diff --git a/src/barchart/qbarmodelmapper.cpp b/src/barchart/qbarmodelmapper.cpp
index eb1e387..a4b53a9 100644
--- a/src/barchart/qbarmodelmapper.cpp
+++ b/src/barchart/qbarmodelmapper.cpp
@@ -8,6 +8,9 @@
 
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QBarModelMapper::QBarModelMapper(QObject *parent) :
     QObject(parent),
     d_ptr(new QBarModelMapperPrivate(this))
diff --git a/src/barchart/qhbarmodelmapper.cpp b/src/barchart/qhbarmodelmapper.cpp
index 05e971d..c2a63ad 100644
--- a/src/barchart/qhbarmodelmapper.cpp
+++ b/src/barchart/qhbarmodelmapper.cpp
@@ -10,6 +10,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Nothing here yet
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QHBarModelMapper::QHBarModelMapper(QObject *parent) :
     QBarModelMapper(parent)
 {
diff --git a/src/barchart/qvbarmodelmapper.cpp b/src/barchart/qvbarmodelmapper.cpp
index 593d2c0..fbfa780 100644
--- a/src/barchart/qvbarmodelmapper.cpp
+++ b/src/barchart/qvbarmodelmapper.cpp
@@ -10,6 +10,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Nothing here yet
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QVBarModelMapper::QVBarModelMapper(QObject *parent) :
     QBarModelMapper(parent)
 {
diff --git a/src/piechart/qhpiemodelmapper.cpp b/src/piechart/qhpiemodelmapper.cpp
index 1382ded..7bc058f 100644
--- a/src/piechart/qhpiemodelmapper.cpp
+++ b/src/piechart/qhpiemodelmapper.cpp
@@ -46,6 +46,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Default value is: -1 (invalid mapping)
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QHPieModelMapper::QHPieModelMapper(QObject *parent) :
     QPieModelMapper(parent)
 {
diff --git a/src/piechart/qpiemodelmapper.cpp b/src/piechart/qpiemodelmapper.cpp
index b0175df..b1a0878 100644
--- a/src/piechart/qpiemodelmapper.cpp
+++ b/src/piechart/qpiemodelmapper.cpp
@@ -63,6 +63,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     NOTE: used model has to support adding/removing rows/columns and modifying the data of the cells.
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QPieModelMapper::QPieModelMapper(QObject *parent) :
     QObject(parent),
     d_ptr(new QPieModelMapperPrivate(this))
diff --git a/src/piechart/qvpiemodelmapper.cpp b/src/piechart/qvpiemodelmapper.cpp
index b1b5208..50721b9 100644
--- a/src/piechart/qvpiemodelmapper.cpp
+++ b/src/piechart/qvpiemodelmapper.cpp
@@ -18,7 +18,6 @@
 **
 ****************************************************************************/
 
-#include "qpiemodelmapper_p.h"
 #include "qvpiemodelmapper.h"
 
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
@@ -47,6 +46,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Default value is: -1 (invalid mapping)
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QVPieModelMapper::QVPieModelMapper(QObject *parent) :
     QPieModelMapper(parent)
 {
diff --git a/src/xychart/qhxymodelmapper.cpp b/src/xychart/qhxymodelmapper.cpp
index 0186ac0..1423f24 100644
--- a/src/xychart/qhxymodelmapper.cpp
+++ b/src/xychart/qhxymodelmapper.cpp
@@ -23,6 +23,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Default value is: -1 (invalid mapping)
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QHXYModelMapper::QHXYModelMapper(QObject *parent) :
     QXYModelMapper(parent)
 {
diff --git a/src/xychart/qvxymodelmapper.cpp b/src/xychart/qvxymodelmapper.cpp
index c370f8c..aed8254 100644
--- a/src/xychart/qvxymodelmapper.cpp
+++ b/src/xychart/qvxymodelmapper.cpp
@@ -24,6 +24,9 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     Default value is: -1 (invalid mapping)
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QVXYModelMapper::QVXYModelMapper(QObject *parent) :
     QXYModelMapper(parent)
 {
diff --git a/src/xychart/qxymodelmapper.cpp b/src/xychart/qxymodelmapper.cpp
index 6884f98..3913981 100644
--- a/src/xychart/qxymodelmapper.cpp
+++ b/src/xychart/qxymodelmapper.cpp
@@ -38,10 +38,13 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     \mainclass
 
     The instance of this class cannot be created directly. QHXYModelMapper of QVXYModelMapper should be used instead. This class is used to create a connection between QXYSeries and QAbstractItemModel derived model object.
-    It is possible to use both QAbstractItemModel and QPieSeries model API. QPieModelMapper makes sure that QXYSeries and the model are kept in sync.
+    It is possible to use both QAbstractItemModel and QXYSeries model API. QXYModelMapper makes sure that QXYSeries and the model are kept in sync.
     NOTE: used model has to support adding/removing rows/columns and modifying the data of the cells.
 */
 
+/*!
+    Constructs a mapper object which is a child of \a parent.
+*/
 QXYModelMapper::QXYModelMapper(QObject *parent):
     QObject(parent),
     d_ptr(new QXYModelMapperPrivate(this))