forked from SuperMap/iClient-JavaScript
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathWebMap.js
More file actions
5485 lines (5316 loc) · 184 KB
/
WebMap.js
File metadata and controls
5485 lines (5316 loc) · 184 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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* Copyright© 2000 - 2024 SuperMap Software Co.Ltd. All rights reserved.
* This program are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution and is available at http://www.apache.org/licenses/LICENSE-2.0.html.*/
import proj4 from 'proj4';
import { FetchRequest } from '@supermap/iclient-common/util/FetchRequest';
import { ArrayStatistic } from '@supermap/iclient-common/util/ArrayStatistic';
import { ColorsPickerUtil } from '@supermap/iclient-common/util/ColorsPickerUtil';
import { SecurityManager } from '@supermap/iclient-common/security/SecurityManager';
import { Events } from '@supermap/iclient-common/commontypes/Events';
import { Util as CommonUtil } from '@supermap/iclient-common/commontypes/Util';
import { parseCondition, parseConditionFeature } from '@supermap/iclient-common/util/FilterCondition';
import { Util } from '../core/Util';
import { getFeatureBySQL, queryFeatureBySQL, getFeatureProperties } from './webmap/Util';
import { StyleUtils } from '../core/StyleUtils';
import { TileSuperMapRest, Tianditu, BaiduMap } from '../mapping';
import { VectorTileSuperMapRest, Graphic as GraphicSource, MapboxStyles, OverlayGraphic } from '../overlay';
import { DataFlowService } from '../services';
import provincialCenterData from './webmap/config/ProvinceCenter.json'; // eslint-disable-line import/extensions
import municipalCenterData from './webmap/config/MunicipalCenter.json'; // eslint-disable-line import/extensions
import SampleDataInfo from './webmap/config/SampleDataInfo.json'; // eslint-disable-line import/extensions
import GeoJSON from 'ol/format/GeoJSON';
import MVT from 'ol/format/MVT';
import Observable from 'ol/Observable';
import olMap from 'ol/Map';
import View from 'ol/View';
import MouseWheelZoom from 'ol/interaction/MouseWheelZoom';
import * as olProj from 'ol/proj';
import * as olProj4 from 'ol/proj/proj4';
import * as olLayer from 'ol/layer';
import WMTSCapabilities from 'ol/format/WMTSCapabilities';
import WMSCapabilities from 'ol/format/WMSCapabilities';
import TileGrid from 'ol/tilegrid/TileGrid';
import WMTSTileGrid from 'ol/tilegrid/WMTS';
import * as olGeometry from 'ol/geom';
import Vector from 'ol/source/Vector';
import XYZ from 'ol/source/XYZ';
import WMTS from 'ol/source/WMTS';
import BingMaps from 'ol/source/BingMaps';
import TileWMS from 'ol/source/TileWMS';
import Feature from 'ol/Feature';
import olRenderFeature from 'ol/render/Feature';
import Style from 'ol/style/Style';
import FillStyle from 'ol/style/Fill';
import StrokeStyle from 'ol/style/Stroke';
import Text from 'ol/style/Text';
import Collection from 'ol/Collection';
import { containsCoordinate, getCenter } from 'ol/extent';
import difference from 'lodash.difference';
window.proj4 = proj4;
window.Proj4js = proj4;
//数据转换工具
const transformTools = new GeoJSON();
// 迁徙图最大支持要素数量
const MAX_MIGRATION_ANIMATION_COUNT = 1000;
//不同坐标系单位。计算公式中的值
const metersPerUnit = {
DEGREES: (2 * Math.PI * 6370997) / 360,
DEGREE: (2 * Math.PI * 6370997) / 360,
FEET: 0.3048,
METERS: 1,
METER: 1,
M: 1,
USFEET: 1200 / 3937
};
const dpiConfig = {
default: 96, // 常用dpi
iServerWMTS: 90.7142857142857 // iserver使用的wmts图层dpi
};
/**
* @class WebMap
