echarts-nightly
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Apache ECharts is a powerful, interactive charting and data visualization library for browser
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JavaScript
/*
* 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.
*/
/**
* AUTO-GENERATED FILE. DO NOT MODIFY.
*/
/*
* 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 { linearMap } from '../../util/number.js';
import { normalizeArcAngles } from 'zrender/lib/core/PathProxy.js';
import { makeInner } from '../../util/model.js';
import { getCircleLayout } from '../../util/layout.js';
var PI2 = Math.PI * 2;
var RADIAN = Math.PI / 180;
export default function pieLayout(seriesType, ecModel, api) {
ecModel.eachSeriesByType(seriesType, function (seriesModel) {
var data = seriesModel.getData();
var valueDim = data.mapDimension('value');
var _a = getCircleLayout(seriesModel, api),
cx = _a.cx,
cy = _a.cy,
r = _a.r,
r0 = _a.r0,
viewRect = _a.viewRect;
var startAngle = -seriesModel.get('startAngle') * RADIAN;
var endAngle = seriesModel.get('endAngle');
var padAngle = seriesModel.get('padAngle') * RADIAN;
endAngle = endAngle === 'auto' ? startAngle - PI2 : -endAngle * RADIAN;
var minAngle = seriesModel.get('minAngle') * RADIAN;
var minAndPadAngle = minAngle + padAngle;
var validDataCount = 0;
data.each(valueDim, function (value) {
!isNaN(value) && validDataCount++;
});
var sum = data.getSum(valueDim);
// Sum may be 0
var unitRadian = Math.PI / (sum || validDataCount) * 2;
var clockwise = seriesModel.get('clockwise');
var roseType = seriesModel.get('roseType');
var stillShowZeroSum = seriesModel.get('stillShowZeroSum');
// [0...max]
var extent = data.getDataExtent(valueDim);
extent[0] = 0;
var dir = clockwise ? 1 : -1;
var angles = [startAngle, endAngle];
var halfPadAngle = dir * padAngle / 2;
normalizeArcAngles(angles, !clockwise);
startAngle = angles[0], endAngle = angles[1];
var layoutData = getSeriesLayoutData(seriesModel);
layoutData.startAngle = startAngle;
layoutData.endAngle = endAngle;
layoutData.clockwise = clockwise;
layoutData.cx = cx;
layoutData.cy = cy;
layoutData.r = r;
layoutData.r0 = r0;
var angleRange = Math.abs(endAngle - startAngle);
// In the case some sector angle is smaller than minAngle
var restAngle = angleRange;
var valueSumLargerThanMinAngle = 0;
var currentAngle = startAngle;
// Requird by `pieLabelLayout`.
data.setLayout({
viewRect: viewRect,
r: r
});
data.each(valueDim, function (value, idx) {
var angle;
if (isNaN(value)) {
data.setItemLayout(idx, {
angle: NaN,
startAngle: NaN,
endAngle: NaN,
clockwise: clockwise,
cx: cx,
cy: cy,
r0: r0,
r: roseType ? NaN : r
});
return;
}
// FIXME 兼容 2.0 但是 roseType 是 area 的时候才是这样？
if (roseType !== 'area') {
angle = sum === 0 && stillShowZeroSum ? unitRadian : value * unitRadian;
} else {
angle = angleRange / validDataCount;
}
if (angle < minAndPadAngle) {
angle = minAndPadAngle;
restAngle -= minAndPadAngle;
} else {
valueSumLargerThanMinAngle += value;
}
var endAngle = currentAngle + dir * angle;
// calculate display angle
var actualStartAngle = 0;
var actualEndAngle = 0;
if (padAngle > angle) {
actualStartAngle = currentAngle + dir * angle / 2;
actualEndAngle = actualStartAngle;
} else {
actualStartAngle = currentAngle + halfPadAngle;
actualEndAngle = endAngle - halfPadAngle;
}
data.setItemLayout(idx, {
angle: angle,
startAngle: actualStartAngle,
endAngle: actualEndAngle,
clockwise: clockwise,
cx: cx,
cy: cy,
r0: r0,
r: roseType ? linearMap(value, extent, [r0, r]) : r
});
currentAngle = endAngle;
});
// Some sector is constrained by minAngle and padAngle
// Rest sectors needs recalculate angle
if (restAngle < PI2 && validDataCount) {
// Average the angle if rest angle is not enough after all angles is
// Constrained by minAngle and padAngle
if (restAngle <= 1e-3) {
var angle_1 = angleRange / validDataCount;
data.each(valueDim, function (value, idx) {
if (!isNaN(value)) {
var layout = data.getItemLayout(idx);
layout.angle = angle_1;
var actualStartAngle = 0;
var actualEndAngle = 0;
if (angle_1 < padAngle) {
actualStartAngle = startAngle + dir * (idx + 1 / 2) * angle_1;
actualEndAngle = actualStartAngle;
} else {
actualStartAngle = startAngle + dir * idx * angle_1 + halfPadAngle;
actualEndAngle = startAngle + dir * (idx + 1) * angle_1 - halfPadAngle;
}
layout.startAngle = actualStartAngle;
layout.endAngle = actualEndAngle;
}
});
} else {
unitRadian = restAngle / valueSumLargerThanMinAngle;
currentAngle = startAngle;
data.each(valueDim, function (value, idx) {
if (!isNaN(value)) {
var layout = data.getItemLayout(idx);
var angle = layout.angle === minAndPadAngle ? minAndPadAngle : value * unitRadian;
var actualStartAngle = 0;
var actualEndAngle = 0;
if (angle < padAngle) {
actualStartAngle = currentAngle + dir * angle / 2;
actualEndAngle = actualStartAngle;
} else {
actualStartAngle = currentAngle + halfPadAngle;
actualEndAngle = currentAngle + dir * angle - halfPadAngle;
}
layout.startAngle = actualStartAngle;
layout.endAngle = actualEndAngle;
currentAngle += dir * angle;
}
});
}
}
});
}
export var getSeriesLayoutData = makeInner();