View source for Terrain Type

[[File:Api_current_situation_geography.png|thumb|right|400px|[[Terrain Type]]s in relation to [[Terrain]]s and [[Terrain Type Override]]s.]]
Terrain types are definitions of how the ground behaves. Oftentimes, the (sub)soil consists of a mixture of various types of material. Each individual material can be considered a type of terrain, the combination of materials can be considered a type of terrain as well.

Terrain Types in the {{software}} are abstract definitions of either a surface or ground composition of the [[Terrain]]. In other words, every Terrain Type belongs either to the {{inlink|surface}} [[layer]] or the {{inlink|underground}} [[layer]]. Each Terrain Type has a series of [[Attribute]]s defining its exact properties and behavior, both for functionalities such as the generation of the default [[elevation model]], as well as for calculation models ranging from the Average Overlay to the Water Overlay.

Terrain types do not contains spatial information. Instead they form an integral part of [[Terrain]]s, which themselves do contain spatial information. Every [[Terrain]] item links to one [[Terrain Type]], which in turn determines in what [[layer]] the Terrain is situated.

===Surface===
Surface Terrain Types represent the soil as as it lies on the very top of the [[Terrain]]. It is often a single layer such as [[Grassland (Terrain Type)|Grassland]], [[Concrete (Terrain Type)|Concrete]], or a [[Waterway]]. In most cases, the surface Terrain Type also affects the visualization of the height-map in the [[3D Visualization]]. [[Water (Terrain Attribute)|Water]] is most obvious, as water will be drawn on top of the existing [[Terrain]]. However, all Terrain Types have a set texture which will be shown in any location where the [[Terrain]] is changed for a different Terrain Type. (Otherwise the default [[satellite map]] will be visible.)

See [[List of Terrain Types#Surface Terrain Types|List of Terrain Types]] for all available Surface Terrain Types.

===Underground===
Underground Terrain Types represent the subsoil; everything beneath the surface. The underground Terrain Type is still considered present as much as the surface Terrain Type in the same location, but is not displayed directly in the 3D Visualization. The layout of the underground can be seen using the [[Underground Overlay]].

See [[List of Terrain Types#Underground Terrain Types|List of Terrain Types]] for all available Underground Terrain Types.

==Attributes==
Each surface and ground Terrain Type may contain or inherit the following attributes:
{{:Terrain Attributes}}

{{article end
|seealso=
* [[Terrain]]
* [[BOFEK ID]]
* [[Elevation model]]
* [[List of Terrain Types]]
* [[Terrain (TQL Param)]]
|howtos=
* [[How to manually change the Terrain]]
* [[How to change heightmap based on vector data]]
|api=*[[Api session items terraintypes]]
*[[Api session event editor terraintype]]
}}
{{Editor current situation nav}}
[[Category:Items]][[Category:Terrain]]