JWeb : Installation on Linux

INTRODUCTION

JWeb is a point-and-click interface for display and interaction with SPIDER images and data written by Dr. Bimal Rath. JWeb is written in Java was developed and tested on Linux, SGi Irix & Windows computers.

LOADING JWeb
(May have already been done if you have installed SPIDER!)

1. Download SPIDER/Web and place it in an appropriate directory: PARENT-DIR.
   The compressed SPIDER/Web distribution takes about 180 Mb of disk space. The uncompressed whole distribution will take about 850Mb but includes libraries and executables for several different systems some of which can be discarded.
2. Uncompress the tar archive e.g.
   gunzip spiderweb.tar.gz
3. Unpack the tar archive e.g.
   tar -xvf spiderweb.tar

The following JWeb directories will be created under: PARENT-DIR/web/java

File	Contents
linux/README.jweb.linux	README file
linux/j2re-1_4_2_06-linux-i586.bin	JRE Install script
linux/jai-1_1_2_01-lib-linux-i586-jre.bin	JAI install script
linux/WEB.jar	Jweb Java archive
linux/font.properties	Jweb fonts
linux/jweb.cshrc	Necessary 'C' shell environment variables
src	Jweb source code

INSTALLATION

Install the Java Run Time Environment by executing: j2re-1_4_2_06-linux-i586.bin

chmod a+x j2re-1_4_2_06-linux-i586.bin

j2re-1_4_2_06-linux-i586.bin

Agree to license terms.

Install the Java Advanced Imaging Run Time Environment by executing: jai-1_1_2_01-lib-linux-i586-jre.bin

cd j2re1.4.2_06/

chmod u+x ../jai-1_1_2_01-lib-linux-i586-jre.bin

../jai-1_1_2_01-lib-linux-i586-jre.bin

Agree to license terms.

If you are using the 'C' shell, the next three tasks can be alternatively be done by editing the first line in: jweb.cshrc as instructed therein and then placing the contents of jweb.cshrc in your .cshrc startup file.

Create $JWEB_DIR environment variable specifying location for JWeb.

If you are using the 'C' shell, this can be done with setenv in your .cshrc startup file.

setenv   JWEB_DIR   Enter_path_of_your_JWeb_directory_here

Add Java libraries to $CLASSPATH & $LD_LIBRARY_PATH by

setenv   JAIHOME   $JWEB_DIR/j2re1.4.2_06/lib

if ( $?CLASSPATH ) then

  setenv   CLASSPATH   $JAIHOME/ext/jai_core.jar:$JAIHOME/ext/jai_codec.jar:$CLASSPATH

else

  setenv   CLASSPATH   $JAIHOME/ext/jai_core.jar:$JAIHOME/ext/jai_codec.jar

endif

setenv   CLASSPATH   $JAIHOME/ext/mlibwrapper.jar:$CLASSPATH

setenv   CLASSPATH   $JWEB_DIR/WEB.jar:$CLASSPATH

if ( $?LD_LIBRARY_PATH ) then

  setenv   LD_LIBRARY_PATH   $LD_LIBRARY_PATH/:$JAIHOME/ext/:$CLASSPATH

else

  setenv   LD_LIBRARY_PATH   $JAIHOME/ext/:$CLASSPATH

endif

Create jweb command with specified location and desired run-time memory allocation.

alias   jweb   '$JWEB_DIR/j2re1.4.2_06/bin/java   -Xmx512m -Djava.util.prefs.syncInterval=2000000 web/StartWeb'

Note that: 512m represents the maximum megabytes of memory allowed for this JAVA application. You may adjust this amount to suit your computer.

TESTING

Test JWeb :

jweb

USE MOUSE TO SELECT MENU ITEMS FROM PULL-DOWN MENUS

Further information on the use of JWeb is given in the JWeb manual.

BUGS, SUGGESTIONS

Send any bug reports or suggestions to: spider@wadsworth.org