Function cdshealpix::largest_center_to_vertex_distance
source · pub fn largest_center_to_vertex_distance(depth: u8, lon: f64, lat: f64) -> f64
Expand description
Returns an upper limit on the distance between a cell center around the given position and its furthest vertex.
§Params
depth
the depth of the celllon
the longitude of the point on the unit-sphere, in radianslat
the latitude of the point on the unit-sphere, in radians
§Result
The following plot shows, for the depth 8, the real largest distances (in red) and the result
of this method (in blue).
WARNING: the units of (lon, lat)
on the plot are degrees, while the distance is in mas
Credit: plot made using TOPCAT