python-pcl/examples/crophull.py

[ZKarry]

hello, about python-pcl/examples/crophull.py, I have a question to consult.
The crophull API is used to extract the point cloud inside an polygon.
However, I ran python-pcl/examples/crophull.py, which did not extract the point cloud of the polygon.
The PCL version I used is python-pcl 0.3.0a1.
I tried to modify the program and did not get valid results.
I hope I can get your help. Thank you very much.