Thursday, November 17, 2011

Tech Review: Wednesday, November 16, 2010

FalconView

FalconView
Where is the FalconView log file?
Xen

  • virtual-machine monitor
  • linux
  • Microsoft Windows
SIMH
  • running VAX/VMS under Linux
VM
  • a completely isolated guest operating system installation within a normal host operating system.

Geospatial


  • Geospatial Data Abstraction Library (GDAL)
  • a library for reading and writing raster geospatial data formats.
  • GML in FalconView
  • OGR has limited support for GML reading and writing
    • Update of existing files not supported
  • GIS (Geographic Information System)

  • GIS Internet Resources
  • Georaphy Markup Language (GML) is a XML grammer defined by the Open Geospatial Consortium (OGC)
FLOSS

What is FLOSS?

ArcGIS


ArcGIS Data Export
Java

The initial value of class member variables.

Android Development

  • use Android-x86 and VirtualBox
Internet Anonymity


  • I2P
  • Make it hard for the site you visit to get you info
Geospatial Platform


  • Government shares with public
  • article about
Linux and Supercomputers

The fastest computer in the world, Japan's K-Supercomputer, runs Linux.

  • 91.4% of the top 500 supercomputers are running Linux
OpenStack


  • opensource software for building private and public clouds
  • consists of 3 parts
    • computer
    • object storage
    • image service
  • private company RackSpace that uses OpenStack

Late Software Projects


  • All software projects are late because they started late
  • The started late for 3 reasons
    1. no one started until the competition proved it doable or desirable
    2. cost a lot more then anyone was willing to pay
    3. no one knew that it needed to be done until the window of opportunity was closing
      • usually a disguise for reason one or two




Monday, October 10, 2011

Tech Review: Sunday, October 9, 2011

WinMerge


  • WinMerge 3
    • Qt library
    • window 
    • linux
    • Opensource
Repast Simphany Display


  • I think the above link might be old
  • I really need to know a lot more about display in Repast-S











Tuesday, August 23, 2011

Cygwin and JNI Effort

I am unable to load the JNI DLL.  The following links are some of the info I gather to try to figure out the problem so far.

  • NetBeans
  • Packages needed to support
Simple Tutorial for JNI

Java Crashing with only 'Aborted' message
  • This my be a Java install issue.
    • Might want to try Java 1.6
Setting up Javac in Cygwin
  • cd /usr/local/bin
  • ln -s /cygdrive/c/"Program Files"/java/jdk1.7/bin/javac.exe
  • rehash (this wasn't recognized)
  • javac Hello.java

  • cygwin path
    • /java/lib/somejar.jar
  • javac -classpath C:/cygwin/java/lib/somejar.jar Hello.java
Using libraries in gcc
  • libm.a becomre -lm
  • looks like nice book
    • would have to buy to read
Emacs and Cygwin

How to setup Cygwin for Emacs so you can use the exit keys ctrl-x ctrl-c
  • edit c:\cygwin\cygwin.bat
    • add the following line at the top of the file
      • set CYGWIN=tty
  • works
Java System.load()

jfilemagic
  • git download for April 18, 2011
  • What I downloaded and tested with
Java Seg Fault
  • Java 1.6
  • Redhat
Emacs Cheat Sheet
  • not real good
Exiting Emacs
  • not helpful
JNI Tutorial

JNI Pitfalls



GIT diff ignore line type

http://stackoverflow.com/questions/5405875/git-diff-shows-unchanged-files-as-removed-with

  • git diff --ignore-space-at-eol

Wednesday, April 6, 2011

C: time/date string

http://www.thinkage.ca/english/gcos/expl/c/lib/strfti.html

#include <time.h>
length = strftime(string,maxlen,format,timestruct);

Examples:

#include <time.h> char s[30]; size_t i; struct tm tim; time_t now; now = time(NULL); tim = *(localtime(&now)); i = strftime(s,30,"%b %d, %Y; %H:%M:%S\n",&tim);

obtains the current date and time and puts it into "s" in a format like

Jan 10, 1987; 17:55:55\n