def get_brep():
from OCC.BRep import BRep_Builder
from OCC.BRepTools import breptools_Read
from OCC.TopoDS import TopoDS_Shape
cylinder_head = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(cylinder_head, './models/cylinder_head.brep', builder)
return cylinder_head
def get_tess(brep_filename,js_filename): from OCC.BRepTools import breptools_Read from OCC.TopoDS import TopoDS_Shape from OCC.BRep import BRep_Builder from OCC.Visualization import Tesselator shape = TopoDS_Shape() builder = BRep_Builder() breptools_Read(shape, brep_filename, builder) tess = Tesselator(shape) tess.ExportShapeToJSON(js_filename)
def read_brep(brep_filepath):
"""
This function writes a 3D model into brep format.
Parameters
----------
brep_filepath : str
The file path of the brep file.
Returns
-------
occtopology : OCCtopology
Geometries read from the brep.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
"""
from OCC.BRepTools import breptools_Read
from OCC.TopoDS import TopoDS_Shape
from OCC.BRep import BRep_Builder
shape = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(shape, brep_filepath, builder)
return shape
def read_brep(brep_filepath):
"""
This function writes a 3D model into brep format.
Parameters
----------
brep_filepath : str
The file path of the brep file.
Returns
-------
occtopology : OCCtopology
Geometries read from the brep.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
"""
from OCC.BRepTools import breptools_Read
from OCC.TopoDS import TopoDS_Shape
from OCC.BRep import BRep_Builder
shape = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(shape, brep_filepath, builder)
return shape
def read_brep(filename):
"""
Reads in a brep file
:return: The shape
"""
if not Path(filename).is_file():
print("File not found: " + filename)
raise FileNotFoundError(filename)
b = BRep_Builder()
shape = TopoDS_Shape()
if not breptools_Read(shape, filename, b):
raise RuntimeError("Cannot read brep file: " + filename)
return shape
def draw_lineandvertices(event=None):
Line_1 = TopoDS_Shape()
Vertex_1 = TopoDS_Shape()
Vertex_2 = TopoDS_Shape()
builder = BRep_Builder()
builder1 = BRep_Builder()
compound = TopoDS_Compound()
builder1.MakeCompound(compound)
breptools_Read(Line_1, 'Line_1.brep', builder)
breptools_Read(Vertex_1, 'Vertex_1.brep', builder)
breptools_Read(Vertex_2, 'Vertex_2.brep', builder)
builder1.Add(compound,Line_1)
builder1.Add(compound,Vertex_1)
builder1.Add(compound,Vertex_2)
#display.DisplayShape({Line_1, Vertex_1, Vertex_2}, update=True)
#display.DisplayShape(Group_1, update=True)
display.DisplayShape(compound, update=True)
breptools_Write(compound, 'compound.brep')
display.FitAll()
##Copyright 2010-2014 Thomas Paviot ([email protected]) ## ##This file is part of pythonOCC. ## ##pythonOCC is free software: you can redistribute it and/or modify ##it under the terms of the GNU Lesser General Public License as published by ##the Free Software Foundation, either version 3 of the License, or ##(at your option) any later version. ## ##pythonOCC is distributed in the hope that it will be useful, ##but WITHOUT ANY WARRANTY; without even the implied warranty of ##MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ##GNU Lesser General Public License for more details. ## ##You should have received a copy of the GNU Lesser General Public License ##along with pythonOCC. If not, see <http://www.gnu.org/licenses/>. from OCC.Display.SimpleGui import init_display from OCC.BRepTools import breptools_Read from OCC.TopoDS import TopoDS_Shape from OCC.BRep import BRep_Builder cylinder_head = TopoDS_Shape() builder = BRep_Builder() breptools_Read(cylinder_head, '../assets/models/cylinder_head.brep', builder) display, start_display, add_menu, add_function_to_menu = init_display() display.DisplayShape(cylinder_head, update=True) start_display()
def __import__brep__(fname):
s = TopoDS_Shape()
if breptools_Read(s, fname, BRep_Builder()):
return s
else:
raise IOError("Can't import file "+fname)
def load_brep(BRepFile):
BRepShape = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(BRepShape, BRepFile, builder)
return BRepShape
def load_brep(self, path):
""" Load a brep model """
shape = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(shape, path, builder)
return shape