* @category iPortal/Online Resources Map
* @classdesc 对接 iPortal/Online 地图类
* @modulecategory Mapping
* @param {Object} options - 参数。
* @param {string} [options.target='map'] - 地图容器 ID。
* @param {Object | string} [options.webMap] - webMap 对象，或者是获取 webMap 的 URL 地址。存在 webMap，优先使用 webMap，ID 的选项则会被忽略。
* @param {number} [options.id] - 地图的 ID。
* @param {string} [options.server] - 地图的地址，如果使用传入 ID，server 则会和 ID 拼接成 webMap 请求地址。
* @param {function} [options.successCallback] - 成功加载地图后调用的函数。
* @param {function} [options.errorCallback] - 加载地图失败调用的函数。
* @param {string} [options.credentialKey] - 凭证密钥。例如为 "key"、"token"，或者用户自定义的密钥。用户申请了密钥，此参数必填。
* @param {string} [options.credentialValue] - 凭证密钥对应的值，credentialKey 和 credentialValue 必须一起使用。
* @param {boolean} [options.withCredentials=false] - 请求是否携带 cookie。
* @param {boolean} [options.excludePortalProxyUrl] - server 传递过来的 URL 是否带有代理。
* @param {Object} [options.serviceProxy] - SuperMap iPortal 内置代理信息，仅矢量瓦片图层上图才会使用。
* @param {string} [options.tiandituKey] - 天地图的 key。
* @param {string} [options.bingMapsKey] - 必应地图的 key。
* @param {string} [options.googleMapsAPIKey] - 谷歌底图需要的 key。
* @param {string} [options.proxy] - 代理地址，当域名不一致，请求会加上代理。避免跨域。
* @param {string} [options.tileFormat] - 地图瓦片出图格式，png/webp。
* @param {Object} [options.mapSetting] - 地图可选参数。
* @param {function} [options.mapSetting.mapClickCallback] - 地图被点击的回调函数。
* @param {function} [options.mapSetting.overlays] - 地图的 overlays。
* @param {function} [options.mapSetting.controls] - 地图的控件。
* @param {function} [options.mapSetting.interactions] - 地图控制的参数。
* @param {number} [options.restDataSingleRequestCount=1000] - 自定义 restData 分批请求，单次请求数量。
* @extends {ol.Observable}
* @usage
*/
export class WebMap extends Observable {
constructor(id, options) {
super();
if (Util.isObject(id)) {
options = id;
this.mapId = options.id;
} else {
this.mapId = id;
}
options = options || {};
this.server = options.server;
this.successCallback = options.successCallback;
this.errorCallback = options.errorCallback;
this.credentialKey = options.credentialKey;
this.credentialValue = options.credentialValue;
this.withCredentials = options.withCredentials || false;
this.target = options.target || 'map';
this.excludePortalProxyUrl = options.excludePortalProxyUrl || false;
this.serviceProxy = options.serviceProxy || null;
this.tiandituKey = options.tiandituKey;
this.bingMapsKey = options.bingMapsKey || '';
this.googleMapsAPIKey = options.googleMapsAPIKey || '';
this.proxy = options.proxy;
//计数叠加图层，处理过的数量（成功和失败都会计数）
this.layerAdded = 0;
this.layers = [];
this.events = new Events(this, null, ['updateDataflowFeature'], true);
this.webMap = options.webMap;
this.tileFormat = options.tileFormat && options.tileFormat.toLowerCase();
this.restDataSingleRequestCount = options.restDataSingleRequestCount || 1000;
this.createMap(options.mapSetting);
if (this.webMap) {
// webmap有可能是url地址，有可能是webmap对象
Util.isString(this.webMap) ? this.createWebmap(this.webMap) : this.getMapInfoSuccess(options.webMap);
} else {
this.createWebmap();
}
}
/**
* @private
* @function WebMap.prototype._removeBaseLayer
* @description 移除底图
*/
_removeBaseLayer() {
const map = this.map;
const { layer, labelLayer } = this.baseLayer;
// 移除天地图标签图层
labelLayer && map.removeLayer(labelLayer);
// 移除图层
layer && map.removeLayer(layer);
this.baseLayer = null;
}
/**
* @private
* @function WebMap.prototype._removeLayers
* @description 移除叠加图层
*/
_removeLayers() {
const map = this.map;
this.layers.forEach(({ layerType, layer, labelLayer, pathLayer, dataflowService }) => {
