HighMap/statistics_8hpp_source.html

/* Copyright (c) 2026 Otto Link. Distributed under the terms of the GNU General

   Public License. The full license is in the file LICENSE, distributed with

   this software. */


#pragma once


#include "highmap/array.hpp"


namespace hmap

{


float autocorr_length_scale(const Array &array, float max_lag_fraction = 0.4f);


glm::vec2 autocorr_length_scale_axial(const Array &array,

                                      float        max_lag_fraction = 0.4f);


float variance(const Array &array, float *p_mean = nullptr);


} // namespace hmap

array.hpp
Declaration of the Array class for 2D floating-point arrays with various mathematical operations and ...

hmap
Definition algebra.hpp:23

hmap::autocorr_length_scale
float autocorr_length_scale(const Array &array, float max_lag_fraction=0.4f)
Estimate the isotropic dominant length scale of a 2D heightmap.
Definition autocorr_length_scale.cpp:13

hmap::autocorr_length_scale_axial
glm::vec2 autocorr_length_scale_axial(const Array &array, float max_lag_fraction=0.4f)
Estimate axis-aligned dominant length scales of a 2D heightmap.
Definition autocorr_length_scale.cpp:65

hmap::variance
float variance(const Array &array, float *p_mean=nullptr)
Compute the population variance of a 2D array.
Definition statistics.cpp:9