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https://github.com/IfcOpenShell/IfcOpenShell.git
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Library for US AISC15 Steel Profiles #3203
This commit is contained in:
Andrej730
@@ -24,6 +24,9 @@ import ifcopenshell.api
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import boltspy as bolts
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from math import cos, pi
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from pathlib import Path
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from mathutils import Vector
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V = lambda *x: Vector([float(i) for i in x])
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def create_simple_2dcurve(coords, fillets, fillet_radius, closed=True, ifc_file=None):
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"""
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@@ -135,9 +138,9 @@ def create_z_profile_lips_curve(ifc_file, FirstFlangeWidth, SecondFlangeWidth, D
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return ifc_curve
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class LibraryGenerator:
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def generate(self, parse_profiles_type="EU", output_filename="IFC4 EU Steel.ifc"):
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print(f'Generating {parse_profiles_type} steel library "{output_filename}"')
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ifcopenshell.api.pre_listeners = {}
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ifcopenshell.api.post_listeners = {}
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@@ -153,41 +156,64 @@ class LibraryGenerator:
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ifcopenshell.api.run(
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"project.assign_declaration", self.file, definition=self.library, relating_context=self.project
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)
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unit = ifcopenshell.api.run("unit.add_si_unit", self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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ifcopenshell.api.run("unit.assign_unit", self.file, units=[unit])
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dim_exponents = self.file.createIfcDimensionalExponents(0, 0, 0, 0, 0, 0, 0)
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length_unit = ifcopenshell.api.run("unit.add_si_unit", self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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# define angle unit to use degrees for IfcPlaneAngleMeasure:
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# https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlaneAngleMeasure.htm
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angle_unit = ifcopenshell.api.run("unit.add_si_unit", self.file, unit_type="PLANEANGLEUNIT")
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value_component = self.file.createIfcReal(pi/180)
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angle_unit = self.file.createIfcMeasureWithUnit(ValueComponent=value_component, UnitComponent=angle_unit)
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angle_unit = self.file.createIfcConversionBasedUnit(Name="degree", Dimensions=dim_exponents, UnitType="PLANEANGLEUNIT", ConversionFactor=angle_unit)
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ifcopenshell.api.run("unit.assign_unit", self.file, units=[length_unit, angle_unit])
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self.material = ifcopenshell.api.run("material.add_material", self.file, name="Unknown")
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# parameters could be optional (example: welded i-beams don't have FilletRadius)
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# NOTE: parameters could be optional (example: welded i-beams don't have FilletRadius)
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profiles_translation = {
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"profile_i": ("IfcIShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "OverallDepth", "b": "OverallWidth", "r": "FilletRadius"}),
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"profile_i": ("IfcIShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "OverallDepth", "b": "OverallWidth", "r": "FilletRadius", "sf": "FlangeSlope", "r1": "FilletRadius", "r2": "FlangeEdgeRadius"}),
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"profile_t": ("IfcTShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "Depth", "b": "FlangeWidth", "r": "FilletRadius", "r1": "FilletRadius", "r2": "FlangeEdgeRadius"}),
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"profile_z": ("IfcZShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "Depth", "c1": "FlangeWidth"}),
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"profile_c": ("IfcUShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "Depth", "b": "FlangeWidth", "r": "FilletRadius"}),
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"profile_z_lips": ("IfcArbitraryClosedProfileDef", {"t": "WallThickness", "c1": "FirstFlangeWidth", "c2": "SecondFlangeWidth", "h": "Depth", "r": "FilletRadius", "ll": "Girth"}),
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"profile_c": ("IfcUShapeProfileDef", {"tw": "WebThickness", "tf": "FlangeThickness", "h": "Depth", "b": "FlangeWidth", "r": "FilletRadius", "sf": "FlangeSlope", "r1": "FilletRadius", "r2": "EdgeRadius"}),
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"profile_c_lips": ("IfcCShapeProfileDef", {"t": "WallThickness", "b": "Width", "h": "Depth", "ll": "Girth", "r": "InternalFilletRadius"}),
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"profile_l*_equal": ("IfcLShapeProfileDef", {"a": "Depth", "t": "Thickness", "r1": "FilletRadius", "r2": "EdgeRadius"}),
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"profile_l*_unequal": ("IfcLShapeProfileDef", {"a": "Depth", "b": "Width", "t": "Thickness", "r1": "FilletRadius", "r2": "EdgeRadius"}),
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"profile_l*lbeam_l_imp": ("IfcLShapeProfileDef", {"a": "Depth", "b": "Width", "t": "Thickness", "r1": "FilletRadius", "r2": "EdgeRadius"}),
