diff --git a/src/domain.cpp b/src/domain.cpp
index f2969e7..49114ed 100644
--- a/src/domain.cpp
+++ b/src/domain.cpp
@@ -2,18 +2,16 @@
 
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
-Domain::Domain():
-m_minX(0),
-m_maxX(0),
-m_minY(0),
-m_maxY(0)
+Domain::Domain(qreal minX, qreal maxX, qreal minY, qreal maxY):
+m_minX(minX),
+m_maxX(maxX),
+m_minY(minY),
+m_maxY(maxY)
 {
-
 }
 
 Domain::~Domain()
 {
-	// TODO Auto-generated destructor stub
 }
 
 qreal Domain::spanX() const
diff --git a/src/domain_p.h b/src/domain_p.h
index c60f8db..e4f8ffc 100644
--- a/src/domain_p.h
+++ b/src/domain_p.h
@@ -7,7 +7,7 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
 class Domain {
 public:
-	Domain();
+	Domain(qreal minX=0, qreal maxX=0, qreal minY=0, qreal maxY=0);
 	virtual ~Domain();
 
 	qreal spanX() const;