if (!layer) {
return;
}
if (layerType === 'MIGRATION') {
layer.remove();
return;
}
if (layerType === 'DATAFLOW_POINT_TRACK' || layerType === 'DATAFLOW_HEAT') {
// 移除轨迹图层
pathLayer && map.removeLayer(pathLayer);
// 取消订阅
dataflowService && dataflowService.unSubscribe();
}
// 移除标签图层
labelLayer && map.removeLayer(labelLayer);
// 移除图层
map.removeLayer(layer);
});
this.layers = [];
}
/**
* @private
* @function WebMap.prototype.clear
* @description 清空地图
*/
_clear() {
// 比例尺
this.scales = [];
// 分辨率
this.resolutionArray = [];
// 比例尺-分辨率 {scale: resolution}
this.resolutions = {};
// 计数叠加图层，处理过的数量（成功和失败都会计数）
this.layerAdded = 0;
this._removeBaseLayer();
this._removeLayers();
}
/**
* @function WebMap.prototype.refresh
* @version 10.1.0
* @description 重新渲染地图。
*/
refresh() {
this._clear();
this.createWebmap();
}
/**
* @private
* @function WebMap.prototype.createMap
* @description 创建地图对象以及注册地图事件
* @param {Object} mapSetting - 关于地图的设置以及需要注册的事件
*/
createMap(mapSetting) {
let overlays, controls, interactions;
if (mapSetting) {
interactions = mapSetting.interactions;
overlays = mapSetting.overlays;
controls = mapSetting.controls;
}
this.map = new olMap({
interactions: interactions,
overlays: overlays,
controls: controls,
target: this.target
});
mapSetting &&
this.registerMapEvent({
mapClickCallback: mapSetting.mapClickCallback
});
}
/**
* @private
* @function WebMap.prototype.registerMapEvent
* @description 注册地图事件
* @param {Object} mapSetting - 关于地图的设置以及需要注册的事件
*/
registerMapEvent(mapSetting) {
let map = this.map;
map.on('click', function (evt) {
mapSetting.mapClickCallback && mapSetting.mapClickCallback(evt);
});
}
/**
* @private
* @function WebMap.prototype.createWebmap
* @description 创建webmap
* @param {string} webMapUrl - 请求webMap的地址
*/
createWebmap(webMapUrl) {
let mapUrl;
if (webMapUrl) {
mapUrl = webMapUrl;
} else {
let urlArr = this.server.split('');
if (urlArr[urlArr.length - 1] !== '/') {
this.server += '/';
}
mapUrl = this.server + 'web/maps/' + this.mapId + '/map';
let filter = 'getUrlResource.json?url=';
if (this.excludePortalProxyUrl && this.server.indexOf(filter) > -1) {
//大屏需求,或者有加上代理的
let urlArray = this.server.split(filter);
if (urlArray.length > 1) {
mapUrl = urlArray[0] + filter + this.server + 'web/maps/' + this.mapId + '/map.json';
}
}
}
this.getMapInfo(mapUrl);
}
/**
* @private
* @function WebMap.prototype.getMapInfo
* @description 获取地图的json信息
* @param {string} url - 请求地图的url
*/
getMapInfo(url) {
let that = this,
mapUrl = url;
if (url.indexOf('.json') === -1) {
url = this.handleJSONSuffix(url);
//传递过来的url,没有包括.json,在这里加上。
mapUrl = url;
}
FetchRequest.get(that.getRequestUrl(mapUrl), null, {
withCredentials: this.withCredentials
})
.then(function (response) {
return response.json();
})
.then(function (mapInfo) {
that.getMapInfoSuccess(mapInfo);
})
.catch(function (error) {
that.errorCallback && that.errorCallback(error, 'getMapFaild', that.map);
});
}
/**
* @private
* @function WebMap.prototype.getMapInfoSuccess
* @description 获取地图的json信息
* @param {Object} mapInfo - webMap对象
*/
async getMapInfoSuccess(mapInfo) {
let that = this;
if (mapInfo.succeed === false) {
that.errorCallback && that.errorCallback(mapInfo.error, 'getMapFaild', that.map);
return;
}
let handleResult = await that.handleCRS(mapInfo.projection, mapInfo.baseLayer.url);
//存储地图的名称以及描述等信息，返回给用户
that.mapParams = {
title: mapInfo.title,
description: mapInfo.description
};
if (handleResult.action === 'BrowseMap') {
