Orthophoto images are generated from satellite imagery or aerial photography. In the case of aerial photography, the raw frames are matched and resolved into photo blocks. Then, they and geometrically corrected (using DTM), anchored to well-known points, visually improved, and assembled into a homogeneous orthophoto mosaic, which can be combined of multiple files.
A discrete layer represents a geographical region and is composed of multiple orthophoto mosaics with the same resolution, color scheme, and classification. A discrete layer can be included in the best mosaic, a universal map which is a fusion of multiple discrete layers.
World Geodetic System of WGS 84 (also known as WGS 1984 ensemble: EPSG:4326 for 2D coordinate reference system (CRS))
Raster Map projection
Latitude / Longitude Projection
Raster Best Practice Protocol
WMTS
Raster Tiling scheme
InspireCRS84Quad (World CRS84 TileMatrixSet), That tiling schemes consists of two 256x256 tiles at its zoom level 0, in EPSG:4326 CRS, with extent in longitude in the range [-180,180] and in latitude in the range [-90,90].
Raster Tile Size
256*256
Raster Tile Format
PNG / JPEG
Auth token
A JWT token (you can aquire it by contacting our product owner) for raster services passed via http QUERY_PARAM. There are different kinds of token permissions (raster catalog, map, export, etc.. services)
Zoom Level
The layer zoom level is determined by the field mc:maxResolutionDeg, the zoom level is calculated by the tiling scheme below (Pixel Size (degrees) is maxResolutionDeg), for example, for the following mc:maxResolutionDeg 2.14577E-05 >= resolution > 1.07288E-05 a zoom level of 15 will be created.
