Creation of own ArcGIS REST map service (image service, untiled requests) by URL

[sfkeller]

Currently in QMS there's the service type GDAL which refers to a "gdal_source.xml". I propose a functionality to add an own ArcGIS REST map service (image service, untiled requests) by a simple URL similar to WMS (without any xml given by the user).

Here are two ArcGIS REST map service examples:

• http://api.atlas.mos.ru/arcgis/rest/services/Basemaps/egipmap/MapServer
• http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer

Similar to WMS GetCapabilities the system can add the parameter "f=json" to the URL and get metadata about the service, like this http://api.atlas.mos.ru/arcgis/rest/services/Basemaps/egipmap/MapServer?f=json .

[MatzFan]

FYI, in case you weren't already aware of it, ESRI support a library for their ArcGIS REST API, which among other things can configure JSON requests to the API.

If you do use this it may be worth considering my suggestion in #75 to support ArcGIS custom tiling schemes by reading parameters from the MapServer URL, instead of the way I did it using new metadata.ini params