import { ValueMap } from "@here/harp-datasource-protocol/index-decoder" ; import { GeoCoordinates } from "@here/harp-geoutils" ; import { Vector2 , Vector3 } from "three" ; /**
 * An interface to represent polygon geometries.
 */ export interface IPolygonGeometry { /**
     * The rings of this polygon (specified in local webMercator space).
     */ readonly rings : Vector2 [ ] [ ] ; } /**
 * An interface to represent line geometries.
 */ export interface ILineGeometry { /**
     * The positions of this [[ILineGeometry]] projected in local webMercator space.
     */ readonly positions : Vector2 [ ] ; /**
     * The positions of the original/untiled [[ILineGeometry]] in [[GeoCoordinates]].
     */ readonly untiledPositions ? : GeoCoordinates [ ] ; } /**
 * The [[IGeometryProcessor]] is used to process geometry features from vector tiles.
 *
 * [[VectorTileDecoder]] will pass to this interface implementation sequences of geometries
 * projected in webMercator local tile space (coordinates relative to tile's north-east corner).
 * If desired, the world positions can be converted to [[GeoCoordinates]] using the
 * [[Projection.unprojectPoint]], for example:
 *
 * ```typescript
 *        convert(geometry: ILineGeometry): GeoCoordinates[] {
 *            const projection = webMercatorTilingScheme.projection;
 *
 *            const coordinates = geometry.positions.map(worldP =>
 *                  projection.unprojectPoint(worldP));
 *
 *            return coordinates;
 *        }
 * ```
 *
 * The methods of concrete implementations of [[IGeometryProcessor]] are called to process point,
 * line and polygon geometries, see [[VectorTileDecoder]].
 */ export interface IGeometryProcessor { param layerName param tileExtents param geometry param properties param featureId processPointFeature ( layerName , tileExtents , geometry , properties , featureId ) : void ; param layerName param tileExtents param geometry param properties param featureId processLineFeature ( layerName , tileExtents , geometry , properties , featureId ) : void ; param layerName param tileExtents param geometry param properties param featureId processPolygonFeature ( layerName , tileExtents , geometry , properties , featureId ) : void ; }