angular-cesium
Version:
Angular library for working with Cesium.
200 lines • 29.4 kB
JavaScript
import { AcEntity } from '../../angular-cesium/models/ac-entity';
import { EditPoint } from './edit-point';
import { defaultLabelProps } from './label-props';
export class EditableRectangle extends AcEntity {
constructor(id, pointsLayer, rectangleLayer, coordinateConverter, editOptions, positions) {
super();
this.id = id;
this.pointsLayer = pointsLayer;
this.rectangleLayer = rectangleLayer;
this.coordinateConverter = coordinateConverter;
this.positions = [];
this.done = false;
this._enableEdit = true;
this._labels = [];
this.defaultPointProps = Object.assign({}, editOptions.pointProps);
this.rectangleProps = Object.assign({}, editOptions.rectangleProps);
if (positions && positions.length === 2) {
this.createFromExisting(positions);
}
else if (positions) {
throw new Error('Rectangle consist of 2 points but provided ' + positions.length);
}
}
get labels() {
return this._labels;
}
set labels(labels) {
if (!labels) {
return;
}
const positions = this.getRealPositions();
this._labels = labels.map((label, index) => {
if (!label.position) {
label.position = positions[index];
}
return Object.assign({}, defaultLabelProps, label);
});
}
get rectangleProps() {
return this._rectangleProps;
}
set rectangleProps(value) {
this._rectangleProps = value;
}
get defaultPointProps() {
return this._defaultPointProps;
}
set defaultPointProps(value) {
this._defaultPointProps = value;
}
get enableEdit() {
return this._enableEdit;
}
set enableEdit(value) {
this._enableEdit = value;
this.positions.forEach(point => {
point.show = value;
this.updatePointsLayer(point);
});
}
createFromExisting(positions) {
positions.forEach(position => {
this.addPointFromExisting(position);
});
this.updateRectangleLayer();
this.updatePointsLayer(...this.positions);
this.done = true;
}
setPointsManually(points, widthMeters) {
if (!this.done) {
throw new Error('Update manually only in edit mode, after rectangle is created');
}
this.positions.forEach(p => this.pointsLayer.remove(p.getId()));
this.positions = points;
this.updatePointsLayer(...points);
this.updateRectangleLayer();
}
addPointFromExisting(position) {
const newPoint = new EditPoint(this.id, position, this.defaultPointProps);
this.positions.push(newPoint);
this.updatePointsLayer(newPoint);
}
addPoint(position) {
if (this.done) {
return;
}
const isFirstPoint = !this.positions.length;
if (isFirstPoint) {
const firstPoint = new EditPoint(this.id, position, this.defaultPointProps);
this.positions.push(firstPoint);
this.movingPoint = new EditPoint(this.id, position.clone(), this.defaultPointProps);
this.positions.push(this.movingPoint);
this.updatePointsLayer(firstPoint);
}
else {
this.updatePointsLayer(...this.positions);
this.updateRectangleLayer();
this.done = true;
this.movingPoint = null;
}
}
movePoint(toPosition, editPoint) {
if (!editPoint.isVirtualEditPoint()) {
editPoint.setPosition(toPosition);
this.updatePointsLayer(...this.positions);
this.updateRectangleLayer();
}
}
moveShape(startMovingPosition, draggedToPosition) {
if (!this.lastDraggedToPosition) {
this.lastDraggedToPosition = startMovingPosition;
}
const lastDraggedCartographic = Cesium.Cartographic.fromCartesian(this.lastDraggedToPosition);
const draggedToPositionCartographic = Cesium.Cartographic.fromCartesian(draggedToPosition);
this.getRealPoints().forEach(point => {
const cartographic = Cesium.Cartographic.fromCartesian(point.getPosition());
cartographic.longitude += (draggedToPositionCartographic.longitude - lastDraggedCartographic.longitude);
cartographic.latitude += (draggedToPositionCartographic.latitude - lastDraggedCartographic.latitude);
