[MeL] Add destructor, copy constructor and method excludeCopyProperties().

MeshLib/Properties.h

@@ -216,6 +216,41 @@ public:
 		return names;
 	}
 
+	/** copy all PropertyVector objects stored in the (internal) map but only
+	 * those values of a PropertyVector whose ids are not in the vector
+	 * exclude_ids.
+	 */
+	Properties excludeCopyProperties(std::vector<std::size_t> const& exclude_ids) const
+	{
+		Properties exclude_copy;
+		for (auto property_vector : _properties) {
+			exclude_copy._properties.insert(
+				std::make_pair(property_vector.first,
+				property_vector.second->clone(exclude_ids))
+			);
+		}
+		return exclude_copy;
+	}
+
+	Properties() {}
+
+	Properties(Properties const& properties)
+		: _properties(properties._properties)
+	{
+		std::vector<std::size_t> exclude_positions;
+		for (auto it(_properties.begin()); it != _properties.end(); ++it) {
+			PropertyVectorBase *t(it->second->clone(exclude_positions));
+			it->second = t;
+		}
+	}
+
+	~Properties()
+	{
+		for (auto property_vector : _properties) {
+			delete property_vector.second;
+		}
+	}
+
 private:
 	/// A mapping from property's name to the stored object of any type.
 	/// See addProperty() and getProperty() documentation.