51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* GDSII-Converter
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* Copyright (C) 2018 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of GDSII-Converter.
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*
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* GDSII-Converter is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* GDSII-Converter 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 GDSII-Converter. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file vector-operations.h
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* @brief Header for 2D Vector operations
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* @author Mario Hüttel <mario.huettel@gmx.net>
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*/
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#ifndef _VECTOR_OPERATIONS_H_
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#define _VECTOR_OPERATIONS_H_
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#include <math.h>
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struct vector_2d {
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double x;
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double y;
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};
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#define DEG2RAD(a) ((a)*M_PI/180.0)
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double vector_2d_scalar_multipy(struct vector_2d *a, struct vector_2d *b);
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void vector_2d_normalize(struct vector_2d *vec);
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void vector_2d_rotate(struct vector_2d *vec, double angle);
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struct vector_2d *vector_2d_copy(struct vector_2d *opt_res, struct vector_2d *vec);
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struct vector_2d *vector_2d_alloc(void);
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void vector_2d_free(struct vector_2d *vec);
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void vector_2d_scale(struct vector_2d *vec, double scale);
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double vector_2d_abs(struct vector_2d *vec);
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double vector_2d_calculate_angle_between(struct vector_2d *a, struct vector_2d *b);
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void vector_2d_subtract(struct vector_2d *res, struct vector_2d *a, struct vector_2d *b);
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void vector_2d_add(struct vector_2d *res, struct vector_2d *a, struct vector_2d *b);
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#endif /* _VECTOR_OPERATIONS_H_ */
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