How to create a rectangle map HexGrid?

[toannth]

Any sample code to create a 7x7 HexGrid like this?

[BorisTheBrave]

I should probably make a utility for this. You cannot do it with bounds, you need a mask.

For now, I suggest the following (untested):

var hexGrid = new HexGrid(1);
var cells = hexGrid.GetCellsIntersectsApprox(...);
var maskedGrid = hexGrid.Masked(cells.ToHashSet());

GetCellsIntersectsApprox is exact for hex grids.