* @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
(mapInfo)
| 537 | * @param {Object} mapInfo - 地图信息 |
| 538 | */ |
| 539 | createSpecLayer(mapInfo) { |
| 540 | let me = this, |
| 541 | baseLayerInfo = mapInfo.baseLayer, |
| 542 | url = baseLayerInfo.url, |
| 543 | baseLayerType = baseLayerInfo.layerType; |
| 544 | let extent = [ |
| 545 | mapInfo.extent.leftBottom.x, |
| 546 | mapInfo.extent.leftBottom.y, |
| 547 | mapInfo.extent.rightTop.x, |
| 548 | mapInfo.extent.rightTop.y |
| 549 | ]; |
| 550 | let proj = new olProj.Projection({ |
| 551 | extent, |
| 552 | units: 'm', |
| 553 | code: 'EPSG:0' |
| 554 | }); |
| 555 | olProj.addProjection(proj); |
| 556 | let options = { |
| 557 | center: mapInfo.center, |
| 558 | level: 0 |
| 559 | }; |
| 560 | //添加view |
| 561 | me.baseProjection = proj; |
| 562 | let viewOptions = { |
| 563 | center: options.center ? [options.center.x, options.center.y] : [0, 0], |
| 564 | zoom: 0, |
| 565 | projection: proj |
| 566 | }; |
| 567 | if (['4', '5'].indexOf(Util.getOlVersion()) < 0) { |
| 568 | // 兼容 ol 4，5，6 |
| 569 | viewOptions.multiWorld = true; |
| 570 | } |
| 571 | let view = new View(viewOptions); |
| 572 | me.map.setView(view); |
| 573 | if (me.mapParams) { |
| 574 | me.mapParams.extent = extent; |
| 575 | me.mapParams.projection = mapInfo.projection; |
| 576 | } |
| 577 | if (url && url.indexOf('?token=') > -1) { |
| 578 | //兼容iserver地址有token的情况 |
| 579 | me.credentialKey = 'token'; |
| 580 | me.credentialValue = mapInfo.baseLayer.credential = url.split('?token=')[1]; |
| 581 | url = url.split('?token=')[0]; |
| 582 | } |
| 583 | |
| 584 | let source; |
| 585 | if (baseLayerType === 'TILE') { |
| 586 | url = this.handleJSONSuffix(url); |
| 587 | FetchRequest.get(me.getRequestUrl(url), null, { |
| 588 | withCredentials: me.isCredentail(url) |
| 589 | }) |
| 590 | .then(function (response) { |
| 591 | return response.json(); |
| 592 | }) |
| 593 | .then(function (result) { |
| 594 | baseLayerInfo.originResult = result; |
| 595 | let serverType = 'IPORTAL', |
| 596 | credential = baseLayerInfo.credential, |
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