First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 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/>.
+from typing import Optional
+
+import ifcopenshell
+
+
+def add_style(
+    file: ifcopenshell.file, name: Optional[str] = None, ifc_class="IfcSurfaceStyle"
+) -> ifcopenshell.entity_instance:
+    """Add a new presentation style
+
+    A presentation style is a container of visual settings (called
+    presentation items) that affect the appearance of objects. There are
+    four types of style:
+
+    - Surface styles, which give 3D objects (which have surfaces / faces)
+      their colours and textures. This is the most common type of style.
+    - Curve styles, which give 2D and 3D curves, lines, polylines, their
+      stroke thickness and colour.
+    - Fill area styles, which gives 2D polygons and flat 3D planes their
+      colours, hatch patterns, tiled patterns, and pattern scales.
+    - Text styles, which gives text their font family, weight, variant,
+      size, indentation, alignment, decoration, spacing, and transformation.
+
+    Once you have created a presentation style object, you can further
+    define the properties of your style using other API functions by adding
+    presentation items, such as ifcopenshell.api.style.add_surface_style.
+
+    :param name: The name of the style. Used to easily identify it using a
+        style library.
+    :param ifc_class: Choose from IfcSurfaceStyle, IfcCurveStyle,
+        IfcFillAreaStyle, or IfcTextStyle.
+    :return: The newly created style element, based on the provided
+        ifc_class.
+
+    Example:
+
+    .. code:: python
+
+        # Create a new surface style
+        style = ifcopenshell.api.style.add_style(model)
+    """
+
+    kwargs = {"Name": name}
+    if ifc_class == "IfcSurfaceStyle":
+        # Name is filled out because Revit treats this incorrectly as the material name
+        kwargs["Side"] = "BOTH"
+
+    return file.create_entity(ifc_class, **kwargs)