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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@12096 57a11ea4-9604-0410-9ed3-97b8803252fd
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* gog-reg-curve.h :
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*
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* Copyright (C) 2005 Jean Brefort (jean.brefort@normalesup.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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* USA
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*/
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#ifndef GOG_REG_CURVE_H
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#define GOG_REG_CURVE_H
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#include <goffice/graph/gog-series.h>
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#include <goffice/graph/gog-data-set.h>
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struct _GogRegCurve {
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GogStyledObject base;
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GogSeries *series;
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gboolean weighted;
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GODataVector *weights;
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GogDatasetElement *bounds;
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gboolean skip_invalid; /* do not take into account invalid data */
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int ninterp; /* how many points to use for display the curve as a vpath */
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};
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typedef struct {
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GogStyledObjectClass base;
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double (*get_value_at) (GogRegCurve *reg_curve, double x);
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gchar const* (*get_equation) (GogRegCurve *reg_curve);
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double (*get_R2) (GogRegCurve *reg_curve);
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} GogRegCurveClass;
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#define GOG_REG_CURVE_TYPE (gog_reg_curve_get_type ())
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#define GOG_REG_CURVE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GOG_REG_CURVE_TYPE, GogRegCurve))
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#define IS_GOG_REG_CURVE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GOG_REG_CURVE_TYPE))
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GType gog_reg_curve_get_type (void);
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GogRegCurve *gog_reg_curve_new_by_name (char const *id);
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GogRegCurve *gog_reg_curve_new_by_type (GogRegCurveType const *type);
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gchar const *gog_reg_curve_get_equation (GogRegCurve *reg_curve);
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double gog_reg_curve_get_R2 (GogRegCurve *reg_curve);
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void gog_reg_curve_get_bounds (GogRegCurve *reg_curve, double *xmin, double *xmax);
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#endif /* GOG_REG_CURVE_H */
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