Prerequisites

You must follow the previous tutorial steps before starting this tutorial. Before continuing, please check that your current project structure looks like :

.
├── build
├── CMakeLists.txt
├── Main.cpp
├── my-project.inp
├── PlugIn_BuildDomain.cpp
└── PlugIn_BuildDomain.hpp

.
├── Main.py
├── my-project.inp
└── PlugIn_BuildDomain.py

:prompt: cd build && cmake ../ && make && cd ../

Writting your .inp file

Now, you must build a new input file. Remind that you just want to build a simple discrete domain, save it and exit. Create a new file named build-domain.inp and put inside the following xml code.

<GRANOO Version="3"  OutDir="MyDomain" Verbose="No" ThreadNumber="1">
  <STEP Label="pre-processing">
    <BuildDomain Length="1" Radius="0.1" Number="5"/>
    <SAVE-DOMAIN FileName="MyFirstDomain.agdd"/>
  </STEP>
</GRANOO>

Note the usage of the standard plugin SAVE-DOMAIN that saves the domain into a file.

Running your project

To run your project simply type

:prompt: ./build/my-project.exe ./build-domain.inp

:prompt: python ./Main.py ./build-domain.inp

The simulation creates a new directory named MyDomain. You can change the name of this directory by setting the attribute value OutDir of the <GranOO ....> tag. Typically, this directory contains all result files of a simulation. In this case, this directory contains the discrete domain file that you built with your custom plugin.

Viewing result

You can use here the granoo3-viewer that display in 3D the content of granoo domain files

:prompt: granoo3-viewer ./MyDomain/

You must see, something like this :