I am beginner in VTK, and I am doing a project using both VTK and OpenCV. The code that I have written is complied well without any compiling error, all the variable are defined as global variable in in a class structure. Before running the line contacting renderWindowInteractor->Start();, I can read all OpenCV variables with correct values, but after that line, all the openCV variables are empty! I changed variables with pointers, hoping to work, but the same error message is appeared that the variable is empty! The problem can be ragarded to thread safe; but I don't know how to disable thread safely in VTK. Can someone tell me what is wrong and what is an efficient solution? Thanks
hi hooshiar,
what is your variable? are u reading a video?
I had a same problem in video reading in C++
No, the variable are OpenCV Mats, which are defined publicly in a Class.
The problem starts when I enter to interaction mode, with this command:
renderWindowInteractor->Start();
before it, the access to all the public variable is possible and they have correct values, but hence the selected line is run, all cv::Mat variable are accessed EMPTY !
A friend of me told that it may be because of "thread safe"; however I could not have fixed it yet.
Do you have any same experience, Erfan?
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