Message HrzProtocol.Grid
Defined in hrz/protocol/layer/grid.proto.
extent: float
Extent of the plane. Unit is set with extent_unit.
extent_unit: HrzProtocol.UiSizeUnit
cell_size: float
This is the reference size of a grid cell in meters. Every square in the
grid then has a size which is 10^LOD * cell_size where LOD is
automatically computed.
color: HrzProtocol.Color
Grid lines are always rendered with full opacity thus only use the RGB components. The grid background colour uses all the component. Therefore, the opacity can be set to 0 when only the grid lines need to be displayed.