plotctrl : wxPlotCtrl is a interactive xy data plotting widgets ( http://wxcode.sourceforge.net/ )
wxfreechart : wxFreeChart is the free crossplatform chart library based on wxWidgets ( http://wxcode.sourceforge.net/ )
wxthings : wxThings is a variety of data containers and controls ( http://wxcode.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a alatar-lay
For Paludis use this rsync : rsync://gentoo.zugaina.org/alatar-lay-portage
If you have a problem : ycarus(-at-)zugaina.org