Class: modelit.mapviewer.RDTileSource

Extends: modelit.mapviewer.AbstractTileSource

DESCRIPTION:

modelit.mapviewer.RDTileSource constructor.

Properties

baseUrl string, default value: 'png'.
  The tile url without parameters.
isWGS Return true if WGS coordinate.
MAX_LAT Maximum latitude (north) for mercator display
maxZoomLevel number
  Maximum (greatest detail) zoomlevel.
MIN_LAT Minimum latitude (south) for mercator display
minZoomLevel number
  Minimum (lowest detail) zoomlevel.
name string
  The name of the tilesource.
numberOfThreads number, default value: 2
  Number of threads that can be used to download the tiles.
  Note that some of the tileproviders have a limit of the number of
  parallel requests.
tileSize number, default value: 256.
  The tilesize in pixels. Tile are assumed to be square.
tileType string, default value: 'png'.
  The image type of the tiles.
tileUrl string|@(zoomlevel, x, y) = string>
  The part of the url that defines which tile to retrieve.

Public Method: YToLat

DESCRIPTION:

Transforms pixel coordinate Y to latitude

CALL:

lat = YToLat(aY, aZoomlevel)

INPUT:

obj any
modelit.mapviewer.RDTileSource
aY any
Double with y-coordinate in pixelspace.
aZoomlevel any
Integer with zoomlevel.

OUTPUT:

lat any
Double with latitude.

Public Method: LatToY

DESCRIPTION:

Transforms latitude to pixelspace.

CALL:

y = LatToY(obj, aLatitude, aZoomlevel)

INPUT:

obj modelit.mapviewer.RDTileSource
aLatitude number
the latitude.
aZoomlevel integer
the zoomlevel.

OUTPUT:

y number
the y-coordinate in pixelspace.

Public Method: XToLon

DESCRIPTION:

Transforms pixel coordinate X to RD.

CALL:

lon = XToLon(obj, aX, aZoomlevel)

INPUT:

obj modelit.mapviewer.RDTileSource
aX number
the x-coordinate in pixelspace.
aZoomlevel integer
the zoomlevel.

OUTPUT:

lon number
the longitude.

Public Method: localToPixel

DESCRIPTION:

Transform local coordinates to pixel coordinates.

CALL:

xy = localToPixel(obj, xy_local, aZoomlevel)

INPUT:

obj any
<modelit.mapviewer.RDTileSource>
xy_local any
<Double> Nx2, with local coordinates(RD).
aZoomlevel any
<integer> with zoomlevel.

OUTPUT:

xy any
<Double> NNx2, with x-coordinate in pixelspace.

Public Method: pixelToLocal

DESCRIPTION:

pixel coordinates to local coordinates (RD), all in 1

Public Method: LonToX

DESCRIPTION:

Transform longitude to pixelspace.

CALL:

x = LonToX(obj, aLongitude, aZoomlevel)

INPUT:

obj any
<modelit.mapviewer.RDTileSource>
aLongitude any
<Double> with longitude (RD).
aZoomlevel any
<integer> with zoomlevel.

OUTPUT:

x any
<Double> with x-coordinate in pixelspace.

Public Method: pixel2Zoomlevel

DESCRIPTION:

Determine zoomlevel from x coordinate.

CALL:

zm = pixel2Zoomlevel(obj, x)

INPUT:

obj modelit.mapviewer.RDTileSource
x integer|integer[]
pixel coordinate in x direction

OUTPUT:

zm integer
defined as: 2^aZoomlevel * tileSize.

Public Method: getMaxPixels

DESCRIPTION:

Get the maximum number of pixels in y or x for a zoomlevel.

CALL:

maxPixels = getMaxPixels(aZoomlevel)

INPUT:

obj modelit.mapviewer.RDTileSource
aZoomlevel integer|integer[]
the zoomlevel(s).

OUTPUT:

maxPixels integer
defined as: 2^aZoomlevel * tileSize.

Public Method: getName

DESCRIPTION:

Get name that uniquely identifies this tilesource. Used for caching.

CALL:

name = getName(obj)

INPUT:

obj modelit.mapviewer.RDTileSource

OUTPUT:

name string

Public Method: RDTileSource

DESCRIPTION:

modelit.mapviewer.RDTileSource constructor.

CALL:

obj = RDTileSource(tileType)

INPUT:

tileType string
The image type of the tiles.

