def main():
parser = ArgumentParser(description=__doc__,
formatter_class=RawDescriptionHelpFormatter)
parser.add_argument('-s',
'--scale',
metavar='scale',
action='store',
dest='scale',
default=None,
help=helps['scale'])
parser.add_argument('-c',
'--center',
metavar='center',
action='store',
dest='center',
default=None,
help=helps['center'])
parser.add_argument('-r',
'--refine',
metavar='level',
action='store',
type=int,
dest='refine',
default=0,
help=helps['refine'])
parser.add_argument('-f',
'--format',
metavar='format',
action='store',
type=str,
dest='format',
default=None,
help=helps['format'])
parser.add_argument('-l',
'--list',
action='store_true',
dest='list',
help=helps['list'])
parser.add_argument('-m',
'--merge',
action='store_true',
dest='merge',
help=helps['merge'])
parser.add_argument('-t',
'--tri-tetra',
action='store_true',
dest='tri_tetra',
help=helps['tri-tetra'])
parser.add_argument('-2',
'--2d',
action='store_true',
dest='force_2d',
help=helps['2d'])
parser.add_argument('--save-per-mat',
action='store_true',
dest='save_per_mat',
help=helps['save-per-mat'])
parser.add_argument('--remesh',
metavar='options',
action='store',
dest='remesh',
default=None,
help=helps['remesh'])
parser.add_argument('filename_in')
parser.add_argument('filename_out')
options = parser.parse_args()
if options.list:
output('Supported readable mesh formats:')
output('--------------------------------')
output_mesh_formats('r')
output('')
output('Supported writable mesh formats:')
output('--------------------------------')
output_mesh_formats('w')
sys.exit(0)
scale = _parse_val_or_vec(options.scale, 'scale', parser)
center = _parse_val_or_vec(options.center, 'center', parser)
filename_in = options.filename_in
filename_out = options.filename_out
if options.remesh:
import tempfile
import shlex
import subprocess
dirname = tempfile.mkdtemp()
is_surface = options.remesh.startswith('q')
if is_surface:
mesh = Mesh.from_file(filename_in)
domain = FEDomain(mesh.name, mesh)
region = domain.create_region('surf', 'vertices of surface',
'facet')
surf_mesh = Mesh.from_region(region,
mesh,
localize=True,
is_surface=True)
filename = op.join(dirname, 'surf.mesh')
surf_mesh.write(filename, io='auto')
else:
import shutil
shutil.copy(filename_in, dirname)
filename = op.join(dirname, op.basename(filename_in))
qopts = ''.join(options.remesh.split()) # Remove spaces.
command = 'tetgen -BFENkACp%s %s' % (qopts, filename)
args = shlex.split(command)
subprocess.call(args)
root, ext = op.splitext(filename)
mesh = Mesh.from_file(root + '.1.vtk')
remove_files(dirname)
else:
mesh = Mesh.from_file(filename_in)
if options.force_2d:
data = list(mesh._get_io_data())
data[0] = data[0][:, :2]
mesh = Mesh.from_data(mesh.name, *data)
if scale is not None:
if len(scale) == 1:
tr = nm.eye(mesh.dim, dtype=nm.float64) * scale
elif len(scale) == mesh.dim:
tr = nm.diag(scale)
else:
raise ValueError('bad scale! (%s)' % scale)
mesh.transform_coors(tr)
if center is not None:
cc = 0.5 * mesh.get_bounding_box().sum(0)
shift = center - cc
tr = nm.c_[nm.eye(mesh.dim, dtype=nm.float64), shift[:, None]]
mesh.transform_coors(tr)
if options.refine > 0:
domain = FEDomain(mesh.name, mesh)
output('initial mesh: %d nodes %d elements' %
(domain.shape.n_nod, domain.shape.n_el))
for ii in range(options.refine):
output('refine %d...' % ii)
domain = domain.refine()
output('... %d nodes %d elements' %
(domain.shape.n_nod, domain.shape.n_el))
mesh = domain.mesh
if options.tri_tetra > 0:
mesh = triangulate(mesh, verbose=True)
if options.merge:
desc = mesh.descs[0]
coor, ngroups, conns = fix_double_nodes(mesh.coors,
mesh.cmesh.vertex_groups,
mesh.get_conn(desc))
mesh = Mesh.from_data(mesh.name + '_merged', coor, ngroups, [conns],
[mesh.cmesh.cell_groups], [desc])
if options.save_per_mat:
desc = mesh.descs[0]
conns, cgroups = mesh.get_conn(desc), mesh.cmesh.cell_groups
coors, ngroups = mesh.coors, mesh.cmesh.vertex_groups
mat_ids = nm.unique(cgroups)
for mat_id in mat_ids:
idxs = nm.where(cgroups == mat_id)[0]
imesh = Mesh.from_data(mesh.name + '_matid_%d' % mat_id, coors,
ngroups, [conns[idxs]], [cgroups[idxs]],
[desc])
fbase, fext = op.splitext(filename_out)
ifilename_out = '%s_matid_%d%s' % (fbase, mat_id, fext)
io = MeshIO.for_format(ifilename_out,
format=options.format,
writable=True)
output('writing %s...' % ifilename_out)
imesh.write(ifilename_out, io=io)
output('...done')
io = MeshIO.for_format(filename_out, format=options.format, writable=True)
cell_types = ', '.join(supported_cell_types[io.format])
output('writing [%s] %s...' % (cell_types, filename_out))
mesh.write(filename_out, io=io)
output('...done')
def generate_images(images_dir, examples_dir):
"""
Generate images from results of running examples found in
`examples_dir` directory.
