[vtkusers] Endpoints not follow distance line when moving

[minyang]

Hi VTK User,

My VTK version is 7.1. I use /vtkDistanceWidget +
vtkDistanceRepresentation2D + vtkPointHandleRepresentation2D/ to do
measurement. *After adjust endpoints*, then move distance line by move mouse
with holding left mouse button, the endpoints *not follow the line*, as
below snapshot. When release the left mouse button, endpoints catch up with
the line. 
<http://vtk.1045678.n5.nabble.com/file/n5744325/measurement_point_moving.png> 
Any one know how to make the endpoints follow with distance line when
moving?

Best Wishes,
min




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