Spark is a physical simulation system. The primary purpose of this system is to provide a *generic* simulator for different kinds of simulations. In these simulations, agents can participate as external processes.
** The OpenStudio Legacy Plug-in has been relaunch as Euclid by Big Ladder Software, please see the new homepage: http://bigladdersoftware.com/projects/euclid/ **
The Legacy OpenStudio SketchUp Plug-in makes it easy to create and edit the building geometry in your EnergyPlus input files. Note that active development has moved to the more comprehensive OpenStudio suite of tools and libraries at https://www.openstudio.net/.
Interactive mesh creation tool. Discretizer will create geometry and meshes for three dimensional flow simulations (CFD). Geometry import is not a goal: Discretizer will be furiously fast geometry builder(on many common engineering applications at least)