Doxygen tweaks

src/App/Document.cpp

@@ -21,7 +21,16 @@
  ***************************************************************************/
 
 
-/*! \namespace App \class App::Document
+/*!
+\defgroup Document Document
+\ingroup APP
+\brief The Base class of the FreeCAD Document
+
+This is besides the Application class the most important class in FreeCAD
+It contains all the data of the opened, saved or newly created FreeCAD Document.
+The Document manage the Undo and Redo mechanism and the linking of documents.
+
+\namespace App \class App::Document
 This is besides the Application class the most important class in FreeCAD
 It contains all the data of the opened, saved or newly created FreeCAD Document.
 The Document manage the Undo and Redo mechanism and the linking of documents.

src/App/DocumentObject.cpp

@@ -42,6 +42,10 @@
 
 using namespace App;
 
+/** \defgroup DocObject Document Object
+    \ingroup APP
+    \brief Base class of all objects handled in the Document
+*/
 
 PROPERTY_SOURCE(App::DocumentObject, App::TransactionalObject)
 

src/App/Expression.cpp

@@ -72,6 +72,11 @@
 #pragma warning(disable : 4065)
 #endif
 
+/** \defgroup Expression Expressions framework
+    \ingroup APP
+    \brief The expression system allows users to write expressions and formulas that produce values
+*/
+
 using namespace Base;
 using namespace App;
 

src/Base/Quantity.cpp

@@ -34,6 +34,11 @@
 #include "UnitsApi.h"
 #include "Console.h"
 
+/** \defgroup Units Units system
+    \ingroup BASE
+    \brief The quantities and units system enables FreeCAD to work transparently with many different units
+*/
+
 // suppress annoying warnings from generated source files
 #ifdef _MSC_VER
 # pragma warning(disable : 4003)

src/Base/core-base.dox

@@ -21,3 +21,7 @@
     - Units: Management and conversion of different units
 */
 
+/** \defgroup GeomPrimers Geometry primers
+ *  \ingroup BASE
+    \brief Basic structures used by geomoetric objects
+*/