[R-sig-Geo] making wrld_simpl longitude borders something other than (-180, 180)

[Frede Aakmann Tøgersen]

Hi Nick

To be honest I do not understand your question so I am guessing that you probably only need to set the xlim to c(-100, 100). Here is an example:

> data(wrld_simpl)
> plot(wrld_simpl)
> plot(wrld_simpl, xlim = c(-100, 100))

Why would one wants to redefine the longitudes from the interval (-180, 180) to (-100, 100)?


Yours sincerely / Med venlig hilsen

Frede Aakmann Tøgersen
Specialist, M.Sc., Ph.D.
Plant Performance & Modeling

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-----Original Message-----
From: R-sig-Geo [mailto:r-sig-geo-bounces at r-project.org] On Behalf Of Nick Matzke
Sent: 14. september 2015 06:51
To: r-sig-geo at stat.math.ethz.ch
Subject: [R-sig-Geo] making wrld_simpl longitude borders something other than (-180, 180)

Hi all,

I would like to plot wrld_simpl, but have the left and right edges of the
map be at something like 100 degrees longitude, rather than (-180, 180).

I tried messing with the bounding box with no luck.

I can imagine something like burrowing into the object and subtracting 80
degrees from all the longitudes, but I suspect there must be a better way?

Any help appreciated!
Nick

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