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using | self_t = KDTreeEigenMatrixAdaptor< MatrixType, DIM, Distance, row_major > |
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using | num_t = typename MatrixType::Scalar |
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using | IndexType = typename MatrixType::Index |
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using | metric_t = typename Distance::template traits< num_t, self_t, IndexType >::distance_t |
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using | index_t = KDTreeSingleIndexAdaptor< metric_t, self_t, row_major ? MatrixType::ColsAtCompileTime :MatrixType::RowsAtCompileTime, IndexType > |
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using | Offset = typename index_t::Offset |
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using | Size = typename index_t::Size |
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using | Dimension = typename index_t::Dimension |
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| KDTreeEigenMatrixAdaptor (const Dimension dimensionality, const std::reference_wrapper< const MatrixType > &mat, const int leaf_max_size=10) |
| Constructor: takes a const ref to the matrix object with the data points.
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| KDTreeEigenMatrixAdaptor (const self_t &)=delete |
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void | query (const num_t *query_point, const Size num_closest, IndexType *out_indices, num_t *out_distances_sq, const int=10) const |
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const self_t & | derived () const |
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self_t & | derived () |
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Size | kdtree_get_point_count () const |
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num_t | kdtree_get_pt (const IndexType idx, size_t dim) const |
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template<class BBOX > |
bool | kdtree_get_bbox (BBOX &) const |
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template<class MatrixType, int32_t DIM = -1, class Distance = nanoflann::metric_L2, bool row_major = true>
struct nanoflann::KDTreeEigenMatrixAdaptor< MatrixType, DIM, Distance, row_major >
An L2-metric KD-tree adaptor for working with data directly stored in an Eigen Matrix, without duplicating the data storage. You can select whether a row or column in the matrix represents a point in the state space.
Example of usage:
Eigen::Matrix<num_t,Eigen::Dynamic,Eigen::Dynamic> mat;
Eigen::Matrix<num_t,Dynamic,Dynamic>>;
const int max_leaf = 10;
my_kd_tree_t mat_index(mat, max_leaf);
mat_index.index->buildIndex();
mat_index.index->...
Definition: nanoflann.hpp:2247
- Template Parameters
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DIM | If set to >0, it specifies a compile-time fixed dimensionality for the points in the data set, allowing more compiler optimizations. |
Distance | The distance metric to use: nanoflann::metric_L1, nanoflann::metric_L2, nanoflann::metric_L2_Simple, etc. |
row_major | If set to true the rows of the matrix are used as the points, if set to false the columns of the matrix are used as the points. |