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ClippingInfo util class to pass and apply plane clippings #3774

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Co-Authored-By: Carlos Villagrasa <carvillasil@gmail.com>
This commit is contained in:
Andrej730
2023-11-17 16:52:59 +05:00
parent 6750dd927c
commit dc438b2560
4 changed files with 77 additions and 60 deletions
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src/ifcopenshell-python/ifcopenshell/api/geometry/add_slab_representation.py
+8 -18
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@@ -27,7 +27,8 @@ class Usecase:
"context": None, # IfcGeometricRepresentationContext
"depth": 0.2,
"x_angle": 0, # Radians
# Planes are defined as a matrix. The XY plane is the clipping boundary and +Z is removed.
# Planes are defined either by ClippingInfo objects
# or by dictionaries of arguments for `ClippingInfo.parse`
"clippings": [], # A list of planes that define clipping half space solids
}
for key, value in settings.items():
@@ -78,23 +79,12 @@ class Usecase:
def apply_clippings(self, first_operand):
while self.settings["clippings"]:
clipping = self.settings["clippings"].pop()
second_operand = self.file.createIfcHalfSpaceSolid(
self.file.createIfcPlane(
self.file.createIfcAxis2Placement3D(
self.file.createIfcCartesianPoint(
(
self.convert_si_to_unit(clipping[0][3]),
self.convert_si_to_unit(clipping[1][3]),
self.convert_si_to_unit(clipping[2][3]),
)
),
self.file.createIfcDirection((clipping[0][2], clipping[1][2], clipping[2][2])),
self.file.createIfcDirection((clipping[0][0], clipping[1][0], clipping[2][0])),
)
),
False,
)
first_operand = self.file.createIfcBooleanClippingResult("DIFFERENCE", first_operand, second_operand)
if isinstance(clipping, ifcopenshell.entity_instance):
new = ifcopenshell.util.element.copy(self.file, clipping)
new.FirstOperand = first_operand
first_operand = new
else: # ClippingInfo
first_operand = clipping.apply(self.file, first_operand, self.settings["unit_scale"])
return first_operand
def convert_si_to_unit(self, co):