that.createSpecLayer(mapInfo);
} else if (handleResult.action === 'OpenMap') {
that.baseProjection = handleResult.newCrs || mapInfo.projection;
that.webMapVersion = mapInfo.version;
that.baseLayer = mapInfo.baseLayer;
// that.mapParams = {
// title: mapInfo.title,
// description: mapInfo.description
// }; //存储地图的名称以及描述等信息，返回给用户
that.isHaveGraticule = mapInfo.grid && mapInfo.grid.graticule;
if (mapInfo.baseLayer && mapInfo.baseLayer.layerType === 'MAPBOXSTYLE') {
// 添加矢量瓦片服务作为底图
that
.addMVTMapLayer(mapInfo, mapInfo.baseLayer, 0)
.then(async () => {
that.createView(mapInfo);
if (!mapInfo.layers || mapInfo.layers.length === 0) {
that.sendMapToUser(0);
} else {
await that.addLayers(mapInfo);
}
that.addGraticule(mapInfo);
})
.catch(function (error) {
that.errorCallback && that.errorCallback(error, 'getMapFaild', that.map);
});
} else {
await that.addBaseMap(mapInfo);
if (!mapInfo.layers || mapInfo.layers.length === 0) {
that.sendMapToUser(0);
} else {
await that.addLayers(mapInfo);
}
that.addGraticule(mapInfo);
}
}
}
/**
* 处理坐标系(底图)
* @private
* @param {string} crs 必传参数，值是webmap2中定义的坐标系，可能是 1、EGSG:xxx 2、WKT string
* @param {string} baseLayerUrl 可选参数，地图的服务地址；用于EPSG：-1 的时候，用于请求iServer提供的wkt
* @return {Object}
*/
async handleCRS(crs, baseLayerUrl) {
let that = this,
handleResult = {};
let newCrs = crs,
action = 'OpenMap';
if (this.isCustomProjection(crs)) {
// 去iServer请求wkt 否则只能预览出图
await FetchRequest.get(that.getRequestUrl(`${baseLayerUrl}/prjCoordSys.wkt`), null, {
withCredentials: that.withCredentials,
withoutFormatSuffix: true
})
.then(function (response) {
return response.text();
})
.then(async function (result) {
if (result.indexOf('<!doctype html>') === -1) {
that.addProjctionFromWKT(result, crs);
handleResult = { action, newCrs };
} else {
throw 'ERROR';
}
})
.catch(function () {
action = 'BrowseMap';
handleResult = { action, newCrs };
});
} else {
if (crs.indexOf('EPSG') === 0 && crs.split(':')[1] <= 0) {
// 自定义坐标系 rest map EPSG:-1(自定义坐标系) 支持编辑
// 未知坐标系情况特殊处理，只支持预览 1、rest map EPSG:-1000(没定义坐标系) 2、wms/wmts EPSG:0 （自定义坐标系）
action = 'BrowseMap';
} else if (crs === 'EPSG:910111' || crs === 'EPSG:910112') {
// 早期数据存在的自定义坐标系 "EPSG:910111": "GCJ02MERCATOR"， "EPSG:910112": "BDMERCATOR"
newCrs = 'EPSG:3857';
} else if (crs === 'EPSG:910101' || crs === 'EPSG:910102') {
// 早期数据存在的自定义坐标系 "EPSG:910101": "GCJ02", "EPSG:910102": "BD",
newCrs = 'EPSG:4326';
} else if (crs.indexOf('EPSG') !== 0) {
// wkt
that.addProjctionFromWKT(newCrs);
newCrs = that.getEpsgInfoFromWKT(crs);
}
handleResult = { action, newCrs };
}
return handleResult;
}
/**
* @private
* @function WebMap.prototype.getScales
* @description 根据级别获取每个级别对应的分辨率
* @param {Object} baseLayerInfo - 底图的图层信息
*/
getScales(baseLayerInfo) {
let scales = [],
resolutions = {},
res,
scale,
resolutionArray = [],
coordUnit = baseLayerInfo.coordUnit || olProj.get(baseLayerInfo.projection).getUnits();
if (!coordUnit) {
coordUnit = this.baseProjection == 'EPSG:3857' ? 'm' : 'degree';
}
if (baseLayerInfo.visibleScales && baseLayerInfo.visibleScales.length > 0) {
//底部设置过固定比例尺，则使用设置的
baseLayerInfo.visibleScales.forEach((scale) => {
let value = 1 / scale;
res = this.getResFromScale(value, coordUnit);
scale = `1:${value}`;
//多此一举转换，因为toLocalString会自动保留小数点后三位，and当第二位小数是0就会保存小数点后两位。所有为了统一。
resolutions[this.formatScale(scale)] = res;
resolutionArray.push(res);
scales.push(scale);
}, this);
} else if (baseLayerInfo.layerType === 'WMTS') {
baseLayerInfo.scales.forEach((scale) => {
res = this.getResFromScale(scale, coordUnit, 90.7);
