app/org.scottishtecharmy.soundscape.geoengine.mvttranslation

Package-level declarations

Types

EntranceDetails

data class EntranceDetails(val name: String?, val entranceType: String?, val poi: Boolean, val osmId: Double)

EntranceMatching

class EntranceMatching

InterpolatedPointsJoiner

class InterpolatedPointsJoiner

IntersectionDetails

data class IntersectionDetails(val name: String, val type: String, val subClass: String, val brunnel: String, val id: Double, var lineEnd: Boolean = false)

IntersectionDetection

class IntersectionDetection

Functions

areCoordinatesClockwise

fun areCoordinatesClockwise(coordinates: ArrayList<Pair<Int, Int>>): Boolean

calculateSlope

fun calculateSlope(aConst: Double, a1: Double, a2: Double): Double?

convertGeometry

fun convertGeometry(tileX: Int, tileY: Int, tileZoom: Int, geometry: ArrayList<Pair<Int, Int>>): ArrayList<LngLatAlt>

convertGeometryAndClipLineToTile

fun convertGeometryAndClipLineToTile(tileX: Int, tileY: Int, tileZoom: Int, line: ArrayList<Pair<Int, Int>>, interpolatedNodes: MutableList<LngLatAlt>): List<LineString>

convertGeometryAndClipLineToTile takes a line and converts it into a List of LineStrings. In the simplest case, the points are all within the tile and so there will just be a single LineString output. However, if the line goes off and on the tile (bouncing around in the buffer region) then there can be multiple segments returned. We also store all of the interpolated points that we've been created so that we can more easily connect them to the adjacent tiles in the grid.

getTileCrossingPoint

fun getTileCrossingPoint(point1: Pair<Int, Int>, point2: Pair<Int, Int>): List<Pair<Double, Double>>

getTileCrossingPoint returns the point at which the line connecting lastPoint and point crosses the tile boundary. If both points are outside the tile there can be two intersection points returned. Otherwise there can only be a single intersection point.

intersectHorizontal

fun intersectHorizontal(yConst: Double, x1: Double, x2: Double, y1: Double, y2: Double): Double?

intersectVertical

fun intersectVertical(xConst: Double, y1: Double, y2: Double, x1: Double, x2: Double): Double?

pointIsOffTile

fun pointIsOffTile(x: Int, y: Int): Boolean

sampleToFractionOfTile

fun sampleToFractionOfTile(sample: Int): Double

translateProperties

fun translateProperties(properties: HashMap<String, Any?>?, id: Double): HashMap<String, Any?>

translateProperties takes the properties stored in the MVT and translates them into a set of foreign properties that nearer matches those returned by the soundscape-backend.

vectorTileToGeoJson

fun vectorTileToGeoJson(tileX: Int, tileY: Int, mvt: <Error class: unknown class>, cropPoints: Boolean = true, tileZoom: Int = ZOOM_LEVEL): FeatureCollection

vectorTileToGeoJson generates a GeoJSON FeatureCollection from a Mapbox Vector Tile.