/[escript]/trunk/doc/examples/cookbook/example10c_0.py
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Wed Feb 7 02:12:08 2018 UTC (12 months, 2 weeks ago) by jfenwick
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Copyright dates update

1 ##############################################################################
2 #
3 # Copyright (c) 2003-2018 by The University of Queensland
4 # http://www.uq.edu.au
5 #
6 # Primary Business: Queensland, Australia
7 # Licensed under the Apache License, version 2.0
8 # http://www.apache.org/licenses/LICENSE-2.0
9 #
10 # Development until 2012 by Earth Systems Science Computational Center (ESSCC)
11 # Development 2012-2013 by School of Earth Sciences
12 # Development from 2014 by Centre for Geoscience Computing (GeoComp)
13 #
14 ##############################################################################
15 from __future__ import division, print_function
16
17 __copyright__="""Copyright (c) 2003-2018 by The University of Queensland
18 http://www.uq.edu.au
19 Primary Business: Queensland, Australia"""
20 __license__="""Licensed under the Apache License, version 2.0
21 http://www.apache.org/licenses/LICENSE-2.0"""
22 __url__="https://launchpad.net/escript-finley"
23
24 from esys.escript import *
25 from esys.pycad import *
26 from esys.pycad.gmsh import Design
27 from esys.escript.unitsSI import *
28 from math import tan
29
30 try:
31 # This imports the rectangle domain function
32 from esys.finley import MakeDomain
33 HAVE_FINLEY = True
34 except ImportError:
35 print("Finley module not available")
36 HAVE_FINLEY = False
37 #the folder to put our outputs in, leave blank "" for script path
38 save_path= os.path.join("data","example10")
39 #
40 # input data:
41 #
42 width=5*km
43 length=5*km
44 depth=2*km
45 fault_w_front=200*m
46 fault_w_back=200*m
47 fault_mid_front=2*km
48 fault_mid_back=4*km
49 fault_dip_front=30*DEG
50 fault_dip_back=30*DEG
51
52 layers_left_at_front=[ [ 'limestone' , 1100*m ] , [ 'xx' , 150*m ] ,['shale',300*m], [ 'limestone' ] ]
53 layers_right_at_front=[ [ 'limestone' , 500*m ], [ 'xx' , 150*m ],['shale',300*m], ['limestone' ] ]
54 slop=2*DEG
55 #
56 # ====================================================================================
57 #
58 def setOffsetsFromThickness(layers):
59 l=0
60 offsets=[]
61 for n in layers:
62 if len(n)<2:
63 d=depth-l
64 if depth-l <=0:
65 raise "Layer structure is too thick. Increase depth > %e"%l
66 else:
67 d=n[1]
68 l+=d
69 offsets.append([ n[0], -(l-d), d, -l ])
70 return offsets
71 def setVerticalPositionsFromDip(layers, dip):
72 offsets=[]
73 s=1/tan(90*DEG-dip)
74 for n in layers:
75 name=n[0]
76 top=n[1]
77 d=n[2]
78 bot=n[3]
79 offsets.append([ name, top, s*top, d, bot, s*bot ] )
80 return offsets
81
82 def setBackLayers(layers, slop, dip):
83 if layers[0][3]-tan(slop)*length <=0:
84 raise ValueError("negative thickness in %s at back"%(layers[0][0],))
85 out=[[ layers[0][0], layers[0][3]-tan(slop)*length ]]
86 for i in range(1,len(layers)-1): out.append([layers[i][0], layers[i][3] ])
87 out.append([ layers[-1][0] ])
88 out=setOffsetsFromThickness(out)
89 return setVerticalPositionsFromDip(out, dip)
90
91 def getCutLine(p0,layers,offset=True):
92 out=[ ]
93 p=p0
94 for n in layers:
95 if offset:
96 p1,p = p, Point(p0.getCoordinates()[0]+n[5],p0.getCoordinates()[1],p0.getCoordinates()[2]+n[4])
97 else:
98 p1,p = p, Point(p0.getCoordinates()[0],p0.getCoordinates()[1],p0.getCoordinates()[2]+n[4])
99 out.append(Line(p1,p))
100 return out
101
102 def getBackLine(front, back):
103 out = [ Line(front[0].getStartPoint(), back[0].getStartPoint()) ]
104 for i in range(len(front)):
105 out.append(Line(front[i].getEndPoint(), back[i].getEndPoint()))
106 return out
107
108 def getCrossLine(left, right):
109 return getBackLine(left,right)
110
111 def addVolume(front_left, back_left, front_right, back_right, PS, FF, map, filter_left=False):
112
113 front_to_back_left = getBackLine(front_left , back_left)
114 front_to_back_right = getBackLine(front_right , back_right)
115 front_left_to_right= getCrossLine(front_left, front_right)
116 back_left_to_right= getCrossLine(back_left, back_right)
117
118 #if filter_left:
119 # out1=front_to_back_left[0]
120 # out2=front_to_back_left[-1]
121 #else:
122 out1=front_to_back_right[0]
123 out2=front_to_back_right[-1]
