diff --git a/src/common/QskArcMetrics.cpp b/src/common/QskArcMetrics.cpp
index 70eeb12f..bc6fb549 100644
--- a/src/common/QskArcMetrics.cpp
+++ b/src/common/QskArcMetrics.cpp
@@ -45,6 +45,11 @@ void QskArcMetrics::setSizeMode( Qt::SizeMode sizeMode ) noexcept
     m_sizeMode = sizeMode;
 }
 
+bool QskArcMetrics::isClosed() const
+{
+    return qAbs( m_spanAngle ) >= 360.0;
+}
+
 bool QskArcMetrics::containsAngle( qreal angle ) const
 {
     angle = qskConstrainedDegrees( angle );
diff --git a/src/common/QskArcMetrics.h b/src/common/QskArcMetrics.h
index ecd94326..8e3fef11 100644
--- a/src/common/QskArcMetrics.h
+++ b/src/common/QskArcMetrics.h
@@ -46,6 +46,7 @@ class QSK_EXPORT QskArcMetrics
     constexpr qreal angleAtRatio( qreal ratio ) const noexcept;
 
     bool containsAngle( qreal ) const;
+    bool isClosed() const;
 
     void setThickness( qreal ) noexcept;
     constexpr qreal thickness() const noexcept;