def LoadFile(self, filename):
extension = os.path.basename(filename).split(".").pop().lower()
start_time = time.time()
if extension =="step" or extension == "stp":
stepReader = STEPControl.STEPControl_Reader()
stepReader.ReadFile(str(filename))
numTranslated = stepReader.TransferRoots()
shape = stepReader.OneShape()
elif extension == "stl":
shape = TopoDS.TopoDS_Shape()
stl_reader = StlAPI.StlAPI_Reader()
stl_reader.Read(shape,str(filename))
elif extension =="iges" or extension =="igs":
i = IGESControl.IGESControl_Controller()
i.Init()
iges_reader = IGESControl.IGESControl_Reader()
iges_reader.ReadFile(str(filename))
iges_reader.TransferRoots()
shape = iges_reader.OneShape()
elif extension == "brep":
shape = TopoDS.TopoDS_Shape()
builder = BRep.BRep_Builder()
BRepTools.BRepTools().Read(shape,str(filename),builder)
else:
return True
self.canva._3dDisplay.EraseAll()
self.canva._3dDisplay.DisplayShape(shape)
wx.SafeYield()
self.canva._3dDisplay.View_Iso()
self.canva._3dDisplay.FitAll()
end_time = time.time()
self.SetTitle("pythonOCC Interactive Console %s:%s"%(VERSION,filename))
duration = end_time-start_time
print "%s STEP file loaded and displayed in %f seconds."%(filename,duration)
def toSTEP(shape, filename, verbose=False, tolerance=0.001):
'''
Writes STL output of the solid
:param filename: Path of the file to write JSON to
:type filename: str
:param verbose: Choose if you want to see the STEP stats
:type verbose: bool
:param tolerance: Provides control over quality of exported STEP.
:type tolernace: float
'''
class Verboseness():
def __enter__(self):
if not verbose:
import sys, os
sys.stdout.flush()
self.newstdout = os.dup(1)
self.devnull = os.open('/dev/null', os.O_WRONLY)
os.dup2(self.devnull, 1)
os.close(self.devnull)
sys.stdout = os.fdopen(self.newstdout, 'w')
def __exit__(self, type, value, traceback):
if not verbose:
os.dup2(self.newstdout, 1)
with Verboseness():
stepWriter = STEPControl.STEPControl_Writer()
stepWriter.SetTolerance(tolerance)
if shape:
status = stepWriter.Transfer(shape, STEPControl.STEPControl_AsIs)
if status:
stepWriter.Write(filename)
def __init__(self,
filename,
verbose=False,
schema="AP214CD",
tolerance=1e-4):
logger.info("StepExporter instantiated with filename : %s" % filename)
logger.info("StepExporter schema : %s" % schema)
logger.info("StepExporter tolerance : %s" % str(tolerance))
if schema not in ["AP203", "AP214CD"]:
msg = "Unsupported STEP schema"
logger.error(msg)
raise AssertionError(msg)
check_exporter_filename(filename, step_extensions)
check_overwrite(filename)
self._filename = filename
self._shapes = list()
self.verbose = verbose
self._stepcontrol_writer = STEPControl.STEPControl_Writer()
self._stepcontrol_writer.SetTolerance(tolerance)
Interface.Interface_Static_SetCVal("write.step.schema", schema)
def readStepShape(fileName):
logging.info("Reading STEP file:'" + fileName + "'...")
stepReader = STEPControl.STEPControl_Reader()
stepReader.ReadFile(fileName)
numItems = stepReader.NbRootsForTransfer()
numTranslated = stepReader.TransferRoots()
logging.info("Read " + str(numTranslated) + " from File.")
shape = stepReader.OneShape()
logging.info("Done.")
return shape
def readStepShape(fileName):
log.info("Reading STEP file:'" + fileName + "'...")
stepReader = STEPControl.STEPControl_Reader()
if not os.path.exists(fileName):
raise ValueError, "Error: '%s' Does not Exist!" % fileName
stepReader.ReadFile(fileName)
numItems = stepReader.NbRootsForTransfer()
numTranslated = stepReader.TransferRoots()
log.info("Read " + str(numTranslated) + " from File.")
shape = stepReader.OneShape()
print "Step file is of type %d" % shape.ShapeType()
log.info("Done.")
