DOLFIN User Manual - FEniCS Project
DOLFIN User Manual - FEniCS Project DOLFIN User Manual - FEniCS Project
DOLFIN User ManualHoffman, Jansson, Logg, Wellsedge matches, then the alignment is 1. We similarly define alignments 2, 3by matching the first and second edges with the second and third edges onthe corresponding face on the reference tetrahedron, and alignments 4, 5 bymatching the first and second edges with the third and first edges on thecorresponding face on the reference tetrahedron.Example 1: The alignment of the first face of a tetrahedron is 0 if the firstedge of the face is edge number 5 and the second edge is edge number 0.Example 2: The alignment of the first face of a tetrahedron is 1 if the firstedge of the face is edge number 5 and the second edge is not edge number 0.(It must then be edge number 4.)Example 3: The alignment of the first face of a tetrahedron is 4 if the firstedge of the face is edge number 4 and the second edge is edge number 5.Example 4: The alignment of the first face of a tetrahedron is 5 if the firstedge of the face is edge number 4 and the second edge is not edge number 5.(It must then be edge number 0.)96
Appendix BInstallationThe source code of DOLFIN is portable and should compile on any Unixsystem, although it is developed mainly under GNU/Linux (in particularDebian GNU/Linux). DOLFIN can be compiled under Windows throughCygwin [1]. Questions, bug reports and patches concerning the installationshould be directed to the DOLFIN mailing list at the addressdolfin-dev@fenics.orgDOLFIN must currently be compiled directly from source, but effort is underwayto provide precompiled Debian packages of DOLFIN and other FEniCScomponents.B.1 Installing from sourceB.1.1Dependencies and requirementsDOLFIN depends on a number of libraries that need to be installed on yoursystem. These libraries include Libxml2 and PETSc. In addition to these97
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<strong>DOLFIN</strong> <strong>User</strong> <strong>Manual</strong>Hoffman, Jansson, Logg, Wellsedge matches, then the alignment is 1. We similarly define alignments 2, 3by matching the first and second edges with the second and third edges onthe corresponding face on the reference tetrahedron, and alignments 4, 5 bymatching the first and second edges with the third and first edges on thecorresponding face on the reference tetrahedron.Example 1: The alignment of the first face of a tetrahedron is 0 if the firstedge of the face is edge number 5 and the second edge is edge number 0.Example 2: The alignment of the first face of a tetrahedron is 1 if the firstedge of the face is edge number 5 and the second edge is not edge number 0.(It must then be edge number 4.)Example 3: The alignment of the first face of a tetrahedron is 4 if the firstedge of the face is edge number 4 and the second edge is edge number 5.Example 4: The alignment of the first face of a tetrahedron is 5 if the firstedge of the face is edge number 4 and the second edge is not edge number 5.(It must then be edge number 0.)96
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