[R] Re: Mapping in R - in the common sense

Christophe Declercq cdeclercq at nordnet.fr
Wed Nov 21 19:30:22 CET 2001

> -----Message d'origine-----
> De : owner-r-help at stat.math.ethz.ch
> [mailto:owner-r-help at stat.math.ethz.ch]De la part de Zsombor
> Cseres-Gergely
> Envoyé : mercredi 21 novembre 2001 17:21
> À : Roger Bivand
> Cc : r-help at stat.math.ethz.ch
> Objet : Re: [R] Re: Mapping in R - in the common sense
> Thank you for the help. I have installed the functions and the Intel
> version maps. I have tried the world map and those of the USA -- they
> look nice and useful.
> I am offered actually offered MapInfo maps, but have no idea how to
> convert them to use in this framework. Moreover, I do not
> have MapInfo
> itself, so I can not check wherther it is willing to output
> its knowledge
> in any useful form. Is there any experience with this?

I have not yet used the maps library but the MapInfo Interchange File
(MIF) format is well and publicly documented (see

Actually, you get 2 files: a MIF file with geographic data and a MID
file with attributes data.

It's not that difficult to parse, with a perl script for example.

I have used that way to draw cities contours behind a filled.contour
plot. The contours came from GeoConcept, a french GIS package wich can
export in the MIF format (you will have to be careful with datum and
projections, but they are written in the MIF file).

Hope it helps.

Christophe DECLERCQ, MD
Observatoire Régional de la Santé Nord-Pas-de-Calais
13, rue Faidherbe 59046 LILLE Cedex FRANCE
Phone +33 3 20 15 49 24
Fax   +33 3 20 55 92 30
E-mail c.declercq at orsnpdc.org

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