plot_fgmax.py.html
Source file:   plot_fgmax.py
Directory:   /Users/rjl/clawpack_src/clawpack_master/apps/tsunami/chile2010_fgmax
Converted:   Sat Apr 18 2020 at 20:05:29   using clawcode2html
This documentation file will not reflect any later changes in the source file.

 
"""
Plot fgmax output from GeoClaw run.

"""

import matplotlib.pyplot as plt
import numpy
from clawpack.geoclaw import fgmax_tools, geoplot

def plot_fgmax_grid():

    fg = fgmax_tools.FGmaxGrid()
    fg.read_fgmax_grids_data(fgno=1)
    fg.read_output()

    clines_zeta = [0.01] + list(numpy.linspace(0.05,0.3,6)) + [0.5,1.0,10.0]
    colors = geoplot.discrete_cmap_1(clines_zeta)
    plt.figure(1)
    plt.clf()
    zeta = numpy.where(fg.B>0, fg.h, fg.h+fg.B)   # surface elevation in ocean
    plt.contourf(fg.X,fg.Y,zeta,clines_zeta,colors=colors)
    plt.colorbar()
    plt.contour(fg.X,fg.Y,fg.B,[0.],colors='k')  # coastline

    # plot arrival time contours and label:
    arrival_t = fg.arrival_time/3600.  # arrival time in hours
    clines_t = numpy.linspace(0,8,17)  # hours
    clines_t_label = clines_t[::2]  # which ones to label 
    clines_t_colors = ([.5,.5,.5],)
    con_t = plt.contour(fg.X,fg.Y,arrival_t, clines_t,colors=clines_t_colors) 
    plt.clabel(con_t, clines_t_label)

    # fix axes:
    plt.ticklabel_format(style='plain',useOffset=False)
    plt.xticks(rotation=20)
    plt.gca().set_aspect(1./numpy.cos(fg.Y.mean()*numpy.pi/180.))
    plt.title("Maximum amplitude / arrival times")


if __name__=="__main__":
    import os
    plot_fgmax_grid()
    plotdir = '_plots'
    if not os.path.isdir(plotdir): 
        os.mkdir(plotdir)
    fname = os.path.join(plotdir, "amplitude_times.png")
    plt.savefig(fname)
    print("Created ",fname)