Does anyone know why 'volcano' is oriented as it is? image(volcano) ## filled.contour is the same
I know it's all arbitrary, but north-up is a pretty solid convention. Is there any reason why the classic 'image()' example data set would not default to this orientation? A Google map of the site (in Web Mercator): https://www.google.com/maps/place/Maungawhau+%2F+Mount+Eden/@-36.8763271,174.7619561,856m/data=!3m1!1e3!4m8!1m2!2m1!1smaungawhau!3m4!1s0x6d0d47db8d7bd1ff:0x8bcffe2a5c7360d2!8m2!3d-36.8666667!4d174.7666667 For image(), the north-up orientation is 't(volcano[,ncol(volcano):1])'. If you are interested in a roughly georeferenced version I have code here: https://gist.github.com/mdsumner/20fe3ffa04421bf8e0517c19085e5fd8 (Also see fortunes::fortune("conventions") ) Best, Mike -- Michael Sumner Software and Database Engineer Australian Antarctic Division Hobart, Australia e-mail: mdsum...@gmail.com [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
