def zoeppritz(Rp0, Rp1, theta1):
'''
Wrapper around long zoeppritz funcion.
:param Rp0:
:param Rp1:
:param theta1:
'''
return reflection.zoeppritz(Rp0.vp, Rp0.vs, Rp0.rho, Rp1.vp, Rp1.vs, Rp1.rho, theta1)
def test_wrapper( self ):
"""
Tests the reflectivity wrapper function
"""
theta = 15.0
ref_wrap = rock_reflectivity( self.Rp0, self.Rp1,
theta=theta,
method=avo.zoeppritz )
ref = avo.zoeppritz( self.vp0,self.vs0,self.rho0,
self.vp1, self.vs1, self.rho1,
theta )
self.assertEqual( ref, ref_wrap )
def test_shuey2(self):
vp1 = 12250.
vp2 = 11600.
vs1 = 6200.
vs2 = 6650.
rho1 = 2.66
rho2 = 2.34
theta = np.arange(45)
reflect = avo.shuey2(vp1, vs1, rho1, vp2, vs2, rho2, theta)
reflect_zoep = avo.zoeppritz(vp1, vs1, rho1, vp2, vs2, rho2, theta)
# See if it is within .1 of zoep for < 45 deg
test = np.allclose(reflect, reflect_zoep, rtol=self.tolerance)
self.assertTrue(test)
def test_zoeppritz(self):
vp1 = 12250.
vp2 = 11600.
vs1 = 6200.
vs2 = 6650.
rho1 = 2.66
rho2 = 2.34
theta = 40.
reflect = avo.zoeppritz( vp1,vs1,rho1,vp2,vs2,rho2,theta )
# Number manually verified using
# spreadsheet from http://tbberge.com/id63.html
self.assertAlmostEquals( reflect, -0.112236, places=3 )
def test_get_reflectivity( self ):
cmap = {rgb(150,100,100):self.Rp0, rgb( 100,150,100):self.Rp1}
theta = 15.0
data = np.zeros( (100,100,3 ) )
data[:50,:,:] += [150,100,100]
data[50:,:,:] += [100,150,100]
reflectivity = \
get_reflectivity( data, cmap, theta,
reflectivity_method=avo.zoeppritz )
truth = avo.zoeppritz( self.vp0, self.vs0, self.rho0,
self.vp1, self.vs1, self.rho1,
theta )
test = np.zeros( (100,100,1) )
test[49,:,0] = truth
self.assertTrue( np.array_equal( test, reflectivity ) )
