Table of Contents [-]
What is the minimum required hardware to run NEST? #
It is recommended to have at least 2GB of memory. NEST can work with only 1GB but may run slower.
To run the 3D WorldWind View, it is recommended to have a 3D graphics card with updated drivers.
NEST has been tested to work on 32 and 64 bit Windows XP, Vista, Windows 7 and Linux.
When I start the DAT it says it could not create the Java virtual machine #
In dat.bat or dat.sh try reducing the Java maximum heap size -Xmx1024M value to something smaller like -Xmx800M
How can I get WorldWind to work? I see a blank window in the World View. #
How to add NEST_HOME to the PATH to run from the command line #
If you would like to run he gpt from any folder, you will need to set the NEST_HOME path to where ever you unzip it. For example on Windows go to Control Panel -> System -> Advanced -> Environment Variables
Add a variable for NEST_HOME to point to the installation folder and also include %NEST_HOME% in the PATH variable.
On Linux, set these environment variables in .profile or .bash_profile in your home directory export NEST_HOME=installation folder export PATH=$PATH:$NEST_HOME
Then either restart your terminal or type
Also, make sure the paths in NEST/config/settings.xml are appropriate for your file system.
How can I improve performance? #
Performance in NEST drops considerably when using virtual memory. If you have more than 2Gb of RAM and wish to use all of it, on a 64-bit OS you should be using a 64-bit version of Java. You may then set the heap size for the Java virtual machine to something larger such as -Xmx4096M
To do so, open in a text editor your gpt.bat on Windows or gpt.sh on Linux found in your NEST installation folder and replace the -Xmx1024M value with something larger like -Xmx4096M. You may do the same with dat.bat or dat.sh.
In Windows you may set these for the exe in nest-dat.l4j.ini
How can I move the .nest folder somewhere else? #
By default NEST creates a windows_user_home_folder\.nest (~/.nest on Linux)
The .nest folder is used to store temporary data such as preferences, logs, etc.
If you would like to change the location of this folder:
Edit the file NESTInstallFolder\config\nest.config
change the line
#nest.application_tmp_folder = c:\\AuxData
nest.application_tmp_folder = your_new_path
How to change the AuxData folder #
Edit the file NESTInstallFolder\config\settings_win.xml or setting_unix.xml
Change the AuxDataPath value to your new path and restart the Toolbox.
How to install on Windows 8 #
Right click on installer and select Windows 7 compatibility mode and then install normally.