124
125 topface=PlaneSurface(CurveLoop(front_left_to_right[0], front_to_back_right[0], -back_left_to_right[0], -front_to_back_left[0]))
126 for i in range(len(map)):
127 name=map[i][0]
128 face2=PlaneSurface(CurveLoop(front_left_to_right[i+1], front_to_back_right[i+1], -back_left_to_right[i+1], -front_to_back_left[i+1]))
129 face_front=PlaneSurface(CurveLoop(front_left_to_right[i+1], -front_right[i], -front_left_to_right[i], front_left[i]))
130 face_back=PlaneSurface(CurveLoop(back_left_to_right[i+1], -back_right[i], -back_left_to_right[i], back_left[i]))
131 face_left=PlaneSurface(CurveLoop(front_left[i], front_to_back_left[i+1], -back_left[i], -front_to_back_left[i]))
132 face_right=PlaneSurface(CurveLoop(front_right[i], front_to_back_right[i+1], -back_right[i], -front_to_back_right[i]))
133
134 v=Volume(SurfaceLoop(topface,-face2, face_front, -face_back, -face_left, face_right))
135 print(v)
136 topface=face2
137 if filter_left:
138 FF.append(face_right)
139 else:
140 FF.append(-face_right)
141 if name not in PS: PS[name]=PropertySet(name)
142 PS[name].addItem(v)
143 return out1, out2, PS, FF
144
145
146
147 if HAVE_FINLEY:
148 layers_left_at_edge_at_front=setOffsetsFromThickness(layers_left_at_front)
149 layers_right_at_edge_at_front=setOffsetsFromThickness(layers_right_at_front)
150
151 layers_left_at_front=setVerticalPositionsFromDip(layers_left_at_edge_at_front, fault_dip_front)
152 layers_right_at_front=setVerticalPositionsFromDip(layers_right_at_edge_at_front, fault_dip_front)
153
154
155 layers_left_at_back=setBackLayers(layers_left_at_front, slop, fault_dip_back)
156 layers_right_at_back=setBackLayers(layers_right_at_front, slop, fault_dip_back)
157
158
159 left_front_edge=getCutLine(Point(0.,0.,0.), layers_left_at_front, offset=False)
160 left_front_fault=getCutLine(Point(fault_mid_front-fault_w_front/2,0.,0.), layers_left_at_front, offset=True)
161
162 right_front_fault=getCutLine(Point(fault_mid_front+fault_w_front/2,0.,0.), layers_right_at_front, offset=True)
163 right_front_edge=getCutLine(Point(width,0.,0.), layers_right_at_front, offset=False)
164
165 left_back_edge=getCutLine(Point(0.,length,0.), layers_left_at_back, offset=False)
166 left_back_fault=getCutLine(Point(fault_mid_back-fault_w_back/2,length,0.), layers_left_at_back, offset=True)
167
168 right_back_fault=getCutLine(Point(fault_mid_back+fault_w_back/2,length,0.), layers_right_at_back, offset=True)
169 right_back_edge=getCutLine(Point(width,length,0.), layers_right_at_back, offset=False)
170
171 PS={}
172 FF=[]
173 front_to_back_left_top, front_to_back_left_bot, PS, FF=addVolume(left_front_edge, left_back_edge, left_front_fault, left_back_fault, PS, FF, layers_left_at_front, filter_left=False)
174 front_to_back_right_top, front_to_back_right_bot, PS, FF=addVolume(right_front_edge, right_back_edge, right_front_fault, right_back_fault, PS, FF, layers_right_at_front, filter_left=True)
175
176 fault_line_top_front=Line(front_to_back_left_top.getStartPoint(), front_to_back_right_top.getStartPoint())
177 fault_line_bot_front=Line(front_to_back_left_bot.getStartPoint(), front_to_back_right_bot.getStartPoint())
178 fault_line_top_back=Line(front_to_back_left_top.getEndPoint(), front_to_back_right_top.getEndPoint())
179 fault_line_bot_back=Line(front_to_back_left_bot.getEndPoint(), front_to_back_right_bot.getEndPoint())
180
181 FF.append(PlaneSurface(CurveLoop(front_to_back_left_top,fault_line_top_back,-front_to_back_right_top,-fault_line_top_front)))
182 FF.append(-PlaneSurface(CurveLoop(front_to_back_left_bot,fault_line_bot_back,-front_to_back_right_bot,-fault_line_bot_front)))
183
184 FF.append(PlaneSurface(CurveLoop(*tuple([ -fault_line_top_front,fault_line_bot_front ]+left_front_fault+[ -l for l in right_front_fault ]))))
185 FF.append(-PlaneSurface(CurveLoop(*tuple([ -fault_line_top_back,fault_line_bot_back ]+left_back_fault+[ -l for l in right_back_fault ]))))
186
187
188 # war 120
189 des=Design(dim=3, order=1, element_size = 400*m, keep_files=True)
190 des.addItems(*tuple(PS.values()))
191 des.addItems(PropertySet("fault",Volume(SurfaceLoop( *tuple(FF)))))
192 des.setMeshFileName(os.path.join(save_path,"fault.msh"))
193 dom=MakeDomain(des)
194 dom.write(os.path.join(save_path,"fault.fly"))
195

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