Dear all, I am using package rgl and I want to change the position where I "stand". Maybe a small example might clarify what I am looking for:
# Begininng of explanatory example library(rgl) data(volcano) # the example ?rgl.surface y <- 2 * volcano x <- 10 * (1:nrow(y)) z <- 10 * (1:ncol(y)) ylim <- range(y) ylen <- ylim[2] - ylim[1] + 1 colorlut <- terrain.colors(ylen) col <- colorlut[ y-ylim[1]+1 ] rgl.open() rgl.surface(x, z, y, color=col, back="lines") ## now I have the nice volcano surface ## with rgl.viewpoint I can change the elevation ## and the angle from where I look at the rgl.surface # example of ?rgl.viewpoint start <- proc.time()[3] while ((i <- 36*(proc.time()[3]-start)) < 360) { rgl.viewpoint(i,i/4); } # End of explanatory example What I am looking for (in this example) would be a way for me to "stand" on the crater of the volcano, looking in a specific direction. Is there something like a function where I can specify my coordinates (x,y,z) and angle and a zoom factor? Thank you, Roland ---------- This mail has been sent through the MPI for Demographic ...{{dropped:2}} ______________________________________________ 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.