Open3D (C++ API)  0.16.1
NeighborSearchAllocator.h
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27
29#include "torch/script.h"
30
31// These classes implement functors that can be passed to the neighbor search
32// functions.
33
34template <class T, class TIndex>
36public:
37 NeighborSearchAllocator(torch::DeviceType device_type, int device_idx)
38 : device_type(device_type), device_idx(device_idx) {}
39
40 void AllocIndices(TIndex** ptr, size_t num) {
41 neighbors_index = torch::empty(
42 {int64_t(num)}, torch::dtype(ToTorchDtype<TIndex>())
43 .device(device_type, device_idx));
44 *ptr = neighbors_index.data_ptr<TIndex>();
45 }
46
47 void AllocDistances(T** ptr, size_t num) {
48 neighbors_distance = torch::empty(
49 {int64_t(num)}, torch::dtype(ToTorchDtype<T>())
50 .device(device_type, device_idx));
51 *ptr = neighbors_distance.data_ptr<T>();
52 }
53
54 const TIndex* IndicesPtr() const {
55 return neighbors_index.data_ptr<TIndex>();
56 }
57
58 const T* DistancesPtr() const { return neighbors_distance.data_ptr<T>(); }
59
60 const torch::Tensor& NeighborsIndex() const { return neighbors_index; }
61 const torch::Tensor& NeighborsDistance() const {
62 return neighbors_distance;
63 }
64
65private:
66 torch::Tensor neighbors_index;
67 torch::Tensor neighbors_distance;
68 torch::DeviceType device_type;
69 int device_idx;
70};
Definition: NeighborSearchAllocator.h:35
const T * DistancesPtr() const
Definition: NeighborSearchAllocator.h:58
void AllocIndices(TIndex **ptr, size_t num)
Definition: NeighborSearchAllocator.h:40
NeighborSearchAllocator(torch::DeviceType device_type, int device_idx)
Definition: NeighborSearchAllocator.h:37
void AllocDistances(T **ptr, size_t num)
Definition: NeighborSearchAllocator.h:47
const TIndex * IndicesPtr() const
Definition: NeighborSearchAllocator.h:54
const torch::Tensor & NeighborsIndex() const
Definition: NeighborSearchAllocator.h:60
const torch::Tensor & NeighborsDistance() const
Definition: NeighborSearchAllocator.h:61