TETRAHEDRONS is a dataset directory which contains definitions of some example tetrahedrons.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FELIPPA, a C++ library which defines quadrature rules for lines, triangles, quadrilaterals, pyramids, wedges, tetrahedrons and hexahedrons.
GEOMETRY, a C++ library which performs geometric calculations in 2, 3 and N dimensional space.
GM_RULE, a C++ library which defines Grundmann-Moeller rules for quadrature over a triangle, tetrahedron, or general M-dimensional simplex.
KEAST, a C++ library which defines a number of quadrature rules for a tetrahedron.
NCC_TETRAHEDRON, a C++ library which defines Newton-Cotes Closed quadrature rules on a tetrahedron.
NCO_TETRAHEDRON, a C++ library which defines Newton-Cotes Open quadrature rules on a tetrahedron.
QUADRATURE_RULES_TET, a dataset directory which contains quadrature rules for tetrahedrons, stored as a file of abscissas, a file of weights, and a file of vertices.
TETRAHEDRON_PROPERTIES, a FORTRAN90 program which computes properties of a given tetrahedron.
TET_CAP is an example of a "cap" tetrahedron. A cap has one wide solid angle. This example has a volume of 1.
TET_EQUILATERAL is an example of an "equilateral" tetrahedron. This example has a volume of 8/3.
TET_EXAMPLE1 is tetrahedron example 1. This example has a volume of 8/3.
TET_EXAMPLE2 is tetrahedron example 2. It is a rhombic tetrahedron. This example has a volume of 2/3.
TET_EXAMPLE3 is tetrahedron example 3. This example has a volume of 1.
TET_NEEDLE is an example of a "needle" tetrahedron. A needle has good dihedral angles, and one small solid angle. This example has a volume of 1.
TET_REFERENCE is the reference tetrahedron. This example has a volume of 1/6.
TET_RIGHT is an example of a right tetrahedron. This example has a volume of 1.
TET_SLIVER is an example of a "sliver" tetrahedron. A sliver is one of the hardest degenerate tetrahedrons to detect and remove from a mesh. It has a mixture of small and large dihedral angles. This example has a volume of 1.
TET_SPINDLE is an example of a "spindle" tetrahedron. The spindle has two small solid angles and large dihedral angles. This example has a volume of 1.
TET_WEDGE is an example of a "wedge" tetrahedron. The wedge has small dihedral angles and small solid angles. This example has a volume of 1.
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