angular-cesium
Version:
Angular library for working with Cesium.
110 lines • 17.4 kB
JavaScript
import { BasicDrawerService } from '../basic-drawer/basic-drawer.service';
import { GraphicsType } from './enums/graphics-type.enum';
import { OptimizedEntityCollection } from './optimized-entity-collection';
/**
* General primitives drawer responsible of drawing Cesium primitives.
* Drawers the handle Cesium primitives extend it.
*/
export class EntitiesDrawerService extends BasicDrawerService {
constructor(cesiumService, graphicsType, defaultOptions = {
collectionMaxSize: -1,
collectionSuspensionTime: -1,
collectionsNumber: 1,
}) {
super();
this.cesiumService = cesiumService;
this.graphicsType = graphicsType;
this.defaultOptions = defaultOptions;
this.entityCollections = new Map();
this.graphicsTypeName = GraphicsType[this.graphicsType];
// Fix bad enum compilation
for (const i in GraphicsType) {
if (GraphicsType[i] === this.graphicsType) {
this.graphicsTypeName = i;
}
}
}
getFreeEntitiesCollection() {
let freeEntityCollection = null;
this.entityCollections.forEach(entityCollection => {
if (entityCollection.isFree()) {
freeEntityCollection = entityCollection;
}
});
return freeEntityCollection;
}
init(options) {
const finalOptions = options || this.defaultOptions;
const dataSources = [];
for (let i = 0; i < finalOptions.collectionsNumber; i++) {
const dataSource = new Cesium.CustomDataSource(this.graphicsTypeName);
dataSources.push(dataSource);
this.cesiumService.getViewer().dataSources.add(dataSource);
this.entityCollections.set(dataSource.entities, new OptimizedEntityCollection(dataSource.entities, finalOptions.collectionMaxSize, finalOptions.collectionSuspensionTime));
}
return dataSources;
}
add(cesiumProps) {
const optimizedEntityCollection = this.getFreeEntitiesCollection();
if (optimizedEntityCollection === null) {
throw new Error('No more free entity collections');
}
const entityObject = {
position: cesiumProps.position !== undefined ? cesiumProps.position : undefined,
description: cesiumProps.description !== undefined ? cesiumProps.description : undefined,
orientation: cesiumProps.orientation !== undefined ? cesiumProps.orientation : undefined,
viewFrom: cesiumProps.viewFrom !== undefined ? cesiumProps.viewFrom : undefined,
[this.graphicsTypeName]: cesiumProps,
};
if (cesiumProps.name !== undefined) {
entityObject.name = cesiumProps.name;
}
if (cesiumProps.availability !== undefined) {
entityObject.availability = cesiumProps.availability;
}
return optimizedEntityCollection.add(entityObject);
}
update(entity, cesiumProps) {
this.suspendEntityCollection(entity);
if (entity.position instanceof Cesium.CallbackProperty) {
if (entity.position._isConstant) {
entity.position = cesiumProps.position;
}
}
entity.position = cesiumProps.position !== undefined ? cesiumProps.position : undefined;
entity.name = cesiumProps.name !== undefined ? cesiumProps.name : entity.name;
entity.description = cesiumProps.description !== undefined ? cesiumProps.description : entity.description;
entity.orientation = cesiumProps.orientation !== undefined ? cesiumProps.orientation : entity.orientation;
entity.viewFrom = cesiumProps.viewFrom !== undefined ? cesiumProps.viewFrom : entity.viewFrom;
entity.availability = cesiumProps.availability !== undefined ? cesiumProps.availability : cesiumProps.availability;
if (this._propsAssigner) {
this._propsAssigner(entity[this.graphicsTypeName], cesiumProps);
}
else {
Object.assign(entity[this.graphicsTypeName], cesiumProps);
}
}
remove(entity) {
const optimizedEntityCollection = this.entityCollections.get(entity.entityCollection);
optimizedEntityCollection.remove(entity);
}
removeAll() {
this.entityCollections.forEach(entityCollection => {
entityCollection.removeAll();
});
}
setShow(showValue) {
this.entityCollections.forEach(entityCollection => {
entityCollection.setShow(showValue);
});
}
suspendEntityCollection(entity) {
const id = entity.entityCollection;
if (!this.entityCollections.has(id)) {
throw new Error('No EntityCollection for entity.entityCollection');
}
const entityCollection = this.entityCollections.get(id);
entityCollection.suspend();
}
}
