added boolean subtraction feature

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+* (Re)added `BooleanSubtraction` feature.
+
 ### Changed
 
 * `BeamFromCurve` GH component accepts now referenced Rhino curves, referenced Rhino object IDs and internalized lines.

src/compas_timber/consumers/geometry.py

@@ -6,6 +6,7 @@
 from compas_timber.parts import CutFeature
 from compas_timber.parts import DrillFeature
 from compas_timber.parts import MillVolume
+from compas_timber.parts import BrepSubtraction
 
 
 class FeatureApplicationError(Exception):
@@ -173,6 +174,47 @@ def apply(self):
             )
 
 
+class BrepSubtractionGeometry(FeatureApplicator):
+    """Applies BrepSubtraction to beam geometry.
+
+    Parameters
+    ----------
+    beam_geometry : :class:`compas.geometry.Brep`
+        The geometry of the beam.
+    feature : :class:`compas_timber.parts.BrepSubtraction`
+        The feature to apply.
+
+    """
+
+    def __init__(self, beam_geometry, feature):
+        super(BrepSubtractionGeometry, self).__init__()
+        self.volume = feature.volume
+        self.beam_geometry = beam_geometry
+
+    def apply(self):
+        """Apply the feature to the beam geometry.
+
+        Raises
+        ------
+        :class:`compas_timber.consumers.FeatureApplicationError`
+            If the volume does not intersect with the beam geometry.
+
+        Returns
+        -------
+        :class:`compas.geometry.Brep`
+            The resulting geometry after processing.
+
+        """
+        try:
+            return self.beam_geometry - self.volume
+        except IndexError:
+            raise FeatureApplicationError(
+                self.volume,
+                self.beam_geometry,
+                "The volume does not intersect with beam geometry.",
+            )
+
+
 class BeamGeometry(object):
     """A data class containing the result of applying features to a beam.
 
@@ -210,7 +252,12 @@ class BrepGeometryConsumer(object):
 
     """
 
-    FEATURE_MAP = {CutFeature: CutFeatureGeometry, DrillFeature: DrillFeatureGeometry, MillVolume: MillVolumeGeometry}
+    FEATURE_MAP = {
+        CutFeature: CutFeatureGeometry,
+        DrillFeature: DrillFeatureGeometry,
+        MillVolume: MillVolumeGeometry,
+        BrepSubtraction: BrepSubtractionGeometry,
+    }
 
     def __init__(self, assembly):
         self.assembly = assembly

src/compas_timber/ghpython/components/CT_FeatureBrepSubtraction/code.py

@@ -3,26 +3,20 @@
 from Grasshopper.Kernel.GH_RuntimeMessageLevel import Warning
 
 from compas_timber.ghpython import FeatureDefinition
-from compas_timber.parts import BeamBooleanSubtraction
+from compas_timber.parts import BrepSubtraction
 
 
 class BrepSubtractionFeature(component):
-    def RunScript(self, Beam, Geometry):
-        if not Beam:
+    def RunScript(self, beam, geometry):
+        if not beam:
             self.AddRuntimeMessage(Warning, "Input parameter Beams failed to collect data")
-        if not Geometry:
+        if not geometry:
             self.AddRuntimeMessage(Warning, "Input parameter Geometry failed to collect data")
-        if not (Beam and Geometry):
+        if not (beam and geometry):
             return
 
-        if not isinstance(Beam, list):
-            Beam = [Beam]
-        if not isinstance(Geometry, list):
-            Geometry = [Geometry]
+        if not isinstance(beam, list):
+            beam = [beam]
 
-        Feature = []
-        for brep in Geometry:
-            feature = BeamBooleanSubtraction(Brep.from_native(brep))
-            Feature.append(FeatureDefinition(feature, Beam))
-
-        return Feature
+        feature = BrepSubtraction(Brep.from_native(geometry))
+        return FeatureDefinition(feature, beam)

src/compas_timber/ghpython/components/CT_FeatureBrepSubtraction/metadata.json

@@ -19,7 +19,7 @@
                 "name": "Geometry",
                 "description": "Brep Geometry to subtract form Beam(s) (one or more).",
                 "typeHintID": "brep",
-                "scriptParamAccess": 1
+                "scriptParamAccess": 0
             }
         ],
         "outputParameters": [

src/compas_timber/parts/__init__.py

@@ -2,10 +2,12 @@
 from .features import CutFeature
 from .features import DrillFeature
 from .features import MillVolume
+from .features import BrepSubtraction
 
 __all__ = [
     "Beam",
     "CutFeature",
     "DrillFeature",
     "MillVolume",
+    "BrepSubtraction",
 ]

src/compas_timber/parts/features.py

@@ -91,3 +91,24 @@ def __data__(self):
         data_dict = {"volume": self.volume}
         data_dict.update(super(MillVolume, self).__data__)
         return data_dict
+
+
+class BrepSubtraction(Feature):
+    """Generic volume subtraction from a beam.
+
+    Parameters
+    ----------
+    volume : :class:`compas.geometry.Brep`
+        The volume to be subtracted from the beam.
+
+    """
+
+    def __init__(self, volume, **kwargs):
+        super(BrepSubtraction, self).__init__(**kwargs)
+        self.volume = volume
+
+    @property
+    def __data__(self):
+        data_dict = {"volume": self.volume}
+        data_dict.update(super(BrepSubtraction, self).__data__)
+        return data_dict