The generated images are stored to `images_dir`,
"""
from sfepy.applications import solve_pde
from sfepy.postprocess.viewer import Viewer
from sfepy.postprocess.utils import mlab
prefix = output.prefix
output_dir = tempfile.mkdtemp()
trunk = os.path.join(output_dir, 'result')
options = Struct(output_filename_trunk=trunk,
output_format='vtk',
save_ebc=False,
save_ebc_nodes=False,
save_regions=False,
save_field_meshes=False,
save_regions_as_groups=False,
solve_not=False)
default_views = {'' : {}}
ensure_path(images_dir + os.path.sep)
view = Viewer('', offscreen=False)
for ex_filename in locate_files('*.py', examples_dir):
if _omit(ex_filename): continue
output.level = 0
output.prefix = prefix
ebase = ex_filename.replace(examples_dir, '')[1:]
output('trying "%s"...' % ebase)
try:
problem, state = solve_pde(ex_filename, options=options)
except KeyboardInterrupt:
raise
except:
problem = None
output('***** failed! *****')
if problem is not None:
if ebase in custom:
views = custom[ebase]
else:
views = default_views
tsolver = problem.get_time_solver()
if tsolver.ts is None:
suffix = None
else:
suffix = tsolver.ts.suffix % (tsolver.ts.n_step - 1)
filename = problem.get_output_name(suffix=suffix)
for suffix, kwargs in views.iteritems():
fig_filename = _get_fig_filename(ebase, images_dir, suffix)
fname = edit_filename(filename, suffix=suffix)
output('displaying results from "%s"' % fname)
disp_name = fig_filename.replace(sfepy.data_dir, '')
output('to "%s"...' % disp_name.lstrip(os.path.sep))
view.filename = fname
view(scene=view.scene, show=False, is_scalar_bar=True, **kwargs)
view.save_image(fig_filename)
mlab.clf()
output('...done')
remove_files(output_dir)
output('...done')
def main():
parser = ArgumentParser(description=__doc__,
formatter_class=RawDescriptionHelpFormatter)
parser.add_argument('-s', '--scale', metavar='scale',
action='store', dest='scale',
default=None, help=helps['scale'])
parser.add_argument('-c', '--center', metavar='center',
action='store', dest='center',
default=None, help=helps['center'])
parser.add_argument('-r', '--refine', metavar='level',
action='store', type=int, dest='refine',
default=0, help=helps['refine'])
parser.add_argument('-f', '--format', metavar='format',
action='store', type=str, dest='format',
default=None, help=helps['format'])
parser.add_argument('-l', '--list', action='store_true',
dest='list', help=helps['list'])
parser.add_argument('-m', '--merge', action='store_true',
dest='merge', help=helps['merge'])
parser.add_argument('-t', '--tri-tetra', action='store_true',
dest='tri_tetra', help=helps['tri-tetra'])
parser.add_argument('-2', '--2d', action='store_true',
dest='force_2d', help=helps['2d'])
parser.add_argument('--save-per-mat', action='store_true',
dest='save_per_mat', help=helps['save-per-mat'])
parser.add_argument('--remesh', metavar='options',
action='store', dest='remesh',
default=None, help=helps['remesh'])
parser.add_argument('filename_in')
parser.add_argument('filename_out')
options = parser.parse_args()
if options.list:
output('Supported readable mesh formats:')
output('--------------------------------')
output_mesh_formats('r')
output('')
output('Supported writable mesh formats:')
output('--------------------------------')
output_mesh_formats('w')
sys.exit(0)
scale = _parse_val_or_vec(options.scale, 'scale', parser)
center = _parse_val_or_vec(options.center, 'center', parser)
filename_in = options.filename_in
filename_out = options.filename_out
