Refactor qto utils and migrate to bmesh volume calculation. See #1222.

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -1838,73 +1838,6 @@ class SelectIfcPatchOutput(bpy.types.Operator):
         return {"RUNNING_MODAL"}
 
 
-class CalculateEdgeLengths(bpy.types.Operator):
-    bl_idname = "bim.calculate_edge_lengths"
-    bl_label = "Calculate Edge Lengths"
-
-    def execute(self, context):
-        result = 0
-        for obj in bpy.context.selected_objects:
-            if not obj.data or not obj.data.edges:
-                continue
-            for edge in obj.data.edges:
-                if edge.select:
-                    result += (obj.data.vertices[edge.vertices[1]].co - obj.data.vertices[edge.vertices[0]].co).length
-        bpy.context.scene.BIMProperties.qto_result = str(round(result, 3))
-        return {"FINISHED"}
-
-
-class CalculateFaceAreas(bpy.types.Operator):
-    bl_idname = "bim.calculate_face_areas"
-    bl_label = "Calculate Face Areas"
-
-    def execute(self, context):
-        result = 0
-        for obj in bpy.context.selected_objects:
-            if not obj.data or not obj.data.polygons:
-                continue
-            for polygon in obj.data.polygons:
-                if polygon.select:
-                    result += polygon.area
-        bpy.context.scene.BIMProperties.qto_result = str(round(result, 3))
-        return {"FINISHED"}
-
-
-class CalculateObjectVolumes(bpy.types.Operator):
-    bl_idname = "bim.calculate_object_volumes"
-    bl_label = "Calculate Object Volumes"
-
-    def execute(self, context):
-        # TODO: reimplement
-        qto_calculator = qto.QtoCalculator()
-        result = 0
-        for obj in bpy.context.selected_objects:
-            if not obj.data:
-                continue
-            result += qto_calculator.get_volume(obj)
-        bpy.context.scene.BIMProperties.qto_result = str(round(result, 3))
-        return {"FINISHED"}
-
-
-class AddOpening(bpy.types.Operator):
-    bl_idname = "bim.add_opening"
-    bl_label = "Add Opening"
-
-    def execute(self, context):
-        if context.active_object.children and "IfcOpeningElement/" in context.active_object.children[0].name:
-            opening = context.active_object.children[0]
-        else:
-            opening = context.active_object
-        if context.selected_objects[0] != context.active_object:
-            obj = context.selected_objects[0]
-        else:
-            obj = context.selected_objects[1]
-        modifier = obj.modifiers.new("IfcOpeningElement", "BOOLEAN")
-        modifier.operation = "DIFFERENCE"
-        modifier.object = opening
-        return {"FINISHED"}
-
-
 class SetOverrideColour(bpy.types.Operator):
     bl_idname = "bim.set_override_colour"
     bl_label = "Set Override Colour"