iceye-angular-cesium-fork
Version:
Angular library for working with Cesium.
137 lines • 17.1 kB
JavaScript
import { Component, Input } from '@angular/core';
import { CesiumService } from '../../services/cesium/cesium.service';
import { Checker } from '../../utils/checker';
import { MapLayerProviderOptions } from '../../models';
/**
* This component is used for adding a map provider service to the map (ac-map)
* options according to selected map provider MapLayerProviderOptions enum.
* additional setting can be done with cesium imageryLayer (exposed as class member)
* check out: https://cesiumjs.org/Cesium/Build/Documentation/ImageryLayer.html
* and: https://cesiumjs.org/Cesium/Build/Documentation/ImageryLayerCollection.html
*
*
* __Usage :__
* ```
* <ac-map-layer-provider [options]="optionsObject" [provider]="myProvider">
* </ac-map-layer-provider>
* ```
*/
export class AcMapLayerProviderComponent {
constructor(cesiumService) {
this.cesiumService = cesiumService;
/**
* refer to cesium docs for details https://cesiumjs.org/Cesium/Build/Documentation/ImageryProvider.html
*/
this.options = {};
/**
* the provider
*/
this.provider = MapLayerProviderOptions.OFFLINE;
/**
* show (optional) - Determines if the map layer is shown.
*/
this.show = true;
/**
* The alpha blending value of this layer: 0.0 to 1.0
*/
this.alpha = 1.0;
/**
* The brightness of this layer: 0.0 to 1.0
*/
this.brightness = 1.0;
/**
* The contrast of this layer: 0.0 to 1.0
*/
this.contrast = 1.0;
this.imageryLayersCollection = this.cesiumService.getScene().imageryLayers;
}
createOfflineMapProvider() {
return Cesium.createTileMapServiceImageryProvider({
url: Cesium.buildModuleUrl('Assets/Textures/NaturalEarthII')
});
}
ngOnInit() {
if (!Checker.present(this.options.url) && this.provider !== MapLayerProviderOptions.OFFLINE) {
throw new Error('options must have a url');
}
switch (this.provider) {
case MapLayerProviderOptions.WebMapService:
case MapLayerProviderOptions.WebMapTileService:
case MapLayerProviderOptions.ArcGisMapServer:
case MapLayerProviderOptions.SingleTileImagery:
case MapLayerProviderOptions.BingMaps:
case MapLayerProviderOptions.GoogleEarthEnterpriseMaps:
case MapLayerProviderOptions.MapBox:
case MapLayerProviderOptions.UrlTemplateImagery:
case MapLayerProviderOptions.MapTileService:
case MapLayerProviderOptions.OpenStreetMap:
this.layerProvider = new this.provider(this.options);
break;
case MapLayerProviderOptions.OFFLINE:
this.layerProvider = this.createOfflineMapProvider();
break;
default:
console.log('ac-map-layer-provider: [provider] wasn\'t found. setting OFFLINE provider as default');
this.layerProvider = this.createOfflineMapProvider();
break;
}
if (this.show) {
this.imageryLayer = this.imageryLayersCollection.addImageryProvider(this.layerProvider, this.index);
this.imageryLayer.alpha = this.alpha;
this.imageryLayer.contrast = this.contrast;
this.imageryLayer.brightness = this.brightness;
}
}
ngOnChanges(changes) {
if (changes['show'] && !changes['show'].isFirstChange()) {
const showValue = changes['show'].currentValue;
if (showValue) {
if (this.imageryLayer) {
this.imageryLayersCollection.add(this.imageryLayer, this.index);
}
else {
this.imageryLayer = this.imageryLayersCollection.addImageryProvider(this.layerProvider, this.index);
this.imageryLayer.alpha = this.alpha;
this.imageryLayer.contrast = this.contrast;
this.imageryLayer.brightness = this.brightness;
}
}
else if (this.imageryLayer) {
this.imageryLayersCollection.remove(this.imageryLayer, false);
}
}
if (changes['alpha'] && !changes['alpha'].isFirstChange() && this.imageryLayer) {
this.imageryLayer.alpha = this.alpha;
}
if (changes['contrast'] && !changes['contrast'].isFirstChange() && this.imageryLayer) {
this.imageryLayer.contrast = this.contrast;
}
if (changes['brightness'] && !changes['brightness'].isFirstChange() && this.imageryLayer) {
this.imageryLayer.brightness = this.brightness;
}
}
ngOnDestroy() {
if (this.imageryLayer) {
this.imageryLayersCollection.remove(this.imageryLayer, true);
}
}
}
AcMapLayerProviderComponent.decorators = [
{ type: Component, args: [{
selector: 'ac-map-layer-provider',
