MapSource

Object Hierarchy:

Description:

[ CCode ( type_id = "shumate_map_source_get_type ()" ) ]
public abstract class MapSource : Object

The base class for all map sources.

Map sources fill [class@Tile] objects with images from various sources: a web API, for example, or a test pattern generated on demand.

The most common map source is [class@RasterRenderer], which fetches tiles using a [class@TileDownloader].

All known sub-classes:

RasterRenderer

VectorRenderer

Namespace: Shumate

Package: shumate-1.0

Content:

Properties:

public string id { get; set construct; }
The id of the map source
public string license { get; set construct; }
The usage license of the map source
public string license_uri { get; set construct; }
The usage license's uri for more information
public uint max_zoom_level { get; set construct; }
The maximum zoom level
public uint min_zoom_level { get; set construct; }
The minimum zoom level
public string name { get; set construct; }
The name of the map source
public MapProjection projection { get; set construct; }
The map projection of the map source
public uint tile_size { get; set construct; }
The tile size of the map source

Creation methods:

protected MapSource ()

Methods:

public virtual async bool fill_tile_async (Tile tile, Cancellable? cancellable) throws Error
Asynchronous version of shumate_map_source_fill_tile.
public uint get_column_count (uint zoom_level)
Gets the number of tiles in a column at this zoom level for this map source.
public unowned string get_id ()
Gets map source's id.
public double get_latitude (double zoom_level, double y)
Gets the latitude corresponding to this y position in the map source's projection.
public unowned string get_license ()
Gets map source's license.
public unowned string get_license_uri ()
Gets map source's license URI.
public double get_longitude (double zoom_level, double x)
Gets the longitude corresponding to this x position in the map source's projection.
public uint get_max_zoom_level ()
Gets map source's maximum zoom level.
public double get_meters_per_pixel (double zoom_level, double latitude, double longitude)
Gets meters per pixel at the position on the map using this map source's projection.
public uint get_min_zoom_level ()
Gets map source's minimum zoom level.
public unowned string get_name ()
Gets map source's name.
public MapProjection get_projection ()
Gets map source's projection.
public uint get_row_count (uint zoom_level)
Gets the number of tiles in a row at this zoom level for this map source.
public uint get_tile_size ()
Gets map source's tile size.
public double get_tile_size_at_zoom (double zoom_level)
Gets the apparent size of the map tiles at the given fractional zoom level.
public double get_x (double zoom_level, double longitude)
Gets the x position on the map using this map source's projection.
public double get_y (double zoom_level, double latitude)
Gets the y position on the map using this map source's projection.
public void set_id (string id)
Sets the map source's id.
public void set_license (string license)
Sets the map source's license.
public void set_license_uri (string license_uri)
Sets the map source's license URI.
public void set_max_zoom_level (uint zoom_level)
Sets the map source's maximum zoom level.
public void set_min_zoom_level (uint zoom_level)
Sets the map source's minimal zoom level.
public void set_name (string name)
Sets the map source's name.
public void set_projection (MapProjection projection)
Sets the map source's projection.
public void set_tile_size (uint tile_size)
Sets the map source's tile size.

Inherited Members:

All known members inherited from class GLib.Object