Hexagons at resolution 16 appear distant from each other not sharing their borders

[ManuelSpinola]

I am trying to make a grid with specific resolution for the entire world and crop it with a polygon but what I got is the hexagons not sharing their borders (like the South Africa example), they appear separated from each other. How can I make a grid of hexagons of ~ 1km2 área that cover the entire polygon?

dggs <- dgconstruct(res = 16)

cr_grid <- dgshptogrid(dggs, "areas_estrategicas/cr.shp")

[r-barnes]

It'll be very hard to debug this without more information!

Please provide a screenshot showing the issue and upload the shapefile somewhere.

[ManuelSpinola]

Sorry,

May be with this example:

dggs <- dgconstruct(res = 16)

sa_grid <- dgshptogrid(dggs, dg_shpfname_south_africa())

p <- ggplot() + geom_sf(data=sa_grid)
p

[r-barnes]

If I understand correctly, you're concerned that the grid cells for South Africa are not contiguous. That's because they cover the mainland and the offshore island, but not the area in between. It's also the expected behaviour.

If you want coverage for the area in between, maybe construct a bounding box or a convex hull and get the hexes for that?

[ManuelSpinola]

Thank you Richard.

I was thinking in a "continuous" universal grid that I can crop, but I understand that that is not the expected behavior.