An Orbit Tile Map Service resource connection file (*.otm) is a file reference to a Tile Map Service.
It is strongly advised to read first the documentation about Web-based Resources.
The Orbit Tile Map Service driver relies on a tile engine, a computer graphics technique which generates a larger graphic from re-using a number of smaller graphics to minimize data traffic and increase real-time rendering performance.
Tiled maps are composed of a set of scale-appropriate cartographic renderings, each divided up into regularly spaced image tiles, called Tilesets.
Generic
Custom configuration settings :
Format=Generic MapUrl=http://tile.openstreetmap.org/<Level>/<TileX>/<TileY>.png Levels=19
OpenStreetMap
Default configuration settings OpenStreetMap :
Format=OpenStreetMap MapUrl=http://tile.openstreetmap.org Levels=19
A Web Service reference file simplifies use of Web resources and enables additional configurations :
Create and edit the .otm file using a simple text editor (e.g. Notepad). Take care of spelling and file syntax.
The resource can be accompanied by an Orbit Legend File and Orbit Resource Descriptor.
A Tile Map Service is most likely georeferenced. The resource coordinate system must be defined via the associated .ord file, just like other regular file based resources.
The CRS for OpenStreetMap is “WGS 84 / World Mercator” EPSG 3395.
If the tile service is using another coordinate system, you can define custom georeference transformation for the top tile, using a .geo file.
Esri World Imagery
https://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer
esri_world_imagery.zip
Format=Generic MapUrl=https://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer/tile/<Level>/<TileY>/<TileX>.jpg Levels=23 DiskCacheName=services.arcgisonline.com.World_Imagery
PDOK BRT Achtergrondkaart
https://www.pdok.nl
.otm creation.
Format=WMTS MapUrl=https://geodata.nationaalgeoregister.nl/tiles/service/wmts Layer=brtachtergrondkaart PreferredCRS=28992 TransparentColor=255.255.255 UserName= Password=
OpenStreetmap
http://www.openstreetmap.org
openstreetmap.zip
Format=OpenStreetMap MapUrl=http://a.tile.openstreetmap.org http://b.tile.openstreetmap.org http://c.tile.openstreetmap.org Levels=19 DiskCacheName=openstreetmap