So at home I am using Debian and at work we are using Redhat. Both systems are completely different and coming from Debian Redhat looks pretty weird.

First of all both systems don't come with a decent Java installation. RH seems to put per default the gcj-stuff on I could rant about for hours. Anyway you will have to download the JDK from SUN and install it. On Debian I used the tar.gz version which did a fabulous job -- on RH I used the .rpm version which just threw the whole installation in /usr/java and left the gcj stuff intact, e.g. /usr/bin/java links to gcj...

Then you download VTK (Version 4.4) and Cmake, follow the instructions, enter ccmake . and then use "t" to change some things in the expert mode (especially RH tends to put in the gcj stuff so be sure to do that and also make ln -sf /usr/java/j2sdk<your favorite version> /usr/local/java)

Java-Settings (Debian):
JAVACOMMAND /usr/local/java/bin/java
JAVA_ARCHIVE /usr/local/java/bin/jar
JAVA_AWT_INCLUDE_PATH /usr/local/lib/java/include
JAVA_AWT_LIBRARY /usr/local/lib/java/jre/lib/i386/libjawt.so
JAVA_COMPILE /usr/local/java/bin/javac
JAVA_INCLUDE_PATH /usr/local/lib/java/include
JAVA_INCLUDE_PATH2 /usr/local/lib/java/include/linux
JAVA_RUNTIME /usr/local/java/bin/java


Normal Settings (no "t")

BUILD_EXAMPLES ON
BUILD_SHARED_LIBS ON
CMAKE_BACKWARDS_COMPATIBILITY 2.2
CMAKE_BUILD_TYPE
CMAKE_INSTALL_PREFIX /usr/local
VTK_DATA_ROOT ../VTKData-release-4-2
VTK_USE_HYBRID ON
VTK_USE_PARALLEL OFF
VTK_USE_PATENTED ON
VTK_USE_RENDERING ON
VTK_WRAP_JAVA ON
VTK_WRAP_PYTHON OFF
VTK_WRAP_TCL OFF


After a couple of configures you can finally hit generate and the system will generate the makefiles. Run make and a long coffee break later you should have something compiled.

Adjust the LD_LIBRARY_PATH to include <Your favorite VTK installation path>/bin and off you go for your first test ride. Well, you might want to add the VTK Java Examples and then you will have to do the following additional steps:


mkdir classes/
cp ~/VTK/Wrapping/Java/vtk/* ~/VTK/java/vtk/
cp ~/VTK-Examples/Wrapping/Java/vtk/* ~/VTK/java/vtk/
cd ~/VTK/java/vtk
mv vtkSettings.java.in vtkSettings.java
cd ..
/usr/local/java/bin/javac -d classes/ vtk/*.java
/usr/local/java/bin/javac -d classes/ vtk/util/*.java
cd classes/
/usr/local/java/bin/jar cvf vtk.jar vtk/
/usr/local/java/bin/jar i vtk.jar
cp vtk.jar ../../bin/


This allow you to just import vtk.jar as an external jar in eclipse to use all the things in vtk.util.

Hopefully that works out for you. Let me know if you have any trouble and I might follow up in this blog.

So today I want to share my little adjustments to libgmail, Python's binding to access gmail. libgmail comes with lots of excellent little programs. Most notably is gcp which copies a file from the local filesystem to gmail. Hence it's the ideal system to perfrom for instance nightly backups of a database to gmail.

Unfortunately gcp asks you every time for the password/login so it can't really run as a cron job -- at leat not that easy. That's why I chnaged some lines and dubbed the new program gecp:

-----------------------------------------------------------------------------------
#!/usr/bin/python2.3
#
# gcp.py -- Demo to copy a file to Gmail using libgmail
#
# $Revision: 1.1 $ ($Date: 2004/10/17 13:34:04 $)
#
# Author: follower@myrealbox.com
#
# License: GPL 2.0
#
import os
import sys
import logging

# Allow us to run using installed `libgmail` or the one in parent directory.
try:
import libgmail
logging.warn("Note: Using currently installed `libgmail` version.")
except ImportError:
# Urghhh...
sys.path.insert(1,
os.path.realpath(os.path.join(os.path.dirname(__file__),
os.path.pardir)))
import libgmail


if __name__ == "__main__":
import sys
from getpass import getpass

# TODO: Allow copy from account.

try:
filename = sys.argv[1]
destination = sys.argv[2]
pw = sys.argv[3]
except IndexError:
print "Usage: %s :[/]i pw" % sys.argv[0]
raise SystemExit

name, label = destination.split(":", 1)

if label.endswith("/"):
label = label[:-1]

if not label:
label = None


ga = libgmail.GmailAccount(name, pw)

print "\nPlease wait, logging in..."

try:
ga.login()
except libgmail.GmailLoginFailure:
print "\nLogin failed. (Wrong username/password?)"
else:
print "Log in successful.\n"

if ga.storeFile(filename, label=label):
print "File `%s` stored successfully in `%s`." % (filename, label)
else:
print "Could not store file."

print "Done."
---------------------------------------------------------------------------------

You can use gecp <filename> <gmail-account>[:label] <password> to copy a file to your gamil account. Be careful: GMail limits the filesize to 10MB so you have to split longer files accordingly. (To reassemble them again juts use cat file1 file2 file3 > targetfile;-)

I am using the following little script in a cronjob to backup the content of a MySQL database:

---------------------------------------------------------------------------------
#!/bin/bash

cd ~german/backup/
#remove all files
rm -f ~german/backup/survey-*
rm -f ~german/backup/xsurvey-*

#dump database
date=`date -I`
mysqldump --opt -u admin --password="MyDBPassword" MyDatabaseName | bzip2 -c > ~german/backup/survey-$date.sql.bz2

#split
split -b10m survey-$date.sql.bz2 xsurvey-$date

#copy to gmail
for file in xsurvey-*;do python ~/libgmail/demos/gecp.py $file MyGMailAccount:Backup MyPassword; done
-------------------------------------------------------------------------------------

I hope this is of some use for somebody;-)

Hi,

my name is German but to not confuse me with my natinality people in the US call me G-Man; hence the name for my Blog. This is a somewhat commercial endeavour since we will have ads benefitting my company e-nnovate Technologies Inc.

Topics I like to cover are FreeNX, VTK, ITK, etc. It doesn't matter if you don't understand the acronyms yet I will explain them later...

I work a couple of jobs: lot's of consulting - e-nnovate, ICG. DFL, Adjunct Faculty @ Mesa College and of course a real one - UCSD Extension IT courses

I will write about a couple of things in the next few days...