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"profile_l*lbeam_2l": ("IfcLShapeProfileDef", {"a": "Depth", "b": "Width", "t": "Thickness", "g": "ProfilesGap"}),
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"profile_hollow*_circle": ("IfcCircleHollowProfileDef", {"t": "WallThickness", "D": "Radius"}),
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"profile_hollow*pipe_imp": ("IfcCircleHollowProfileDef", {"t": "WallThickness", "D": "Radius"}),
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"profile_hollow*_square": ("IfcRectangleHollowProfileDef", {"t": "WallThickness", "b": "XDim", "ri": "InnerFilletRadius", "ro": "OuterFilletRadius"}),
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"profile_hollow*_rectangular": ("IfcRectangleHollowProfileDef", {"t": "WallThickness", "b": "XDim", "h": "YDim", "ri": "InnerFilletRadius", "ro": "OuterFilletRadius"}),
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"profile_c_lips": ("IfcCShapeProfileDef", {"t": "WallThickness", "b": "Width", "h": "Depth", "ll": "Girth", "r": "InternalFilletRadius"}),
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"profile_z_lips": ("IfcArbitraryClosedProfileDef", {"t": "WallThickness", "c1": "FirstFlangeWidth", "c2": "SecondFlangeWidth", "h": "Depth", "r": "FilletRadius", "ll": "Girth"}),
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}
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US_profiles = ("ibeam_w_imp", )
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if parse_profiles_type == "AU":
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bolt_class_filter = lambda x: "bluescope" in x.id
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elif parse_profiles_type == "EU":
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bolt_class_filter = lambda x: "bluescope" not in x.id and x.id not in US_profiles
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elif parse_profiles_type == "US":
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bolt_class_filter = lambda x: x.id in US_profiles
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else:
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bolt_class_filter = lambda x: True
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processed_profiles = set()
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def bolt_class_filter(x):
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identified_type = ""
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if "bluescope" in x.id:
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identified_type = "AU"
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elif x.id.endswith("_imp"):
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identified_type = "US"
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else:
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identified_type = "EU"
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return parse_profiles_type == identified_type
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for prof_type in profiles_translation:
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ifc_profile_name, ifc_params_translation = profiles_translation[prof_type]
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# prof_keyword == "" if there is no "*"
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col_name, _, prof_keyword = prof_type.partition("*")
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bolt_col = bolts.repo.collections[col_name]
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for bolt_class in bolts.repo.collection_classes.get_dsts(bolt_col):
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if bolt_class.id in processed_profiles:
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continue
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if not bolt_class_filter(bolt_class):
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continue
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@@ -199,6 +225,8 @@ class LibraryGenerator:
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# like hollow_generic_square
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continue
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print(f'Processing {bolt_class.id}')
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bolts_cols_original = bolt_class.parameters.tables[0].columns
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bolts_cols = [ifc_params_translation.get(c, "unused") for c in bolts_cols_original]
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@@ -207,7 +235,8 @@ class LibraryGenerator:
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data = data.copy()
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for i in range(len(units)):
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unit = units[i]
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assert unit in ("Length (in)", "Length (mm)")
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assert unit in ("Length (in)", "Length (mm)", "Angle (deg)"), f"Unit {unit} is not supported"
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if unit != "Length (in)":
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continue
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for profile in data:
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@@ -225,23 +254,34 @@ class LibraryGenerator:
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if prof_type == "profile_hollow*_square":
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ifc_params["YDim"] = ifc_params["XDim"]
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elif prof_type == "profile_hollow*_circle":
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elif ifc_profile_name == "IfcCircleHollowProfileDef":
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# by default bolts provides diameter, so we need to convert it to radius
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ifc_params["Radius"] /= 2
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elif prof_type == "profile_z_lips":
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ifc_curve = create_z_profile_lips_curve(self.file, **ifc_params)