template: ''
},] }
];
AcMapLayerProviderComponent.ctorParameters = () => [
{ type: CesiumService }
];
AcMapLayerProviderComponent.propDecorators = {
options: [{ type: Input }],
provider: [{ type: Input }],
index: [{ type: Input }],
show: [{ type: Input }],
alpha: [{ type: Input }],
brightness: [{ type: Input }],
contrast: [{ type: Input }]
};
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The index to add the layer at. If omitted, the layer will added on top of all existing layers.\n   */\n  @Input()\n  index: Number;\n\n  /**\n   * show (optional) - Determines if the map layer is shown.\n   */\n  @Input()\n  show = true;\n\n  /**\n   * The alpha blending value of this layer: 0.0 to 1.0\n   */\n  @Input()\n  alpha = 1.0;\n\n  /**\n   * The brightness of this layer: 0.0 to 1.0\n   */\n  @Input()\n  brightness = 1.0;\n\n  /**\n   * The contrast of this layer: 0.0 to 1.0\n   */\n  @Input()\n  contrast = 1.0;\n\n  public imageryLayer: any;\n  public imageryLayersCollection: any;\n  public layerProvider: any;\n\n  constructor(private cesiumService: CesiumService) {\n    this.imageryLayersCollection = this.cesiumService.getScene().imageryLayers;\n  }\n\n  private createOfflineMapProvider() {\n    return Cesium.createTileMapServiceImageryProvider({\n      url: Cesium.buildModuleUrl('Assets/Textures/NaturalEarthII')\n    });\n  }\n\n  ngOnInit() {\n    if (!Checker.present(this.options.url) && this.provider !== MapLayerProviderOptions.OFFLINE) {\n      throw new Error('options must have a url');\n    }\n    switch (this.provider) {\n      case MapLayerProviderOptions.WebMapService:\n      case MapLayerProviderOptions.WebMapTileService:\n      case MapLayerProviderOptions.ArcGisMapServer:\n      case MapLayerProviderOptions.SingleTileImagery:\n      case MapLayerProviderOptions.BingMaps:\n      case MapLayerProviderOptions.GoogleEarthEnterpriseMaps:\n      case MapLayerProviderOptions.MapBox:\n      case MapLayerProviderOptions.UrlTemplateImagery:\n      case MapLayerProviderOptions.MapTileService:\n      case MapLayerProviderOptions.OpenStreetMap:\n        this.layerProvider = new this.provider(this.options);\n        break;\n      case MapLayerProviderOptions.OFFLINE:\n        this.layerProvider = this.createOfflineMapProvider();\n        break;\n      default:\n        console.log('ac-map-layer-provider: [provider] wasn\\'t found. setting OFFLINE provider as default');\n        this.layerProvider = this.createOfflineMapProvider();\n        break;\n    }\n    if (this.show) {\n      this.imageryLayer = this.imageryLayersCollection.addImageryProvider(this.layerProvider, this.index);\n      this.imageryLayer.alpha = this.alpha;\n      this.imageryLayer.contrast = this.contrast;\n      this.imageryLayer.brightness = this.brightness;\n    }\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    if (changes['show'] && !changes['show'].isFirstChange()) {\n      const showValue = changes['show'].currentValue;\n      if (showValue) {\n        if (this.imageryLayer) {\n          this.imageryLayersCollection.add(this.imageryLayer, this.index);\n        } else {\n          this.imageryLayer = this.imageryLayersCollection.addImageryProvider(this.layerProvider, this.index);\n          this.imageryLayer.alpha = this.alpha;\n          this.imageryLayer.contrast = this.contrast;\n          this.imageryLayer.brightness = this.brightness;\n        }\n      } else if (this.imageryLayer) {\n        this.imageryLayersCollection.remove(this.imageryLayer, false);\n      }\n    }\n\n    if (changes['alpha'] && !changes['alpha'].isFirstChange() && this.imageryLayer) {\n      this.imageryLayer.alpha = this.alpha;\n    }\n    if (changes['contrast'] && !changes['contrast'].isFirstChange() && this.imageryLayer) {\n      this.imageryLayer.contrast = this.contrast;\n    }\n    if (changes['brightness'] && !changes['brightness'].isFirstChange() && this.imageryLayer) {\n      this.imageryLayer.brightness = this.brightness;\n    }\n  }\n\n  ngOnDestroy(): void {\n    if (this.imageryLayer) {\n      this.imageryLayersCollection.remove(this.imageryLayer, true);\n    }\n  }\n}\n"]}