## ##This file is part of pythonOCC. ## ##pythonOCC is free software: you can redistribute it and/or modify ##it under the terms of the GNU Lesser General Public License as published by ##the Free Software Foundation, either version 3 of the License, or ##(at your option) any later version. ## ##pythonOCC is distributed in the hope that it will be useful, ##but WITHOUT ANY WARRANTY; without even the implied warranty of ##MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ##GNU Lesser General Public License for more details. ## ##You should have received a copy of the GNU Lesser General Public License ##along with pythonOCC. If not, see <http://www.gnu.org/licenses/>. from OCC.Display.WebGl import x3dom_renderer from OCC.BRep import BRep_Builder from OCC.TopoDS import TopoDS_Shape from OCC.BRepTools import breptools_Read # loads brep shape cylinder_head = TopoDS_Shape() builder = BRep_Builder() breptools_Read(cylinder_head, './models/cylinder_head.brep', builder) # render cylinder head in x3dom my_renderer = x3dom_renderer.X3DomRenderer() my_renderer.DisplayShape(cylinder_head) my_renderer.render()
def get_brep():
cylinder_head = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(cylinder_head, './models/cylinder_head.brep', builder)
return cylinder_head
##it under the terms of the GNU Lesser General Public License as published by ##the Free Software Foundation, either version 3 of the License, or ##(at your option) any later version. ## ##pythonOCC is distributed in the hope that it will be useful, ##but WITHOUT ANY WARRANTY; without even the implied warranty of ##MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ##GNU Lesser General Public License for more details. ## ##You should have received a copy of the GNU Lesser General Public License ##along with pythonOCC. If not, see <http://www.gnu.org/licenses/>. from OCC.Display.SimpleGui import init_display from OCC.BRepTools import breptools_Read from OCC.TopoDS import TopoDS_Shape from OCC.BRep import BRep_Builder Line_1 = TopoDS_Shape() Vertex_1 = TopoDS_Shape() Vertex_2 = TopoDS_Shape() builder = BRep_Builder() breptools_Read(Line_1, 'Line_1.brep', builder) breptools_Read(Vertex_1, 'Vertex_1.brep', builder) breptools_Read(Vertex_2, 'Vertex_2.brep', builder) display, start_display, add_menu, add_function_to_menu = init_display() display.DisplayShape(Line_1, update=True) display.DisplayShape(Vertex_1, update=True) display.DisplayShape(Vertex_2, update=True) start_display()
def get_brep():
cylinder_head = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(cylinder_head, './models/cylinder_head.brep', builder)
return cylinder_head
def loadBRep(filename):
builder = BRep_Builder()
shape = TopoDS_Shape()
breptools_Read(shape, filename, builder)
return shape
# Number of points
n = 100000
# List for storing TopoDS_Shape instances of vertices if required.
vertexList = []
# Set the side length
side_length = 10.0
# The side length of the box that contains the shapes that will be tested
xSideLength = ySideLength = zSideLength = 0.0
xMin = xMax = yMin = yMax = zMin = zMax = 0.0
# Read the file to get the shape to be sampled.
shape = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(shape, "cubeWithHole.brep", builder)
# Loop over the shape pulled from the input and look for solids.
solids = [] # A list for storing solids from the file
i = 0 # A counter for writing vertices/points
allPointsDataFrame = pd.DataFrame([]) # A dataframe for ALL points
# OpenCASCADE can only successfully execute point inclusion queries if the
# shape in question is a full solid, which is defined in their topology as
# TopAbs_SOLID. Each solid in the file can sampled individually by pulling
# it from the compound.
if shape.ShapeType() != TopAbs_SOLID:
# Create a topology explorer and pull all the solids from the shape
explorer = TopExp_Explorer(shape, TopAbs_SOLID)
# Loop over all the solids
while explorer.More():
solid = explorer.Current()
def get_tess(brep_filename,js_filename): shape = TopoDS_Shape() builder = BRep_Builder() breptools_Read(shape, str(brep_filename), builder) tess = Tesselator(shape) tess.ExportShapeToJSON(str(js_filename))
##You should have received a copy of the GNU Lesser General Public License
##along with pythonOCC. If not, see <http://www.gnu.org/licenses/>.
import sys
from OCC.Display.SimpleGui import init_display
from OCC.Graphic3d import Graphic3d_RenderingParams
from OCC.BRepTools import breptools_Read
from OCC.TopoDS import TopoDS_Shape
from OCC.BRep import BRep_Builder
display, start_display, add_menu, add_function_to_menu = init_display()
# loads the motor model
motor_c = TopoDS_Shape()
builder = BRep_Builder()
breptools_Read(motor_c, '../assets/models/Motor-c.brep', builder)
display.DisplayShape(motor_c, update=True)
def perspective(event=None):
display.SetPerspectiveProjection()
display.FitAll()
def orthographic(event=None):
display.SetOrthographicProjection()
display.FitAll()
def anaglyph_red_cyan(event=None):
display.SetAnaglyphMode(Graphic3d_RenderingParams.Anaglyph_RedCyan_Simple)
display.FitAll()
def anaglyph_red_cyan_optimized(event=None):
