C	External Viewers

Introduction

NCSA Mosaic uses external viewers to display the variety of data file formats 
(images, video, audio, PostScript) on the Internet. Unless noted, software 
listed is free. 

Obtaining Software

From NCSA

The NCSA anonymous FTP subdirectory Mosaic/Unix/viewers has copies 
of the normal source distributions of some viewers. NCSA strongly recom-
mends downloading and installing these viewers if they are not already on 
your system, because Mosaic is more useful with them available. (The version 
numbers listed here may vary.) See ÒFrom Other SourcesÓ on pageÊCÐ1 for 
basic information about the software functionality.

¥	ghostscript-2.5.2.tar.z

¥	ghostscript-2.6.tar.z

¥	ghostscript-fonts-2.5.2.tar.z

¥	ghostscript-fonts-2.6.tar.z

¥	ghostview-1.4.1.tar.z

¥	mm.tar.Z

¥	mpeg_play-2.0.tar.Z

¥	xdvi.tar.Z

¥	xplaygizmo

¥	xv-3.00.tar.Z

If you need information about installing external viewers, talk with your local 
system administrator. In general, you need to uncompress, untar, and compile 
the files obtained from the anonymous FTP servers. Not all viewers work well 
with all machines. The README file in the software directory usually contains 
information about hardware compatibility.

From Other Sources

ghostview

ghostview is the user interface to the ghostscript viewer for PostScript Òtype-
setÓ documents. ghostview may be obtained from the UIUC anonymous FTP 
server (uxc.cso.uiuc.edu). Download the following files: 

/gnu/ghostscript-2.5.2.tar.Z

/gnu/ghostscript-fonts-2.5.2.tar.Z

/gnu/ghostview-1.4.1.tar

mpeg-play

mpeg-play displays MPEG-format animation sequences and video clips. mpeg-
play may be obtained from the University of California at BerkeleyÕs anony-
mous FTP server (toe.cs.berkeley.edu). Download the following file:

/pub/multimedia/mpeg/mpeg_play-2.0.tar.Z

showaudio and metamail

showaudio is a shell script that can play several audio formats on several plat-
forms and is part of the metamail multimedia mail toolkit. metamail processes 
multimedia documents in the MIME format. Obtain metamail from BellcoreÕs 
anonymous FTP server (thumper.bellcore.com). Download the following 
file (where x refers to the specific version currently available):

/pub/nsb/mm2.x.tar.Z

xdvi

xdvi is a viewer for documents in the DVI format produced by TeX. The xdvi 
viewer is available from this anonymous FTP server (ftp.x.org). Download 
the following file:

/contrib/xdvi.tar.Z

xv

xv is an image display and manipulation utility for GIF, JPEG, TIFF, and sev-
eral other formats of image files. xv is shareware. Connect to this anonymous 
FTP server (ftp.cis.upenn.edu) and change to the directory listed below to 
copy the program:

/pub/xv