Update include file hierarchy: Move include file to central include tree

include/gds-render/geometric/vector-operations.h

@@ -0,0 +1,58 @@
+/*
+ * GDSII-Converter
+ * Copyright (C) 2018  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of GDSII-Converter.
+ *
+ * GDSII-Converter is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * GDSII-Converter 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 GDSII-Converter.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * @file vector-operations.h
+ * @brief Header for 2D Vector operations
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
+
+/**
+ * @addtogroup geometric
+ * @{
+ */
+
+
+#ifndef _VECTOR_OPERATIONS_H_
+#define _VECTOR_OPERATIONS_H_
+
+#include <math.h>
+
+struct vector_2d {
+    double x;
+    double y;
+};
+
+#define DEG2RAD(a) ((a)*M_PI/180.0)
+
+double vector_2d_scalar_multipy(struct vector_2d *a, struct vector_2d *b);
+void vector_2d_normalize(struct vector_2d *vec);
+void vector_2d_rotate(struct vector_2d *vec, double angle);
+struct vector_2d *vector_2d_copy(struct vector_2d *opt_res, struct vector_2d *vec);
+struct vector_2d *vector_2d_alloc(void);
+void vector_2d_free(struct vector_2d *vec);
+void vector_2d_scale(struct vector_2d *vec, double scale);
+double vector_2d_abs(struct vector_2d *vec);
+double vector_2d_calculate_angle_between(struct vector_2d *a, struct vector_2d *b);
+void vector_2d_subtract(struct vector_2d *res, struct vector_2d *a, struct vector_2d *b);
+void vector_2d_add(struct vector_2d *res, struct vector_2d *a, struct vector_2d *b);
+
+#endif /* _VECTOR_OPERATIONS_H_ */
+
+/** @} */