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fix issue #9486.

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This commit is contained in:
Fangjun Kuang 2018-02-11 20:08:53 +08:00
parent e2a99d24ec
commit ce2a65db85
1 changed files with 4 additions and 0 deletions
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4
modules/viz/src/widget.cpp
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@ -284,6 +284,10 @@ cv::Affine3d cv::viz::Widget3D::getPose() const
{ {
vtkProp3D *actor = vtkProp3D::SafeDownCast(WidgetAccessor::getProp(*this)); vtkProp3D *actor = vtkProp3D::SafeDownCast(WidgetAccessor::getProp(*this));
CV_Assert("Widget is not 3D." && actor); CV_Assert("Widget is not 3D." && actor);
if (!actor->GetUserMatrix())
{
return Affine3d(); // empty user matrix, return an identity transform.
}
return Affine3d(*actor->GetUserMatrix()->Element); return Affine3d(*actor->GetUserMatrix()->Element);
} }