@eliorar/angular-cesium
Version:
Angular library for working with Cesium.
317 lines • 45.8 kB
JavaScript
import { publish, tap } from 'rxjs/operators';
import { Injectable } from '@angular/core';
import { Color } from 'cesium';
import { BehaviorSubject, Subject } from 'rxjs';
import { CesiumEvent } from '../../../../angular-cesium/services/map-events-mananger/consts/cesium-event.enum';
import { PickOptions } from '../../../../angular-cesium/services/map-events-mananger/consts/pickOptions.enum';
import { EditModes } from '../../../models/edit-mode.enum';
import { EditActions } from '../../../models/edit-actions.enum';
import { EditPoint } from '../../../models/edit-point';
import { generateKey } from '../../utils';
import * as i0 from "@angular/core";
export const DEFAULT_POINT_OPTIONS = {
addLastPointEvent: CesiumEvent.LEFT_CLICK,
removePointEvent: CesiumEvent.RIGHT_CLICK,
dragPointEvent: CesiumEvent.LEFT_CLICK_DRAG,
allowDrag: true,
pointProps: {
color: Color.WHITE.withAlpha(0.95),
outlineColor: Color.BLACK.withAlpha(0.5),
outlineWidth: 1,
pixelSize: 10,
show: true,
disableDepthTestDistance: Number.POSITIVE_INFINITY,
},
};
/**
* Service for creating editable point
*
* * You must provide `PointsEditorService` yourself.
* PolygonsEditorService works together with `<points-editor>` component. Therefor you need to create `<points-editor>`
* for each `PointsEditorService`, And of course somewhere under `<ac-map>`/
*
* + `create` for starting a creation of the shape over the map. Returns a extension of `PointEditorObservable`.
* + `edit` for editing shape over the map starting from a given positions. Returns an extension of `PointEditorObservable`.
* + To stop editing call `dsipose()` from the `PointEditorObservable` you get back from `create()` \ `edit()`.
*
* **Labels over editted shapes**
* Angular Cesium allows you to draw labels over a shape that is being edited with one of the editors.
* To add label drawing logic to your editor use the function `setLabelsRenderFn()` that is defined on the
* `PointEditorObservable` that is returned from calling `create()` \ `edit()` of one of the editor services.
* `setLabelsRenderFn()` - receives a callback that is called every time the shape is redrawn
* (except when the shape is being dragged). The callback is called with the last shape state and with an array of the current labels.
* The callback should return type `LabelProps[]`.
* You can also use `updateLabels()` to pass an array of labels of type `LabelProps[]` to be drawn.
*
* usage:
* ```typescript
* // Start creating point
* const editing$ = pointEditorService.create();
* this.editing$.subscribe(editResult => {
* console.log(editResult.positions);
* });
*
* // Or edit point from existing point cartesian3 positions
* const editing$ = this.pointEditor.edit(initialPos);
*
* ```
*/
export class PointsEditorService {
constructor() {
this.updateSubject = new Subject();
this.updatePublisher = publish()(this.updateSubject); // TODO maybe not needed
this.observablesMap = new Map();
}
init(mapEventsManager, coordinateConverter, cameraService, pointManager, cesiumViewer) {
this.mapEventsManager = mapEventsManager;
this.coordinateConverter = coordinateConverter;
this.cameraService = cameraService;
this.pointManager = pointManager;
this.updatePublisher.connect();
this.cesiumScene = cesiumViewer.getScene();
}
onUpdate() {
return this.updatePublisher;
}
screenToPosition(cartesian2) {
const cartesian3 = this.coordinateConverter.screenToCartesian3(cartesian2);
// If cartesian3 is undefined then the point inst on the globe
if (cartesian3) {
const ray = this.cameraService.getCamera().getPickRay(cartesian2);
return this.cesiumScene.globe.pick(ray, this.cesiumScene);
}
return cartesian3;
}
create(options = DEFAULT_POINT_OPTIONS, eventPriority = 100) {
const id = generateKey();
const pointOptions = this.setOptions(options);
const clientEditSubject = new BehaviorSubject({
id,
editAction: null,
editMode: EditModes.CREATE
});
let finishedCreate = false;
this.updateSubject.next({
id,
editMode: EditModes.CREATE,
editAction: EditActions.INIT,
pointOptions: pointOptions,
});
const finishCreation = (position) => {
