/*! \page build_by_blocks_page Building by blocks <h2>Introduction</h2> Below are some general notions about blocks: A block is a an elementary geometric solid that has specific geometric constraints oriented for meshing. In the hexahedral case, blocks have 6 faces and each face has 4 edges. Tetrahedral Block - is a block with constraints for tetrahedral meshing. Hexahedral Block - is a block with constraints for hexahedral meshing. Block Compound - is a compound composed of blocks only. Some functionalities that allow building blocks easily are available from the main menu via <em>New Entity / Blocks</em>. <ul> <li>\subpage create_quadrangle_face_page "Quadrangle face"</li> <li>\subpage create_hexa_solid_page "Hexahedral solid" </li> <li>\subpage create_divideddisk_page "Divided disk" </li> <li>\subpage create_dividedcylinder_page "Divided cylinder" </li> </ul> */