def readSplines():
"""Read spline curves from a geometry file.
The geometry file splines.pgf is provided with the pyFormex distribution.
"""
from geomfile import GeometryFile
fn = getcfg('datadir')+'/splines.pgf'
f = GeometryFile(fn)
obj = f.read()
T = obj.values()
print len(T)
print [len(Si.coords) for Si in T]
def readSplines():
"""Read spline curves from a geometry file.
The geometry file splines.pgf is provided with the pyFormex distribution.
"""
from geomfile import GeometryFile
fn = getcfg('datadir')+'/splines.pgf'
f = GeometryFile(fn)
obj = f.read()
T = obj.values()
print(len(T))
print([len(Si.coords) for Si in T])
return T
def write(self,fil,sep=' ',mode='w'):
"""Write a Geometry to a .pgf file.
If fil is a string, a file with that name is opened. Else fil should
be an open file.
The Geometry is then written to that file in a native format, using
sep as separator between the coordinates.
If fil is a string, the file is closed prior to returning.
"""
from geomfile import GeometryFile
f = GeometryFile(fil,mode='w',sep=sep)
f.write(self)
if f.isname and mode[0]=='w':
f.close()
def readGeometry(filename, filetype=None):
"""Read geometry from a stored file.
This is a wrapper function over several other functions specialized
for some file type. Some file types require the existence of more
than one file, may need to write intermediate files, or may call
external programs.
The return value is a dictionary with named geometry objects read from
the file.
If no filetype is given, it is derived from the filename extension.
Currently the following file types can be handled.
'pgf': pyFormex Geometry File. This is the native pyFormex geometry
file format. It can store multiple parts of different type, together
with their name.
'surface': a global filetype for any of the following surface formats:
'stl', 'gts', 'off', 'neu'
'inp': Abaqus and CalculiX input format
'tetgen':
"""
pf.GUI.setBusy(True)
res = {}
if filetype is None:
filetype = utils.fileTypeFromExt(filename)
print("Reading file of type %s" % filetype)
if filetype == 'pgf' or filetype == 'pgf.gz':
res = GeometryFile(filename).read()
elif filetype in ['surface', 'stl', 'off', 'gts', 'neu']:
surf = TriSurface.read(filename)
name = autoName(TriSurface).next()
res = {name: surf}
elif filetype == 'inp':
parts = fileread.readInpFile(filename)
res = {}
color_by_part = len(parts.keys()) > 1
j = 0
for name, part in parts.items():
for i, mesh in enumerate(part.meshes()):
p = j if color_by_part else i
print("Color %s" % p)
res["%s-%s" % (name, i)] = mesh.setProp(p)
j += 1
elif filetype in tetgen.filetypes:
res = tetgen.readTetgen(filename)
else:
error("Can not import from file %s of type %s" % (filename, filetype))
pf.GUI.setBusy(False)
return res
def convertGeometryFile():
"""Convert pyFormex geometry file to latest format."""
filter = utils.fileDescription(['pgf', 'all'])
cur = pf.cfg['workdir']
fn = askFilename(cur=cur, filter=filter)
if fn:
from geomfile import GeometryFile
message("Converting geometry file %s to version %s" %
(fn, GeometryFile._version_))
GeometryFile(fn).rewrite()
def write(self,fil,sep=' ',mode='w'):
"""Write a Geometry to a .pgf file.
If fil is a string, a file with that name is opened. Else fil should
be an open file.
The Geometry is then written to that file in a native format, using
sep as separator between the coordinates.
If fil is a string, the file is closed prior to returning.
"""
from geomfile import GeometryFile
f = GeometryFile(fil,mode='w',sep=sep)
f.write(self)
if f.isname and mode[0]=='w':
f.close()
