hexify_forward: Forward Snyder projection

In hexify: Equal-Area Hex Grids on the 'Snyder' 'ISEA' 'Icosahedron'

Forward Snyder projection

Description

Projects geographic coordinates onto the icosahedron, returning face index and planar coordinates (tx, ty).

Usage

hexify_forward(lon, lat)

Arguments

lon	Longitude in degrees
lat	Latitude in degrees

Details

tx and ty are normalized coordinates within the triangular face, typically in range [0, 1].

Value

Named numeric vector: c(face, tx, ty)

See Also

Other projection: hexify_build_icosa(), hexify_face_centers(), hexify_forward_to_face(), hexify_get_precision(), hexify_inverse(), hexify_projection_stats(), hexify_set_precision(), hexify_set_verbose(), hexify_which_face()

Examples

result <- hexify_forward(16.37, 48.21)
# result["face"], result["icosa_triangle_x"], result["icosa_triangle_y"]

hexify documentation built on March 1, 2026, 1:07 a.m.