My friend and colleague (I like him even more since he told me about this!) Segev gave me this information, which he had gleaned from some old posts on ROOTtalk and a lot of experimentation. It’s a technique for setting the color palette of ROOT plots so that, for example, Graph2D with the “COLZ” option doesn’t look like total crap. I have no idea why something like this isn’t used as the default palette in ROOT.
In short, here’s before and after screenshots of the plot.
I read with satisfaction the fact that Cern’s ROOT physics and data analysis framework has finally been integrated into Debian. I assumed that this would lead to easier installation on Ubuntu and in the future, hopefully, ROOT in the Ubuntu repositories. For a brief and happy period there was a third party repository with up-to-date and semi-official ROOT packages.
My hopes were dashed with the news that the Brookhaven machine hosting the repository lost a hard disk and the Ubuntu repository was down. I frequently need access to ROOT packages, so I just recently built .debs from the lastest stable release (5.16.00). Here’s a guide as to how to make it work:
Update: I have created a CentOS 2 virtual machine image for
VirtualBox which is available for download
I’ve created a VMWare image of a RedHat 7.2 operating system. I need one for compiling and testing programs since a cluster that I sometimes use runs this aging OS, and programs that I compile on my Ubuntu laptop or the Fedora Core 6 server at the lab don’t work properly on that system.
I would love to redistribute the base image for other people who might require it but unfortunately Red Hat’s trademark protection policy prevents this. I don’t have time to go through the image and remove all the trademark-covered files, so here’s a quick guide to getting a useful system in a short time. By useful, I mean with Subversion, GSL and Boost libraries.