step-1

step-1, a dealii code which creates and plots two simple grids.

DEAL.II has an examples directory, and the first example is in the step-1 subdirectory. I would recommend making your own working directory, and copying from the /usr/local/dealii/examples/step-1 directory the following two files

• CMakeLists.txt
• step-1.cc

Now in that directory, you need to create, one time, the necessary makefile, by issuing a command something like:

        cmake -DDEAL_II_DIR=/usr/local/dealii .
      

If all goes well, then you can run the step-1 example by

        make run
      

Reference:

1. Wolfgang Bangerth, Ralf Hartmann, Guido Kanschat,
   DEAL.II - a general-purpose object-oriented finite element library,
   ACM Transactions on Mathematical Software,
   Volume 33, Number 4, article 24, August 2007.

Source code:

• CMakeLists.txt, the file needed by cmake.
• step-1.cc, the source code for the example.
• step-1.sh, a shell script which contains the commands to create the makefile and run the example.
• step-1.txt, the output file.

• grid-1.eps, the PostScript image of mesh 1.
• grid-1.png, the PNG image of mesh 1.
• grid-2.eps, the PostScript image of mesh 2.
• grid-2.png, the PNG image of mesh 2.