return this.switchToEditMode(id, clientEditSubject, position, eventPriority, pointOptions, editorObservable, true);
};
const mouseMoveRegistration = this.mapEventsManager.register({
event: CesiumEvent.MOUSE_MOVE,
pick: PickOptions.NO_PICK,
priority: eventPriority,
pickConfig: options.pickConfiguration,
});
const addLastPointRegistration = this.mapEventsManager.register({
event: pointOptions.addLastPointEvent,
modifier: pointOptions.addLastPointModifier,
pick: PickOptions.NO_PICK,
priority: eventPriority,
pickConfig: options.pickConfiguration,
});
this.observablesMap.set(id, [mouseMoveRegistration, addLastPointRegistration]);
const editorObservable = this.createEditorObservable(clientEditSubject, id, finishCreation);
mouseMoveRegistration.subscribe(({ movement: { endPosition } }) => {
const position = this.screenToPosition(endPosition);
if (position) {
this.updateSubject.next({
id,
position,
editMode: EditModes.CREATE,
updatedPosition: position,
editAction: EditActions.MOUSE_MOVE,
});
}
});
addLastPointRegistration.subscribe(({ movement: { endPosition } }) => {
const position = this.screenToPosition(endPosition);
finishedCreate = finishCreation(position);
});
return editorObservable;
}
switchToEditMode(id, clientEditSubject, position, eventPriority, pointOptions, editorObservable, finishedCreate) {
const update = {
id,
position: position,
editMode: EditModes.CREATE_OR_EDIT,
updatedPosition: position,
editAction: EditActions.ADD_LAST_POINT,
};
this.updateSubject.next(update);
clientEditSubject.next({
...update,
position: position,
point: this.getPoint(id),
});
const changeMode = {
id,
editMode: EditModes.CREATE,
editAction: EditActions.CHANGE_TO_EDIT,
};
this.updateSubject.next(changeMode);
clientEditSubject.next(changeMode);
if (this.observablesMap.has(id)) {
this.observablesMap.get(id).forEach(registration => registration.dispose());
}
this.observablesMap.delete(id);
this.editPoint(id, position, eventPriority, clientEditSubject, pointOptions, editorObservable);
finishedCreate = true;
return finishedCreate;
}
edit(position, options = DEFAULT_POINT_OPTIONS, priority = 100) {
const id = generateKey();
const pointOptions = this.setOptions(options);
const editSubject = new BehaviorSubject({
id,
editAction: null,
editMode: EditModes.EDIT
});
const update = {
id,
position: position,
editMode: EditModes.EDIT,
editAction: EditActions.INIT,
pointOptions: pointOptions,
};
this.updateSubject.next(update);
editSubject.next({
...update,
position: position,
point: this.getPoint(id),
});
return this.editPoint(id, position, priority, editSubject, pointOptions);
}
editPoint(id, position, priority, editSubject, options, editObservable) {
const pointDragRegistration = this.mapEventsManager.register({
event: options.dragPointEvent,
entityType: EditPoint,
pick: PickOptions.PICK_FIRST,
pickConfig: options.pickConfiguration,
priority,
pickFilter: entity => id === entity.editedEntityId,
});
const pointRemoveRegistration = this.mapEventsManager.register({
event: options.removePointEvent,
modifier: options.removePointModifier,
entityType: EditPoint,
pick: PickOptions.PICK_FIRST,
pickConfig: options.pickConfiguration,
priority,
pickFilter: entity => id === entity.editedEntityId,
});
pointDragRegistration.pipe(tap(({ movement: { drop } }) => this.cameraService.enableInputs(drop)))
.subscribe(({ movement: { endPosition, drop }, entities }) => {
const updatedPosition = this.screenToPosition(endPosition);
if (!updatedPosition) {
return;
}
const update = {
id,
editMode: EditModes.EDIT,
updatedPosition,
editAction: drop ? EditActions.DRAG_POINT_FINISH : EditActions.DRAG_POINT,
};
this.updateSubject.next(update);
editSubject.next({
...update,
position: updatedPosition,
point: this.getPoint(id),
});
});
const observables = [pointDragRegistration, pointRemoveRegistration];
this.observablesMap.set(id, observables);
return this.createEditorObservable(editSubject, id);
}
setOptions(options) {
const defaultClone = JSON.parse(JSON.stringify(DEFAULT_POINT_OPTIONS));
const pointOptions = Object.assign(defaultClone, options);
pointOptions.pointProps = { ...DEFAULT_POINT_OPTIONS.pointProps, ...options.pointProps };
pointOptions.pointProps = { ...DEFAULT_POINT_OPTIONS.pointProps, ...options.pointProps };
