> From: Martin Maechler <maechler at stat.math.ethz.ch> > To: royle at bearmtn-e0.cgd.ucar.edu > CC: lgygax at access.unizh.ch, r-help at stat.math.ethz.ch > Subject: contour labelling [was "Re: [R] image ()"] > Mime-Version: 1.0 (generated by tm-edit 7.106) > > >>>>> "Jeffrey" == Jeffrey A Royle <royle at bearmtn-e0.cgd.ucar.edu> writes: > > ..... > > Jeffrey> One other question: Contour does not appear to label contour > Jeffrey> lines. Was this a neglected detail, or a feature? > > ``neglected detail''. > I think we are glad for any volunteers to add this !I have a paid ``volunteer'' who started work yesterday. His job will include upgrading contour, image, persp etc. In addition I hope that he will also add some mapping facilities along the lines of GMT (using their shoreline database). Now would be a good time to make suggestions about desirable features. Ross -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
> include upgrading contour, image, persp etc. In addition I hope that > he will also add some mapping facilities along the lines of GMT (using > their shoreline database). > > Now would be a good time to make suggestions about desirable features.OK this may be a long shot. I often have to make a plot of like this: the heights (z) of trees in a forest (whose locations are unif rand x,y) are recorded. Now we make a 3D shaded surface plot of the (x,y,z) data. A triangular mesh is made by finding the Delaunay triangulation (nearest neighbours are connected). I am not talking about doing some form of interpolation (hence forcing the data onto a regular grid). Right now I make this type of plot with Mathematica, but it would be nice to do this in R and get rid of Mma. Thanks very much Ross for getting the persp() function into R. Bill -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
On Fri, 4 Dec 1998, Ross Ihaka wrote:> I have a paid ``volunteer'' who started work yesterday. His job will > include upgrading contour, image, persp etc. In addition I hope that > he will also add some mapping facilities along the lines of GMT (using > their shoreline database).Great!> > Now would be a good time to make suggestions about desirable features.- ability to save and re-plot contours (e.g., for doing contours with annotation, or selecting different pieces of a contour "object") - a good way to save the state of the last perspective used (in S-PLUS 3.3 and earlier you have to keep a "perspective" object around and pass it with every call - flexible ways of specifying 3-D objects to add to a perspective plot, grids for back and sides of plot space, etc. I always found the S-PLUS 3-D plotting routines klugey and fragile (for example, you had to play around a lot with margins a lot in non-obvious ways just to get things to show up on the plot) and it would/will be lovely to have open, robust 3-D plotting primitives. thanks, Ben Bolker -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._