39 lines
852 B
C
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
|