Hello, I am a complete newbie and would be grateful for any hints if it is possible to create Aitoff projections over some Z parameter in the dataframe using some geo package? It would be used for astronomy data mining. I use r-postgres to fetch data so postgres gis extensions could be of use as well. Best regards, Krzysztof
Aitoff projection for histograms
2 messages · Krzysztof Nienartowicz, Roger Bivand
2 days later
On Wed, 28 Jul 2010, Krzysztof Nienartowicz wrote:
Hello, I am a complete newbie and would be grateful for any hints if it is possible to create Aitoff projections over some Z parameter in the dataframe using some geo package? It would be used for astronomy data mining. I use r-postgres to fetch data so postgres gis extensions could be of use as well.
Using the PROJ.4 library through rgdal, you may find +proj=aitoff relevant in your CRS (coordinate reference system) definition. I suggest testing with caution on known pairs of coordinates to work out the syntax, until you are sure that it is giving you what you need. Roger
Best regards, Krzysztof
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Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business Administration, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no