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feat(geom): implements MultiPoint, MultiLinestring and MultiPolygon
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projects/ngx-openlayers/src/lib/collectioncoordinates.component.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| import { Component, Input, OnChanges, OnInit, Optional, SimpleChanges } from '@angular/core'; | ||
| import { MapComponent } from './map.component'; | ||
| import { GeometryLinestringComponent } from './geom/geometrylinestring.component'; | ||
| import { GeometryPolygonComponent } from './geom/geometrypolygon.component'; | ||
| import { GeometryMultiPointComponent } from './geom/geometrymultipoint.component'; | ||
| import { GeometryMultiLinestringComponent } from './geom/geometrymultilinestring.component'; | ||
| import { GeometryMultiPolygonComponent } from './geom/geometrymultipolygon.component'; | ||
| import { Coordinate } from 'ol/coordinate'; | ||
| import { transform } from 'ol/proj'; | ||
|
|
||
| @Component({ | ||
| selector: 'aol-collection-coordinates', | ||
| template: ` | ||
| <div class="aol-collection-coordinates"></div> | ||
| `, | ||
| }) | ||
| export class CollectionCoordinatesComponent implements OnChanges, OnInit { | ||
| private host: any; | ||
| private mapSrid = 'EPSG:3857'; | ||
|
|
||
| @Input() | ||
| coordinates: Coordinate[] | Coordinate[][] | Coordinate[][][]; | ||
| @Input() | ||
| srid = 'EPSG:3857'; | ||
|
|
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| constructor( | ||
| private map: MapComponent, | ||
| @Optional() geometryLinestring: GeometryLinestringComponent, | ||
| @Optional() geometryPolygon: GeometryPolygonComponent, | ||
| @Optional() geometryMultipoint: GeometryMultiPointComponent, | ||
| @Optional() geometryMultilinestring: GeometryMultiLinestringComponent, | ||
| @Optional() geometryMultipolygon: GeometryMultiPolygonComponent | ||
| ) { | ||
| if (!!geometryLinestring) { | ||
| this.host = geometryLinestring; | ||
| } else if (!!geometryPolygon) { | ||
| this.host = geometryPolygon; | ||
| } else if (!!geometryMultipoint) { | ||
| this.host = geometryMultipoint; | ||
| } else if (!!geometryMultilinestring) { | ||
| this.host = geometryMultilinestring; | ||
| } else if (!!geometryMultipolygon) { | ||
| this.host = geometryMultipolygon; | ||
| } else { | ||
| throw new Error('aol-collection-coordinates must be a child of a geometry component'); | ||
| } | ||
| } | ||
|
|
||
| ngOnInit() { | ||
| this.map.instance.on('change:view', e => this.onMapViewChanged(e)); | ||
| this.mapSrid = this.map.instance | ||
| .getView() | ||
| .getProjection() | ||
| .getCode(); | ||
| this.transformCoordinates(); | ||
| } | ||
|
|
||
| ngOnChanges(changes: SimpleChanges) { | ||
| this.transformCoordinates(); | ||
| } | ||
|
|
||
| private onMapViewChanged(event) { | ||
| this.mapSrid = event.target | ||
| .get(event.key) | ||
| .getProjection() | ||
| .getCode(); | ||
| this.transformCoordinates(); | ||
| } | ||
|
|
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| private transformCoordinates() { | ||
| let transformedCoordinates: Coordinate[] | Coordinate[][] | Coordinate[][][]; | ||
|
|
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| if (this.srid === this.mapSrid) { | ||
| transformedCoordinates = this.coordinates; | ||
| } else { | ||
| switch (this.host.componentType) { | ||
| case 'geometry-linestring': | ||
| case 'geometry-multipoint': | ||
| transformedCoordinates = (<Coordinate[]>this.coordinates).map(c => transform(c, this.srid, this.mapSrid)); | ||
| break; | ||
| case 'geometry-polygon': | ||
| case 'geometry-multilinestring': | ||
| transformedCoordinates = (<Coordinate[][]>this.coordinates).map(cc => | ||
| cc.map(c => transform(c, this.srid, this.mapSrid)) | ||
| ); | ||
| break; | ||
| case 'geometry-multipolygon': | ||
| transformedCoordinates = (<Coordinate[][][]>this.coordinates).map(ccc => | ||
| ccc.map(cc => cc.map(c => transform(c, this.srid, this.mapSrid))) | ||
| ); | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| this.host.instance.setCoordinates(transformedCoordinates); | ||
| } | ||
| } |
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30 changes: 30 additions & 0 deletions
30
projects/ngx-openlayers/src/lib/geom/geometrycircle.component.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| import { Component, Input, OnInit } from '@angular/core'; | ||
| import { FeatureComponent } from '../feature.component'; | ||
| import { Circle } from 'ol/geom'; | ||
| import { SimpleGeometryComponent } from './simplegeometry.component'; | ||
| import { MapComponent } from '../map.component'; | ||
|
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| @Component({ | ||
| selector: 'aol-geometry-circle', | ||
| template: ` | ||
| <ng-content></ng-content> | ||
| `, | ||
| }) | ||
| export class GeometryCircleComponent extends SimpleGeometryComponent implements OnInit { | ||
| public componentType = 'geometry-circle'; | ||
| public instance: Circle; | ||
|
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| @Input() | ||
| get radius(): number { | ||
| return this.instance.getRadius(); | ||
| } | ||
| set radius(radius: number) { | ||
| this.instance.setRadius(radius); | ||
| } | ||
|
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| constructor(map: MapComponent, host: FeatureComponent) { | ||
| super(map, host); | ||
| // defaulting coordinates to [0,0]. To be overridden in child component. | ||
| this.instance = new Circle([0, 0]); | ||
| } | ||
| } |
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projects/ngx-openlayers/src/lib/geom/geometrylinestring.component.ts
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,25 @@ | ||
| import { Component, OnInit } from '@angular/core'; | ||
| import { FeatureComponent } from '../feature.component'; | ||
| import { SimpleGeometryComponent } from './simplegeometry.component'; | ||
| import { MapComponent } from '../map.component'; | ||
| import { LineString } from 'ol/geom'; | ||
|
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| @Component({ | ||
| selector: 'aol-geometry-linestring', | ||
| template: ` | ||
| <ng-content></ng-content> | ||
| `, | ||
| }) | ||
| export class GeometryLinestringComponent extends SimpleGeometryComponent implements OnInit { | ||
| public componentType = 'geometry-linestring'; | ||
| public instance: LineString; | ||
|
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| constructor(map: MapComponent, host: FeatureComponent) { | ||
| super(map, host); | ||
| } | ||
|
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| ngOnInit() { | ||
| this.instance = new LineString([[0, 0], [1, 1]]); | ||
| super.ngOnInit(); | ||
| } | ||
| } |
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