scale = `1:${scale}`;
//多此一举转换，因为toLocalString会自动保留小数点后三位，and当第二位小数是0就会保存小数点后两位。所有为了统一。
resolutions[this.formatScale(scale)] = res;
resolutionArray.push(res);
scales.push(scale);
}, this);
} else {
let { minZoom = 0, maxZoom = 22 } = baseLayerInfo,
view = this.map.getView();
for (let i = minZoom; i <= maxZoom; i++) {
res = view.getResolutionForZoom(i);
scale = this.getScaleFromRes(res, coordUnit);
if (scales.indexOf(scale) === -1) {
//不添加重复的比例尺
scales.push(scale);
let attr = scale.replace(/,/g, '');
resolutions[attr] = res;
resolutionArray.push(res);
}
}
}
this.scales = scales;
this.resolutions = resolutions;
this.resolutionArray = resolutionArray;
}
/**
* @private
* @function WebMap.prototype.getResFromScale
* @description 将比例尺转换为分辨率
* @param {number} scale - 比例尺
* @param {string} coordUnit - 比例尺单位
* @param {number} dpi
*/
getResFromScale(scale, coordUnit = 'DEGREE', dpi = 96) {
let mpu = metersPerUnit[coordUnit.toUpperCase()];
return (scale * 0.0254) / dpi / mpu;
}
/**
* @private
* @function WebMap.prototype.getScaleFromRes
* @description 将分辨率转换为比例尺
* @param {number} resolution - 分辨率
* @param {string} coordUnit - 比例尺单位
* @param {number} dpi
*/
getScaleFromRes(resolution, coordUnit = 'DEGREE', dpi = 96) {
let scale,
mpu = metersPerUnit[coordUnit.toUpperCase()];
scale = (resolution * dpi * mpu) / 0.0254;
return '1:' + scale;
}
/**
* @private
* @function WebMap.prototype.formatScale
* @description 将有千位符的数字转为普通数字。例如：1,234 => 1234
* @param {number} scale - 比例尺分母
*/
formatScale(scale) {
return scale.replace(/,/g, '');
}
/**
* @private
* @function WebMap.prototype.createSpecLayer
* @description 创建坐标系为0和-1000的图层
* @param {Object} mapInfo - 地图信息
*/
createSpecLayer(mapInfo) {
let me = this,
baseLayerInfo = mapInfo.baseLayer,
url = baseLayerInfo.url,
baseLayerType = baseLayerInfo.layerType;
let extent = [
mapInfo.extent.leftBottom.x,
mapInfo.extent.leftBottom.y,
mapInfo.extent.rightTop.x,
mapInfo.extent.rightTop.y
];
let proj = new olProj.Projection({
extent,
units: 'm',
code: 'EPSG:0'
});
olProj.addProjection(proj);
let options = {
center: mapInfo.center,
level: 0
};
//添加view
me.baseProjection = proj;
let viewOptions = {
center: options.center ? [options.center.x, options.center.y] : [0, 0],
zoom: 0,
projection: proj
};
if (['4', '5'].indexOf(Util.getOlVersion()) < 0) {
// 兼容 ol 4，5，6
viewOptions.multiWorld = true;
}
let view = new View(viewOptions);
me.map.setView(view);
if (me.mapParams) {
me.mapParams.extent = extent;
me.mapParams.projection = mapInfo.projection;
}
if (url && url.indexOf('?token=') > -1) {
//兼容iserver地址有token的情况
me.credentialKey = 'token';
me.credentialValue = mapInfo.baseLayer.credential = url.split('?token=')[1];
url = url.split('?token=')[0];
}
let source;
if (baseLayerType === 'TILE') {
url = this.handleJSONSuffix(url);
FetchRequest.get(me.getRequestUrl(url), null, {
withCredentials: this.withCredentials
})
.then(function (response) {
return response.json();
})
.then(function (result) {
baseLayerInfo.originResult = result;
let serverType = 'IPORTAL',
credential = baseLayerInfo.credential,
keyfix = 'Token',
keyParams = baseLayerInfo.url;
if (
baseLayerInfo.url.indexOf('www.supermapol.com') > -1 ||
baseLayerInfo.url.indexOf('itest.supermapol.com') > -1
) {
keyfix = 'Key';
keyParams = [keyParams];
serverType = 'ONLINE';
}
if (credential) {
SecurityManager[`register${keyfix}`](keyParams, credential);
}
let options = {
serverType,
url,
tileGrid: TileSuperMapRest.optionsFromMapJSON(url, result).tileGrid
