SlackBuildsOrg/system/gdmap

GdMap is a tool which allows to visualize disk space. To display directory
structures cushion treemaps are used which visualize a complete folder or even
the whole hard drive with one picture. Cushion treemaps display directories
and files in rectangular areas. The larger a file is the larger is the
rectangle which represents it. All files in one directory are painted within
the rectangle of that directory.