point.setPosition(Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 0));
});
this.updatePointsLayer(...this.positions);
this.updateRectangleLayer();
this.lastDraggedToPosition = draggedToPosition;
}
endMoveShape() {
this.lastDraggedToPosition = undefined;
this.positions.forEach(point => this.updatePointsLayer(point));
this.updateRectangleLayer();
}
endMovePoint() {
this.updatePointsLayer(...this.positions);
}
moveTempMovingPoint(toPosition) {
if (this.movingPoint) {
this.movePoint(toPosition, this.movingPoint);
}
}
removePoint(pointToRemove) {
this.removePosition(pointToRemove);
this.positions.filter(p => p.isVirtualEditPoint()).forEach(p => this.removePosition(p));
}
addLastPoint(position) {
this.done = true;
this.removePosition(this.movingPoint); // remove movingPoint
this.movingPoint = null;
}
getRealPositions() {
return this.getRealPoints().map(position => position.getPosition());
}
getRealPositionsCallbackProperty() {
return new Cesium.CallbackProperty(this.getRealPositions.bind(this), false);
}
getRealPoints() {
return this.positions.filter(position => !position.isVirtualEditPoint());
}
getPositions() {
return this.positions.map(position => position.getPosition());
}
getRectangle() {
const cartographics = this.getPositions().map(cartesian => Cesium.Cartographic.fromCartesian(cartesian));
const longitudes = cartographics.map(position => position.longitude);
const latitudes = cartographics.map(position => position.latitude);
return new Cesium.Rectangle(Math.min(...longitudes), Math.min(...latitudes), Math.max(...longitudes), Math.max(...latitudes));
}
getRectangleCallbackProperty() {
return new Cesium.CallbackProperty(this.getRectangle.bind(this), false);
}
removePosition(point) {
const index = this.positions.findIndex(p => p === point);
if (index < 0) {
return;
}
this.positions.splice(index, 1);
this.pointsLayer.remove(point.getId());
}
updatePointsLayer(...point) {
point.forEach(p => this.pointsLayer.update(p, p.getId()));
}
updateRectangleLayer() {
this.rectangleLayer.update(this, this.id);
}
dispose() {
this.rectangleLayer.remove(this.id);
this.positions.forEach(editPoint => {
this.pointsLayer.remove(editPoint.getId());
});
if (this.movingPoint) {
this.pointsLayer.remove(this.movingPoint.getId());
this.movingPoint = undefined;
}
this.positions.length = 0;
}
getPointsCount() {
return this.positions.length;
}
getId() {
return this.id;
}
}
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{ AcEntity } from '../../angular-cesium/models/ac-entity';\r\nimport { EditPoint } from './edit-point';\r\nimport { AcLayerComponent } from '../../angular-cesium/components/ac-layer/ac-layer.component';\r\nimport { Cartesian3 } from '../../angular-cesium/models/cartesian3';\r\nimport { Rectangle } from '../../angular-cesium/models/rectangle';\r\nimport { CoordinateConverter } from '../../angular-cesium/services/coordinate-converter/coordinate-converter.service';\r\nimport { GeoUtilsService } from '../../angular-cesium/services/geo-utils/geo-utils.service';\r\nimport { RectangleEditOptions, RectangleProps } from './rectangle-edit-options';\r\nimport { PointProps } from './point-edit-options';\r\nimport { defaultLabelProps, LabelProps } from './label-props';\r\n\r\nexport class EditableRectangle extends AcEntity {\r\n  private positions: EditPoint[] = [];\r\n  private movingPoint: EditPoint;\r\n  private done = false;\r\n  private _enableEdit = true;\r\n  private _defaultPointProps: PointProps;\r\n  private _rectangleProps: RectangleProps;\r\n  private lastDraggedToPosition: Cartesian3;\r\n  private _labels: LabelProps[] = [];\r\n\r\n  constructor(\r\n    private id: string,\r\n    private pointsLayer: AcLayerComponent,\r\n    private rectangleLayer: AcLayerComponent,\r\n    private coordinateConverter: CoordinateConverter,\r\n    editOptions: RectangleEditOptions,\r\n    positions?: Cartesian3[]\r\n  ) {\r\n    super();\r\n    this.defaultPointProps = {...editOptions.pointProps};\r\n    this.rectangleProps = {...editOptions.rectangleProps};\r\n    if (positions && positions.length === 2) {\r\n      this.createFromExisting(positions);\r\n    } else if (positions) {\r\n      throw new Error('Rectangle consist of 2 points but provided ' + positions.length);\r\n    }\r\n  }\r\n\r\n  get labels(): LabelProps[] {\r\n    return this._labels;\r\n  }\r\n\r\n  set labels(labels: LabelProps[]) {\r\n    if (!labels) {\r\n      return;\r\n    }\r\n    const positions = this.getRealPositions();\r\n    this._labels = labels.map((label, index) => {\r\n      if (!label.position) {\r\n        label.position = positions[index];\r\n      }\r\n\r\n      return Object.assign({}, defaultLabelProps, label);\r\n    });\r\n  }\r\n\r\n  get rectangleProps(): RectangleProps {\r\n    return this._rectangleProps;\r\n  }\r\n\r\n  set rectangleProps(value: RectangleProps) {\r\n    this._rectangleProps = value;\r\n  }\r\n\r\n  get defaultPointProps(): PointProps {\r\n    return this._defaultPointProps;\r\n  }\r\n\r\n  set defaultPointProps(value: PointProps) {\r\n    this._defaultPointProps = value;\r\n  }\r\n\r\n  get enableEdit() {\r\n    return this._enableEdit;\r\n  }\r\n\r\n  set enableEdit(value: boolean) {\r\n    this._enableEdit = value;\r\n    this.positions.forEach(point => {\r\n      point.show = value;\r\n      this.updatePointsLayer(point);\r\n    });\r\n  }\r\n\r\n  private createFromExisting(positions: Cartesian3[]) {\r\n    positions.forEach(position => {\r\n      this.addPointFromExisting(position);\r\n    });\r\n    this.updateRectangleLayer();\r\n    this.updatePointsLayer(...this.positions);\r\n    this.done = true;\r\n  }\r\n\r\n  setPointsManually(points: EditPoint[], widthMeters?: number) {\r\n    if (!this.done) {\r\n      throw new Error('Update manually only in edit mode, after rectangle is created');\r\n    }\r\n    this.positions.forEach(p => this.pointsLayer.remove(p.getId()));\r\n    this.positions = points;\r\n    this.updatePointsLayer(...points);\r\n    this.updateRectangleLayer();\r\n  }\r\n\r\n  addPointFromExisting(position: Cartesian3) {\r\n    const newPoint = new EditPoint(this.id, position, this.defaultPointProps);\r\n    this.positions.push(newPoint);\r\n    this.updatePointsLayer(newPoint);\r\n  }\r\n\r\n  addPoint(position: Cartesian3) {\r\n    if (this.done) {\r\n      return;\r\n    }\r\n    const isFirstPoint = !this.positions.length;\r\n    if (isFirstPoint) {\r\n      const firstPoint = new EditPoint(this.id, position, this.defaultPointProps);\r\n      this.positions.push(firstPoint);\r\n      this.movingPoint = new EditPoint(this.id, position.clone(), this.defaultPointProps);\r\n      this.positions.push(this.movingPoint);\r\n      this.updatePointsLayer(firstPoint);\r\n    } else {\r\n\r\n      this.updatePointsLayer(...this.positions);\r\n      this.updateRectangleLayer();\r\n      this.done = true;\r\n      this.movingPoint = null;\r\n    }\r\n  }\r\n\r\n  movePoint(toPosition: Cartesian3, editPoint: EditPoint) {\r\n    if (!editPoint.isVirtualEditPoint()) {\r\n      editPoint.setPosition(toPosition);\r\n      this.updatePointsLayer(...this.positions);\r\n      this.updateRectangleLayer();\r\n    }\r\n  }\r\n\r\n  moveShape(startMovingPosition: Cartesian3, draggedToPosition: Cartesian3) {\r\n    if (!this.lastDraggedToPosition) {\r\n      this.lastDraggedToPosition = startMovingPosition;\r\n    }\r\n\r\n    const lastDraggedCartographic = Cesium.Cartographic.fromCartesian(this.lastDraggedToPosition);\r\n    const draggedToPositionCartographic = Cesium.Cartographic.fromCartesian(draggedToPosition);\r\n    this.getRealPoints().forEach(point => {\r\n      const cartographic = Cesium.Cartographic.fromCartesian(point.getPosition());\r\n      cartographic.longitude += (draggedToPositionCartographic.longitude - lastDraggedCartographic.longitude);\r\n      cartographic.latitude += (draggedToPositionCartographic.latitude - lastDraggedCartographic.latitude);\r\n      point.setPosition(Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 0));\r\n    });\r\n\r\n    this.updatePointsLayer(...this.positions);\r\n    this.updateRectangleLayer();\r\n    this.lastDraggedToPosition = draggedToPosition;\r\n  }\r\n\r\n  endMoveShape() {\r\n    this.lastDraggedToPosition = undefined;\r\n    this.positions.forEach(point => this.updatePointsLayer(point));\r\n    this.updateRectangleLayer();\r\n  }\r\n\r\n  endMovePoint() {\r\n    this.updatePointsLayer(...this.positions);\r\n  }\r\n\r\n  moveTempMovingPoint(toPosition: Cartesian3) {\r\n    if (this.movingPoint) {\r\n      this.movePoint(toPosition, this.movingPoint);\r\n    }\r\n  }\r\n\r\n  removePoint(pointToRemove: EditPoint) {\r\n    this.removePosition(pointToRemove);\r\n    this.positions.filter(p => p.isVirtualEditPoint()).forEach(p => this.removePosition(p));\r\n  }\r\n\r\n  addLastPoint(position: Cartesian3) {\r\n    this.done = true;\r\n    this.removePosition(this.movingPoint); // remove movingPoint\r\n    this.movingPoint = null;\r\n  }\r\n\r\n  getRealPositions(): Cartesian3[] {\r\n    return this.getRealPoints().map(position => position.getPosition());\r\n  }\r\n\r\n  getRealPositionsCallbackProperty() {\r\n    return new Cesium.CallbackProperty(this.getRealPositions.bind(this), false);\r\n  }\r\n\r\n  getRealPoints(): EditPoint[] {\r\n    return this.positions.filter(position => !position.isVirtualEditPoint());\r\n  }\r\n\r\n  getPositions(): Cartesian3[] {\r\n    return this.positions.map(position => position.getPosition());\r\n  }\r\n\r\n  getRectangle(): Rectangle {\r\n    const cartographics = this.getPositions().map(cartesian => Cesium.Cartographic.fromCartesian(cartesian));\r\n    const longitudes = cartographics.map(position => position.longitude);\r\n    const latitudes = cartographics.map(position =>  position.latitude);\r\n\r\n    return new Cesium.Rectangle(\r\n      Math.min(...longitudes),\r\n      Math.min(...latitudes),\r\n      Math.max(...longitudes),\r\n      Math.max(...latitudes)\r\n    );\r\n  }\r\n\r\n  getRectangleCallbackProperty(): Rectangle {\r\n    return new Cesium.CallbackProperty(this.getRectangle.bind(this), false);\r\n  }\r\n\r\n  private removePosition(point: EditPoint) {\r\n    const index = this.positions.findIndex(p => p === point);\r\n    if (index < 0) {\r\n      return;\r\n    }\r\n    this.positions.splice(index, 1);\r\n    this.pointsLayer.remove(point.getId());\r\n  }\r\n\r\n  private updatePointsLayer(...point: EditPoint[]) {\r\n    point.forEach(p => this.pointsLayer.update(p, p.getId()));\r\n  }\r\n\r\n  private updateRectangleLayer() {\r\n    this.rectangleLayer.update(this, this.id);\r\n  }\r\n\r\n  dispose() {\r\n    this.rectangleLayer.remove(this.id);\r\n\r\n    this.positions.forEach(editPoint => {\r\n      this.pointsLayer.remove(editPoint.getId());\r\n    });\r\n    if (this.movingPoint) {\r\n      this.pointsLayer.remove(this.movingPoint.getId());\r\n      this.movingPoint = undefined;\r\n    }\r\n    this.positions.length = 0;\r\n  }\r\n\r\n  getPointsCount(): number {\r\n    return this.positions.length;\r\n  }\r\n\r\n  getId() {\r\n    return this.id;\r\n  }\r\n}\r\n\r\n"]}