/usr/include/gwyddion/libprocess/level.h is in libgwyddion20-dev 2.44-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @(#) $Id: level.h 16226 2014-05-28 19:55:03Z yeti-dn $
* Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GWY_PROCESS_LEVEL_H__
#define __GWY_PROCESS_LEVEL_H__
#include <libprocess/datafield.h>
G_BEGIN_DECLS
void gwy_data_field_area_fit_plane (GwyDataField *data_field,
GwyDataField *mask,
gint col,
gint row,
gint width,
gint height,
gdouble *pa,
gdouble *pbx,
gdouble *pby);
void gwy_data_field_fit_plane (GwyDataField *data_field,
gdouble *pa,
gdouble *pbx,
gdouble *pby);
gboolean gwy_data_field_fit_facet_plane (GwyDataField *data_field,
GwyDataField *mfield,
GwyMaskingType masking,
gdouble *pa,
gdouble *pbx,
gdouble *pby);
void gwy_data_field_plane_level (GwyDataField *data_field,
gdouble a,
gdouble bx,
gdouble by);
void gwy_data_field_plane_rotate (GwyDataField *data_field,
gdouble xangle,
gdouble yangle,
GwyInterpolationType interpolation);
void gwy_data_field_fit_lines (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gint degree,
gboolean exclude,
GwyOrientation orientation);
gdouble* gwy_data_field_fit_polynom (GwyDataField *data_field,
gint col_degree,
gint row_degree,
gdouble *coeffs);
gdouble* gwy_data_field_area_fit_polynom (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gint col_degree,
gint row_degree,
gdouble *coeffs);
void gwy_data_field_subtract_polynom (GwyDataField *data_field,
gint col_degree,
gint row_degree,
const gdouble *coeffs);
void gwy_data_field_area_subtract_polynom (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gint col_degree,
gint row_degree,
const gdouble *coeffs);
gdouble* gwy_data_field_fit_legendre (GwyDataField *data_field,
gint col_degree,
gint row_degree,
gdouble *coeffs);
gdouble* gwy_data_field_area_fit_legendre (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gint col_degree,
gint row_degree,
gdouble *coeffs);
void gwy_data_field_subtract_legendre (GwyDataField *data_field,
gint col_degree,
gint row_degree,
const gdouble *coeffs);
void gwy_data_field_area_subtract_legendre(GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gint col_degree,
gint row_degree,
const gdouble *coeffs);
gdouble* gwy_data_field_fit_poly_max (GwyDataField *data_field,
gint max_degree,
gdouble *coeffs);
gdouble* gwy_data_field_area_fit_poly_max (GwyDataField *data_field,
gint col, gint row,
gint width, gint height,
gint max_degree,
gdouble *coeffs);
void gwy_data_field_subtract_poly_max (GwyDataField *data_field,
gint max_degree,
const gdouble *coeffs);
void gwy_data_field_area_subtract_poly_max(GwyDataField *data_field,
gint col, gint row,
gint width, gint height,
gint max_degree,
const gdouble *coeffs);
gdouble* gwy_data_field_fit_poly(GwyDataField *data_field,
GwyDataField *mask_field,
gint nterms,
const gint *term_powers,
gboolean exclude,
gdouble *coeffs);
gdouble* gwy_data_field_area_fit_poly(GwyDataField *data_field,
GwyDataField *mask_field,
gint col, gint row,
gint width, gint height,
gint nterms,
const gint *term_powers,
gboolean exclude,
gdouble *coeffs);
void gwy_data_field_subtract_poly(GwyDataField *data_field,
gint nterms,
const gint *term_powers,
const gdouble *coeffs);
void gwy_data_field_area_subtract_poly(GwyDataField *data_field,
gint col, gint row,
gint width, gint height,
gint nterms,
const gint *term_powers,
const gdouble *coeffs);
GwyDataField** gwy_data_field_area_fit_local_planes(GwyDataField *data_field,
gint size,
gint col, gint row,
gint width, gint height,
gint nresults,
const GwyPlaneFitQuantity *types,
GwyDataField **results);
GwyDataField* gwy_data_field_area_local_plane_quantity(GwyDataField *data_field,
gint size,
gint col, gint row,
gint width, gint height,
GwyPlaneFitQuantity type,
GwyDataField *result);
GwyDataField** gwy_data_field_fit_local_planes(GwyDataField *data_field,
gint size,
gint nresults,
const GwyPlaneFitQuantity *types,
GwyDataField **results);
GwyDataField* gwy_data_field_local_plane_quantity(GwyDataField *data_field,
gint size,
GwyPlaneFitQuantity type,
GwyDataField *result);
G_END_DECLS
#endif /* __GWY_PROCESS_LEVEL_H__ */
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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