逐步完成前后端服务器
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201
frontend/node_modules/echarts/lib/label/sectorLabel.js
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frontend/node_modules/echarts/lib/label/sectorLabel.js
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { calculateTextPosition } from 'zrender/lib/contain/text.js';
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import { isArray, isNumber } from 'zrender/lib/core/util.js';
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export function createSectorCalculateTextPosition(positionMapping, opts) {
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opts = opts || {};
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var isRoundCap = opts.isRoundCap;
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return function (out, opts, boundingRect) {
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var textPosition = opts.position;
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if (!textPosition || textPosition instanceof Array) {
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return calculateTextPosition(out, opts, boundingRect);
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}
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var mappedSectorPosition = positionMapping(textPosition);
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var distance = opts.distance != null ? opts.distance : 5;
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var sector = this.shape;
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var cx = sector.cx;
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var cy = sector.cy;
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var r = sector.r;
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var r0 = sector.r0;
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var middleR = (r + r0) / 2;
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var startAngle = sector.startAngle;
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var endAngle = sector.endAngle;
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var middleAngle = (startAngle + endAngle) / 2;
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var extraDist = isRoundCap ? Math.abs(r - r0) / 2 : 0;
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var mathCos = Math.cos;
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var mathSin = Math.sin;
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// base position: top-left
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var x = cx + r * mathCos(startAngle);
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var y = cy + r * mathSin(startAngle);
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var textAlign = 'left';
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var textVerticalAlign = 'top';
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switch (mappedSectorPosition) {
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case 'startArc':
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x = cx + (r0 - distance) * mathCos(middleAngle);
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y = cy + (r0 - distance) * mathSin(middleAngle);
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textAlign = 'center';
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textVerticalAlign = 'top';
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break;
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case 'insideStartArc':
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x = cx + (r0 + distance) * mathCos(middleAngle);
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y = cy + (r0 + distance) * mathSin(middleAngle);
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textAlign = 'center';
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textVerticalAlign = 'bottom';
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break;
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case 'startAngle':
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x = cx + middleR * mathCos(startAngle) + adjustAngleDistanceX(startAngle, distance + extraDist, false);
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y = cy + middleR * mathSin(startAngle) + adjustAngleDistanceY(startAngle, distance + extraDist, false);
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textAlign = 'right';
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textVerticalAlign = 'middle';
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break;
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case 'insideStartAngle':
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x = cx + middleR * mathCos(startAngle) + adjustAngleDistanceX(startAngle, -distance + extraDist, false);
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y = cy + middleR * mathSin(startAngle) + adjustAngleDistanceY(startAngle, -distance + extraDist, false);
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textAlign = 'left';
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textVerticalAlign = 'middle';
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break;
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case 'middle':
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x = cx + middleR * mathCos(middleAngle);
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y = cy + middleR * mathSin(middleAngle);
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textAlign = 'center';
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textVerticalAlign = 'middle';
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break;
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case 'endArc':
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x = cx + (r + distance) * mathCos(middleAngle);
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y = cy + (r + distance) * mathSin(middleAngle);
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textAlign = 'center';
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textVerticalAlign = 'bottom';
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break;
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case 'insideEndArc':
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x = cx + (r - distance) * mathCos(middleAngle);
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y = cy + (r - distance) * mathSin(middleAngle);
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textAlign = 'center';
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textVerticalAlign = 'top';
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break;
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case 'endAngle':
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x = cx + middleR * mathCos(endAngle) + adjustAngleDistanceX(endAngle, distance + extraDist, true);
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y = cy + middleR * mathSin(endAngle) + adjustAngleDistanceY(endAngle, distance + extraDist, true);
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textAlign = 'left';
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textVerticalAlign = 'middle';
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break;
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case 'insideEndAngle':
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x = cx + middleR * mathCos(endAngle) + adjustAngleDistanceX(endAngle, -distance + extraDist, true);
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y = cy + middleR * mathSin(endAngle) + adjustAngleDistanceY(endAngle, -distance + extraDist, true);
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textAlign = 'right';
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textVerticalAlign = 'middle';
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break;
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default:
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return calculateTextPosition(out, opts, boundingRect);
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}
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out = out || {};
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out.x = x;
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out.y = y;
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out.align = textAlign;
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out.verticalAlign = textVerticalAlign;
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return out;
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};
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}
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export function setSectorTextRotation(sector, textPosition, positionMapping, rotateType) {
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if (isNumber(rotateType)) {
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// user-set rotation
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sector.setTextConfig({
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rotation: rotateType
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});
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return;
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} else if (isArray(textPosition)) {
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// user-set position, use 0 as auto rotation
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sector.setTextConfig({
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rotation: 0
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});
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return;
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}
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var shape = sector.shape;
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var startAngle = shape.clockwise ? shape.startAngle : shape.endAngle;
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var endAngle = shape.clockwise ? shape.endAngle : shape.startAngle;
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var middleAngle = (startAngle + endAngle) / 2;
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var anchorAngle;
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var mappedSectorPosition = positionMapping(textPosition);
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switch (mappedSectorPosition) {
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case 'startArc':
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case 'insideStartArc':
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case 'middle':
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case 'insideEndArc':
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case 'endArc':
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anchorAngle = middleAngle;
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break;
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case 'startAngle':
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case 'insideStartAngle':
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anchorAngle = startAngle;
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break;
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case 'endAngle':
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case 'insideEndAngle':
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anchorAngle = endAngle;
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break;
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default:
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sector.setTextConfig({
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rotation: 0
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});
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return;
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}
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var rotate = Math.PI * 1.5 - anchorAngle;
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/**
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* TODO: labels with rotate > Math.PI / 2 should be rotate another
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* half round flipped to increase readability. However, only middle
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* position supports this for now, because in other positions, the
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* anchor point is not at the center of the text, so the positions
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* after rotating is not as expected.
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*/
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if (mappedSectorPosition === 'middle' && rotate > Math.PI / 2 && rotate < Math.PI * 1.5) {
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rotate -= Math.PI;
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}
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sector.setTextConfig({
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rotation: rotate
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});
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}
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function adjustAngleDistanceX(angle, distance, isEnd) {
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return distance * Math.sin(angle) * (isEnd ? -1 : 1);
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}
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function adjustAngleDistanceY(angle, distance, isEnd) {
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return distance * Math.cos(angle) * (isEnd ? 1 : -1);
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}
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