};
if (url && !CommonUtil.isInTheSameDomain(url) && !this.isIportalProxyServiceUrl(url)) {
options.tileProxy = me.server + 'apps/viewer/getUrlResource.png?url=';
}
source = new TileSuperMapRest(options);
me.addSpecToMap(source);
})
.catch(function (error) {
me.errorCallback && me.errorCallback(error, 'getMapFaild', me.map);
});
} else if (baseLayerType === 'WMS') {
source = me.createWMSSource(baseLayerInfo);
me.addSpecToMap(source);
} else if (baseLayerType === 'WMTS') {
FetchRequest.get(me.getRequestUrl(url, true), null, {
withCredentials: this.withCredentials
})
.then(function (response) {
return response.text();
})
.then(function (capabilitiesText) {
baseLayerInfo.extent = [
mapInfo.extent.leftBottom.x,
mapInfo.extent.leftBottom.y,
mapInfo.extent.rightTop.x,
mapInfo.extent.rightTop.y
];
baseLayerInfo.scales = me.getWMTSScales(baseLayerInfo.tileMatrixSet, capabilitiesText);
baseLayerInfo.dpi = dpiConfig.iServerWMTS;
source = me.createWMTSSource(baseLayerInfo);
me.addSpecToMap(source);
})
.catch(function (error) {
me.errorCallback && me.errorCallback(error, 'getMapFaild', me.map);
});
} else {
me.errorCallback &&
me.errorCallback(
{ type: 'Not support CS', errorMsg: `Not support CS: ${baseLayerType}` },
'getMapFaild',
me.map
);
}
view && view.fit(extent);
}
/**
* @private
* @function WebMap.prototype.addSpecToMap
* @description 将坐标系为0和-1000的图层添加到地图上
* @param {Object} mapInfo - 地图信息
*/
addSpecToMap(source) {
let layer = new olLayer.Tile({
source: source,
zIndex: 0
});
this.map.addLayer(layer);
this.sendMapToUser(0);
}
/**
* @private
* @function WebMap.prototype.getWMTSScales
* @description 获取wmts的比例尺
* @param {Object} identifier - 图层存储的标识信息
* @param {Object} capabilitiesText - wmts信息
*/
getWMTSScales(identifier, capabilitiesText) {
const format = new WMTSCapabilities();
let capabilities = format.read(capabilitiesText);
let content = capabilities.Contents;
let tileMatrixSet = content.TileMatrixSet;
let scales = [];
for (let i = 0; i < tileMatrixSet.length; i++) {
if (tileMatrixSet[i].Identifier === identifier) {
for (let h = 0; h < tileMatrixSet[i].TileMatrix.length; h++) {
scales.push(tileMatrixSet[i].TileMatrix[h].ScaleDenominator);
}
break;
}
}
return scales;
}
/**
* @private
* @function WebMap.prototype.addBaseMap
* @description 添加底图
* @param {string} mapInfo - 请求地图的url
*/
async addBaseMap(mapInfo) {
let { baseLayer } = mapInfo,
layerType = baseLayer.layerType;
//底图，使用默认的配置，不用存储的
if (layerType !== 'TILE' && layerType !== 'WMS' && layerType !== 'WMTS') {
this.getInternetMapInfo(baseLayer);
} else if (layerType === 'WMTS') {
// 通过请求完善信息
await this.getWmtsInfo(baseLayer);
} else if (layerType === 'TILE') {
await this.getTileInfo(baseLayer);
} else if (layerType === 'WMS') {
await this.getWmsInfo(baseLayer);
}
baseLayer.projection = mapInfo.projection;
if (!baseLayer.extent) {
baseLayer.extent = [
mapInfo.extent.leftBottom.x,
mapInfo.extent.leftBottom.y,
mapInfo.extent.rightTop.x,
mapInfo.extent.rightTop.y
];
}
this.createView(mapInfo);
let layer = this.createBaseLayer(baseLayer, 0, null, null, true);
//底图增加图层类型，DV分享需要用它来识别版权信息
layer.setProperties({
layerType: layerType
});
this.map.addLayer(layer);
if (this.mapParams) {
this.mapParams.extent = baseLayer.extent;
this.mapParams.projection = mapInfo.projection;
}
if (baseLayer.labelLayerVisible) {
//存在天地图路网
let labelLayer = new olLayer.Tile({
source: this.createTiandituSource(baseLayer.layerType, mapInfo.projection, true),
zIndex: baseLayer.zIndex || 1,
visible: baseLayer.visible
