Anders Logg wrote: > Looks like the new Expression interface might be working now but more > tests are needed. Please help out getting all the demos over to the > new interface. > > The changes to the interface are as follows: > > 1. V=V argument in Expression should be removed > > 2. mesh argument in Constant should be removed > > 3. Subclasses of Expression overloading eval must overload dim if not > scalar > > The Poisson and elasticity demos have been moved and both work.
Attached a patch (I think) cleaning up the hyperelasticity demo. Harish
# Bazaar merge directive format 2 (Bazaar 0.90) # revision_id: [email protected] # target_branch: bzr+ssh://bazaar.launchpad.net/~dolfin-\ # core/dolfin/main/ # testament_sha1: 0211fe69b173e5afe7620f71c063b61f4b8c1056 # timestamp: 2009-11-26 21:40:47 +0000 # base_revision_id: [email protected] # # Begin patch === modified file 'demo/pde/hyperelasticity/python/demo.py' --- demo/pde/hyperelasticity/python/demo.py 2009-10-12 08:20:23 +0000 +++ demo/pde/hyperelasticity/python/demo.py 2009-11-26 21:35:24 +0000 @@ -1,14 +1,13 @@ -""" This demo program solves a hyperelastic problem - -Implemented in python from cpp demo by Johan Hake. - -""" +""" This demo program solves a hyperelastic problem. It is implemented +in Python by Johan Hake following the C++ demo by Harish Narayanan""" __author__ = "Johan Hake ([email protected])" __date__ = "2009-10-11 -- 2009-10-11" __copyright__ = "Copyright (C) 2008 Johan Hake" __license__ = "GNU LGPL Version 2.1" +# Modified by Harish Narayanan, 2009. + from dolfin import * # Optimize compilation of the form @@ -23,11 +22,11 @@ V = VectorFunctionSpace(mesh, "CG", 1) # Define Dirichlet boundary (x = 0 or x = 1) -c = Expression(("0.0", "0.0", "0.0"), V = V) +c = Expression(("0.0", "0.0", "0.0")) r = Expression(("0.0", "y0 + (x[1] - y0) * cos(theta) - (x[2] - z0) * sin(theta) - x[1]", "z0 + (x[1] - y0) * sin(theta) + (x[2] - z0) * cos(theta) - x[2]"), - defaults = dict(y0 = 0.5, z0 = 0.5, theta = pi / 3), V = V) + defaults = dict(y0 = 0.5, z0 = 0.5, theta = pi / 3)) left, right = compile_subdomains(["(fabs(x[0]) < DOLFIN_EPS) && on_boundary", "(fabs(x[0] - 1.0) < DOLFIN_EPS) && on_boundary"]) @@ -39,8 +38,8 @@ v = TestFunction(V) # Test function du = TrialFunction(V) # Incremental displacement u = Function(V) # Displacement from previous iteration -B = Expression(("0.0", "0.0", "0.0"), V = V) # Body force per unit mass -T = Expression(("0.0", "0.0", "0.0"), V = V) # Traction force on the boundary +B = Expression(("0.0", "0.0", "0.0")) # Body force per unit mass +T = Expression(("0.0", "0.0", "0.0")) # Traction force on the boundary # Kinematics I = Identity(v.cell().d) # Identity tensor @@ -53,8 +52,8 @@ Em = 10.0 nu = 0.3 -mu = Constant(mesh, Em / (2*(1 + nu))) # Lame's constants -lmbda = Constant(mesh, Em * nu / ((1 + nu) * (1 - 2 * nu))); +mu = Constant(Em / (2*(1 + nu))) # Lame's constants +lmbda = Constant(Em * nu / ((1 + nu) * (1 - 2 * nu))) # Strain energy function (material model) psi = lmbda/2*(tr(E)**2) + mu*tr(E*E) @@ -75,4 +74,4 @@ file << u; # Plot and hold solution -plot(u, interactive = True) +plot(u, mode = "displacement", interactive = True) # Begin bundle IyBCYXphYXIgcmV2aXNpb24gYnVuZGxlIHY0CiMKQlpoOTFBWSZTWf7lducAAhrfgEEUWP//91p3 RgC/79/wUASb22AOXo3rAHoGqeQoxGhoDNJkPUeoAAAAAMkFNpqeptMqb0jUNHqeoAAABoAGggKT 9NUMTMoeobRMEMEaB6QANNUmjIyA00GTQDTTRoyDJkAASRJkAJoJ6GpgU9CbUaCaB6nlMmajCncr cxf2LV96qRgp50qBg5Q6fhQA0wIQ6FVEuNjuV0aIyrzBYyD8OT9PluF0jx3tXD0tgq4eev+APWsm R+MaRGdAEoBuGOqSgiE5CD7xxEdLmgcoVhMiWoruAnbwYTRaTKVfGFlj7W6TV7wnFwObHROqsjni kZv+mJRf5KDaOLGGBNZdW8tzNTr19+iRX3xQadovitCpYgy6vO+qSpUXxcpGYj3nkweHN700CdYZ OfWQrWl3Ec4vVZT4jrcK6bDntU8V4z7RFbH3S5hYrgtk1WPh2SHa1ke0pvBB2IIqpUCTRM3UU1a/ GC0qZxKehhky6kx7th8Yz2g7HJM7Ra+/7ZlrK65yQJmViqUZRqLKpCH6z57z5lYqqFtX/WwVejs6 8YootG8jZqeoVqnYatnza3MULvjySM1NGsW+nKh2QUZY0qaM+BqqiG5NLBqXTwrYlG+AssSrK72V 1U6iuiczVM5Yk0FuodUXl606Cgo7QoO0s91I+qhh+grL9hEgoiz3DwkzUFi67WqZnN+DSA7TI3jP ljqoqSFA+qgfcKTblyCDpv00FsItOIL4PqkDQ5CtWxeLI5qZnWQIetCChlgI0sJBhnhURKl2qRKG NBQWM/YVsSk6zMRdNO0xEFRY7HCQORCOV6xafIxcMiqJTkRhQkEmdgLEKvhRDJhEmTzUWuH18YFz T5BMGbI5T6yXHx3luw5kb4hil539ZvXTpaLIOoiMJg6fdSSzIqWizOMO19Yjw8l36jwe5Md/iqtd G7ey4INlNli96KRqVwz7zOdc5rtii05yZMXFoQvxngu6JdAyqKlljl7UnCfpE8nEkpsrE9SYECp9 Y5clNomWq25YrLI5gkHktDE/A8xpHRdApxBjKqT3Y4WqTceNGK7ra0T1UGiyCOBzsCXlR1M0TCwk lS1TaK6qgbU4RUPpiXmOrSUNNEw52r06c+yjZBHImFtFMaleh+S9Umitq16UzhVGGIQb07juGmzx XTA36UGmJtZmz68v0myjMsUoKBXpBq26BGEfaJ88M8pUgcp8y5hdhz2U08IdqbEW5ajEOKWwKQpc PeFDkVr5zcfAVeMKX1qVZNH6E7isxfolsgqJEiq87KZhUSkStZEBpJmdkzIZJouI2pNMFrRZQ4Tf AIhNUwykMmd1QEFosWzaDrasAf8v5aE/531ZbwNRdeydkdf7UajAKUdrq3VvfPbkzL2gQ+xO/kLP HfZu8wnK96f48OAcV5PeHPTIRAoiQRaFd0SJ3SWVCh6lSjje3qnFS5oB351hArEHGwjF2WwBxNMy V5YuVkqhd4OVoZ/1F1dzeoX7zwyKrkPCTEbDkyOKhXQe68tU8wUopk64CvOMA+XopaWiHdffbbMK utW6An1r4BBWclc+renM/osBHA9pGjOLopaC4/8XckU4UJD+5Xbn
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