/[escript]/trunk/doc/examples/cookbook/example09m.py
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Contents of /trunk/doc/examples/cookbook/example09m.py

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Revision 3069 - (show annotations)
Wed Jul 21 03:24:48 2010 UTC (11 years, 2 months ago) by ahallam
File MIME type: text/x-python
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Updates to layer cake and cookbook as well as examples.
1
2 ########################################################
3 #
4 # Copyright (c) 2009-2010 by University of Queensland
5 # Earth Systems Science Computational Center (ESSCC)
6 # http://www.uq.edu.au/esscc
7 #
8 # Primary Business: Queensland, Australia
9 # Licensed under the Open Software License version 3.0
10 # http://www.opensource.org/licenses/osl-3.0.php
11 #
12 ########################################################
13
14 __copyright__="""Copyright (c) 2009-2010 by University of Queensland
15 Earth Systems Science Computational Center (ESSCC)
16 http://www.uq.edu.au/esscc
17 Primary Business: Queensland, Australia"""
18 __license__="""Licensed under the Open Software License version 3.0
19 http://www.opensource.org/licenses/osl-3.0.php"""
20 __url__="https://launchpad.net/escript-finley"
21
22 """
23 Author: Antony Hallam antony.hallam@uqconnect.edu.au
24 """
25
26
27 ############################################################FILE HEADER
28 # example09m.py
29 # Create a simple 3D model for use in example09. This is the low res
30 # mesh for illustration purposes only.
31 #
32 #######################################################EXTERNAL MODULES
33 from esys.pycad import * #domain constructor
34 from esys.pycad.gmsh import Design #Finite Element meshing package
35 from esys.finley import MakeDomain #Converter for escript
36 from esys.escript import mkDir, getMPISizeWorld
37 import os
38 ########################################################MPI WORLD CHECK
39 if getMPISizeWorld() > 1:
40 import sys
41 print "This example will not run in an MPI world."
42 sys.exit(0)
43
44 # make sure path exists
45 save_path= os.path.join("data","example09")
46 mkDir(save_path)
47
48 ################################################ESTABLISHING PARAMETERS
49 #Model Parameters
50 xwidth=1000.0 #x width of model
51 ywidth=1000.0 #y width of model
52 depth=200.0 #depth of model
53 intf=depth/2. #Depth of the interface.
54 element_size=5.0
55
56 ####################################################DOMAIN CONSTRUCTION
57 # Domain Corners
58 p0=Point(0.0, 0.0, 0.0)
59 p1=Point(xwidth, 0.0, 0.0)
60 p2=Point(xwidth, ywidth, 0.0)
61 p3=Point(0.0, ywidth, 0.0)
62 p4=Point(0.0, ywidth, depth)
63 p5=Point(0.0, 0.0, depth)
64 p6=Point(xwidth, 0.0, depth)
65 p7=Point(xwidth, ywidth, depth)
66 # Join corners in anti-clockwise manner.
