your own geometrical constructions created using the native standard geometric objects.
All of [[EM.Cube]]'s computational modules use '''[[Building Geometrical Constructions in CubeCAD | CubeCAD]]''' together with individually customized navigation trees as their graphical user interface and geometry definition utility. Once you have mastered the basics of '''[[Building Geometrical Constructions in CubeCAD | CubeCAD]]''', using the other modules will be very straightforward.
[[image:cad-ico.png | link=Building Geometrical Constructions in CubeCAD]] Click here to learn more about '''[[Building Geometrical Constructions in CubeCAD | CubeCAD]]'''.
== The Material Composition of the Physical Structure ==
A physical structure in [[EM.Cube]] in made up of a number of geometric objects you either draw in the project workspace or import from an external CAD model file. In '''[[Building Geometrical Constructions in CubeCAD | CubeCAD]]''', geometric objects are simply grouped together by their color. They do not have any physical properties. However, in all of [[EM.Cube]]'s computational modules, you need to assign physical properties to each geometric object. In these modules, geometric objects are grouped together by their common physical properties as well as their color. The types of physical properties may differ in different computational modules, but they are typically related to the material properties or boundary conditions.
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== Discretizing a Physical Structure Using a Mesh Generator in EM.Cube ==
[[EM.Cube]]'s computational modules use a number of different mesh generation schemes to discretize your physical structure. Even '''[[Building Geometrical Constructions in CubeCAD | CubeCAD]]''' provides several tools for object discretization. In general, all of [[EM.Cube]]'s mesh generation schemes can be grouped into three categories representing their dimensionality:
#Linear Mesh