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/*
Quickplot - an interactive 2D plotter
Copyright (C) 1998-2011 Lance Arsenault
This file is part of Quickplot.
Quickplot 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 3 of the License,
or (at your option) any later version.
Quickplot 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 Quickplot. If not, see <http://www.gnu.org/licenses/>.
*/
struct qp_color_gen
{
double hue, saturation, value,
hue_x, saturation_x, value_x;
};
extern
struct qp_color_gen *qp_color_gen_create(void);
extern
void qp_color_gen_destroy(struct qp_color_gen *cg);
/* returns the hue which is in [0,1) */
extern
double qp_color_gen_next(struct qp_color_gen *cg,
double *red,
double *green,
double *blue,
double hue);
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