simProjWiz: Simple Projection Wizard

In rCAT: Conservation Assessment Tools

Description

Projects any set of lat long points to a "suitable" area projection, based on it's "true centre of gravity"

Usage

simProjWiz(thepoints, thecentre)

Arguments

thepoints	set of points in latitude and longtitude ie c(lat,long)
thecentre	one point ie c(lat,long)

Details

Simple equal area projection wizard

Value

set of points in metres (x,y)

Note

Based around a simple continental projection, using two sets of projections equal area cylindrical = Cylindrical equal-area = 8287 equal area azimuthal for polar (above 70) = Lambert azimuthal equal-area

note these are not cartographically pleasing projections, they are just so we can get the data into something simple for areal analysis See below for a more cartographically pleasing projection engine

Šavric, B., Jenny, B., Jenny, H., 2016. Projection Wizard – An Online Map Projection Selection Tool. Cartogr. J. 53, 1–9. doi:10.1080/00087041.2015.1131938

Author(s)

Justin Moat. [e-mail]

References

Šavric, B., Jenny, B., Jenny, H., 2016. Projection Wizard – An Online Map Projection Selection Tool. Cartogr. J. 53, 1–9. doi:10.1080/00087041.2015.1131938

Snyder, J.P., 1987. Map projections: A working manual, Professional Paper. Washington, D.C.

Examples

lat <- runif (200,-24,-12)
long <- runif (200,43,51)
ll <- data.frame(lat,long)
cp <- trueCOGll(ll)
pointsprojected <- simProjWiz(ll,cp)

rCAT documentation built on July 8, 2020, 6:22 p.m.