Hi
Pedro Barros wrote: > Hi All, > > I am trying to find out how to access the components of a ggplot plot, and I > found this reply from Paul Murrel > http://www.nabble.com/navigating-ggplot-viewports-tt14826352.html#a15056223. > I tried it, and it works. > However, I am trying to develop some functions that will do the drawing > "automatically", and usually I will not know the full name of the grob that > has the layout vp, like "plot.gtree.76". Is there a way that I can repeat > the same process, without going through the grid.ls step? Being able to divine the names of grobs (and viewports) is dependent on the system being used to name the grobs/viewports. One approach, taken in lattice for viewports, is to provide a function, e.g., trellis.vpname(), that builds a name from salient bits of information, e.g., panel numbers. Another important source of information is documentation of the naming scheme, e.g., for ggplot2, Hadley's http://had.co.nz/ggplot2/book/grid.pdf Paul > > Thanks, > Pedro -- Dr Paul Murrell Department of Statistics The University of Auckland Private Bag 92019 Auckland New Zealand 64 9 3737599 x85392 [EMAIL PROTECTED] http://www.stat.auckland.ac.nz/~paul/ ______________________________________________ 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.
