Point Cloud Library (PCL)
1.9.1
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39 #ifndef PCL_OCTREE_SEARCH_H_
40 #define PCL_OCTREE_SEARCH_H_
42 #include <pcl/point_cloud.h>
44 #include <pcl/octree/octree_pointcloud.h>
56 template<
typename Po
intT,
typename LeafContainerT = OctreeContainerPo
intIndices ,
typename BranchContainerT = OctreeContainerEmpty >
69 typedef boost::shared_ptr<OctreePointCloudSearch<PointT, LeafContainerT, BranchContainerT> >
Ptr;
70 typedef boost::shared_ptr<const OctreePointCloudSearch<PointT, LeafContainerT, BranchContainerT> >
ConstPtr;
107 voxelSearch (
const int index, std::vector<int>& point_idx_data);
120 std::vector<float> &k_sqr_distances)
122 return (
nearestKSearch (cloud[index], k, k_indices, k_sqr_distances));
134 std::vector<float> &k_sqr_distances);
146 nearestKSearch (
int index,
int k, std::vector<int> &k_indices, std::vector<float> &k_sqr_distances);
190 std::vector<float> &k_sqr_distances,
unsigned int max_nn = 0)
192 return (
radiusSearch (cloud.
points[index], radius, k_indices, k_sqr_distances, max_nn));
205 std::vector<float> &k_sqr_distances,
unsigned int max_nn = 0)
const;
217 radiusSearch (
int index,
const double radius, std::vector<int> &k_indices,
218 std::vector<float> &k_sqr_distances,
unsigned int max_nn = 0)
const;
240 std::vector<int> &k_indices,
241 int max_voxel_count = 0)
const;
252 boxSearch (
const Eigen::Vector3f &min_pt,
const Eigen::Vector3f &max_pt, std::vector<int> &k_indices)
const;
365 unsigned int tree_depth, std::vector<int>& k_indices,
366 std::vector<float>& k_sqr_distances,
unsigned int max_nn)
const;
380 const OctreeKey& key,
unsigned int tree_depth,
381 const double squared_search_radius,
382 std::vector<prioPointQueueEntry>& point_candidates)
const;
394 unsigned int tree_depth,
int& result_index,
float& sqr_distance);
414 double max_z,
unsigned char a,
const OctreeNode* node,
416 int max_voxel_count)
const;
429 const OctreeKey& key,
unsigned int tree_depth, std::vector<int>& k_indices)
const;
449 double max_x,
double max_y,
double max_z,
451 std::vector<int> &k_indices,
452 int max_voxel_count)
const;
467 double &min_x,
double &min_y,
double &min_z,
468 double &max_x,
double &max_y,
double &max_z,
469 unsigned char &a)
const
472 const float epsilon = 1e-10f;
473 if (direction.x () == 0.0)
474 direction.x () = epsilon;
475 if (direction.y () == 0.0)
476 direction.y () = epsilon;
477 if (direction.z () == 0.0)
478 direction.z () = epsilon;
484 if (direction.x () < 0.0)
486 origin.x () =
static_cast<float> (this->
min_x_) +
static_cast<float> (this->
max_x_) - origin.x ();
487 direction.x () = -direction.x ();
490 if (direction.y () < 0.0)
492 origin.y () =
static_cast<float> (this->
min_y_) +
static_cast<float> (this->
max_y_) - origin.y ();
493 direction.y () = -direction.y ();
496 if (direction.z () < 0.0)
498 origin.z () =
static_cast<float> (this->
min_z_) +
static_cast<float> (this->
max_z_) - origin.z ();
499 direction.z () = -direction.z ();
502 min_x = (this->
min_x_ - origin.x ()) / direction.x ();
503 max_x = (this->
max_x_ - origin.x ()) / direction.x ();
504 min_y = (this->
min_y_ - origin.y ()) / direction.y ();
505 max_y = (this->
max_y_ - origin.y ()) / direction.y ();
506 min_z = (this->
min_z_ - origin.z ()) / direction.z ();
507 max_z = (this->
max_z_ - origin.z ()) / direction.z ();
603 #ifdef PCL_NO_PRECOMPILE
604 #include <pcl/octree/impl/octree_search.hpp>
607 #endif // PCL_OCTREE_SEARCH_H_
OctreeT::BranchNode BranchNode
This file defines compatibility wrappers for low level I/O functions.
prioPointQueueEntry()
Empty constructor
int getIntersectedVoxelIndicesRecursive(double min_x, double min_y, double min_z, double max_x, double max_y, double max_z, unsigned char a, const OctreeNode *node, const OctreeKey &key, std::vector< int > &k_indices, int max_voxel_count) const
Recursively search the tree for all intersected leaf nodes and return a vector of indices.
int getIntersectedVoxelIndices(Eigen::Vector3f origin, Eigen::Vector3f direction, std::vector< int > &k_indices, int max_voxel_count=0) const
Get indices of all voxels that are intersected by a ray (origin, direction).
std::vector< PointT, Eigen::aligned_allocator< PointT > > points
The point data.
prioBranchQueueEntry(OctreeNode *_node, OctreeKey &_key, float _point_distance)
Constructor for initializing priority queue entry.