return shape
def read_file(self):
"""
Read the STEP file and stores the result in a _shapes list
"""
stepcontrol_reader = STEPControl.STEPControl_Reader()
status = stepcontrol_reader.ReadFile(self._filename)
if status == IFSelect.IFSelect_RetDone:
stepcontrol_reader.PrintCheckLoad(False,
IFSelect.IFSelect_ItemsByEntity)
nb_roots = stepcontrol_reader.NbRootsForTransfer()
logger.info("%i root(s)" % nb_roots)
if nb_roots == 0:
msg = "No root for transfer"
logger.error(msg)
raise ValueError(msg)
stepcontrol_reader.PrintCheckTransfer(
False, IFSelect.IFSelect_ItemsByEntity)
self._number_of_shapes = stepcontrol_reader.NbShapes()
for n in range(1, nb_roots + 1):
logger.info("Root index %i" % n)
ok = stepcontrol_reader.TransferRoot(n)
logger.info("TransferRoots status : %i" % ok)
if ok:
# for i in range(1, self.nb_shapes + 1):
a_shape = stepcontrol_reader.Shape(n)
if a_shape.IsNull():
msg = "At least one shape in IGES cannot be transferred"
logger.warning(msg)
else:
self._shapes.append(a_shape)
logger.info("Appending a %s to list of shapes" %
types_lut.topo_lut[a_shape.ShapeType()])
else:
msg = "One shape could not be transferred"
logger.warning(msg)
warnings.warn(msg)
return True
else:
msg = "Status is not IFSelect.IFSelect_RetDone"
logger.error(msg)
raise ValueError(msg)
def toSTEP(self, filename, verbose=False, tolerance=0.001):
'''
Writes STEP output of the solid
:param filename: Path of the file to write STEP to
:type filename: str
:param verbose: Choose if you want to see the STEP stats
:type verbose: bool
:param tolerance: Provides control over quality of exported STEP.
:type tolernace: float
'''
with self._Verboseness(verbose):
stepWriter = STEPControl.STEPControl_Writer()
stepWriter.SetTolerance(tolerance)
if self.shape:
status = stepWriter.Transfer(self.shape,
STEPControl.STEPControl_AsIs)
if status:
stepWriter.Write(filename)
def fromSTEP(self, filename, verbose=False):
'''
Imports a STEP file to a solid
:param filename: Path of the file to write STEP to
:type filename: str
:param verbose: Choose if you want to see the STEP stats
:type verbose: bool
'''
with self._Verboseness(verbose):
if filename:
stepReader = STEPControl.STEPControl_Reader()
status = stepReader.ReadFile(filename)
if status:
nbr = stepReader.NbRootsForTransfer()
for n in range(1, nbr + 1):
stepReader.TransferRoot(n)
nbs = stepReader.NbShapes()
if nbs == 1:
if stepReader.Shape(1):
self.shape = stepReader.Shape(1)
return self
def pairs(itr):
a,b = tee(itr)
b.next()
return izip(a,b)
points = [(0,0,0),
(1,1,1),
(0,0,-2),
(0,2,0)]
vertices = [BRepBuilderAPI.BRepBuilderAPI_MakeVertex(gp.gp_Pnt(*p))
for p in points]
#print "verts", vertices
#edges = [BRepBuilderAPI.BRepBuilderAPI_MakeEdge(v1.Vertex(),v2.Vertex())
# for v1,v2 in pairs(vertices)]
v=vertices
edges = [BRepBuilderAPI.BRepBuilderAPI_MakeEdge(v[i].Vertex(),v[j].Vertex())
for i,j, in [(0,1),(0,2),(0,3)] ]
#print "edges", edges
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
for e in edges:
wire.Add(e.Edge())
print wire
step_export = STEPControl.STEPControl_Writer()
step_export.Transfer(wire.Shape(), STEPControl.STEPControl_AsIs)
step_export.Write("/home/bryan/test_wire.stp")
#!/usr/bin/python
# coding: utf-8
r"""
"""
from viewer import view
from OCC import BRepPrimAPI, STEPControl
def get_shape():
box = BRepPrimAPI.BRepPrimAPI_MakeBox(10, 20, 30)
shape = box.Shape()
return shape
shape = get_shape()
view(shape)
writer = STEPControl.STEPControl_Writer()
writer.Transfer(shape, STEPControl.STEPControl_AsIs)
writer.Write("test.step")
def export_shapes(shapeList, filename):
print(shapeList)
step_export = STEPControl.STEPControl_Writer()
for shape in shapeList:
step_export.Transfer(shape,STEPControl.STEPControl_AsIs)
step_export.Write(str(filename))
def _readSTEP(self, inputFileName):
stepReader = STEPControl.STEPControl_Reader()
stepReader.ReadFile(inputFileName)
numItems = stepReader.NbRootsForTransfer()
numTranslated = stepReader.TransferRoots()
return stepReader.OneShape()
