Working with PyClaw’s built-in examples¶
PyClaw comes with many example problem scripts that can be accessed from the module clawpack.pyclaw.examples. If you have downloaded the PyClaw source, you can find them in the directory clawpack/pyclaw/examples/. These examples demonstrate the kinds of things that can be done with PyClaw and are a great way to learn how to use PyClaw.
Running and plotting examples¶
Interactively in IPython¶
A built-in example can be run and plotted as follows:
from clawpack.pyclaw import examples
claw = examples.shock_bubble_interaction.setup()
claw.run()
claw.plot()
To run and plot a different example, simply replace shock_bubble_interaction with another example name. A number of keyword arguments may be passed to the setup function; see its docstring for details. These usually include the following:
use_petsc: set to 1 to run in parallel
solver_type: set toclassicorsharpclaw
iplot: set to 1 to automatically launch interactive plotting after running. Note that this shouldn’t be used in parallel, as every process will try to plot.
htmlplot: set to 1 to automatically create HTML plot pages after running.
outdir: the name of the subdirectory in which to put output files. Defaults to./_output.
From the command line¶
If you have downloaded the Clawpack source, you can run the examples from the command line. Simply do the following at the command prompt:
$ cd clawpack/pyclaw/examples/acoustics_1d_homogeneous
$ python acoustics.py iplot=1
You can run any of the examples similarly by going to the appropriate directory and executing the Python script. For convenience, the scripts are set up to pass any command-line options as arguments to the setup function.
Built-in examples¶
You can see results from many of the examples in the Clawpack Gallery.
Adding new examples¶
If you have used PyClaw, we’d love to add your application to the built-in scripts. Please contact us on the claw-users Google group or just issue a pull request on Github.