double getKNearestNeighborRecursive(const PointT &point, unsigned int K, const BranchNode *node, const OctreeKey &key, unsigned int tree_depth, const double squared_search_radius, std::vector< prioPointQueueEntry > &point_candidates) const
Recursive search method that explores the octree and finds the K nearest neighbors.
const OctreeNode * node
Pointer to octree node.
bool operator<(const prioPointQueueEntry &rhs) const
Operator< for comparing priority queue entries with each other.
void boxSearchRecursive(const Eigen::Vector3f &min_pt, const Eigen::Vector3f &max_pt, const BranchNode *node, const OctreeKey &key, unsigned int tree_depth, std::vector< int > &k_indices) const
Recursive search method that explores the octree and finds points within a rectangular search area.
pcl::PointCloud< PointT > PointCloud
bool voxelSearch(const PointT &point, std::vector< int > &point_idx_data)
Search for neighbors within a voxel at given point.
int nearestKSearch(const PointCloud &cloud, int index, int k, std::vector< int > &k_indices, std::vector< float > &k_sqr_distances)
Search for k-nearest neighbors at the query point.
void getNeighborsWithinRadiusRecursive(const PointT &point, const double radiusSquared, const BranchNode *node, const OctreeKey &key, unsigned int tree_depth, std::vector< int > &k_indices, std::vector< float > &k_sqr_distances, unsigned int max_nn) const
Recursive search method that explores the octree and finds neighbors within a given radius.
int getIntersectedVoxelCenters(Eigen::Vector3f origin, Eigen::Vector3f direction, AlignedPointTVector &voxel_center_list, int max_voxel_count=0) const
Get a PointT vector of centers of all voxels that intersected by a ray (origin, direction).
PointCloud represents the base class in PCL for storing collections of 3D points.
int radiusSearch(const PointCloud &cloud, int index, double radius, std::vector< int > &k_indices, std::vector< float > &k_sqr_distances, unsigned int max_nn=0)
Search for all neighbors of query point that are within a given radius.
void approxNearestSearch(const PointCloud &cloud, int query_index, int &result_index, float &sqr_distance)
Search for approx.
A point structure representing Euclidean xyz coordinates, and the RGB color.
boost::shared_ptr< std::vector< int > > IndicesPtr
Abstract octree node class
Priority queue entry for point candidates
std::vector< PointT, Eigen::aligned_allocator< PointT > > AlignedPointTVector
int point_idx_
Index representing a point in the dataset given by setInputCloud.
float point_distance_
Distance to query point.
boost::shared_ptr< OctreePointCloudSearch< PointT, LeafContainerT, BranchContainerT > > Ptr
OctreePointCloudSearch(const double resolution)
Constructor.
float point_distance
Distance to query point.
int getNextIntersectedNode(double x, double y, double z, int a, int b, int c) const
Get the next visited node given the current node upper bounding box corner.
Priority queue entry for branch nodes
boost::shared_ptr< const PointCloud > PointCloudConstPtr
void approxNearestSearchRecursive(const PointT &point, const BranchNode *node, const OctreeKey &key, unsigned int tree_depth, int &result_index, float &sqr_distance)
Recursive search method that explores the octree and finds the approximate nearest neighbor.
void initIntersectedVoxel(Eigen::Vector3f &origin, Eigen::Vector3f &direction, double &min_x, double &min_y, double &min_z, double &max_x, double &max_y, double &max_z, unsigned char &a) const
Initialize raytracing algorithm.
float pointSquaredDist(const PointT &point_a, const PointT &point_b) const
Helper function to calculate the squared distance between two points.
bool operator<(const prioBranchQueueEntry rhs) const
Operator< for comparing priority queue entries with each other.
boost::shared_ptr< PointCloud > PointCloudPtr
prioPointQueueEntry(unsigned int &point_idx, float point_distance)
Constructor for initializing priority queue entry.
int getIntersectedVoxelCentersRecursive(double min_x, double min_y, double min_z, double max_x, double max_y, double max_z, unsigned char a, const OctreeNode *node, const OctreeKey &key, AlignedPointTVector &voxel_center_list, int max_voxel_count) const
Recursively search the tree for all intersected leaf nodes and return a vector of voxel centers.
OctreePointCloud< PointT, LeafContainerT, BranchContainerT > OctreeT
int getFirstIntersectedNode(double min_x, double min_y, double min_z, double mid_x, double mid_y, double mid_z) const
Find first child node ray will enter.
prioBranchQueueEntry()
Empty constructor
OctreeT::LeafNode LeafNode
boost::shared_ptr< const std::vector< int > > IndicesConstPtr
Octree pointcloud search class
int boxSearch(const Eigen::Vector3f &min_pt, const Eigen::Vector3f &max_pt, std::vector< int > &k_indices) const
Search for points within rectangular search area Points exactly on the edges of the search rectangle ...
OctreeT::BranchNode BranchNode
OctreeT::LeafNode LeafNode
virtual ~OctreePointCloudSearch()
Empty class destructor.
boost::shared_ptr< const OctreePointCloudSearch< PointT, LeafContainerT, BranchContainerT > > ConstPtr