vtkCornerAnnotation unnecessary method call
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
in vtkCornerAnnotation::RenderOpaqueGeometry, the method this->TextReplace(ia, wl) should be called only if there is a change in ImageActor or window/level, and not on viewport resize.
The current condition is (line 424): if (viewport_size_has_changed || tprop_has_changed || (this->GetMTime() > this->BuildTime) || (ia && (ia != this->LastImageActor || (ia->GetMTime() > this->BuildTime)) || (wl && wl->GetMTime() > this->BuildTime))