mirror of
https://github.com/wassname/simpeg.git
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D Fournier
140 lines
4.2 KiB
Python
140 lines
4.2 KiB
Python
import os
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home_dir = 'C:\Users\dominiquef.MIRAGEOSCIENCE\Documents\GIT\SimPEG\simpegdc\simpegDCIP\Dev'
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os.chdir(home_dir)
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#%%
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from SimPEG import np, Utils, Mesh, mkvc, SolverLU
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import simpegDCIP as DC
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import pylab as plt
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#from ipywidgets import interact, IntSlider
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from matplotlib import animation
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from JSAnimation import HTMLWriter
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from readUBC_DC2DMesh import readUBC_DC2DMesh
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from readUBC_DC2DModel import readUBC_DC2DModel
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from readUBC_DC2DLoc import readUBC_DC2DLoc
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# Number of padding cells to remove from plotting
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padc = 16
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# Load UBC mesh 2D
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mesh = readUBC_DC2DMesh('mesh2d_fine.txt')
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# Load model
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model = readUBC_DC2DModel('model2d_fine.con')
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# load obs file
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[txLoc,rxLoc,d,wd] = readUBC_DC2DLoc('obs2d_East.loc')
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# Create SimPEG objects
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rx = DC.RxDipole(rxLoc[:,0], rxLoc[:,1])
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#tx = DC.SrcDipole([rx],txLoc[200,0],txLoc[200,1])
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# Create sub-mesh for plotting
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hx = mesh.hx
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hy = mesh.hy
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hx_sub = hx[padc:-padc]
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hy_sub = hy[padc:]
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mesh_sub = Mesh.TensorMesh([hx_sub,hy_sub],(hx_sub[0], -sum(hy_sub)))
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model_sub = model.reshape(mesh.nCy,mesh.nCx)
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model_sub = mkvc(model_sub[padc:,padc:-padc].T)
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xx = mesh_sub.vectorCCx
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yy = mesh_sub.vectorCCy
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#%% Solve
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txii = range(50,1950,100)
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#jx_CC_sub = np.zeros((len(txii),mesh_sub.nCx,mesh_sub.nCy))
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#jy_CC_sub = np.zeros((len(txii),mesh_sub.nCx,mesh_sub.nCy))
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fig = plt.figure(figsize=(10,5))
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axs = plt.axes(ylim=(-800,50), xlim=(25,2000))
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plt.tight_layout(pad=0.4, w_pad=0.5, h_pad=1.0)
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im1 = axs.imshow([[],[]], alpha=0.75,extent = (xx[0],xx[-1],yy[-1],yy[0]),interpolation='nearest',vmin=-1e-2, vmax=1e-2)
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im2 = axs.imshow([[],[]],alpha=0.2,extent = (xx[0],xx[-1],yy[-1],yy[0]),interpolation='nearest',cmap='gray')
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im3 = axs.streamplot(mesh_sub.vectorCCx, mesh_sub.vectorCCy, np.zeros((mesh_sub.nCy,mesh_sub.nCx)), np.zeros((mesh_sub.nCy,mesh_sub.nCx)),color='k')
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im4 = axs.scatter([],[], c='r', s=200)
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def init():
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im1.set_data([[],[]])
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im2.set_data([[],[]])
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return [im1]+[im2]
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def animate(ii):
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#for ii in range(len(txii)):
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removeStream()
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tx = DC.SrcDipole([rx],txii[ii],txii[ii])
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survey = DC.SurveyDC([tx])
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problem = DC.ProblemDC_CC(mesh)
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problem.pair(survey)
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problem.Solver = SolverLU
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u1 = problem.fields(model)
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Msig1 = Utils.sdiag(1./(mesh.aveF2CC.T*(1./model)))
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j = -Msig1*mesh.cellGrad*u1[tx, 'phi_sol']
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j_CC = mesh.aveF2CCV*j
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# Compute charge density solving div*grad*phi
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Q = -mesh.faceDiv*mesh.cellGrad*u1[tx, 'phi_sol']
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jx_CC = j_CC[0:mesh.nC].reshape(mesh.nCy,mesh.nCx).T
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jy_CC = j_CC[mesh.nC:].reshape(mesh.nCy,mesh.nCx).T
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#%% Grab only the core for presentation
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jx_CC_sub = jx_CC[padc:-padc,padc:]
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jy_CC_sub = jy_CC[padc:-padc,padc:]
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Q_sub = Q.reshape(mesh.nCy,mesh.nCx)
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Q_sub = Q_sub[padc:,padc:-padc]
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J_rho = np.sqrt(jx_CC_sub**2 + jy_CC_sub**2)
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lw = np.log10(J_rho/J_rho.min())
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#axs.imshow(Q_sub,alpha=0.75,extent = (xx[0],xx[-1],yy[-1],yy[0]),interpolation='nearest',vmin=-1e-2, vmax=1e-2)
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#axs.imshow(np.log10(model_sub.reshape(mesh_sub.nCy,mesh_sub.nCx)),alpha=0.2,extent = (xx[0],xx[-1],yy[-1],yy[0]),interpolation='nearest',cmap='gray')
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global im3
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im3 = axs.streamplot(mesh_sub.vectorCCx, mesh_sub.vectorCCy, jx_CC_sub.T, jy_CC_sub.T,color='k',linewidth = lw.T,density=1.25)
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global im4
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im4 = axs.scatter(txii[ii],10, c='r', s=60, marker='+' )
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#plt.show()
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im1.set_array(Q_sub)
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im2.set_array(np.log10(model_sub.reshape(mesh_sub.nCy,mesh_sub.nCx)))
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#im2.set_array(mesh_sub.vectorCCx, mesh_sub.vectorCCy,jx_CC_sub.T,jy_CC_sub.T)
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return [im1] + [im2]
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#%% Create widget
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def removeStream():
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global im3
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im3.lines.remove()
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axs.patches = []
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global im4
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im4.remove()
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#def viewInv(msh,iteration):
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#, linewidth=lw.T
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#%%
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#interact(viewInv,msh = mesh_sub, iteration = IntSlider(min=0, max=len(txii)-1 ,step=1, value=0))
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# set embed_frames=True to embed base64-encoded frames directly in the HTML
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anim = animation.FuncAnimation(fig, animate, init_func=init,
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frames=len(txii), interval=10)
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anim.save('animation.html', writer=HTMLWriter(embed_frames=True))
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