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freecad_display_boundaries.py
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Created
Tue, Oct 8, 19:41
Size
2 KB
Mime Type
text/x-python
Expires
Thu, Oct 10, 19:41 (2 d)
Engine
blob
Format
Raw Data
Handle
21487112
Attached To
R8831 BIMxBEM
freecad_display_boundaries.py
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# coding: utf8
import
ifcopenshell
import
ifcopenshell.geom
import
OCC.BRep
import
OCC.BRepTools
import
OCC.TopoDS
import
ptvsd
import
FreeCAD
import
Part
def
display_boundaries
(
ifc_path
):
ifc_file
=
ifcopenshell
.
open
(
ifc_path
)
settings
=
ifcopenshell
.
geom
.
settings
()
settings
.
set
(
settings
.
USE_WORLD_COORDS
,
True
)
settings
.
set
(
settings
.
INCLUDE_CURVES
,
True
)
brep
=
False
if
brep
:
settings
.
set
(
settings
.
USE_PYTHON_OPENCASCADE
,
True
)
settings
.
set
(
settings
.
USE_BREP_DATA
,
True
)
else
:
settings
.
set
(
settings
.
USE_PYTHON_OPENCASCADE
,
False
)
space_boundaries
=
ifc_file
.
by_type
(
"IfcRelSpaceBoundary"
)
doc
=
FreeCAD
.
ActiveDocument
for
space_boundary
in
(
b
for
b
in
space_boundaries
if
b
.
Name
==
"2ndLevel"
):
outer_boundary
=
(
space_boundary
.
ConnectionGeometry
.
SurfaceOnRelatingElement
.
OuterBoundary
)
ifc_shape
=
ifcopenshell
.
geom
.
create_shape
(
settings
,
outer_boundary
)
face
=
doc
.
addObject
(
"Part::Feature"
,
"Face"
)
if
brep
:
face
.
Shape
=
Part
.
Face
(
geom_by_brep
(
ifc_shape
))
else
:
face
.
Shape
=
Part
.
Face
(
geom_by_mesh
(
ifc_shape
))
face
.
Placement
=
get_placement
(
space_boundary
)
face
.
ViewObject
.
ShapeColor
=
get_color
(
space_boundary
.
RelatedBuildingElement
)
doc
.
recompute
()
def
geom_by_brep
(
ifc_shape
):
tmp_file
=
"/tmp/shape.brep"
OCC
.
BRepTools
.
breptools_Write
(
ifc_shape
,
tmp_file
)
return
Part
.
read
(
tmp_file
)
.
Wires
def
geom_by_mesh
(
ifc_shape
):
"""Retrieve boundaries surface wire"""
ifc_verts
=
ifc_shape
.
verts
occ_verts
=
[
FreeCAD
.
Vector
(
ifc_verts
[
i
:
i
+
3
])
for
i
in
range
(
0
,
len
(
ifc_verts
),
3
)]
return
Part
.
makePolygon
(
occ_verts
)
def
get_placement
(
boundary
):
"""Retrieve the plane boundary placement"""
position
=
(
boundary
.
ConnectionGeometry
.
SurfaceOnRelatingElement
.
BasisSurface
.
Position
)
base
=
FreeCAD
.
Vector
(
position
.
Location
.
Coordinates
)
rotation
=
FreeCAD
.
Rotation
(
FreeCAD
.
Vector
(
1
,
0
,
0
),
FreeCAD
.
Vector
(
position
.
RefDirection
.
DirectionRatios
)
)
return
FreeCAD
.
Placement
(
base
,
rotation
)
def
get_color
(
ifc_product
):
product_colors
=
{
"IfcWall"
:
(
0.7
,
0.3
,
0.0
),
"IfcWindow"
:
(
0.0
,
0.7
,
1.0
),
"IfcSlab"
:
(
0.7
,
0.7
,
0.5
),
"IfcRoof"
:
(
0.0
,
0.3
,
0.0
),
}
for
product
,
color
in
product_colors
.
items
():
if
ifc_product
.
is_a
(
product
):
return
color
if
__name__
==
"__main__"
:
# Allow other computers to attach to ptvsd at this IP address and port.
ptvsd
.
enable_attach
(
address
=
(
"localhost"
,
5678
),
redirect_output
=
True
)
# Pause the program until a remote debugger is attached
ptvsd
.
wait_for_attach
()
# breakpoint()
display_boundaries
(
ifc_path
=
"/home/cyril/git/BIMxBEM/IfcPython/9000_BIMxBEM_TestModèle_R19.ifc"
)
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