Convert Quad IJ to Quad XY (continuous coordinates)

Converts discrete cell indices to continuous quad coordinates. Useful for computing cell centers or understanding the cell geometry.

Usage

hexify_quad_ij_to_xy(quad, i, j, resolution, aperture = 3L)

Arguments

quad

Quad number (0-11)

i

Cell index along first axis

j

Cell index along second axis

resolution

Grid resolution level

aperture

Grid aperture: 3, 4, or 7

Value

List with components:

quad_x

Continuous X coordinate in quad space

quad_y

Continuous Y coordinate in quad space

See also

Other coordinate conversion: hexify_cell_id_to_quad_ij(), hexify_cell_to_icosa_tri(), hexify_cell_to_lonlat(), hexify_cell_to_plane(), hexify_cell_to_quad_ij(), hexify_cell_to_quad_xy(), hexify_grid_cell_to_lonlat(), hexify_grid_to_cell(), hexify_icosa_tri_to_plane(), hexify_icosa_tri_to_quad_ij(), hexify_icosa_tri_to_quad_xy(), hexify_lonlat_to_cell(), hexify_lonlat_to_plane(), hexify_lonlat_to_quad_ij(), hexify_quad_ij_to_cell(), hexify_quad_ij_to_icosa_tri(), hexify_quad_xy_to_cell(), hexify_quad_xy_to_icosa_tri(), hexify_roundtrip_test()

Examples

if (FALSE) { # \dontrun{
# Get continuous quad coordinates for a cell
xy <- hexify_quad_ij_to_xy(quad = 1, i = 100, j = 50,
                           resolution = 10, aperture = 3)
print(xy)
} # }