return pointOptions;
}
createEditorObservable(observableToExtend, id, finishCreation) {
observableToExtend.dispose = () => {
const observables = this.observablesMap.get(id);
if (observables) {
observables.forEach(obs => obs.dispose());
}
this.observablesMap.delete(id);
this.updateSubject.next({
id,
editMode: EditModes.CREATE_OR_EDIT,
editAction: EditActions.DISPOSE,
});
};
observableToExtend.enable = () => {
this.updateSubject.next({
id,
position: this.getPosition(id),
editMode: EditModes.EDIT,
editAction: EditActions.ENABLE,
});
};
observableToExtend.disable = () => {
this.updateSubject.next({
id,
position: this.getPosition(id),
editMode: EditModes.EDIT,
editAction: EditActions.DISABLE,
});
};
observableToExtend.setManually = (point, pointProps) => {
const newPoint = this.pointManager.get(id);
newPoint.setManually(point, pointProps);
this.updateSubject.next({
id,
editMode: EditModes.CREATE_OR_EDIT,
editAction: EditActions.SET_MANUALLY,
});
};
observableToExtend.setLabelsRenderFn = (callback) => {
this.updateSubject.next({
id,
editMode: EditModes.CREATE_OR_EDIT,
editAction: EditActions.SET_EDIT_LABELS_RENDER_CALLBACK,
labelsRenderFn: callback,
});
};
observableToExtend.updateLabels = (labels) => {
this.updateSubject.next({
id,
editMode: EditModes.CREATE_OR_EDIT,
editAction: EditActions.UPDATE_EDIT_LABELS,
updateLabels: labels,
});
};
observableToExtend.finishCreation = () => {
if (!finishCreation) {
throw new Error('Points editor error edit(): cannot call finishCreation() on edit');
}
return finishCreation(null);
};
observableToExtend.getCurrentPoint = () => this.getPoint(id);
observableToExtend.getEditValue = () => observableToExtend.getValue();
observableToExtend.getLabels = () => this.pointManager.get(id).labels;
return observableToExtend;
}
getPosition(id) {
const point = this.pointManager.get(id);
return point.getPosition();
}
getPoint(id) {
const point = this.pointManager.get(id);
if (point) {
return point.getCurrentPoint();
}
}
}
PointsEditorService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: PointsEditorService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
PointsEditorService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: PointsEditorService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: PointsEditorService, decorators: [{
type: Injectable
}] });
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{publish, tap} from 'rxjs/operators';\nimport {Injectable} from '@angular/core';\nimport {Cartesian3, Color} from 'cesium';\nimport {MapEventsManagerService} from '../../../../angular-cesium/services/map-events-mananger/map-events-manager';\nimport {BehaviorSubject, Observable, Subject} from 'rxjs';\nimport {CesiumEvent} from '../../../../angular-cesium/services/map-events-mananger/consts/cesium-event.enum';\nimport {PickOptions} from '../../../../angular-cesium/services/map-events-mananger/consts/pickOptions.enum';\nimport {EditModes} from '../../../models/edit-mode.enum';\nimport {EditActions} from '../../../models/edit-actions.enum';\nimport {DisposableObservable} from '../../../../angular-cesium/services/map-events-mananger/disposable-observable';\nimport {CoordinateConverter} from '../../../../angular-cesium/services/coordinate-converter/coordinate-converter.service';\nimport {EditPoint} from '../../../models/edit-point';\nimport {CameraService} from '../../../../angular-cesium/services/camera/camera.service';\nimport {PointsManagerService} from './points-manager.service';\nimport {LabelProps} from '../../../models/label-props';\nimport {generateKey} from '../../utils';\nimport {CesiumService} from '../../../../angular-cesium';\nimport {PointEditOptions, PointProps} from '../../../models/point-edit-options';\nimport {PointEditUpdate} from '../../../models/point-edit-update';\nimport {PointEditorObservable} from '../../../models/point-editor-observable';\n\nexport const DEFAULT_POINT_OPTIONS: PointEditOptions = {\n  addLastPointEvent: CesiumEvent.LEFT_CLICK,\n  removePointEvent: CesiumEvent.RIGHT_CLICK,\n  dragPointEvent: CesiumEvent.LEFT_CLICK_DRAG,\n  allowDrag: true,\n  pointProps: {\n    color: Color.WHITE.withAlpha(0.95),\n    outlineColor: Color.BLACK.withAlpha(0.5),\n    outlineWidth: 1,\n    pixelSize: 10,\n    show: true,\n    disableDepthTestDistance: Number.POSITIVE_INFINITY,\n  },\n};\n\n/**\n * Service for creating editable point\n *\n *  * You must provide `PointsEditorService` yourself.