Wargame grid coordinates are used for wargame calculations

Each hexagon center is a point on the cartesian grid.

Use geometry to program the hexagon grid calculations  

Use a cartesian coordinate system: a grid with x,y coordinates.

Hexagon Library: hexagon calculators that use the cartesian grid:

1. Hexagon Map Calculator How to convert pixel (x,y) to hexagon (x,y)
2. Hexagon Grid Calculator How to move from hexagon (x,y) to hexagon (x,y)
3. Hexagon Name Calculator How to convert hexagon (x,y) to hexagon name
4. Line of Sight Algorithm using the cartesian grid
5. Lines of Communication using the cartesian grid
6. A* pathfinding using the cartesian grid

Analytic geometry provides:

• counter placement on map
• range calculations
• bearing calculations
• line of sight calculations
• terrain data modeling with coordinates
• SVG calculations
• HTML5 Canvas calculations

Use cartesian cordinates.

The labels on hexagons are not coordinates.

The hexagon name is calculated.