Besides the Graphical user interface that is used in GroIMP by default, it is possible to execute models in other ways. This can be useful for specific scenarios such as larger pipelines or remote execution. In general a user interface describes how the user communicates with the software (GroIMP).

For example with the graphical user interface windows and panels are used for this communication:

GroIMP can be started without its graphical interface, in headless. The headless mode executes a provided model and afterwards closes GroIMP. Capturing any feedback from the simulation must be included in the model.

More information on the headless mode:

• GroIMP headless user guide
• Headless implementation
• Common command line arguments

A tutorial:

• Getting started with headless

GroIMP can be started without its graphical interface, with a CLI. Unlike the Headless mode, the CLI enables interaction with the model during run time including opening and closing models, running simulations, editing RGG files etc.

More documentation on the CLI:

• CLI user guid
  • List of CLI commands
• CLI implementation

A tutorial:

• Getting started with CLI

It is possible to start GroIMP as a HTTP server to then send model paths via HTTP for GroIMP to execute. After GroIMP executed the model values can be returned to the HTTP client who send the request. It is possible to send several models in series or in parallel.

More information:

• HTTP server user guide
  • HTTP Server commands
  • HTTP options

Tutorial:

• Starting GroIMP as a HTTP Server

GroIMP can be started as an HTTP API that provides a generalized set of commands that allows the interaction with other software. Currently a Python and a R library are provided but any software capable of http requests could interact with GroIMP.

More information on the API:

• API user guid
• List of commands
• API implementation
• How to create new API commands
• GroLink: implementing and testing a general application programming interface for the plant-modelling platform GroIMP

Tutorials:

• getting started with GroLink and Python(GroPy)
• getting started with GroLink and R(GroR)
• getting started with GroLink and HTTP in your web browser
• Handling data in GroLink projects
• Deploying GroIMP/GroLink on Kubernetes

Existing examples:

• Godot forestry Game
• An jupyter notebook
• Two R-Shiny apps to view GroIMP projects in a browser

This Feature is currently not working!!!!

GroIMP can be started as a server. Then, other instances of GroIMP can connect to the GroIMP server. This enables multiple user concurrently accessing a single model from different devices as well as modelling on a powerful remote server.

More information:

• GroIMP Server
• Options

Tutorial:

• Starting GroIMP as a GroIMP Server

Parts of the GreenLab model were reimplemented in the language XL with additional panels in the GUI. As the basis, the implementation of the GreenLab model in the software GreenScilab, version GreenScilabv1.0_demo, was taken.

More information on the Greenlab plugin:

• Greenlab implementation

A tutorial:

• Getting started with greenlab