New geometry.create_2pt_wall API function to create a wall-like representation from two points.

2026-08-09 17:31:45 +00:00 · 2023-07-18 18:29:26 +10:00
parent f3c4858d2f
commit e0fffbfdfe
1 changed files with 73 additions and 0 deletions
@@ -0,0 +1,73 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell 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.
+#
+# IfcOpenShell 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 IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import numpy as np
+import ifcopenshell.api
+import ifcopenshell.util.unit
+
+
+class Usecase:
+    def __init__(self, file, element=None, context=None, p1=None, p2=None, elevation=None, height=None, thickness=None):
+        self.file = file
+        self.settings = {
+            "element": element,
+            "context": context,
+            "p1": p1,
+            "p2": p2,
+            "elevation": elevation,
+            "height": height,
+            "thickness": thickness,
+        }
+
+    def execute(self):
+        self.settings["unit_scale"] = ifcopenshell.util.unit.calculate_unit_scale(self.file)
+
+        self.settings["p1"] = np.array(self.settings["p1"])
+        self.settings["p2"] = np.array(self.settings["p2"])
+
+        length = float(np.linalg.norm(self.settings["p2"] - self.settings["p1"]))
+        representation = ifcopenshell.api.run(
+            "geometry.add_wall_representation",
+            self.file,
+            context=self.settings["context"],
+            length=length,
+            height=self.settings["height"],
+            thickness=self.settings["thickness"],
+        )
+        v = self.settings["p2"] - self.settings["p1"]
+        v /= float(np.linalg.norm(v))
+        matrix = np.array(
+            [
+                [v[0], -v[1], 0, self.settings["p1"][0]],
+                [v[1], v[0], 0, self.settings["p1"][1]],
+                [0, 0, 1, self.convert_si_to_unit(self.settings["elevation"])],
+                [0, 0, 0, 1],
+            ]
+        )
+        ifcopenshell.api.run(
+            "geometry.edit_object_placement", self.file, product=self.settings["element"], matrix=matrix
+        )
+        ifcopenshell.api.run(
+            "geometry.assign_representation", self.file, product=self.settings["element"], representation=representation
+        )
+        return representation
+
+    def convert_si_to_unit(self, co):
+        if isinstance(co, (tuple, list)):
+            return [self.convert_si_to_unit(o) for o in co]
+        return co / self.settings["unit_scale"]