Background layer
One or a set of data items can be configured as background layer. A background layer is automatically presented in each new map view.
The background layer usually consists of a (set of) reference layers, they can be scale dependent. In the legend of the map view they are combined to one entry called Background.
The background layerset is configured with the DialogData property for the unit for the coordinate system.
Example:
unit<fpoint> point_rd := baseunit('m', fpoint)
, DialogData = "SourceData/reference/level_III/Amsterdam/map_bw;SourceData/reference/level_III/Utrecht/map_bw";
In the example two data items are configured as Background Layer, of which ten are scale dependent. A semicolon(;) character is used as delimiter between the item names.
Since version 7.163 the GeoDMS supports web mapping services (WMS) as an alternative background layer. See WMS background layer for examples on how to configure such a WMS webservice.
