逐步完成前后端服务器
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frontend/node_modules/echarts/lib/chart/lines/LinesView.js
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frontend/node_modules/echarts/lib/chart/lines/LinesView.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 { __extends } from "tslib";
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import LineDraw from '../helper/LineDraw.js';
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import EffectLine from '../helper/EffectLine.js';
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import Line from '../helper/Line.js';
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import Polyline from '../helper/Polyline.js';
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import EffectPolyline from '../helper/EffectPolyline.js';
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import LargeLineDraw from '../helper/LargeLineDraw.js';
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import linesLayout from './linesLayout.js';
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import { createClipPath } from '../helper/createClipPathFromCoordSys.js';
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import ChartView from '../../view/Chart.js';
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var LinesView = /** @class */function (_super) {
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__extends(LinesView, _super);
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function LinesView() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.type = LinesView.type;
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return _this;
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}
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LinesView.prototype.render = function (seriesModel, ecModel, api) {
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var data = seriesModel.getData();
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var lineDraw = this._updateLineDraw(data, seriesModel);
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var zlevel = seriesModel.get('zlevel');
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var trailLength = seriesModel.get(['effect', 'trailLength']);
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var zr = api.getZr();
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// Avoid the drag cause ghost shadow
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// FIXME Better way ?
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// SVG doesn't support
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var isSvg = zr.painter.getType() === 'svg';
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if (!isSvg) {
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zr.painter.getLayer(zlevel).clear(true);
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}
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// Config layer with motion blur
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if (this._lastZlevel != null && !isSvg) {
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zr.configLayer(this._lastZlevel, {
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motionBlur: false
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});
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}
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if (this._showEffect(seriesModel) && trailLength > 0) {
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if (!isSvg) {
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zr.configLayer(zlevel, {
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motionBlur: true,
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lastFrameAlpha: Math.max(Math.min(trailLength / 10 + 0.9, 1), 0)
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});
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} else if (process.env.NODE_ENV !== 'production') {
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console.warn('SVG render mode doesn\'t support lines with trail effect');
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}
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}
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lineDraw.updateData(data);
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var clipPath = seriesModel.get('clip', true) && createClipPath(seriesModel.coordinateSystem, false, seriesModel);
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if (clipPath) {
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this.group.setClipPath(clipPath);
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} else {
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this.group.removeClipPath();
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}
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this._lastZlevel = zlevel;
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this._finished = true;
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};
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LinesView.prototype.incrementalPrepareRender = function (seriesModel, ecModel, api) {
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var data = seriesModel.getData();
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var lineDraw = this._updateLineDraw(data, seriesModel);
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lineDraw.incrementalPrepareUpdate(data);
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this._clearLayer(api);
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this._finished = false;
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};
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LinesView.prototype.incrementalRender = function (taskParams, seriesModel, ecModel) {
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this._lineDraw.incrementalUpdate(taskParams, seriesModel.getData());
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this._finished = taskParams.end === seriesModel.getData().count();
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};
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LinesView.prototype.eachRendered = function (cb) {
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this._lineDraw && this._lineDraw.eachRendered(cb);
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};
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LinesView.prototype.updateTransform = function (seriesModel, ecModel, api) {
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var data = seriesModel.getData();
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var pipelineContext = seriesModel.pipelineContext;
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if (!this._finished || pipelineContext.large || pipelineContext.progressiveRender) {
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// TODO Don't have to do update in large mode. Only do it when there are millions of data.
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return {
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update: true
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};
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} else {
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// TODO Use same logic with ScatterView.
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// Manually update layout
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var res = linesLayout.reset(seriesModel, ecModel, api);
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if (res.progress) {
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res.progress({
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start: 0,
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end: data.count(),
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count: data.count()
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}, data);
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}
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// Not in large mode
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this._lineDraw.updateLayout();
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this._clearLayer(api);
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}
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};
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LinesView.prototype._updateLineDraw = function (data, seriesModel) {
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var lineDraw = this._lineDraw;
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var hasEffect = this._showEffect(seriesModel);
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var isPolyline = !!seriesModel.get('polyline');
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var pipelineContext = seriesModel.pipelineContext;
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var isLargeDraw = pipelineContext.large;
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if (process.env.NODE_ENV !== 'production') {
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if (hasEffect && isLargeDraw) {
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console.warn('Large lines not support effect');
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}
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}
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if (!lineDraw || hasEffect !== this._hasEffet || isPolyline !== this._isPolyline || isLargeDraw !== this._isLargeDraw) {
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if (lineDraw) {
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lineDraw.remove();
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}
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lineDraw = this._lineDraw = isLargeDraw ? new LargeLineDraw() : new LineDraw(isPolyline ? hasEffect ? EffectPolyline : Polyline : hasEffect ? EffectLine : Line);
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this._hasEffet = hasEffect;
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this._isPolyline = isPolyline;
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this._isLargeDraw = isLargeDraw;
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}
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this.group.add(lineDraw.group);
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return lineDraw;
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};
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LinesView.prototype._showEffect = function (seriesModel) {
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return !!seriesModel.get(['effect', 'show']);
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};
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LinesView.prototype._clearLayer = function (api) {
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// Not use motion when dragging or zooming
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var zr = api.getZr();
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var isSvg = zr.painter.getType() === 'svg';
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if (!isSvg && this._lastZlevel != null) {
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zr.painter.getLayer(this._lastZlevel).clear(true);
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}
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};
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LinesView.prototype.remove = function (ecModel, api) {
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this._lineDraw && this._lineDraw.remove();
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this._lineDraw = null;
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// Clear motion when lineDraw is removed
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this._clearLayer(api);
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};
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LinesView.prototype.dispose = function (ecModel, api) {
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this.remove(ecModel, api);
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};
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LinesView.type = 'lines';
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return LinesView;
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}(ChartView);
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export default LinesView;
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