From ec42d872043f07ed194383703ded05ed6c0a5f62 Mon Sep 17 00:00:00 2001
From: Kuang Fangjun <csukuangfj@gmail.com>
Date: Sat, 2 Jun 2018 19:16:56 +0800
Subject: [PATCH] fix #11673.

---
 modules/viz/src/shapes.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/viz/src/shapes.cpp b/modules/viz/src/shapes.cpp
index 1dfa7c38e1..30fde1cc5c 100644
--- a/modules/viz/src/shapes.cpp
+++ b/modules/viz/src/shapes.cpp
@@ -528,7 +528,7 @@ void cv::viz::WText3D::setText(const String &text)
 
 cv::String cv::viz::WText3D::getText() const
 {
-    vtkFollower *actor = vtkFollower::SafeDownCast(WidgetAccessor::getProp(*this));
+    vtkActor *actor = vtkActor::SafeDownCast(WidgetAccessor::getProp(*this));
     CV_Assert("This widget does not support text." && actor);
 
     vtkPolyDataMapper *mapper = vtkPolyDataMapper::SafeDownCast(actor->GetMapper());