orthographic: Orthographic projection

In retistruct: Retinal Reconstruction Program

Orthographic projection

Description

Orthographic projection

Usage

orthographic(r, proj.centre = cbind(phi = 0, lambda = 0), ...)

Arguments

r	Latitude-longitude coordinates in a matrix with columns labelled phi (latitude) and lambda (longitude)
proj.centre	Location of centre of projection as matrix with column names phi (elevation) and lambda (longitude).
...	Arguments not used by this projection.n

Value

Two-column matrix with columns labelled x and y of locations of projection of coordinates on plane

Author(s)

David Sterratt

References

https://en.wikipedia.org/wiki/Map_projection, http://mathworld.wolfram.com/OrthographicProjection.html

retistruct documentation built on April 3, 2025, 5:58 p.m.