program main !*****************************************************************************80 ! !! MAIN is the main program for TETRAHREDON_GRID_TEST. ! ! Discussion: ! ! TETRAHEDRON_GRID_TEST tests the TETRAHEDRON_GRID library. ! ! Licensing: ! ! This code is distributed under the MIT license. ! ! Modified: ! ! 11 November 2011 ! ! Author: ! ! John Burkardt ! implicit none integer, parameter :: rk = kind ( 1.0D+00 ) call timestamp ( ) write ( *, '(a)' ) ' ' write ( *, '(a)' ) 'TETRAHEDRON_GRID_TEST:' write ( *, '(a)' ) ' FORTRAN90 version' write ( *, '(a)' ) ' Test the TETRAHEDRON_GRID library.' call tetrahedron_grid_test01 ( ) ! ! Terminate. ! write ( *, '(a)' ) ' ' write ( *, '(a)' ) 'TETRAHEDRON_GRID_TEST:' write ( *, '(a)' ) ' Normal end of execution.' write ( *, '(a)' ) ' ' call timestamp ( ) stop 0 end subroutine tetrahedron_grid_test01 ( ) !*****************************************************************************80 ! !! TETRAHEDRON_GRID_TEST01 tests TETRAHEDRON_GRID. ! ! Licensing: ! ! This code is distributed under the MIT license. ! ! Modified: ! ! 10 November 2011 ! ! Author: ! ! John Burkardt ! implicit none integer, parameter :: rk = kind ( 1.0D+00 ) character ( len = 80 ) filename integer n integer ng real ( kind = rk ) :: t(3,4) = reshape ( (/ & 0.0D+00, 0.0D+00, 0.0D+00, & 1.0D+00, 0.0D+00, 0.0D+00, & 0.0D+00, 1.0D+00, 0.0D+00, & 0.0D+00, 0.0D+00, 1.0D+00 /), (/ 3, 4 /) ) real ( kind = rk ), allocatable :: tg(:,:) write ( *, '(a)' ) ' ' write ( *, '(a)' ) 'TEST01:' write ( *, '(a)' ) ' TETRAHEDRON_GRID can define a tetrahedral grid' write ( *, '(a)' ) ' with N+1 points on a side, based on any tetrahedron.' n = 10 write ( *, '(a,i8)' ) ' N = ', n call tetrahedron_grid_count ( n, ng ) call r8mat_print ( 3, 4, t, ' Tetrahedron vertices:' ) allocate ( tg(1:3,1:ng) ) call tetrahedron_grid ( n, t, ng, tg ) call r83vec_print_part ( ng, tg, 20, ' Part of the grid point array:' ) filename = 'tetrahedron_grid_test01.xyz' call r8mat_write ( filename, 3, ng, tg ) write ( *, '(a)' ) ' ' write ( *, '(a)' ) ' Data written to the file "' // trim ( filename ) // '".' deallocate ( tg ) return end