File distances.hpp¶
-
namespace
distances
¶ Compute distances between points.
Functions for computing distances between points in 3D space.
- Author
- Oliver Laslett
- Date
- 2017
Functions
-
std::vector<std::vector<std::array<double, 3>>>
pair_wise_distance_vectors
(std::vector<std::array<double, 3>> points)¶ Computes the distance vector between points in 3d space.
Given a list of x,y,z coordinates, compute the distance vector between every pair of x,y,z coordinates in the list.
- Return
- NxN std::vector matrix of distances between each pair of points
- Parameters
points
: length N vector of arrays of x,y,z coordinates
-
std::vector<std::vector<double>>
pair_wise_distance_magnitude
(std::vector<std::array<double, 3>> points)¶ Computes the Euclidean distance between pairs of points.
-
std::vector<std::vector<std::array<double, 3>>>
pair_wise_distance_unit_vectors
(std::vector<std::array<double, 3>> points)¶ Computes the unit distance vector between a list of points.
-
std::vector<std::vector<double>>
pair_wise_distance_magnitude
(std::vector<std::vector<std::array<double, 3>>> distance_vectors)¶ Computes the Euclidean distance from a matrix of distance vectors.
Given a matrix of distance vectors, compute the 2norm of the vector corresponding to the Euclidean distance.
- Return
- NxN matrix of Euclidean distance values
- Parameters
distance_vectors
: NxN symmetrical matrix of distance vectors (x,y,z coordinates)
-
std::vector<std::vector<std::array<double, 3>>>
pair_wise_distance_unit_vectors
(std::vector<std::vector<std::array<double, 3>>> distance_vectors, std::vector<std::vector<double>> distance_magnitudes)¶ Computes the unit distance vectors from distance vectors and their magnitudes.