def seifert_corr(stringdata, use_multi=False):
'''Parse Seifert data, output correction terms.'''
try:
if stringdata == '':
raise ValueError('empty string')
data = parse_seifert(stringdata) # parse data
except:
print traceback.print_exc()
return
if not correct_form(data, gui=False):
print traceback.print_exc()
return
else:
# compute quadratic form and correction terms
quad = s_quad_form(data)
print quad
quadform = NDQF(quad[0])
print 'H_1(Y) ~ %s' % quadform.group.struct()
if use_multi:
corr = quadform.correction_terms_threaded()
else:
corr = quadform.correction_terms_ugly()
if quad[1]: # reversed orientation
corr = map(lambda n: -n, corr)
corr = quadform.pretty_print(corr) # make Fractions pretty
return corr
def get_seifert(self):
'''Parse Seifert data, output correction terms.'''
stringdata = self.entry.get()
try:
if stringdata == '':
raise ValueError('empty string')
data = parse_seifert(stringdata) # parse data
except:
tkMessageBox.showwarning('Failed to parse data.',
'Data should be [e, (p1,q1), (p2,q2), ... , (pr,qr)],' +\
'where e and the pi,qi are ints, pi > 1, and gcd(pi,qi) ' +\
'= 1.')
print traceback.print_exc()
return
if not correct_form(data, gui=True):
tkMessageBox.showwarning('Invalid data form.',
'Data should be [e, (p1,q1), (p2,q2), ... , (pr,qr)],' +\
'where e and the pi,qi are ints, pi > 1, and gcd(pi,qi) ' +\
'= 1.')
print traceback.print_exc()
return
else:
print '\n%s' %data
# compute quadratic form and correction terms
quad = s_quad_form(data)
print quad
quadform = NDQF(quad[0])
struct = quadform.group.struct()
print struct
if self.use_multi.get():
corr = quadform.correction_terms_threaded()
else:
corr = quadform.correction_terms_ugly()
if quad[1]: # reversed orientation
corr = map(lambda n: -n, corr)
corr = quadform.pretty_print(corr) # make Fractions pretty
print corr
if self.save_file.get():
self.save(data)
OutputWindow(self.master, corr, struct, quad[0], data,\
showhom=self.show_hom.get(),
showquad=self.show_quad.get(),
condense=self.condense.get(),
showseifert=self.show_seifert.get(),
seifertdata=alter_data(data))
if self.show_weighted.get():
s_draw(data)