GeoClaw plotting tools

Needs updating

The module $CLAW/visclaw/geoplot.py contains some useful tools for plotting GeoClaw output.

To be continued. See comments in the module.

Plotting water depth or surface elevation

For information on using masked arrays, see:

• Masked array operations

Tips on latitude-longitude coordinate axes

With the default style, matplotlib axis labels are often hard to read when plotting in latitude and longitude. It may help to disable offset labeling and to rotate the longitude labels:

ticklabel_format(format='plain',useOffset=False)
xticks(rotation=20)

To set the aspect ratio so that latitude and longitude are scaled appropriately, set mean_latitude to some average latitude value in the region of interest and then:

gca().set_aspect(1./cos(mean_latitude*pi/180.))