.. _amrclaw_1d: --------------------------- AMRClaw for 1d problems --------------------------- **New in Version 5.4.1** AMRClaw has been extended to support one-dimensional AMR directly. The `setrun.py` file has the same form as for 2d AMRClaw, with the obvious changes to eliminate the y-direction. See :ref:`setrun_amrclaw_sample`. For some examples, see the `1d` examples in `$CLAW/amrclaw/examples/` and in :ref:`gallery_classic_amrclaw`. Old approach, deprecated: ------------------------- The two-dimensional code can also be used for 1-dimensional problems, by setting `num_cells[1] = 1` so there is only one cell in the `y` direction. Also set `refinement_ratios_y = [1,1,1, ...]` so that refinement is not done in this direction. In this case the code will automatically do sweeps only in the x-direction and not attempt to solve any Riemann problems in the y-direction, or transverse Riemann problems. The output in the *fort.q000N* files will be suitable for plotting with the one-dimensional Python plotting tools, e.g. these files will list the number of cells in *x* but not in *y*. **This appears to still have bugs and is being worked on.**