if options.remesh:
import tempfile
import shlex
import subprocess
dirname = tempfile.mkdtemp()
is_surface = options.remesh.startswith('q')
if is_surface:
mesh = Mesh.from_file(filename_in)
domain = FEDomain(mesh.name, mesh)
region = domain.create_region('surf', 'vertices of surface',
'facet')
surf_mesh = Mesh.from_region(region, mesh,
localize=True, is_surface=True)
filename = op.join(dirname, 'surf.mesh')
surf_mesh.write(filename, io='auto')
else:
import shutil
shutil.copy(filename_in, dirname)
filename = op.join(dirname, op.basename(filename_in))
qopts = ''.join(options.remesh.split()) # Remove spaces.
command = 'tetgen -BFENkACp%s %s' % (qopts, filename)
args = shlex.split(command)
subprocess.call(args)
root, ext = op.splitext(filename)
mesh = Mesh.from_file(root + '.1.vtk')
remove_files(dirname)
else:
mesh = Mesh.from_file(filename_in)
if options.force_2d:
data = list(mesh._get_io_data())
data[0] = data[0][:, :2]
mesh = Mesh.from_data(mesh.name, *data)
if scale is not None:
if len(scale) == 1:
tr = nm.eye(mesh.dim, dtype=nm.float64) * scale
elif len(scale) == mesh.dim:
tr = nm.diag(scale)
else:
raise ValueError('bad scale! (%s)' % scale)
mesh.transform_coors(tr)
if center is not None:
cc = 0.5 * mesh.get_bounding_box().sum(0)
shift = center - cc
tr = nm.c_[nm.eye(mesh.dim, dtype=nm.float64), shift[:, None]]
mesh.transform_coors(tr)
if options.refine > 0:
domain = FEDomain(mesh.name, mesh)
output('initial mesh: %d nodes %d elements'
% (domain.shape.n_nod, domain.shape.n_el))
for ii in range(options.refine):
output('refine %d...' % ii)
domain = domain.refine()
output('... %d nodes %d elements'
% (domain.shape.n_nod, domain.shape.n_el))
mesh = domain.mesh
if options.tri_tetra > 0:
conns = None
for k, new_desc in [('3_8', '3_4'), ('2_4', '2_3')]:
if k in mesh.descs:
conns = mesh.get_conn(k)
break
if conns is not None:
nelo = conns.shape[0]
output('initial mesh: %d elements' % nelo)
new_conns = elems_q2t(conns)
nn = new_conns.shape[0] // nelo
new_cgroups = nm.repeat(mesh.cmesh.cell_groups, nn)
output('new mesh: %d elements' % new_conns.shape[0])
mesh = Mesh.from_data(mesh.name, mesh.coors,
mesh.cmesh.vertex_groups,
[new_conns], [new_cgroups], [new_desc])
if options.merge:
desc = mesh.descs[0]
coor, ngroups, conns = fix_double_nodes(mesh.coors,
mesh.cmesh.vertex_groups,
mesh.get_conn(desc), 1e-9)
mesh = Mesh.from_data(mesh.name + '_merged',
coor, ngroups,
[conns], [mesh.cmesh.cell_groups], [desc])
if options.save_per_mat:
desc = mesh.descs[0]
conns, cgroups = mesh.get_conn(desc), mesh.cmesh.cell_groups
coors, ngroups = mesh.coors, mesh.cmesh.vertex_groups
mat_ids = nm.unique(cgroups)
for mat_id in mat_ids:
idxs = nm.where(cgroups == mat_id)[0]
imesh = Mesh.from_data(mesh.name + '_matid_%d' % mat_id,
coors, ngroups,
[conns[idxs]], [cgroups[idxs]], [desc])
fbase, fext = op.splitext(filename_out)
ifilename_out = '%s_matid_%d%s' % (fbase, mat_id, fext)
io = MeshIO.for_format(ifilename_out, format=options.format,
writable=True)
output('writing %s...' % ifilename_out)
imesh.write(ifilename_out, io=io)
output('...done')
io = MeshIO.for_format(filename_out, format=options.format,
writable=True)
cell_types = ', '.join(supported_cell_types[io.format])
output('writing [%s] %s...' % (cell_types, filename_out))
mesh.write(filename_out, io=io)
output('...done')
def generate_images(images_dir, examples_dir):
"""
Generate images from results of running examples found in
`examples_dir` directory.
