Terrain Types and Reference grid coordinates

Terrain data is saved as a terrain type with reference x,y grid coordinate. These reference grid coordinates identify the location of the terrain on the map. Wargame calculations use analytic geometry to determine unit placement, zone of control, line of sight and lines of communication. They can also be used as a point to draw graphics.

Examples of terrain types

• woods
• hills
• city
• town
• road
• river
• slope

4 types of reference grid coordinates.

• hexagon grid coordinate
  
    wood, hills, city and town hexagon terrain  
  
  uses a hexagonPoint coordinate : Terrain will be will be referenced by a point at the center of the hexagon.


• hexside grid coordinate
  
    river hexside terrain 
  
  uses a gridPoint coordinate : Terrain will be referenced by a midpoint at the center of the hexside.


• path grid coordinate
  
    road path terrain  (midpoint hexside and centers to create a path)
  
  uses a gridPoint coordinate : Terrain will be referenced by both midpoint hexsides and a point at the center of the hexagon.


• hexside edge grid coordinate
  
    slope hexside edge terrain 
  
  uses a edgePoint coordinate : terrain attached to the edge of a hexside. Terrain will be referenced by a point at the midpoint between the center and the hexside.