SciDAVis distributes binaries (usually for Windows and MacOS) which can be downloaded from the SciDAVis page on Sourceforge. Many Linux distributions have SciDAVis binaries in their repositories. You can also find the latest SciDAVis version for some distributions at the openSUSE build service. SciDAVis can be built easily on Arch Linux and Slackware at AUR and SlackBuilds.org, respectively.