contour labelling [was "Re: [R] image ()"]
Prof Brian D Ripley
ripley at stats.ox.ac.uk
Fri Dec 4 08:34:26 CET 1998
On Thu, 3 Dec 1998, Ben Bolker wrote:
> 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).
> > 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.
I assume that means S 3-D plotting routines: the last five years have
brought Trellis and Axum versions to S-PLUS. Interactive rotation of
perspective plots would be a great boon, as would shading options for
perspective plots, including contouring on such plots.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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