update reader after setting file name

12 years ago · e4b13f2ef0
parent 3da7dd9849
commit e4b13f2ef0
1 changed files with 1 additions and 0 deletions
--- a/modules/viz/src/widget.cpp
+++ b/modules/viz/src/widget.cpp
@ -17,6 +17,7 @@ cv::viz::Widget cv::viz::Widget::fromPlyFile(const String &file_name)
 {
    vtkSmartPointer<vtkPLYReader> reader = vtkSmartPointer<vtkPLYReader>::New ();
    reader->SetFileName (file_name.c_str ());
+    reader->Update();
    
    vtkSmartPointer<vtkDataSet> data = reader->GetOutput();
    CV_Assert(data);