Created
January 20, 2014 13:25
-
-
Save emolch/8519784 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
from subprocess import check_call, check_output | |
import os | |
import random | |
import shutil | |
import traceback | |
import tempfile | |
from pyrocko import moment_tensor as pmt | |
from obspy.imaging import beachball as opb | |
import gmtpy | |
import mopad | |
import beach_gmt | |
import numpy as num | |
inch2cm = 2.54 | |
def tempfn(*args): | |
return tempfile.mkstemp(*args)[1] | |
def m6(m): | |
return m[0, 0], m[1, 1], m[2, 2], m[0, 1], m[0, 2], m[1, 2] | |
def plot_mopad(mt, fn_out): | |
mt = mopad.MomentTensor(M=mt.m()) | |
beach = mopad.BeachBall(mt) | |
fn = tempfn('.png') | |
beach.save_BB(dict( | |
plot_outfile=fn, | |
plot_outfile_format='png', | |
plot_size=2., | |
plot_dpi=100, | |
plot_projection='lambert', | |
plot_nodalline_width=5., | |
plot_outerline_width=5.)) | |
check_call(['convert', '-flatten', fn, fn_out]) | |
os.remove(fn) | |
def plot_gmt(mt, fn_out, **kwargs): | |
size = 2*inch2cm*gmtpy.cm | |
beach_gmt.beachball( | |
mt, fn_out, | |
resolution_dpi=100., | |
width=size, height=size, | |
margins=[size/40.]*4, | |
pen='5p,black', **kwargs) | |
def plot_obspy(mt, fn_out): | |
m = mt.m_up_south_east() | |
err = None | |
fn = tempfn('.png') | |
try: | |
opb.Beachball(m6(m), linewidth=5, width=200., | |
facecolor='r', | |
outfile=fn) | |
check_call(['convert', '-flatten', fn, fn_out]) | |
except Exception: | |
err = traceback.format_exc() | |
check_call(['convert', '-size', '200x200', 'xc:white', fn_out]) | |
finally: | |
os.remove(fn) | |
return err | |
def fuzz(mi, ma, critical=[]): | |
random_amp = random.choice([0.5, 1e-3, 1e-6, 1e-12]) | |
r = random.random() * random_amp | |
m = (mi+ma)*0.5 | |
candidates = [mi, ma, mi + r, ma - r, m, m - r, m + r] | |
for c in critical: | |
for x in (c, c-r, c+r): | |
if mi <= x <= ma: | |
candidates.append(x) | |
return random.choice(candidates) | |
def random_mt(kind): | |
if kind == 'dc': | |
mt = pmt.MomentTensor.random_dc() | |
strike, dip, rake = mt.both_strike_dip_rake()[0] | |
elif kind == 'zerotrace': | |
m = pmt.symmat6(*num.random.random(6)*2.-1.) | |
t = float(m.trace()/3.) | |
m -= num.diag([t, t, t]) | |
mt = pmt.MomentTensor(m=m) | |
elif kind == 'critical-dc': | |
strike = fuzz(-180., 180., critical=[-90., 90.]) | |
dip = fuzz(0., 90.) | |
rake = fuzz(-180., 180., critical=[-90., 90.]) | |
mt = pmt.MomentTensor(strike=strike, dip=dip, rake=rake) | |
for sdr in mt.both_strike_dip_rake(): | |
mt2 = pmt.MomentTensor(strike=sdr[0], dip=sdr[1], rake=sdr[2]) | |
assert num.max(num.abs(mt.m() - mt2.m())) < 1e-7 | |
return mt | |
def valform(*vals): | |
fmt = ', '.join(['%.15f'] * len(vals)) | |
return fmt % tuple(vals) | |
testkinds = 'critical-dc' | |
ifail = 0 | |
o = open('comparison.html', 'w') | |
for i in xrange(50): | |
mt = random_mt(testkinds) | |
strike, dip, rake = mt.both_strike_dip_rake()[0] | |
fn_beach = {} | |
fn = fn_beach['mopad'] = tempfn('.png') | |
plot_mopad(mt, fn) | |
fn = fn_beach['gmt'] = tempfn('.png') | |
plot_gmt(mt, fn, plot_method='zerotrace') | |
fn = fn_beach['obspy'] = tempfn('.png') | |
err = plot_obspy(mt, fn) | |
diff = {} | |
fns_comp = [] | |
for a, b in [('mopad', 'gmt'), ('mopad', 'obspy')]: | |
#compfn = 'compare-%s-%s.png' % (a, b) | |
compfn = tempfn('.png') | |
check_call(['convert', fn_beach[a], fn_beach[b], '-compose', | |
'difference', '-composite', '-colorspace', 'gray', compfn]) | |
diff[a, b] = float(check_output(['convert', compfn, '-format', | |
'%[fx:mean*100]', 'info:'])) | |
fns_comp.append(compfn) | |
fn_result = tempfn('.png') | |
fns_in = [fn_beach[x] for x in ['mopad', 'gmt', 'obspy']] | |
check_call(['convert'] + fns_in + | |
fns_comp + ['+append', fn_result]) | |
for fn in fns_comp + fns_in: | |
os.remove(fn) | |
if any(v > 4.0 for v in diff.values()): | |
ifail += 1 | |
shutil.copy(fn_result, 'fail-%i.png' % ifail) | |
for ((a, b), v) in diff.iteritems(): | |
print >>o, 'difference %s vs %s: %g%%<br />' % (a, b, v) | |
print >>o, 'strike, dip, rake: %s<br />' % valform(strike, dip, rake) | |
print >>o, 'mnn, mee, mdd, mne, mnd, med: %s<br />' % \ | |
valform(*m6(mt.m())) | |
if err is not None: | |
print >>o, 'obspy failure: <pre>%s</pre><br />' % err | |
print >>o, '<img src="fail-%i.png"> <br />' % ifail | |
print >>o, '(mopad, gmt, obspy, |gmt - mopad|, |obpsy - mopad|) <br />' | |
print >>o, '<hr />' | |
os.remove(fn_result) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment