// purpose :
// =======================================================================
Graphic3d_ClipPlane::Graphic3d_ClipPlane(const Graphic3d_ClipPlane& theOther)
-: myEquation (theOther.myEquation),
+: Standard_Transient(theOther),
+ myEquation (theOther.myEquation),
myIsOn (theOther.myIsOn),
myIsCapping (theOther.myIsCapping),
myMaterial (theOther.myMaterial),