generating coordinates at equal geographical distances

And you can compare the results with those of the
'regularCoordinates' function in geosphere.  Robert

On Sat, Aug 31, 2013 at 1:05 PM, Edzer Pebesma
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John, as an alternative you may want to look into sp::spsample, using
type "Fibonacci"; the paper describing this is

Alvaro Gonzalez, 2010. Measurement of Areas on a Sphere Using
Fibonacci and Latitude-Longitude Lattices. Mathematical Geosciences
42(1), p. 49-64

On 08/28/2013 07:27 PM, john d wrote:
Ok, I'll be more explicit :)

If I want to generate random coordinates across North America by
uniformly sampling latitudes and longitudes, the geographical
distance between these coordinates would decrease towards higher
latitudes. I'd like to be able to generate coordinates (e.g. a
grid) such that the geographical distances between coordinates
would be constant regardless of latitude.

On Wed, Aug 28, 2013 at 12:04 PM, Barry Rowlingson <
b.rowlingson at lancaster.ac.uk> wrote:

You will find that any two coordinates are equidistant from each
other...

So my suggestion is you need to expand you question a bit more!
:)

On Wed, Aug 28, 2013 at 3:49 PM, john d <dobzhanski at gmail.com>
wrote:
Dear all,

I need to generate coordinates that are equidistant, regardless
of latitude. Any suggestions?

Thanks!

John

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- --
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of M?nster
Heisenbergstra?e 2, 48149 M?nster, Germany. Phone: +49 251
83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
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