Thank you all for the suggestions and answers. Oliver
On Mar 12, 6:51 am, Duncan Murdoch <murd...@stats.uwo.ca> wrote: > On 11/03/2009 11:35 PM, Oliver wrote: > > > hi, all > > > I am looking at R package RGL to draw a colored mesh/surface plot like > > this one (from matlab). > >http://www.mathworks.com/access/helpdesk/help/techdoc/visualize/cbar.gif > > > The key features I am looking for is surfaced with grid and color, but > > not the terrain-like gradient. but I didn't come even close to it > > after browsing through rgl help file. > > It is a little tricky to draw both lines and solid colours on a surface > in rgl, because one will hide the other: there's no way to turn off the > hidden object removal in rgl. > > The easiest way to do it would be to draw the grid slightly above the > surface. For example, > > x <- seq(-2, 2, len=17) > y <- seq(-2, 2, len=17) > z <- outer(x,y, function(x,y) exp(-y^2)*sin(1.5*x)) > color <- rainbow(41)[1+round(10*outer(x,y, function(x,y) x^2 + y^2))] > > persp3d(x,y,z, color=color, smooth=FALSE) > surface3d(x,y,z+0.001, front="lines", back="culled") > > (Fiddle with the 0.001 value if the grid disappears behind the surface, > or floats too high above it.) > > Another way would be to draw the grid (and maybe the colour) as a texture. > > Duncan Murdoch > > > have anyone drawn something like this before, is this doable afterall? > > > thanks > > > Oliver > > > ______________________________________________ > > r-h...@r-project.org mailing list > >https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ > r-h...@r-project.org mailing listhttps://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ 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.