OUTPUT:

obj modelit.mapviewer.RDTileSource
Documentation for modelit.mapviewer.RDTileSource/RDTileSource
   doc modelit.mapviewer.RDTileSource

Public Static Method: WGSToLocal

DESCRIPTION:

Transforms WGS coordinates to local (=RD)

CALL:

xy_local = WGSToLocal(xy_wgs)

INPUT:

obj any
 modelit.mapviewer.RDTileSource
wx,wy:
 WGS coordinates, scalar, vector or matrix

OUTPUT:

   lon,lat:
     Coresponding local coordinates (RD)

Public Static Method: localToWGS

DESCRIPTION:

Transforms local coordinates (=RD) to WGS

CALL:

[xy_wgs] = localToWGS(xy_local)

INPUT:

xy_local any
Local coordinates, Nx2, colum1 corresponds to x, column2
corresponds to y

OUTPUT:

xy_wgs any
Coresponding WGS coordinates

Private Method: falseNorthing

DESCRIPTION:

The linear value added to all y-coordinates of a map projection so that none of the values in the geographic region being mapped are negative.

CALL:

fn = falseNorthing(obj, aZoomlevel)

INPUT:

obj any
<modelit.mapviewer.RDTileSource>
aZoomlevel any
<integer> with zoomlevel.

OUTPUT:

fn any
Corrected y-coordinate.

Private Method: falseEasting

DESCRIPTION:

The linear value added to all x-coordinates of a map projection so that none of the values in the geographic region being mapped are negative.

CALL:

fe = falseEasting(obj, aZoomlevel)

INPUT:

obj any
<modelit.mapviewer.RDTileSource>
aZoomlevel any
<integer> with zoomlevel.

OUTPUT:

fe any
Corrected x-coordinate.

Private Method: radius

DESCRIPTION:

Get radius in pixels at a given zoomlevel.

CALL:

r = radius(obj, aZoomlevel)

INPUT:

obj any
<modelit.mapviewer.RDTileSource>
aZoomlevel any
<integer> with zoomlevel.

OUTPUT:

r any
Integer with radius in pixels at a given zoomlevel.

Public Method: getTileUrl

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

Get url to retrieve a specific tile at a given (x,y) index and zoomlevel from the tileserver

CALL:

url = getTileUrl(obj, zoomlevel, x, y)

INPUT:

obj modelit.mapviewer.PDOKTileSource
zoomlevel integer
the zoomlevel. Choose zoomlevel between
getMinZoomLevel and getMaxZoomLevel
x number
Horizontal tile index.
y number
Vertical tile index.

OUTPUT:

url string
     url for a tile with index (x,y) and zoomlevel at the tileserver.
Help for modelit.mapviewer.RDTileSource/getTileUrl is inherited from superclass modelit.mapviewer.AbstractTileSource

Public Method: getBaseUrl

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

Get the base url for this TileSource, use this with getTileUrl. To get the url for a specific tile at a specific coordinate and zoomlevel.

CALL:

url = getBaseUrl(obj)

INPUT:

obj modelit.mapviewer.AbstractTileSource

OUTPUT:

url string
        with base url.
Help for modelit.mapviewer.RDTileSource/getBaseUrl is inherited from superclass modelit.mapviewer.AbstractTileSource

Public Method: getTileType

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

Get the image type of the tiles.

CALL:

type = getTileType(obj)

INPUT:

obj modelit.mapviewer.AbstractTileSource

OUTPUT:

type string
     with image type. For OpenStreetMap tiles type='png'
Help for modelit.mapviewer.RDTileSource/getTileType is inherited from superclass modelit.mapviewer.AbstractTileSource

Public Method: getMinZoomLevel

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

The minimum zoom value. This value is usually 0.

CALL:

zoom = getMinZoomLevel(obj)

INPUT:

obj modelit.mapviewer.AbstractTileSource

OUTPUT:

zoom integer
     with the minimum (less detailed) zoomlevel.
Help for modelit.mapviewer.RDTileSource/getMinZoomLevel is inherited from superclass modelit.mapviewer.AbstractTileSource

Public Method: getMaxZoomLevel

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

The maximum zoom value.

CALL:

zoom = getMaxZoomLevel(obj)

INPUT:

obj modelit.mapviewer.AbstractTileSource

OUTPUT:

zoom integer
     with the maximum (most detailed) zoomlevel.
Help for modelit.mapviewer.RDTileSource/getMaxZoomLevel is inherited from superclass modelit.mapviewer.AbstractTileSource

Public Method: getTileSize

Inherited from modelit.mapviewer.AbstractTileSource

DESCRIPTION:

The tilesize of the square tiles in pixels.

CALL:

tileSize = getTileSize(obj)

INPUT:

obj modelit.mapviewer.AbstractTileSource

OUTPUT:

tileSize integer
     the width and height for a tile in pixels.
Help for modelit.mapviewer.RDTileSource/getTileSize is inherited from superclass modelit.mapviewer.AbstractTileSource