rt_mbr.h
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上传日期:2022-05-23
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- /* Copyright (C) 2000 MySQL AB & Ramil Kalimullin & MySQL Finland AB
- & TCX DataKonsult AB
-
- 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 _rt_mbr_h
- #define _rt_mbr_h
- #ifdef HAVE_RTREE_KEYS
- int rtree_key_cmp(HA_KEYSEG *keyseg, uchar *a, uchar *b, uint key_length,
- uint nextflag);
- int rtree_combine_rect(HA_KEYSEG *keyseg,uchar *, uchar *, uchar*,
- uint key_length);
- double rtree_rect_volume(HA_KEYSEG *keyseg, uchar*, uint key_length);
- int rtree_d_mbr(HA_KEYSEG *keyseg, uchar *a, uint key_length, double *res);
- double rtree_overlapping_area(HA_KEYSEG *keyseg, uchar *a, uchar *b,
- uint key_length);
- double rtree_area_increase(HA_KEYSEG *keyseg, uchar *a, uchar *b,
- uint key_length, double *ab_area);
- double rtree_perimeter_increase(HA_KEYSEG *keyseg, uchar* a, uchar* b,
- uint key_length, double *ab_perim);
- int rtree_page_mbr(MI_INFO *info, HA_KEYSEG *keyseg, uchar *page_buf,
- uchar* c, uint key_length);
- #endif /*HAVE_RTREE_KEYS*/
- #endif /* _rt_mbr_h */