/usr/include/gegl-0.3/npd/npd_math.h is in libgegl-dev 0.3.4-1ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /*
* This file is part of N-point image deformation library.
*
* N-point image deformation library is free software: you can
* redistribute it and/or modify it under the terms of the
* GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* N-point image deformation library is distributed in the hope
* that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with N-point image deformation library.
* If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) 2013 Marek Dvoroznak <dvoromar@gmail.com>
*/
#ifndef __NPD_MATH_H__
#define __NPD_MATH_H__
#include "npd_common.h"
#include <gegl-matrix.h>
typedef GeglMatrix3 NPDMatrix;
#define NPD_EPSILON 0.00001
void npd_compute_affinity (NPDPoint *p11,
NPDPoint *p21,
NPDPoint *p31,
NPDPoint *p12,
NPDPoint *p22,
NPDPoint *p32,
NPDMatrix *T);
void npd_apply_transformation (NPDMatrix *T,
NPDPoint *src,
NPDPoint *dest);
gboolean npd_equal_floats_epsilon (gfloat a,
gfloat b,
gfloat epsilon);
gboolean npd_equal_floats (gfloat a,
gfloat b);
gfloat npd_SED (NPDPoint *p1,
NPDPoint *p2);
#endif /* __NPD_MATH_H__ */
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