Implement IFC element inspector interface, useful for training and teaching OpenBIM

src/ifcblenderexport/blenderbim/bim/__init__.py

@@ -208,6 +208,8 @@ if bpy is not None:
         operator.CopyPropertyToSelection,
         operator.CreateShapeFromStepId,
         operator.SelectHighPolygonMeshes,
+        operator.InspectFromStepId,
+        operator.InspectFromObject,
         operator.RefreshDrawingList,
         operator.GetRepresentationIfcParameters,
         operator.UpdateIfcRepresentation,
@@ -241,6 +243,7 @@ if bpy is not None:
         prop.BcfTopicDocumentReference,
         prop.BcfTopicRelatedTopic,
         prop.Subcontext,
+        prop.Attribute,
         prop.BIMProperties,
         prop.BIMDebugProperties,
         prop.BCFProperties,
@@ -248,7 +251,6 @@ if bpy is not None:
         prop.BIMLibrary,
         prop.MapConversion,
         prop.TargetCRS,
-        prop.Attribute,
         prop.IfcParameter,
         prop.BoundaryCondition,
         prop.PsetQto,

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -4341,6 +4341,49 @@ class SelectHighPolygonMeshes(bpy.types.Operator):
         return {"FINISHED"}
 
 
+class InspectFromStepId(bpy.types.Operator):
+    bl_idname = "bim.inspect_from_step_id"
+    bl_label = "Inspect From STEP ID"
+    step_id: bpy.props.IntProperty()
+    guid: bpy.props.StringProperty()
+
+    def execute(self, context):
+        self.file = ifc.IfcStore.get_file()
+        if self.step_id:
+            bpy.context.scene.BIMDebugProperties.active_step_id = self.step_id
+            element = self.file.by_id(self.step_id)
+        else:
+            pass
+        while len(bpy.context.scene.BIMDebugProperties.attributes) > 0:
+            bpy.context.scene.BIMDebugProperties.attributes.remove(0)
+        while len(bpy.context.scene.BIMDebugProperties.inverse_attributes) > 0:
+            bpy.context.scene.BIMDebugProperties.inverse_attributes.remove(0)
+        for key, value in element.get_info().items():
+            new = bpy.context.scene.BIMDebugProperties.attributes.add()
+            new.name = key
+            new.string_value = str(value)
+            if isinstance(value, ifcopenshell.entity_instance):
+                new.int_value = int(value.id())
+
+        for key in dir(element):
+            if not key[0].isalpha() or key[0] != key[0].upper() or key in element.get_info() or not getattr(element, key):
+                continue
+            new = bpy.context.scene.BIMDebugProperties.inverse_attributes.add()
+            new.name = key
+            new.string_value = str(getattr(element, key))
+            if isinstance(value, ifcopenshell.entity_instance):
+                new.int_value = int(value.id())
+        return {"FINISHED"}
+
+
+class InspectFromObject(bpy.types.Operator):
+    bl_idname = "bim.inspect_from_object"
+    bl_label = "Inspect From Object"
+
+    def execute(self, context):
+        return {"FINISHED"}
+
+
 class RefreshDrawingList(bpy.types.Operator):
     bl_idname = "bim.refresh_drawing_list"
     bl_label = "Refresh Drawing List"

src/ifcblenderexport/blenderbim/bim/prop.py

@@ -1668,6 +1668,10 @@ class BIMObjectProperties(PropertyGroup):
 class BIMDebugProperties(PropertyGroup):
     step_id: IntProperty(name="STEP ID")
     number_of_polygons: IntProperty(name="Number of Polygons")
+    active_step_id: IntProperty(name="STEP ID")
+    step_id_breadcrumb: CollectionProperty(name="STEP ID Breadcrumb", type=StrProperty)
+    attributes: CollectionProperty(name="Attributes", type=Attribute)
+    inverse_attributes: CollectionProperty(name="Inverse Attributes", type=Attribute)
 
 
 class BIMMaterialProperties(PropertyGroup):

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -2228,19 +2228,46 @@ class BIM_PT_debug(Panel):
         layout = self.layout
 
         scene = context.scene
-        bim_props = scene.BIMProperties
-        debug_props = scene.BIMDebugProperties
+        props = scene.BIMDebugProperties
 
         row = layout.row()
-        row.prop(debug_props, "step_id", text="")
+        row.prop(props, "step_id", text="")
         row = layout.row()
         row.operator("bim.create_shape_from_step_id")
 
         row = layout.row()
-        row.prop(debug_props, "number_of_polygons", text="")
+        row.prop(props, "number_of_polygons", text="")
         row = layout.row()
         row.operator("bim.select_high_polygon_meshes")
 
+        layout.label(text="Inspector:")
+
+        row = layout.row()
+        row.prop(props, "active_step_id", text="")
+        row = layout.row(align=True)
+        row.operator("bim.inspect_from_step_id").step_id = bpy.context.scene.BIMDebugProperties.active_step_id
+        row.operator("bim.inspect_from_object")
+
+        if props.attributes:
+            layout.label(text="Direct attributes:")
+
+        for index, attribute in enumerate(props.attributes):
+            row = layout.row(align=True)
+            row.prop(attribute, "name", text="")
+            row.prop(attribute, "string_value", text="")
+            if attribute.int_value:
+                row.operator("bim.inspect_from_step_id", icon="DISCLOSURE_TRI_RIGHT", text="").step_id = attribute.int_value
+
+        if props.inverse_attributes:
+            layout.label(text="Inverse attributes:")
+
+        for index, attribute in enumerate(props.inverse_attributes):
+            row = layout.row(align=True)
+            row.prop(attribute, "name", text="")
+            row.prop(attribute, "string_value", text="")
+            if attribute.int_value:
+                row.operator("bim.inspect_from_step_id", icon="DISCLOSURE_TRI_RIGHT", text="").step_id = attribute.int_value
+
 
 def ifc_units(self, context):
     scene = context.scene