.. _program_listing_file_src_t8_element.cxx:

Program Listing for File t8_element.cxx
=======================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_t8_element.cxx>` (``src/t8_element.cxx``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
     This file is part of t8code.
     t8code is a C library to manage a collection (a forest) of multiple
     connected adaptive space-trees of general element classes in parallel.
   
     Copyright (C) 2015 the developers
   
     t8code is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
   
     t8code is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
   
     You should have received a copy of the GNU General Public License
     along with t8code; if not, write to the Free Software Foundation, Inc.,
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   */
   
   #include <t8_element.h>
   
   /* We want to export the whole implementation to be callable from "C" */
   T8_EXTERN_C_BEGIN ();
   
   /* clang-format off */
   const double t8_element_corner_ref_coords[T8_ECLASS_COUNT][T8_ECLASS_MAX_CORNERS][3] = {
     { { 0, 0, 0 } },                                        /* T8_ECLASS_VERTEX */
     { { 0, 0, 0 }, { 1, 0, 0 } },                           /* T8_ECLASS_LINE */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 0, 1, 0 }, { 1, 1, 0 } }, /* T8_ECLASS_QUAD */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 1, 1, 0 } },              /* T8_ECLASS_TRIANGLE */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 0, 1, 0 }, { 1, 1, 0 },
       { 0, 0, 1 }, { 1, 0, 1 }, { 0, 1, 1 }, { 1, 1, 1 } },                           /* T8_ECLASS_HEX */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 1, 0, 1 }, { 1, 1, 1 } },                           /* T8_ECLASS_TET */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 1, 1, 0 }, { 0, 0, 1 }, { 1, 0, 1 }, { 1, 1, 1 } }, /* T8_ECLASS_PRISM */
     { { 0, 0, 0 }, { 1, 0, 0 }, { 0, 1, 0 }, { 1, 1, 0 }, { 1, 1, 1 } }               /* T8_ECLASS_PYRAMID */
   };
   
   const double t8_element_centroid_ref_coords[T8_ECLASS_COUNT][3] = {
     { 0, 0, 0 },               /* T8_ECLASS_VERTEX */
     { 0.5, 0, 0 },             /* T8_ECLASS_LINE */
     { 0.5, 0.5, 0 },           /* T8_ECLASS_QUAD */
     { 2. / 3., 1. / 3., 0 },   /* T8_ECLASS_TRIANGLE */
     { 0.5, 0.5, 0.5 },         /* T8_ECLASS_HEX */
     { 0.75, 0.25, 0.5 },       /* T8_ECLASS_TET */
     { 2. / 3., 1. / 3., 0.5 }, /* T8_ECLASS_PRISM */
     { 0.6, 0.6, 0.2 }          /* T8_ECLASS_PYRAMID */
   };
   /* clang-format on */
   
   T8_EXTERN_C_END ();