Allow you to specify whether to recut all, or just recut selected. See #901.

src/ifcblenderexport/blenderbim/bim/cut_ifc.py

@@ -128,6 +128,8 @@ class IfcCutter:
         self.metadata_pickle_file = 'metadata.pickle'
         self.cut_pickle_file = 'cut.pickle'
         self.should_recut = True
+        self.should_recut_selected = True
+        self.selected_global_ids = []
         self.should_extract = True
         self.diagram_name = None
         self.background_image = None
@@ -250,7 +252,7 @@ class IfcCutter:
             shape_pickle = os.path.join(
                 self.data_dir, 'cache', 'shapes', '{}.pickle'.format(os.path.basename(filename)))
             shape_map = {}
-            if os.path.isfile(shape_pickle):
+            if self.should_recut_selected and os.path.isfile(shape_pickle):
                 with open(shape_pickle, 'rb') as shape_file:
                     shape_map = pickle.load(shape_file)
 
@@ -266,7 +268,11 @@ class IfcCutter:
                         or self.has_annotation(product):
                     continue
                 try:
-                    if product.GlobalId in shape_map:
+                    if self.should_recut_selected \
+                            and product.GlobalId in self.selected_global_ids:
+                        shape = ifcopenshell.geom.create_shape(settings, product).geometry
+                        shape_map[product.GlobalId] = shape
+                    elif product.GlobalId in shape_map:
                         shape = shape_map[product.GlobalId]
                     else:
                         shape = ifcopenshell.geom.create_shape(settings, product).geometry

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -2011,6 +2011,16 @@ class CutSection(bpy.types.Operator):
         ifc_cutter.text_pickle_file = os.path.join(ifc_cutter.data_dir, '{}-text.pickle'.format(self.diagram_name))
         ifc_cutter.metadata_pickle_file = os.path.join(ifc_cutter.data_dir, '{}-metadata.pickle'.format(self.diagram_name))
         ifc_cutter.should_recut = bpy.context.scene.DocProperties.should_recut
+        ifc_cutter.should_recut_selected = bpy.context.scene.DocProperties.should_recut_selected
+        selected_global_ids = []
+        for obj in bpy.context.selected_objects:
+            if 'Ifc' not in obj.name:
+                continue
+            for attribute in obj.BIMObjectProperties.attributes:
+                if attribute.name == 'GlobalId':
+                    selected_global_ids.append(attribute.string_value)
+                    break
+        ifc_cutter.selected_global_ids = selected_global_ids
         ifc_cutter.should_extract = bpy.context.scene.DocProperties.should_extract
         svg_writer = svgwriter.SvgWriter(ifc_cutter)
         numerator, denominator = camera.data.BIMCameraProperties.diagram_scale.split(':')

src/ifcblenderexport/blenderbim/bim/prop.py

@@ -394,6 +394,7 @@ class Subcontext(PropertyGroup):
 
 class DocProperties(PropertyGroup):
     should_recut: BoolProperty(name="Should Recut", default=True)
+    should_recut_selected: BoolProperty(name="Should Recut Selected Only", default=False)
     should_render: BoolProperty(name="Should Render", default=True)
     should_extract: BoolProperty(name="Should Extract", default=True)
     view_name: StringProperty(name="View Name")

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -785,6 +785,8 @@ class BIM_PT_camera(Panel):
         row = layout.row()
         row.prop(dprops, 'should_recut')
         row = layout.row()
+        row.prop(dprops, 'should_recut_selected')
+        row = layout.row()
         row.prop(dprops, 'should_render')
         row = layout.row()
         row.prop(dprops, 'should_extract')