAxis.scale.unionExtentFromData(
data, getStackedDimension(data, dim)
);
});
}
});
niceScaleExtent(angleAxis.scale, angleAxis.model);
niceScaleExtent(radiusAxis.scale, radiusAxis.model);
// Fix extent of category angle axis
if (angleAxis.type === 'category' && !angleAxis.onBand) {
var extent = angleAxis.getExtent();
var diff = 360 / angleAxis.scale.count();
angleAxis.inverse ? (extent[1] += diff) : (extent[1] -= diff);
angleAxis.setExtent(extent[0], extent[1]);
}
}
/**
* Set common axis properties
* @param {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}
* @param {module:echarts/coord/polar/AxisModel}
* @inner
*/
function setAxis(axis, axisModel) {
axis.type = axisModel.get('type');
axis.scale = createScaleByModel(axisModel);
axis.onBand = axisModel.get('boundaryGap') && axis.type === 'category';
axis.inverse = axisModel.get('inverse');
if (axisModel.mainType === 'angleAxis') {
axis.inverse ^= axisModel.get('clockwise');
var startAngle = axisModel.get('startAngle');
axis.setExtent(startAngle, startAngle + (axis.inverse ? -360 : 360));
}
// Inject axis instance
axisModel.axis = axis;
axis.model = axisModel;
}
var polarCreator = {
dimensions: Polar.prototype.dimensions,
create: function (ecModel, api) {
var polarList = [];
ecModel.eachComponent('polar', function (polarModel, idx) {
var polar = new Polar(idx);
// Inject resize and update method
polar.update = updatePolarScale;
var radiusAxis = polar.getRadiusAxis();
var angleAxis = polar.getAngleAxis();
var radiusAxisModel = polarModel.findAxisModel('radiusAxis');
var angleAxisModel = polarModel.findAxisModel('angleAxis');
setAxis(radiusAxis, radiusAxisModel);
setAxis(angleAxis, angleAxisModel);
resizePolar(polar, polarModel, api);
polarList.push(polar);
polarModel.coordinateSystem = polar;
polar.model = polarModel;
});
// Inject coordinateSystem to series
ecModel.eachSeries(function (seriesModel) {
if (seriesModel.get('coordinateSystem') === 'polar') {
var polarModel = ecModel.queryComponents({
mainType: 'polar',
index: seriesModel.get('polarIndex'),
id: seriesModel.get('polarId')
})[0];
if (__DEV__) {
if (!polarModel) {
throw new Error(
'Polar "' + zrUtil.retrieve(
seriesModel.get('polarIndex'),
seriesModel.get('polarId'),
0
) + '" not found'
);
}
}
seriesModel.coordinateSystem = polarModel.coordinateSystem;
}
});
return polarList;
}
};
CoordinateSystem.register('polar', polarCreator);