Hi, It would be difficult but not impossible to bring ggobi to play here. The biggest issue is, as always, which event loop is in control, R, GTK, QGIS? Managing so many layers can be daunting and slow. There was some discussion on the ggobi list about embedding ggobi in manifold, which is a commercial package and windows only, and, ... IT would be really nice to get a spatial eda application that incorporates spatial attributes. Some of the old ArcView-xgobi link code has been ported into ggobi as the variogram cloud plugin. I know there is (or was) interest among the ggobi developers in getting a spatial application working to allow brushing of maps in a linked environment. Anyway I am rambling.
Hope this helps Nicholas > Date: Tue, 13 May 2008 22:19:07 +0100 > From: Barry Rowlingson <[EMAIL PROTECTED]> > Subject: Re: [R-sig-Geo] Qgis-user Digest, Vol 27, Issue 13 > To: Carson Farmer <[EMAIL PROTECTED]> > Cc: [EMAIL PROTECTED], r-sig-geo@stat.math.ethz.ch > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Carson Farmer wrote: > > I think in the end this would > > require an ogr/gdal driver for sp objects as Barry Rowlingson has > > previously suggested here, and in the r-sig-geo lists. > > Progress on this has been minimal: I managed to create an ogr driver > with a new name! There's a few places that you need to edit to link in > the new driver in the ogr build system. Then I started to worry about > how to link in to libR.so and stopped there. I need to find out how the > OGR build system works with other library dependencies, and that > probably means understanding autoconf... Beyond me at the moment... > > > I have started to look at some brushing and linking functions using the > > iPlots R package, and should hopefully be able to implement some of > > these things in the future...? > > Isn't the ultimate in linking and brushing GGobi? There's a link from > R to GGobi for displaying R data in GGobi. What might be nice would be a > GGobi plugin for Qgis - set up so that brushed items in the GGobi view > are highlighted in the Qgis map. > > I've looked at the C code in the R-GGobi interface and it looks very > difficult.... > > Barry > > > _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
