gimp/app/vector2d.h

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/* vector2d
* Copyright (C) 1998 Jay Cox <jaycox@earthlink.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __VECTOR2D_H__
#define __VECTOR2D_H__
typedef struct _vector2d
{
double x, y;
} vector2d;
void vector2d_set (vector2d *v, double x, double y);
double vector2d_dot_product (vector2d *v1, vector2d *v2);
double vector2d_magnitude (vector2d *v);
#endif /* __VECTOR2D_H__ */