from OCCT.BOPAlgo import BOPAlgo_Options
from OCCT.BRepAlgoAPI import BRepAlgoAPI_Fuse
from OCCT.TopTools import TopTools_ListOfShape
from OCCT.Exchange import ExchangeBasic
from OCCT.Visualization import BasicViewer
fn = './models/wing_assy.brep'
wing_assy = ExchangeBasic.read_brep(fn)
fn = './models/fuse_assy.brep'
fuse_assy = ExchangeBasic.read_brep(fn)
BOPAlgo_Options.SetParallelMode_(True)
bop = BRepAlgoAPI_Fuse()
args = TopTools_ListOfShape()
args.Append(wing_assy)
bop.SetArguments(args)
tools = TopTools_ListOfShape()
tools.Append(fuse_assy)
bop.SetTools(tools)
print('Starting fuse...')
start = time.time()
bop.Build()
print('Complete in ', time.time() - start, ' seconds.')
v = BasicViewer()
v.add(bop.Shape())
v.start()
# fn = './models/wingbox.brep'
# fn = './models/fuselage_structure.brep'
fn = './models/wing_body.brep'
shape = ExchangeBasic.read_brep(fn)
gen = SMESH_Gen()
mesh = gen.CreateMesh(0, True)
assert isinstance(mesh, SMESH_Mesh)
mesh.ShapeToMesh(shape)
mg_hyp = BLSURFPlugin_Hypothesis(0, 0, gen, True)
mg_alg = BLSURFPlugin_BLSURF(1, 0, gen, True)
mg_hyp.SetPhySize(4)
mg_hyp.SetQuadAllowed(True)
mesh.AddHypothesis(mesh.GetShapeToMesh(), 0)
mesh.AddHypothesis(mesh.GetShapeToMesh(), 1)
print('Computing mesh...')
start = time.time()
done = gen.Compute(mesh, mesh.GetShapeToMesh())
print('done in ', time.time() - start, ' seconds.')
v = BasicViewer()
v.add(mesh)
v.start()
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import time
from OCCT.BOPAlgo import BOPAlgo_Options
from OCCT.BRepAlgoAPI import BRepAlgoAPI_Common
from OCCT.Exchange import ExchangeBasic
from OCCT.Visualization import BasicViewer
cheese = ExchangeBasic.read_step('./models/cheese.stp')
planes = ExchangeBasic.read_step('./models/planes.stp')
v = BasicViewer()
v.add(cheese, planes)
v.start()
v.clear()
# Basic operation takes about 32 seconds
print('Starting Boolean operation...')
start = time.time()
BRepAlgoAPI_Common(cheese, planes)
print('Complete in ', time.time() - start, ' seconds.')
# Run in parallel. Should take 10 to 11 seconds on 4 cores
BOPAlgo_Options.SetParallelMode_(True)
print('Starting Boolean operation...')
start = time.time()
bop = BRepAlgoAPI_Common(cheese, planes)
print('Complete in ', time.time() - start, ' seconds.')
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from OCCT.STEPControl import STEPControl_Reader
from OCCT.TopAbs import TopAbs_FACE
from OCCT.TopExp import TopExp_Explorer
from OCCT.Visualization import BasicViewer
# Read the file and get the shape
reader = STEPControl_Reader()
tr = reader.WS().TransferReader()
reader.ReadFile('./models/shape_names.step')
reader.TransferRoots()
shape = reader.OneShape()
gui = BasicViewer()
# Explore the faces of the shape (these are known to be named)
exp = TopExp_Explorer(shape, TopAbs_FACE)
while exp.More():
rgb = None
s = exp.Current()
exp.Next()
item = tr.EntityFromShapeResult(s, 1)
name = item.Name().ToCString()
if name:
print('Found entity: {}'.format(name))
rgb = (1, 0, 0)
gui.add(s, rgb)
gui.start()