});
this.map.addLayer(labelLayer);
// 挂载带baseLayer上，便于删除
baseLayer.labelLayer = labelLayer;
}
this.limitScale(mapInfo, baseLayer);
}
validScale(scale) {
if (!scale) {
return false;
}
const scaleNum = scale.split(':')[1];
if (!scaleNum) {
return false;
}
const res = 1 / +scaleNum;
if (res === Infinity || res >= 1) {
return false;
}
return true;
}
limitScale(mapInfo, baseLayer) {
if (this.validScale(mapInfo.minScale) && this.validScale(mapInfo.maxScale)) {
let visibleScales, minScale, maxScale;
if (baseLayer.layerType === 'WMTS') {
visibleScales = baseLayer.scales;
minScale = +mapInfo.minScale.split(':')[1];
maxScale = +mapInfo.maxScale.split(':')[1];
} else {
const scales = this.scales.map((scale) => {
return 1 / scale.split(':')[1];
});
if (Array.isArray(baseLayer.visibleScales) && baseLayer.visibleScales.length && baseLayer.visibleScales) {
visibleScales = baseLayer.visibleScales;
} else {
visibleScales = scales;
}
minScale = 1 / +mapInfo.minScale.split(':')[1];
maxScale = 1 / +mapInfo.maxScale.split(':')[1];
}
const minVisibleScale = this.findNearest(visibleScales, minScale);
const maxVisibleScale = this.findNearest(visibleScales, maxScale);
let minZoom = visibleScales.indexOf(minVisibleScale);
let maxZoom = visibleScales.indexOf(maxVisibleScale);
if (minZoom > maxZoom) {
[minZoom, maxZoom] = [maxZoom, minZoom];
}
if (minZoom !== 0 || maxZoom !== visibleScales.length - 1) {
this.map.setView(
new View(
Object.assign({}, this.map.getView().options_, {
maxResolution: undefined,
minResolution: undefined,
minZoom,
maxZoom,
constrainResolution: false
})
)
);
this.map.addInteraction(
new MouseWheelZoom({
constrainResolution: true
})
);
}
}
}
parseNumber(scaleStr) {
return Number(scaleStr.split(':')[1]);
}
findNearest(scales, target) {
let resultIndex = 0;
let targetScaleD = target;
for (let i = 1, len = scales.length; i < len; i++) {
if (Math.abs(scales[i] - targetScaleD) < Math.abs(scales[resultIndex] - targetScaleD)) {
resultIndex = i;
}
}
return scales[resultIndex];
}
/**
* @private
* @function WebMap.prototype.addMVTMapLayer
* @description 添加地图服务mapboxstyle图层
* @param {Object} mapInfo - 地图信息
* @param {Object} layerInfo - mapboxstyle图层信息
*/
addMVTMapLayer(mapInfo, layerInfo, zIndex) {
layerInfo.zIndex = zIndex;
// 获取地图详细信息
return this.getMapboxStyleLayerInfo(mapInfo, layerInfo)
.then((msLayerInfo) => {
// 创建图层
return this.createMVTLayer(msLayerInfo).then((layer) => {
let layerID = Util.newGuid(8);
if (layerInfo.name) {
layer.setProperties({
name: layerInfo.name,
layerID: layerID,
layerType: 'VECTOR_TILE'
});
}
layerInfo.visibleScale && this.setVisibleScales(layer, layerInfo.visibleScale);
//否则没有ID，对不上号
layerInfo.layer = layer;
layerInfo.layerID = layerID;
this.map.addLayer(layer);
});
})
.catch(function (error) {
throw error;
});
}
/**
* @private
* @function WebMap.prototype.createView
* @description 创建地图视图
* @param {Object} options - 关于地图的信息
*/
createView(options) {
let oldcenter = options.center,
zoom = options.level !== undefined ? options.level : 1,
maxZoom = options.maxZoom || 22,
extent,
projection = this.baseProjection;
let center = [];
for (let key in oldcenter) {
center.push(oldcenter[key]);
}
if (center.length === 0) {
//兼容wms
center = [0, 0];
}
//与DV一致用底图的默认范围，不用存储的范围。否则会导致地图拖不动
this.baseLayerExtent = extent = options.baseLayer && options.baseLayer.extent;
if (this.mapParams) {
this.mapParams.extent = extent;
this.mapParams.projection = projection;
}
//当前中心点不在extent内,就用extent的中心点 todo