\n * PolygonsEditorService works together with `<points-editor>` component. Therefor you need to create `<points-editor>`\n * for each `PointsEditorService`, And of course somewhere under `<ac-map>`/\n *\n * + `create` for starting a creation of the shape over the map. Returns a extension of `PointEditorObservable`.\n * + `edit` for editing shape over the map starting from a given positions. Returns an extension of `PointEditorObservable`.\n * + To stop editing call `dsipose()` from the `PointEditorObservable` you get back from `create()` \\ `edit()`.\n *\n * **Labels over editted shapes**\n * Angular Cesium allows you to draw labels over a shape that is being edited with one of the editors.\n * To add label drawing logic to your editor use the function `setLabelsRenderFn()` that is defined on the\n * `PointEditorObservable` that is returned from calling `create()` \\ `edit()` of one of the editor services.\n * `setLabelsRenderFn()` - receives a callback that is called every time the shape is redrawn\n * (except when the shape is being dragged). The callback is called with the last shape state and with an array of the current labels.\n * The callback should return type `LabelProps[]`.\n * You can also use `updateLabels()` to pass an array of labels of type `LabelProps[]` to be drawn.\n *\n * usage:\n * ```typescript\n *  // Start creating point\n *  const editing$ = pointEditorService.create();\n *  this.editing$.subscribe(editResult => {\n *\t\t\t\tconsole.log(editResult.positions);\n *\t\t});\n *\n *  // Or edit point from existing point cartesian3 positions\n *  const editing$ = this.pointEditor.edit(initialPos);\n *\n * ```\n */\n@Injectable()\nexport class PointsEditorService {\n  private mapEventsManager: MapEventsManagerService;\n  private updateSubject = new Subject<PointEditUpdate>();\n  private updatePublisher = publish<PointEditUpdate>()(this.updateSubject); // TODO maybe not needed\n  private coordinateConverter: CoordinateConverter;\n  private cameraService: CameraService;\n  private pointManager: PointsManagerService;\n  private observablesMap = new Map<string, DisposableObservable<any>[]>();\n  private cesiumScene;\n\n  init(mapEventsManager: MapEventsManagerService,\n       coordinateConverter: CoordinateConverter,\n       cameraService: CameraService,\n       pointManager: PointsManagerService,\n       cesiumViewer: CesiumService) {\n    this.mapEventsManager = mapEventsManager;\n    this.coordinateConverter = coordinateConverter;\n    this.cameraService = cameraService;\n    this.pointManager = pointManager;\n    this.updatePublisher.connect();\n\n    this.cesiumScene = cesiumViewer.getScene();\n  }\n\n  onUpdate(): Observable<PointEditUpdate> {\n    return this.updatePublisher;\n  }\n\n  private screenToPosition(cartesian2) {\n    const cartesian3 = this.coordinateConverter.screenToCartesian3(cartesian2);\n\n    // If cartesian3 is undefined then the point inst on the globe\n    if (cartesian3) {\n      const ray = this.cameraService.getCamera().getPickRay(cartesian2);\n      return this.cesiumScene.globe.pick(ray, this.cesiumScene);\n    }\n    return cartesian3;\n  }\n\n  create(options = DEFAULT_POINT_OPTIONS, eventPriority = 100): PointEditorObservable {\n    const id = generateKey();\n    const pointOptions = this.setOptions(options);\n\n    const clientEditSubject = new BehaviorSubject<PointEditUpdate>({\n      id,\n      editAction: null,\n      editMode: EditModes.CREATE\n    });\n    let finishedCreate = false;\n\n    this.updateSubject.next({\n      id,\n      editMode: EditModes.CREATE,\n      editAction: EditActions.INIT,\n      pointOptions: pointOptions,\n    });\n\n    const finishCreation = (position: Cartesian3) => {\n      return this.switchToEditMode(\n        id,\n        clientEditSubject,\n        position,\n        eventPriority,\n        pointOptions,\n        editorObservable,\n        true\n      );\n    };\n\n    const mouseMoveRegistration = this.mapEventsManager.register({\n      event: CesiumEvent.MOUSE_MOVE,\n      pick: PickOptions.NO_PICK,\n      priority: eventPriority,\n      pickConfig: options.pickConfiguration,\n    });\n    const addLastPointRegistration = this.mapEventsManager.register({\n      event: pointOptions.addLastPointEvent,\n      modifier: pointOptions.addLastPointModifier,\n      pick: PickOptions.NO_PICK,\n      priority: eventPriority,\n      pickConfig: options.pickConfiguration,\n    });\n\n    this.observablesMap.set(id, [mouseMoveRegistration, addLastPointRegistration]);\n    const editorObservable = this.createEditorObservable(clientEditSubject, id, finishCreation);\n\n    mouseMoveRegistration.subscribe(({ movement: { endPosition } }) => {\n      const position = this.screenToPosition(endPosition);\n      if (position) {\n\n        this.updateSubject.next({\n          id,\n          position,\n          editMode: EditModes.CREATE,\n          updatedPosition: position,\n          editAction: EditActions.MOUSE_MOVE,\n        });\n      }\n    });\n    addLastPointRegistration.subscribe(({ movement: { endPosition } }) => {\n      const position = this.screenToPosition(endPosition);\n      finishedCreate = finishCreation(position);\n    });\n    return editorObservable;\n  }\n\n  private switchToEditMode(id,\n                           clientEditSubject,\n                           position: Cartesian3,\n                           eventPriority,\n                           pointOptions,\n                           editorObservable,\n                           finishedCreate: boolean) {\n    const update = {\n      id,\n      position: position,\n      editMode: EditModes.CREATE_OR_EDIT,\n      updatedPosition: position,\n      editAction: EditActions.ADD_LAST_POINT,\n    };\n    this.updateSubject.next(update);\n    clientEditSubject.next({\n      ...update,\n      position: position,\n      point: this.getPoint(id),\n    });\n\n    const changeMode = {\n      id,\n      editMode: EditModes.CREATE,\n      editAction: EditActions.CHANGE_TO_EDIT,\n    };\n    this.updateSubject.next(changeMode);\n    clientEditSubject.next(changeMode);\n    if (this.observablesMap.has(id)) {\n      this.observablesMap.get(id).forEach(registration => registration.dispose());\n    }\n    this.observablesMap.delete(id);\n    this.editPoint(id, position, eventPriority, clientEditSubject, pointOptions, editorObservable);\n    finishedCreate = true;\n    return finishedCreate;\n  }\n\n  edit(position: Cartesian3, options = DEFAULT_POINT_OPTIONS, priority = 100): PointEditorObservable {\n    const id = generateKey();\n    const pointOptions = this.setOptions(options);\n    const editSubject = new BehaviorSubject<PointEditUpdate>({\n      id,\n      editAction: null,\n      editMode: EditModes.EDIT\n    });\n    const update = {\n      id,\n      position: position,\n      editMode: EditModes.EDIT,\n      editAction: EditActions.INIT,\n      pointOptions: pointOptions,\n    };\n    this.updateSubject.next(update);\n    editSubject.next({\n      ...update,\n      position: position,\n      point: this.getPoint(id),\n    });\n    return this.editPoint(\n      id,\n      position,\n      priority,\n      editSubject,\n      pointOptions\n    );\n  }\n\n  private editPoint(id: string,\n                       position: Cartesian3,\n                       priority: number,\n                       editSubject: Subject<PointEditUpdate>,\n                       options: PointEditOptions,\n                       editObservable?: PointEditorObservable) {\n    const pointDragRegistration = this.mapEventsManager.register({\n      event: options.dragPointEvent,\n      entityType: EditPoint,\n      pick: PickOptions.PICK_FIRST,\n      pickConfig: options.pickConfiguration,\n      priority,\n      pickFilter: entity => id === entity.editedEntityId,\n    });\n\n    const pointRemoveRegistration = this.mapEventsManager.register({\n      event: options.removePointEvent,\n      modifier: options.removePointModifier,\n      entityType: EditPoint,\n      pick: PickOptions.PICK_FIRST,\n      pickConfig: options.pickConfiguration,\n      priority,\n      pickFilter: entity => id === entity.editedEntityId,\n    });\n\n    pointDragRegistration.pipe(\n      tap(({ movement: { drop } }) => this.cameraService.enableInputs(drop)))\n      .subscribe(({ movement: { endPosition, drop }, entities }) => {\n        const updatedPosition = this.screenToPosition(endPosition);\n        if (!updatedPosition) {\n          return;\n        }\n        const update = {\n          id,\n          editMode: EditModes.EDIT,\n          updatedPosition,\n          editAction: drop ? EditActions.DRAG_POINT_FINISH : EditActions.DRAG_POINT,\n        };\n        this.updateSubject.next(update);\n        editSubject.next({\n          ...update,\n          position: updatedPosition,\n          point: this.getPoint(id),\n        });\n\n      });\n\n    const observables = [pointDragRegistration, pointRemoveRegistration];\n    this.observablesMap.set(id, observables);\n    return this.createEditorObservable(editSubject, id);\n  }\n\n  private setOptions(options: PointEditOptions) {\n    const defaultClone = JSON.parse(JSON.stringify(DEFAULT_POINT_OPTIONS));\n    const pointOptions: PointEditOptions = Object.assign(defaultClone, options);\n    pointOptions.pointProps = {...DEFAULT_POINT_OPTIONS.pointProps, ...options.pointProps};\n    pointOptions.pointProps = {...DEFAULT_POINT_OPTIONS.pointProps, ...options.pointProps};\n    return pointOptions;\n  }\n\n\n  private createEditorObservable(observableToExtend: any, id: string, finishCreation?: (position: Cartesian3) => boolean)\n                                                                                                    : PointEditorObservable {\n    observableToExtend.dispose = () => {\n      const observables = this.observablesMap.get(id);\n      if (observables) {\n        observables.forEach(obs => obs.dispose());\n      }\n      this.observablesMap.delete(id);\n      this.updateSubject.next({\n        id,\n        editMode: EditModes.CREATE_OR_EDIT,\n        editAction: EditActions.DISPOSE,\n      });\n    };\n\n    observableToExtend.enable = () => {\n      this.updateSubject.next({\n        id,\n        position: this.getPosition(id),\n        editMode: EditModes.EDIT,\n        editAction: EditActions.ENABLE,\n      });\n    };\n\n    observableToExtend.disable = () => {\n      this.updateSubject.next({\n        id,\n        position: this.getPosition(id),\n        editMode: EditModes.EDIT,\n        editAction: EditActions.DISABLE,\n      });\n    };\n\n    observableToExtend.setManually = (point: {\n      position: Cartesian3,\n      pointProp?: PointProps\n    } | Cartesian3, pointProps?: PointProps) => {\n      const newPoint = this.pointManager.get(id);\n      newPoint.setManually(point, pointProps);\n      this.updateSubject.next({\n        id,\n        editMode: EditModes.CREATE_OR_EDIT,\n        editAction: EditActions.SET_MANUALLY,\n      });\n    };\n\n    observableToExtend.setLabelsRenderFn = (callback: any) => {\n      this.updateSubject.next({\n        id,\n        editMode: EditModes.CREATE_OR_EDIT,\n        editAction: EditActions.SET_EDIT_LABELS_RENDER_CALLBACK,\n        labelsRenderFn: callback,\n      });\n    };\n\n    observableToExtend.updateLabels = (labels: LabelProps[]) => {\n      this.updateSubject.next({\n        id,\n        editMode: EditModes.CREATE_OR_EDIT,\n        editAction: EditActions.UPDATE_EDIT_LABELS,\n        updateLabels: labels,\n      });\n    };\n\n    observableToExtend.finishCreation = () => {\n      if (!finishCreation) {\n        throw new Error('Points editor error edit(): cannot call finishCreation() on edit');\n      }\n\n      return finishCreation(null);\n    };\n\n    observableToExtend.getCurrentPoint = () => this.getPoint(id);\n\n    observableToExtend.getEditValue = () => observableToExtend.getValue();\n\n    observableToExtend.getLabels = (): LabelProps[] => this.pointManager.get(id).labels;\n\n    return observableToExtend as PointEditorObservable;\n  }\n\n  private getPosition(id: string) {\n    const point = this.pointManager.get(id);\n    return point.getPosition();\n  }\n\n  private getPoint(id: string) {\n    const point = this.pointManager.get(id);\n    if (point) {\n      return point.getCurrentPoint();\n    }\n  }\n}\n"]}