Sinusoidal projection
sinusoidal(
r,
proj.centre = cbind(phi = 0, lambda = 0),
lambdalim = NULL,
lines = FALSE,
...
)Latitude-longitude coordinates in a matrix with columns
labelled phi (latitude) and lambda
(longitude). Alternatively string "boundary", indicating that
boundary of projection should be drawn.
Location of centre of projection as matrix with
column names phi (elevation) and lambda
(longitude). Currently only longitude is used by this function.
Limits of longitude to plot
If this is TRUE create breaks of NAs
when lines cross the limits of longitude. This prevents lines
crossing the centre of the projection.
Arguments not used by this projection.
Two-column matrix with columns labelled x and
y of locations of projection of coordinates on plane
http://en.wikipedia.org/wiki/Map_projection, http://mathworld.wolfram.com/SinusoidalProjection.html