# API reference

The main entry points are
{class}`~papermodels.datatypes.geometry_graph.GeometryGraph` (build the load path
graph), {class}`~papermodels.datatypes.joist_models.JoistArrayModel` (generate
joists) and {class}`~papermodels.datatypes.element.LoadedElement` (the exported
member models).

```{toctree}
:maxdepth: 2

datatypes
paper
geometry
scales
```