# Related Codes - [feature/CCAResponse](https://github.com/project8/mermithid/tree/feature/CCAResponse) branch > [`mermithid/processors/DataGenerator4D/SpatialSampler/SpatialSampler.py`](https://github.com/project8/mermithid/blob/b43773909b280a5b46dbe3f63a628fdc34e29093/mermithid/processors/DataGenerator4D/SpatialSampler/SpatialSampler.py) # Problem - In the numerical mode, it doesn't need to build the Theta-R PDF by itself. Let it just apply the trapping efficiency.
Related Codes
mermithid/processors/DataGenerator4D/SpatialSampler/SpatialSampler.pyProblem