Add API documentation for the material module

2026-08-12 02:23:34 +00:00 · 2022-12-07 17:30:08 +11:00
parent 7da3d9ee70
commit cf87852d9c
23 changed files with 1129 additions and 90 deletions
@@ -20,11 +20,73 @@ import ifcopenshell.util.representation


 class Usecase:
-    def __init__(self, file, **settings):
+    def __init__(self, file, material_profile=None, profile=None):
+        """Changes the profile curve of a material profile item in a profile set
+
+        In addition to changing the profile curve, it will also change the
+        profile curve used in any body representation extrusions.
+
+        :param material_profile: The IfcMaterialProfile to change the profile
+            curve of. See ifcopenshell.api.material.add_profile to see how to
+            create profiles.
+        :type material_profile: ifcopenshell.entity_instance.entity_instance
+        :param profile: The IfcProfileDef to set the profile item's curve to.
+        :type profile: ifcopenshell.entity_instance.entity_instance
+        :return: None
+        :rtype: None
+
+        Example::
+
+            # Let's imagine we have a steel I-beam. Notice we are assigning to
+            # the type only, as all occurrences of that type will automatically
+            # inherit the material.
+            beam_type = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcBeamType", name="B1")
+
+            # First, let's create a material set. This will later be assigned
+            # to our beam type element.
+            material_set = ifcopenshell.api.run("material.add_profile_set", model,
+                name="B1", set_type="IfcMaterialProfileSet")
+
+            # Create a steel material.
+            steel = ifcopenshell.api.run("material.add_material", model, name="ST01", category="steel")
+
+            # Create an I-beam profile curve. Notice how we name our profiles
+            # based on standardised steel profile names.
+            hea100 = self.file.create_entity(
+                "IfcIShapeProfileDef", ProfileName="HEA100", ProfileType="AREA",
+                OverallWidth=100, OverallDepth=96, WebThickness=5, FlangeThickness=8, FilletRadius=12,
+            )
+
+            # Define that steel material and cross section as a single profile
+            # item. If this were a composite beam, we might add multiple profile
+            # items instead, but this is rarely the case in most construction.
+            profile_item = ifcopenshell.api.run("material.add_profile", model,
+                profile_set=material_set, material=steel, profile=hea100)
+
+            # Great! Let's assign our material set to our beam type.
+            ifcopenshell.api.run("material.assign_material", model, product=beam_type, material=material_set)
+
+            # Let's create an occurrence of this beam.
+            beam = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcBeam", name="B1.01")
+            ifcopenshell.api.run("material.assign_material", model,
+                product=beam, type="IfcMaterialProfileSetUsage")
+
+            # Let's give a 1000mm long beam body representation.
+            body = ifcopenshell.api.run("geoemtry.add_profile_representation",
+                context=body_context, profile=hea100, depth=1000)
+            ifcopenshell.api.run("geometry.assign_representation", model, product=beam, representation=body)
+
+            # Now let's change the profile to a HEA200 standard profile instead.
+            # This will automatically change the body representation that we
+            # just added as well to a HEA200 profile.
+            hea200 = self.file.create_entity(
+                "IfcIShapeProfileDef", ProfileName="HEA200", ProfileType="AREA",
+                OverallWidth=200, OverallDepth=190, WebThickness=6.5, FlangeThickness=10, FilletRadius=18,
+            )
+            ifcopenshell.api.run("material.assign_profile", model, material_profile=profile_item, profile=hea200)
+        """
        self.file = file
-        self.settings = {"material_profile": None, "profile": None}
-        for key, value in settings.items():
-            self.settings[key] = value
+        self.settings = {"material_profile": material_profile, "profile": profile}

    def execute(self):
        # TODO: handle composite profiles