The generated images are stored to `images_dir`,
"""
from sfepy.applications import solve_pde
from sfepy.postprocess import Viewer
from sfepy.postprocess.utils import mlab
prefix = output.prefix
output_dir = tempfile.mkdtemp()
trunk = os.path.join(output_dir, 'result')
options = Struct(output_filename_trunk=trunk,
output_format='vtk',
save_ebc=False,
save_ebc_nodes=False,
save_regions=False,
save_field_meshes=False,
save_regions_as_groups=False,
solve_not=False)
default_views = {'' : {}}
ensure_path(images_dir + os.path.sep)
view = Viewer('', offscreen=False)
for ex_filename in locate_files('*.py', examples_dir):
if _omit(ex_filename): continue
output.level = 0
output.prefix = prefix
ebase = ex_filename.replace(examples_dir, '')[1:]
output('trying "%s"...' % ebase)
try:
problem, state = solve_pde(ex_filename, options=options)
except KeyboardInterrupt:
raise
except:
problem = None
output('***** failed! *****')
if problem is not None:
if ebase in custom:
views = custom[ebase]
else:
views = default_views
tsolver = problem.get_time_solver()
if tsolver.ts is None:
suffix = None
else:
suffix = tsolver.ts.suffix % (tsolver.ts.n_step - 1)
filename = problem.get_output_name(suffix=suffix)
for suffix, kwargs in views.iteritems():
fig_filename = _get_fig_filename(ebase, images_dir, suffix)
fname = edit_filename(filename, suffix=suffix)
output('displaying results from "%s"' % fname)
disp_name = fig_filename.replace(sfepy.data_dir, '')
output('to "%s"...' % disp_name.lstrip(os.path.sep))
view.filename = fname
view(scene=view.scene, show=False, is_scalar_bar=True,
fig_filename=fig_filename, **kwargs)
mlab.clf()
output('...done')
remove_files(output_dir)
output('...done')
def generate_images(images_dir, examples_dir):
"""
Generate images from results of running examples found in
`examples_dir` directory.
The generated images are stored to `images_dir`,
"""
from sfepy.applications import solve_pde
from sfepy.postprocess import Viewer
from sfepy.postprocess.utils import mlab
prefix = output.prefix
output_dir = tempfile.mkdtemp()
trunk = os.path.join(output_dir, "result")
options = Struct(
output_filename_trunk=trunk,
output_format="vtk",
save_ebc=False,
save_regions=False,
save_field_meshes=False,
save_regions_as_groups=False,
solve_not=False,
)
ensure_path(images_dir + os.path.sep)
view = Viewer("", output_dir=output_dir, offscreen=False)
for ex_filename in locate_files("*.py", examples_dir):
if _omit(ex_filename):
continue
output.level = 0
output.prefix = prefix
ebase = ex_filename.replace(examples_dir, "")[1:]
output('trying "%s"...' % ebase)
try:
problem, state = solve_pde(ex_filename, options=options)
except KeyboardInterrupt:
raise
except:
problem = None
output("***** failed! *****")
if problem is not None:
fig_filename = _get_fig_filename(ebase, images_dir)[1]
if problem.ts_conf is None:
filename = trunk + ".vtk"
else:
suffix = problem.ts.suffix % problem.ts.step
filename = problem.get_output_name(suffix=suffix)
output('displaying results from "%s"' % filename)
output('to "%s"...' % fig_filename.replace(sfepy.data_dir, "")[1:])
view.filename = filename
view(scene=view.scene, show=False, is_scalar_bar=True, fig_filename=fig_filename)
mlab.clf()
output("...done")
remove_files(output_dir)
output("...done")
