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blender-archive/source/blender/blenlib/BLI_quadric.h
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

39 lines
852 B
C++

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
#pragma once
/** \file
* \ingroup bli
*/
#ifdef __cplusplus
extern "C" {
#endif
typedef struct Quadric {
double a2, ab, ac, ad, b2, bc, bd, c2, cd, d2;
} Quadric;
/* Conversion. */
void BLI_quadric_from_plane(Quadric *q, const double v[4]);
void BLI_quadric_to_vector_v3(const Quadric *q, double v[3]);
void BLI_quadric_clear(Quadric *q);
/* Math operations. */
void BLI_quadric_add_qu_qu(Quadric *a, const Quadric *b);
void BLI_quadric_add_qu_ququ(Quadric *r, const Quadric *a, const Quadric *b);
void BLI_quadric_mul(Quadric *a, double scalar);
/* Solve. */
double BLI_quadric_evaluate(const Quadric *q, const double v[3]);
bool BLI_quadric_optimize(const Quadric *q, double v[3], double epsilon);
#ifdef __cplusplus
}
#endif