a12a8a71bb
The goal is to solve confusion of the "All rights reserved" for licensing
code under an open-source license.
The phrase "All rights reserved" comes from a historical convention that
required this phrase for the copyright protection to apply. This convention
is no longer relevant.
However, even though the phrase has no meaning in establishing the copyright
it has not lost meaning in terms of licensing.
This change makes it so code under the Blender Foundation copyright does
not use "all rights reserved". This is also how the GPL license itself
states how to apply it to the source code:
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software ...
This change does not change copyright notice in cases when the copyright
is dual (BF and an author), or just an author of the code. It also does
mot change copyright which is inherited from NaN Holding BV as it needs
some further investigation about what is the proper way to handle it.
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2015 Blender Foundation */
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#pragma once
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/** \file
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* \ingroup bli
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*/
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#include "BLI_compiler_attrs.h"
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#include "BLI_math_inline.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef BLI_MATH_GCC_WARN_PRAGMA
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wredundant-decls"
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#endif
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/* -------------------------------------------------------------------- */
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/** \name Covariance Matrices
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* \{ */
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/**
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* \brief Compute the covariance matrix of given set of nD coordinates.
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*
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* \param n: the dimension of the vectors (and hence, of the covariance matrix to compute).
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* \param cos_vn: the nD points to compute covariance from.
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* \param cos_vn_num: the number of nD coordinates in cos_vn.
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* \param center: the center (or mean point) of cos_vn. If NULL,
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* it is assumed cos_vn is already centered.
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* \param use_sample_correction: whether to apply sample correction
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* (i.e. get 'sample variance' instead of 'population variance').
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* \return r_covmat the computed covariance matrix.
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*/
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void BLI_covariance_m_vn_ex(int n,
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const float *cos_vn,
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int cos_vn_num,
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const float *center,
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bool use_sample_correction,
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float *r_covmat);
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/**
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* \brief Compute the covariance matrix of given set of 3D coordinates.
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*
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* \param cos_v3: the 3D points to compute covariance from.
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* \param cos_v3_num: the number of 3D coordinates in cos_v3.
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* \return r_covmat the computed covariance matrix.
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* \return r_center the computed center (mean) of 3D points (may be NULL).
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*/
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void BLI_covariance_m3_v3n(const float (*cos_v3)[3],
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int cos_v3_num,
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bool use_sample_correction,
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float r_covmat[3][3],
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float r_center[3]);
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#ifdef BLI_MATH_GCC_WARN_PRAGMA
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# pragma GCC diagnostic pop
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#endif
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/** \} */
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#ifdef __cplusplus
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}
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#endif
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