Drawing cameras now save IfcBlock representations in IFC. See #1153.

src/ifcblenderexport/blenderbim/bim/module/drawing/operator.py

@@ -0,0 +1,33 @@
+import bpy
+from blenderbim.bim.ifc import IfcStore
+
+
+class AddDrawing(bpy.types.Operator):
+    bl_idname = "bim.add_drawing"
+    bl_label = "Add Drawing"
+
+    def execute(self, context):
+        new = context.scene.DocProperties.drawings.add()
+        new.name = "DRAWING {}".format(len(context.scene.DocProperties.drawings))
+        if not bpy.data.collections.get("Views"):
+            context.scene.collection.children.link(bpy.data.collections.new("Views"))
+        views_collection = bpy.data.collections.get("Views")
+        view_collection = bpy.data.collections.new("IfcGroup/" + new.name)
+        views_collection.children.link(view_collection)
+        camera = bpy.data.objects.new(new.name, bpy.data.cameras.new(new.name))
+        camera.location = (0, 0, 1.7)  # The view shall be 1.7m above the origin
+        camera.data.type = "ORTHO"
+        camera.data.ortho_scale = 50  # The default of 6m is too small
+        camera.data.clip_end = 10  # A slightly more reasonable default
+        if context.scene.unit_settings.system == "IMPERIAL":
+            camera.data.BIMCameraProperties.diagram_scale = '1/8"=1\'-0"|1/96'
+        else:
+            camera.data.BIMCameraProperties.diagram_scale = "1:100|1/100"
+        context.scene.camera = camera
+        view_collection.objects.link(camera)
+        area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
+        area.spaces[0].region_3d.view_perspective = "CAMERA"
+        new.camera = camera
+        bpy.ops.bim.assign_class(obj=camera.name, ifc_class="IfcAnnotation")
+        bpy.ops.bim.activate_drawing_style()
+        return {"FINISHED"}