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Merge branch 'Dom' of https://github.com/simpeg/simpegpf into Dom

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Conflicts:
	simpegPF/Magnetics.py
This commit is contained in:
D Fournier
2016-01-15 00:03:37 -08:00
parent c0445e5db5 dbcd57bc4e
commit e4e19ceac1
2 changed files with 239 additions and 192 deletions
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simpegPF/Dev/Intgrl_MAG_Fwr_SphereTest.py
+33 -31
View File
@@ -1,8 +1,8 @@
import os
home_dir = 'C:\Users\dominiquef.MIRAGEOSCIENCE\Documents\GIT\SimPEG\simpegpf\simpegPF\Dev'
# home_dir = 'C:\Users\dominiquef.MIRAGEOSCIENCE\Documents\GIT\SimPEG\simpegpf\simpegPF\Dev'
os.chdir(home_dir)
# os.chdir(home_dir)
#%%
from SimPEG import *
@@ -16,12 +16,12 @@ plt.close('all')
#%% Create survey
B = np.array(([-45.,315.,50000.]))
M = np.array(([-45.,315.]))
# Sphere radius
R = 0.25
# # Or create juste a plane grid
xr = np.linspace(-2., 2., 5)
yr = np.linspace(-2., 2., 5)
@@ -37,67 +37,67 @@ lrl = np.zeros(d_iter)
# Create mesh using simpeg and write out in GIF format
for ii in range(d_iter):
nc = 3**(ii+1)
hxind = [(1./nc, nc)]
hyind = [(1./nc, nc)]
hzind = [(1./nc, nc)]
mesh = Mesh.TensorMesh([hxind, hyind, hzind], 'CCC')
xn = mesh.vectorNx
yn = mesh.vectorNy
zn = mesh.vectorNz
mcell = mesh.nC
print 'Mesh size: ' + str(mcell)
sph_ind = PF.MagAnalytics.spheremodel(mesh, 0, 0, 0, R)
chibkg = 0.
chiblk = 0.01
model = np.ones(mcell)*chibkg
model[sph_ind] = chiblk
actv = np.ones(mcell)
#%% Forward mode ldata
d = PF.Magnetics.Intgrl_Fwr_Data(mesh,B,M,rxLoc,model,actv,'xyz')
fwr_x = d[0:ndata]
fwr_y = d[ndata:2*ndata]
fwr_z = d[2*ndata:]
#%% Get the analystical answer and compute the residual
bxa,bya,bza = PF.MagAnalytics.MagSphereAnaFunA(rxLoc[:,0],rxLoc[:,1],rxLoc[:,2],R,0.,0.,0.,chiblk, np.array(([0.,0.,B[2]])),'secondary')
Bd = (450.-float(B[1]))%360.
Bi = B[0]; # Convert dip to horizontal to cartesian
Bx = np.cos(np.deg2rad(Bi)) * np.cos(np.deg2rad(Bd)) * B[2]
By = np.cos(np.deg2rad(Bi)) * np.sin(np.deg2rad(Bd)) * B[2]
Bz = np.sin(np.deg2rad(Bi)) * B[2]
Bi = B[0]; # Convert dip to horizontal to cartesian
Bx = np.cos(np.deg2rad(Bi)) * np.cos(np.deg2rad(Bd)) * B[2]
By = np.cos(np.deg2rad(Bi)) * np.sin(np.deg2rad(Bd)) * B[2]
Bz = np.sin(np.deg2rad(Bi)) * B[2]
Bo = np.c_[Bx, By, Bz]
bxa,bya,bza = PF.MagAnalytics.MagSphereFreeSpace(rxLoc[:,0],rxLoc[:,1],rxLoc[:,2],R,0.,0.,0.,chiblk, Bo)
#bxa,bya,bza = PF.MagAnalytics.MagSphereAnaFunA(rxLoc[:,0],rxLoc[:,1],rxLoc[:,2],R,0.,0.,0.,chiblk, np.array(([0.,0.,B[2]])),'secondary')
r_Bx = fwr_x - bxa
r_By = fwr_y - bya
r_Bz = fwr_z - bza
lrl[ii] = sum( r_Bx**2 + r_By**2 + r_Bz**2 ) **0.5
lrl[ii] = sum( r_Bx**2 + r_By**2 + r_Bz**2 ) **0.5
#%% Plot results
print 'Residual between analytical sphere and integral forward'
print 'Residual between analytical sphere and integral forward'
for ii in range(d_iter):
nc = 3**(ii+1)
print "||r||= " + str(lrl[ii]) + "\t dx= " + str(1./nc)
#%% Plot fields
plt.figure(1)
@@ -168,4 +168,6 @@ plt.imshow(np.reshape(r_Bz,X.shape).T, interpolation="bicubic", extent=[xr.min()
plt.colorbar(fraction=0.04)
plt.contour(X,Y, np.reshape(r_Bz,X.shape).T,10)
plt.scatter(X,Y, c=np.reshape(r_Bz,X.shape).T, s=20)
ax.set_title('Sphere Ana Bz')
ax.set_title('Sphere Ana Bz')
plt.show()