逐步完成前后端服务器
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frontend/node_modules/echarts/extension/bmap/BMapCoordSys.js
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frontend/node_modules/echarts/extension/bmap/BMapCoordSys.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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// @ts-nocheck
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/* global BMap */
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import { util as zrUtil, graphic, matrix } from 'echarts';
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function BMapCoordSys(bmap, api) {
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this._bmap = bmap;
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this.dimensions = ['lng', 'lat'];
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this._mapOffset = [0, 0];
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this._api = api;
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this._projection = new BMap.MercatorProjection();
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}
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BMapCoordSys.prototype.type = 'bmap';
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BMapCoordSys.prototype.dimensions = ['lng', 'lat'];
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BMapCoordSys.prototype.setZoom = function (zoom) {
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this._zoom = zoom;
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};
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BMapCoordSys.prototype.setCenter = function (center) {
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this._center = this._projection.lngLatToPoint(new BMap.Point(center[0], center[1]));
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};
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BMapCoordSys.prototype.setMapOffset = function (mapOffset) {
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this._mapOffset = mapOffset;
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};
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BMapCoordSys.prototype.getBMap = function () {
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return this._bmap;
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};
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BMapCoordSys.prototype.dataToPoint = function (data) {
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var point = new BMap.Point(data[0], data[1]);
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// TODO mercator projection is toooooooo slow
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// let mercatorPoint = this._projection.lngLatToPoint(point);
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// let width = this._api.getZr().getWidth();
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// let height = this._api.getZr().getHeight();
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// let divider = Math.pow(2, 18 - 10);
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// return [
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// Math.round((mercatorPoint.x - this._center.x) / divider + width / 2),
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// Math.round((this._center.y - mercatorPoint.y) / divider + height / 2)
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// ];
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var px = this._bmap.pointToOverlayPixel(point);
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var mapOffset = this._mapOffset;
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return [px.x - mapOffset[0], px.y - mapOffset[1]];
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};
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BMapCoordSys.prototype.pointToData = function (pt) {
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var mapOffset = this._mapOffset;
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pt = this._bmap.overlayPixelToPoint({
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x: pt[0] + mapOffset[0],
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y: pt[1] + mapOffset[1]
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});
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return [pt.lng, pt.lat];
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};
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BMapCoordSys.prototype.getViewRect = function () {
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var api = this._api;
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return new graphic.BoundingRect(0, 0, api.getWidth(), api.getHeight());
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};
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BMapCoordSys.prototype.getRoamTransform = function () {
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return matrix.create();
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};
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BMapCoordSys.prototype.prepareCustoms = function () {
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var rect = this.getViewRect();
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return {
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coordSys: {
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// The name exposed to user is always 'cartesian2d' but not 'grid'.
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type: 'bmap',
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x: rect.x,
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y: rect.y,
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width: rect.width,
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height: rect.height
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},
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api: {
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coord: zrUtil.bind(this.dataToPoint, this),
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size: zrUtil.bind(dataToCoordSize, this)
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}
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};
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};
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BMapCoordSys.prototype.convertToPixel = function (ecModel, finder, value) {
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// here we ignore finder as only one bmap component is allowed
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return this.dataToPoint(value);
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};
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BMapCoordSys.prototype.convertFromPixel = function (ecModel, finder, value) {
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return this.pointToData(value);
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};
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function dataToCoordSize(dataSize, dataItem) {
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dataItem = dataItem || [0, 0];
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return zrUtil.map([0, 1], function (dimIdx) {
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var val = dataItem[dimIdx];
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var halfSize = dataSize[dimIdx] / 2;
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var p1 = [];
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var p2 = [];
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p1[dimIdx] = val - halfSize;
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p2[dimIdx] = val + halfSize;
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p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
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return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
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}, this);
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}
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var Overlay;
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// For deciding which dimensions to use when creating list data
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BMapCoordSys.dimensions = BMapCoordSys.prototype.dimensions;
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function createOverlayCtor() {
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function Overlay(root) {
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this._root = root;
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}
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Overlay.prototype = new BMap.Overlay();
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/**
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* 初始化
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*
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* @param {BMap.Map} map
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* @override
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*/
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Overlay.prototype.initialize = function (map) {
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map.getPanes().labelPane.appendChild(this._root);
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return this._root;
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};
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/**
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* @override
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*/
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Overlay.prototype.draw = function () {};
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return Overlay;
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}
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BMapCoordSys.create = function (ecModel, api) {
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var bmapCoordSys;
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var root = api.getDom();
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// TODO Dispose
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ecModel.eachComponent('bmap', function (bmapModel) {
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var painter = api.getZr().painter;
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var viewportRoot = painter.getViewportRoot();
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if (typeof BMap === 'undefined') {
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throw new Error('BMap api is not loaded');
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}
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Overlay = Overlay || createOverlayCtor();
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if (bmapCoordSys) {
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throw new Error('Only one bmap component can exist');
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}
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var bmap;
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if (!bmapModel.__bmap) {
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// Not support IE8
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var bmapRoot = root.querySelector('.ec-extension-bmap');
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if (bmapRoot) {
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// Reset viewport left and top, which will be changed
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// in moving handler in BMapView
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viewportRoot.style.left = '0px';
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viewportRoot.style.top = '0px';
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root.removeChild(bmapRoot);
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}
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bmapRoot = document.createElement('div');
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bmapRoot.className = 'ec-extension-bmap';
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// fix #13424
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bmapRoot.style.cssText = 'position:absolute;width:100%;height:100%';
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root.appendChild(bmapRoot);
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// initializes bmap
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var mapOptions = bmapModel.get('mapOptions');
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if (mapOptions) {
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mapOptions = zrUtil.clone(mapOptions);
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// Not support `mapType`, use `bmap.setMapType(MapType)` instead.
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delete mapOptions.mapType;
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}
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bmap = bmapModel.__bmap = new BMap.Map(bmapRoot, mapOptions);
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var overlay = new Overlay(viewportRoot);
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bmap.addOverlay(overlay);
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// Override
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painter.getViewportRootOffset = function () {
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return {
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offsetLeft: 0,
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offsetTop: 0
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};
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};
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}
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bmap = bmapModel.__bmap;
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// Set bmap options
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// centerAndZoom before layout and render
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var center = bmapModel.get('center');
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var zoom = bmapModel.get('zoom');
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if (center && zoom) {
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var bmapCenter = bmap.getCenter();
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var bmapZoom = bmap.getZoom();
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var centerOrZoomChanged = bmapModel.centerOrZoomChanged([bmapCenter.lng, bmapCenter.lat], bmapZoom);
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if (centerOrZoomChanged) {
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var pt = new BMap.Point(center[0], center[1]);
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bmap.centerAndZoom(pt, zoom);
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}
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}
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bmapCoordSys = new BMapCoordSys(bmap, api);
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bmapCoordSys.setMapOffset(bmapModel.__mapOffset || [0, 0]);
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bmapCoordSys.setZoom(zoom);
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bmapCoordSys.setCenter(center);
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bmapModel.coordinateSystem = bmapCoordSys;
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});
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ecModel.eachSeries(function (seriesModel) {
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if (seriesModel.get('coordinateSystem') === 'bmap') {
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seriesModel.coordinateSystem = bmapCoordSys;
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}
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});
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// return created coordinate systems
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return bmapCoordSys && [bmapCoordSys];
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};
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export default BMapCoordSys;
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