!containsCoordinate(extent, center) && (center = getCenter(extent));
// 计算当前最大分辨率
let baseLayer = options.baseLayer;
let maxResolution;
if (
(baseLayer.visibleScales && baseLayer.visibleScales.length > 0) ||
(baseLayer.scales && baseLayer.scales.length > 0)
) {
//底图有固定比例尺，就直接获取。不用view计算
this.getScales(baseLayer);
} else if (options.baseLayer && extent && extent.length === 4) {
let width = extent[2] - extent[0];
let height = extent[3] - extent[1];
let maxResolution1 = width / 512;
let maxResolution2 = height / 512;
maxResolution = Math.max(maxResolution1, maxResolution2);
}
// if(options.baseLayer.visibleScales && options.baseLayer.visibleScales.length > 0){
// maxZoom = options.baseLayer.visibleScales.length;
// }
this.map.setView(new View({ zoom, center, projection, maxZoom, maxResolution }));
let viewOptions = {};
if (
(baseLayer.scales && baseLayer.scales.length > 0 && baseLayer.layerType === 'WMTS') ||
(this.resolutionArray && this.resolutionArray.length > 0)
) {
viewOptions = { zoom, center, projection, resolutions: this.resolutionArray, maxZoom };
} else if (baseLayer.layerType === 'WMTS') {
viewOptions = { zoom, center, projection, maxZoom };
this.getScales(baseLayer);
} else {
viewOptions = { zoom, center, projection, maxResolution, maxZoom };
this.getScales(baseLayer);
}
if (['4', '5'].indexOf(Util.getOlVersion()) < 0) {
// 兼容 ol 4，5，6
viewOptions.multiWorld = true;
viewOptions.showFullExtent = true;
viewOptions.enableRotation = false;
viewOptions.constrainResolution = true; //设置此参数，是因为需要显示整数级别。为了可视比例尺中包含当前比例尺
}
this.map.setView(new View(viewOptions));
if (options.visibleExtent) {
const view = this.map.getView();
const resolution = view.getResolutionForExtent(options.visibleExtent, this.map.getSize());
view.setResolution(resolution);
view.setCenter(getCenter(options.visibleExtent));
}
}
/**
* @private
* @function WebMap.prototype.createBaseLayer
* @description 创建矢量图层，包括底图及其叠加的矢量图层
* @param {Object} layerInfo - 关于地图的信息
* @param {number} index - 当前图层在地图中的index
* @param {boolean} isCallBack - 是否调用回调函数
* @param {scope} {Object} this对象
*/
createBaseLayer(layerInfo, index, isCallBack, scope, isBaseLayer) {
let source,
that = this;
if (scope) {
// 解决异步回调
that = scope;
}
let layerType = layerInfo.layerType; //底图和rest地图兼容
if (
layerType.indexOf('TIANDITU_VEC') > -1 ||
layerType.indexOf('TIANDITU_IMG') > -1 ||
layerType.indexOf('TIANDITU_TER') > -1
) {
layerType = layerType.substr(0, 12);
}
switch (layerType) {
case 'TIANDITU_VEC':
case 'TIANDITU_IMG':
case 'TIANDITU_TER':
source = this.createTiandituSource(layerType, layerInfo.projection);
break;
case 'BAIDU':
source = this.createBaiduSource();
break;
case 'BING':
source = this.createBingSource();
break;
case 'WMS':
source = this.createWMSSource(layerInfo);
break;
case 'WMTS':
source = that.createWMTSSource(layerInfo);
break;
case 'TILE':
case 'SUPERMAP_REST':
source = that.createDynamicTiledSource(layerInfo, isBaseLayer);
break;
case 'CLOUD':
case 'CLOUD_BLACK':
case 'OSM':
case 'JAPAN_ORT':
case 'JAPAN_RELIEF':
case 'JAPAN_PALE':
case 'JAPAN_STD':
case 'GOOGLE_CN':
case 'GOOGLE':
source = this.createXYZSource(layerInfo);
break;
default:
break;
}
var layer = new olLayer.Tile({
source: source,
zIndex: layerInfo.zIndex || 1,
visible: layerInfo.visible
});
var layerID = Util.newGuid(8);
if (layerInfo.name) {
layer.setProperties({
name: layerInfo.name,
layerID: layerID
});
}
if (layerInfo.visible === undefined || layerInfo.visible === null) {
layerInfo.visible = true;
}
layer.setVisible(layerInfo.visible);