Hi thanks for your reply, I'll try to better explain my request... the data do not come from a file with a specific extension, this is just some lines I copied pasted from a source html file
The web page is: http://www.insee.fr/fr/ppp/bases-de-donnees/donnees-detaillees/duicq/accueil.asp it displays an (interactive) map of France with all the regions to access the source: edit/source , or Ctrl+U in a web browser By the middle of the html source file, there is an html object called map (<map> ... </map>) with a set of coordinates representing the polygons of each region, These coordinates are just location of points: x1,y1,x2,y2,x3,y3... that draw polygons. They are not proper longitude or latitude and their "origine" is just the corner of the image the html file generates... I am aware those are not "real" geographic data (That's why I didn't post my question to sig-geo, it looks more like a problem of graphics), but these are the coordinates one need to "draw" a map (and eventually import it to a more specific package like spatstat) So, what I would like to do is: using those coordinates to draw such a map, and eventually use that map for distance or area calculus (which do not need to be extremely precise...) sylvain 2010/3/3 Michael Denslow <michael.dens...@gmail.com>: > Hi Sylvian, > > > On Tue, Mar 2, 2010 at 1:15 PM, sylvain willart > <sylvain.will...@gmail.com> wrote: >> Dear R users, >> >> I would like to draw map and import it in maptools/spatstat packages. >> >> The 'raw data' I have come from a web page (<map>...</map>) and are >> basically a list of coordinates of a polygon. >> >> I would like to know how to import them in R; I checked the maptools >> packages, but all the examples use existing .dbf files. >> >> I just have a (serie of) text file(s) looking like this: >> >> For example, for the French Region Burgundy: >> >> <area href="region.asp?reg=26" shape="poly" title="Bourgogne" >> alt="Bourgogne" >> coords="208,121,211,115,221,113,224,115,225,120,229,122,232,128,251,125,255, >> 130,256,136,266,138,268,148,267,154,263,160,267,168,267,180,262, >> 175,256,178,254,184,248,184,243,187,237,187,232,185,234,181,227, >> 171,216,171,212,166,211,155,208,149,208,135,211,132,213,125,208, >> 121"> > > It is not clear (to me) from your example what kind of file this is. > Maybe XML, it does not look like GML. readOGR() in the rgdal package > may be a better route to explore, but you need to determine what file > structure is first. > >> any idea welcome, >> >> sylvain >> >> (If anayone is interested with that type of data, they're available at >> the INSEE website > > I can not easily find an example on this site. Perhaps you could > provide a direct link to the file. Lastly, I suspect that the > r-sig-geo mailing list would get you some better answers. > > Michael > > -- > Michael Denslow > > I.W. Carpenter Jr. Herbarium [BOON] > Department of Biology > Appalachian State University > Boone, North Carolina U.S.A. > -- AND -- > Communications Manager > Southeast Regional Network of Expertise and Collections > sernec.org > > 36.214177, -81.681480 +/- 3103 meters > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.