Cell groups can be defined to represent, for example, the different phases of a multiphased polycrystalline material (option -group). Poisson-Voronoi or regular tessellations). Of course, it is also possible to generate standard tessellations (e.g. The generated tessellations are general convex-cell tessellations represented as Laguerre (or Voronoi) tessellations whose seed attributes are set by optimization to obtain the desired cell properties 2. Global morphological properties, such as a cell aspect ratio or a columnar axis, can also be specified. Standard analytical distributions are included, and custom numerical distributions can be read from a file. Custom properties can be specified using various metrics, including the size and sphericity (circularity, in 2D), the centroid or even the actual shape (using a raster tessellation), in terms of distributions or individual cell values. Several predefined properties are available, such as those obtained by grain growth in metals (which are described by cell size and sphericity (circularity, in 2D) distributions). Tessellations can be generated from various types of morphological cell properties (option -morpho). Module -T also generates crystal orientations for the cells. The scalar format described the tessellation cells using sets of vertices, edges and faces, while the raster format uses a regular raster of voxels (similarly to an EBSD map). The tessellations are provided in scalar (vectorial) or raster formats. Module -T also enables the regularization of the tessellations for meshing with high quality elements. Periodicity and semi-periodicity conditions can be prescribed. The domain is generally convex, although non-convex shapes can also be obtained. Module -T is the module for generating tessellations and multiscale tessellations of a finite domain of space, in 2D or 3D.
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