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{ BasicDrawerService } from '../basic-drawer/basic-drawer.service';\nimport { CesiumService } from '../../cesium/cesium.service';\nimport { GraphicsType } from './enums/graphics-type.enum';\nimport { EntitiesDrawerOptions } from '../../../models/entities-drawer-options';\nimport { OptimizedEntityCollection } from './optimized-entity-collection';\n\n/**\n *  General primitives drawer responsible of drawing Cesium primitives.\n *  Drawers the handle Cesium primitives extend it.\n */\n\nexport class EntitiesDrawerService extends BasicDrawerService {\n  private entityCollections = new Map<any, OptimizedEntityCollection>();\n  private graphicsTypeName: string;\n\n  constructor(\n    private cesiumService: CesiumService,\n    private graphicsType: GraphicsType,\n    private defaultOptions: EntitiesDrawerOptions = {\n      collectionMaxSize: -1,\n      collectionSuspensionTime: -1,\n      collectionsNumber: 1,\n    },\n  ) {\n    super();\n    this.graphicsTypeName = GraphicsType[this.graphicsType];\n\n    // Fix bad enum compilation\n    for (const i in GraphicsType) {\n      if (GraphicsType[i] as any === this.graphicsType) {\n        this.graphicsTypeName = i;\n      }\n    }\n  }\n\n  private getFreeEntitiesCollection(): OptimizedEntityCollection {\n    let freeEntityCollection = null;\n    this.entityCollections.forEach(entityCollection => {\n      if (entityCollection.isFree()) {\n        freeEntityCollection = entityCollection;\n      }\n    });\n\n    return freeEntityCollection;\n  }\n\n  init(options?: EntitiesDrawerOptions) {\n    const finalOptions = options || this.defaultOptions;\n    const dataSources = [];\n    for (let i = 0; i < finalOptions.collectionsNumber; i++) {\n      const dataSource = new Cesium.CustomDataSource(this.graphicsTypeName);\n      dataSources.push(dataSource);\n      this.cesiumService.getViewer().dataSources.add(dataSource);\n      this.entityCollections.set(\n        dataSource.entities,\n        new OptimizedEntityCollection(dataSource.entities, finalOptions.collectionMaxSize, finalOptions.collectionSuspensionTime),\n      );\n    }\n\n    return dataSources;\n  }\n\n  add(cesiumProps: any): any {\n    const optimizedEntityCollection = this.getFreeEntitiesCollection();\n    if (optimizedEntityCollection === null) {\n      throw new Error('No more free entity collections');\n    }\n\n    const entityObject = {\n      position: cesiumProps.position !== undefined ? cesiumProps.position : undefined,\n      description: cesiumProps.description !== undefined ? cesiumProps.description : undefined,\n      orientation: cesiumProps.orientation !== undefined ? cesiumProps.orientation : undefined,\n      viewFrom: cesiumProps.viewFrom !== undefined ? cesiumProps.viewFrom : undefined,\n      [this.graphicsTypeName]: cesiumProps,\n    };\n\n    if (cesiumProps.name !== undefined) {\n      entityObject.name = cesiumProps.name;\n    }\n    if (cesiumProps.availability !== undefined) {\n      entityObject.availability = cesiumProps.availability;\n    }\n\n    return optimizedEntityCollection.add(entityObject);\n  }\n\n  update(entity: any, cesiumProps: any) {\n    this.suspendEntityCollection(entity);\n\n    if (entity.position instanceof Cesium.CallbackProperty) {\n      if (entity.position._isConstant) {\n        entity.position = cesiumProps.position;\n      }\n    }\n    entity.position = cesiumProps.position !== undefined ? cesiumProps.position : undefined;\n    entity.name = cesiumProps.name !== undefined ? cesiumProps.name : entity.name;\n    entity.description = cesiumProps.description !== undefined ? cesiumProps.description : entity.description;\n    entity.orientation = cesiumProps.orientation !== undefined ? cesiumProps.orientation : entity.orientation;\n    entity.viewFrom = cesiumProps.viewFrom !== undefined ? cesiumProps.viewFrom : entity.viewFrom;\n    entity.availability = cesiumProps.availability !== undefined ? cesiumProps.availability : cesiumProps.availability;\n\n    if (this._propsAssigner) {\n      this._propsAssigner(entity[this.graphicsTypeName], cesiumProps);\n    } else {\n      Object.assign(entity[this.graphicsTypeName], cesiumProps);\n    }\n  }\n\n  remove(entity: any) {\n    const optimizedEntityCollection = this.entityCollections.get(entity.entityCollection);\n    optimizedEntityCollection.remove(entity);\n  }\n\n  removeAll() {\n    this.entityCollections.forEach(entityCollection => {\n      entityCollection.removeAll();\n    });\n  }\n\n  setShow(showValue: boolean) {\n    this.entityCollections.forEach(entityCollection => {\n      entityCollection.setShow(showValue);\n    });\n  }\n\n  private suspendEntityCollection(entity: any) {\n    const id = entity.entityCollection;\n    if (!this.entityCollections.has(id)) {\n      throw new Error('No EntityCollection for entity.entityCollection');\n    }\n\n    const entityCollection = this.entityCollections.get(id);\n    entityCollection.suspend();\n  }\n}\n\n"]}