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This repository provides a Graphical User Interface (GUI) for GLOBIOM. The master (default) branch is designed for the Trunk, FABLE, and pre-release versions of GLOBIOM.

The GUI is an add-on to the GLOBIOM model that can be used to interactively run the steps of the model and analyse its output. When running GLOBIOM without GUI, you have a Model directory and optionally an adjacent Data directory obtained from a code repository. To add the GUI, clone the GLOBIOM_GUI repository to a GUI directory adjacent to the Model directory. From the command line, this can be done as follows:

cd <parent directory of Model directory>
git clone https://github.com/iiasa/GLOBIOM_GUI GUI

After cloning, check that a GUI directory has been created next to the Model directory. The GUI can be started by running globiom.bat, a cross-platform launcher script contained in the GUI directory. The GUI runs on Windows and MacOS. On Linux there is still an unresolved issue.

If the GUI fails to launch, you probably will need to install a Java runtime, or a newer Java version than what you have currently installed, and configure the GUI to use it. See the next section for details.

The GUI requires Java 8 or higher. Java versions higher than 8 likely work, but are relatively untested. If you do not have a Java runtime installed on your machine, you can download OpenJDK here. Choose the HotSpot version for best performance.

On Windows, you can see which Java versions are installed via Add or remove programs.

Beware that Java versioning is confusing: a Java 8 installation uses "1.8.something" as a version string.

After locating or installing Java 8 on your machine, edit GGIG_java_path.txt to point to the java executable/binary of the installation:

• Determine the path to your java binary/executable. On Windows, a typical path is C:\Program Files\AdoptOpenJDK\jdk-8.0.212.03-hotspot\bin\java.
• Go to the GUI folder created on cloning the repository.
• From there, load GGIG_java_path.txt into a text editor, enter the path that matches your Java installation, and save.

For slides introducing the GUI and detailed installation steps for GLOBIOM dependencies, see the A GUI for GLOBIOM presentation.

For next steps and information regarding the many features of the GUI, please visit the GLOBIOM GUI page.

The GLOBIOM GUI is based on GGIG, the GAMS Graphical User Interface Generator. We are grateful for the generous guidance and assistance concerning GGIG provided by Wolfgang Britz and Torbjörn Jansson.