67 l01=Line(p0, p1)
68 l12=Line(p1, p2)
69 l23=Line(p2, p3)
70 l30=Line(p3, p0)
71 l56=Line(p5, p6)
72 l67=Line(p6, p7)
73 l74=Line(p7, p4)
74 l45=Line(p4, p5)
75
76 # Join line segments to create domain boundaries and then surfaces
77 ctop=CurveLoop(l01, l12, l23, l30); stop=PlaneSurface(ctop)
78 cbot=CurveLoop(-l67, -l56, -l45, -l74); sbot=PlaneSurface(cbot)
79
80 # for each side
81 ip0=Point(0.0, 0.0, intf)
82 ip1=Point(xwidth, 0.0, intf)
83 ip2=Point(xwidth, ywidth, intf)
84 ip3=Point(0.0, ywidth, intf)
85
86 linte_ar=[]; #lines for vertical edges
87 linhe_ar=[]; #lines for horizontal edges
88 linte_ar.append(Line(p0,ip0))
89 linte_ar.append(Line(ip0,p5))
90 linte_ar.append(Line(p1,ip1))
91 linte_ar.append(Line(ip1,p6))
92 linte_ar.append(Line(p2,ip2))
93 linte_ar.append(Line(ip2,p7))
94 linte_ar.append(Line(p3,ip3))
95 linte_ar.append(Line(ip3,p4))
96
97 linhe_ar.append(Line(ip0,ip1))
98 linhe_ar.append(Line(ip1,ip2))
99 linhe_ar.append(Line(ip2,ip3))
100 linhe_ar.append(Line(ip3,ip0))
101
102 cintfa_ar=[]; cintfb_ar=[] #curveloops for above and below interface on sides
103 cintfa_ar.append(CurveLoop(linte_ar[0],linhe_ar[0],-linte_ar[2],-l01))
104 cintfa_ar.append(CurveLoop(linte_ar[2],linhe_ar[1],-linte_ar[4],-l12))
105 cintfa_ar.append(CurveLoop(linte_ar[4],linhe_ar[2],-linte_ar[6],-l23))
106 cintfa_ar.append(CurveLoop(linte_ar[6],linhe_ar[3],-linte_ar[0],-l30))
107
108 cintfb_ar.append(CurveLoop(linte_ar[1],l56,-linte_ar[3],-linhe_ar[0]))
109 cintfb_ar.append(CurveLoop(linte_ar[3],l67,-linte_ar[5],-linhe_ar[1]))
110 cintfb_ar.append(CurveLoop(linte_ar[5],l74,-linte_ar[7],-linhe_ar[2]))
111 cintfb_ar.append(CurveLoop(linte_ar[7],l45,-linte_ar[1],-linhe_ar[3]))
112
113 sintfa_ar=[PlaneSurface(cintfa_ar[i]) for i in range(0,4)]
114 sintfb_ar=[PlaneSurface(cintfb_ar[i]) for i in range(0,4)]
115
116 sintf=PlaneSurface(CurveLoop(*tuple(linhe_ar)))
117
118 vintfa=Volume(SurfaceLoop(stop,-sintf,*tuple(sintfa_ar)))
119 vintfb=Volume(SurfaceLoop(sbot,sintf,*tuple(sintfb_ar)))
120
121 # Create the volume.
122 #sloop=SurfaceLoop(stop,sbot,*tuple(sintfa_ar+sintfb_ar))
123 #model=Volume(sloop)
124
125
126 #############################################EXPORTING MESH FOR ESCRIPT
127 # Create a Design which can make the mesh
128 d=Design(dim=3, element_size=5.0, order=2)
129
130 d.addItems(PropertySet('vintfa',vintfa))
131 d.addItems(PropertySet('vintfb',vintfb))
132 d.addItems(PropertySet('stop',stop))
133 d.addItems(PropertySet('sbpt',sbot))
134
135 d.setScriptFileName(os.path.join(save_path,"example09m.geo"))
136 d.setMeshFileName(os.path.join(save_path,"example09m.msh"))
137 #
138 # make the finley domain:
139 #
140 domain=MakeDomain(d)
141 # Create a file that can be read back in to python with
142 # mesh=ReadMesh(fileName)
143 domain.write(os.path.join(save_path,"example09m.fly"))
144
145 from esys.pycad import layer_cake
146 intfaces=[10,30,50,55,80,100,200,250,400,500]
147
148 # Specify the domain.
149 domaindes=Design(dim=3,element_size=element_size,order=2)
150 cmplx_domain=layer_cake.LayerCake(domaindes,xwidth,ywidth,intfaces)
151 cmplx_domain.setScriptFileName(os.path.join(save_path,"example09lc.geo"))
152 cmplx_domain.setMeshFileName(os.path.join(save_path,"example09lc.msh"))
153 dcmplx=MakeDomain(cmplx_domain)
154 dcmplx.write(os.path.join(save_path,"example09lc.fly"))
155
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