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ifc_params = {"OuterCurve": ifc_curve}
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elif prof_type == "profile_l*lbeam_2l":
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profiles_gap = ifc_params["ProfilesGap"]
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del ifc_params["ProfilesGap"]
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# profile is setup by type of profile and by supplying it's parameters
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# ProfileType stays AREA
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profile = self.file.create_entity(ifc_profile_name, ProfileName=prof_name, ProfileType="AREA", **ifc_params)
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if prof_type == "profile_l*lbeam_2l":
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profile.ProfileName = None # to avoid name confusion
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mode = "SLBB" if prof_name.endswith("_SLBB") else "LLBB"
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profile = self.create_double_l_profile(profile, prof_name, profiles_gap, mode)
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# building profiles for each of 3 types
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self.create_profile_type("IfcBeamType", prof_name, profile)
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self.create_profile_type("IfcMemberType", prof_name, profile)
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self.create_profile_type("IfcColumnType", prof_name, profile)
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processed_profiles.add(bolt_class.id)
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self.file.write(output_filename)
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print('-----------------------')
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def create_profile_type(self, ifc_class, name, profile):
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element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class=ifc_class, name=name)
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@@ -254,6 +294,49 @@ class LibraryGenerator:
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ifcopenshell.api.run("material.assign_profile", self.file, material_profile=material_profile, profile=profile)
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ifcopenshell.api.run("project.assign_declaration", self.file, definition=element, relating_context=self.library)
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def create_double_l_profile(self, profile, resulting_profile_name=None, profiles_gap=0, mode = "LLBB"):
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def create_derived_profile(profile, mirrored=False):
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"""
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LLBB mode = long legs back-to-back
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SLBB mode = short legs back-to-back
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"""
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derived_profile = self.file.createIfcDerivedProfileDef(
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ParentProfile=profile,
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Operator=self.file.createIfcCartesianTransformationOperator2D(),
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ProfileType=profile.ProfileType
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)
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transform = derived_profile.Operator
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transform.LocalOrigin = self.file.createIfcCartesianPoint()
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if mode == "LLBB":
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offset = profile.Depth/2 + profiles_gap
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if mirrored:
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transform.Axis1 = self.file.createIfcDirection(V(0, 1))
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transform.Axis2 = self.file.createIfcDirection(V(-1, 0))
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transform.LocalOrigin.Coordinates = V(-offset, 0)
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else:
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transform.LocalOrigin.Coordinates = V(offset, 0)
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transform.Axis1 = self.file.createIfcDirection(V(0, 1))
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transform.Axis2 = self.file.createIfcDirection(V(1, 0))
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elif mode == "SLBB":
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offset = profile.Width/2 + profiles_gap
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if mirrored:
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transform.Axis1 = self.file.createIfcDirection(V(-1, 0))
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transform.LocalOrigin.Coordinates = V(-offset, 0)
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else:
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transform.LocalOrigin.Coordinates = V(offset, 0)
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return derived_profile
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composite_profile = self.file.createIfcCompositeProfileDef(Profiles=[
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create_derived_profile(profile),
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create_derived_profile(profile, mirrored=True)
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],
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ProfileType = profile.ProfileType
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)
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composite_profile.ProfileName = resulting_profile_name
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return composite_profile
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if __name__ == "__main__":
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path = Path(__file__).parents[1] / "blenderbim/bim/data/libraries"
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