TileCoordsRegion
public class TileCoordsRegion
3 dimensional square region in a tile map. The three dimensions are:
- latitude (y)
- longitude (x)
- zoom (z)
A region is represented by two TileCoords
one holds
the topLeft corner and the other the bottomRight corner.
Notice that, in general, map UIs represent an infinite scroll in the longitude (x) axis, when the map ends, it is displayed the beginning.
In this scenario, if we allow user to pick two points to select a region, we may end up with two sub-regions.
+---------------------++---------------------++---------------------+
| || || |
| * P1 || || |
| || || |
| Map 1 || Map 1bis || Map 1 bis bis |
| || || |
| || * P2 || |
| || || |
+---------------------++---------------------++---------------------+
-
Undocumented
Declaration
Swift
public var topLeft: TileCoords
-
Undocumented
Declaration
Swift
public var bottomRight: TileCoords
-
Undocumented
Declaration
Swift
public var zoomRange: ZoomRange { get }
-
Undocumented
Declaration
Swift
public var count: TileNumber { get }
-
The region will be the area that holds the line from any top left point (P1) to any bottom rightpoint 2 (P2)
Declaration
Swift
public init?(topLeftLatitude: Double, topLeftLongitude: Double, bottomRightLatitude: Double, bottomRightLongitude: Double, minZoom: UInt8, maxZoom: UInt8)
-
The region will be the area that holds the line from any top left point (P1) to any bottom rightpoint 2 (P2) For example, in this map:
+---------------------++---------------------++---------------------+ | P1 || || | | * . .||. + || | | . \ || · || | | Map 1 . \ || · Map 2 || Map 3 | | . \|| · || | | . \| · || | | . |\ · || | | . ||\ · || | | . || \· || | | + . .||. * P2 || | +---------------------++---------------------++---------------------+
-180 180 -180 180
The area will be the one denoted with the dots.
Declaration
Swift
public init?(topLeft: TileCoords, bottomRight: TileCoords)
-
Undocumented
Declaration
Swift
public func count(forZoom zoom: Zoom) -> TileNumber
-
For example, in this map there are two ranges. One that covers the area A1 and other that covers the area A2
+----------------------++---------------------++---------------------+ | P1 || || | | *.....||...+ || | | . \ .||. · || | | Map 1 . \ .||. · Map 2 || Map 3 | | . \.||. · || | | . \||.A2· || | | . A1.|\. · || | | . .||\ · || | | . .||.\ · || | | +.....||...* P2 || | +----------------------++---------------------++---------------------+
-180 180 -180 180
-
Gets the tile ranges for all zooms.
Declaration
Swift
public func tileRanges() -> [TileRange]?