== Geometrical Construction of the Physical Structure ==
A physical structure in [[EM.Cube]] in is typically made up of one or more geometric objects, which you either draw in its project workspace or import from an external CAD model file. In [[EM.Cube]], geometric objects are generally categorized into solids, surfaces, curves and special objects, which include points and fractal trees.
When you start the [[EM.Cube]] application, you land in its CubeCAD module by default. CubeCAD is a comprehensive, parametric, 3D CAD modeler along with integrated mesh generation, data processing and visualization capabilities and a powerful Python scripting environment. With the click of a few buttons, you can build complex 3D models and structures in seconds using a large variety of intuitive mouse-based object creation and transformation tools. Import of standard CAD formats allows you to fly in external CAD models with utmost ease. Imported structures can easily be augmented with