/****************************************************************************
*?RTree.C
*
*?MODULE:???????R-Tree?library?
*??????????????
*?AUTHOR（S）:????Antonin?Guttman?-?original?code
*???????????????Daniel?Green?（green@superliminal.com）?-?major?clean-up
*???????????????????????????????and?implementation?of?bounding?spheres
*???????????????
*?PURPOSE:??????Multi?Dimensional?Index
*
*?COPYRIGHT:????（C）?2001?by?the?GRASS?Development?Team
*
*???????????????This?program?is?free?software?under?the?GNU?General?Public
*???????????????License?（>=v2）.?Read?the?file?COPYING?that?comes?with?GRASS
*???????????????for?details.
*
*?LAST?MODIFY:?????????ZhangLiang?（cheungmine@gmail.com）?-?2007-11
*****************************************************************************/

#include?
#include?
#include?
#include?
#include?

#include?“rtree.h“

#define????????METHODS????????1

/*?variables?for?finding?a?partition?*/
typedef?struct?_RTREEPARTITION
{
????int????????????partition[MAXCARD+1];
????int????????????total;
????int????????????minfill;
????int????????????taken[MAXCARD+1];
????int????????????count[2];
????RTREEMBR????cover[2];
????REALTYPE????area[2];
}?RTREEPARTITION;

RTREEBRANCH????????BranchBuf[MAXCARD+1];
int????????????????BranchCount;
RTREEMBR????????CoverSplit;
REALTYPE????????CoverSplitArea;
RTREEPARTITION????Partitions[METHODS];


#define?BIG_NUM?（FLT_MAX/4.0）

#define?INVALID_RECT（x）?（（x）->bound[0]?>?（x）->bound[DIMS_NUMB]）
#define?MIN（a?b）?（（a）?#define?MAX（a?b）?（（a）?>?（b）???（a）?:?（b））

int?NODECARD?=?MAXCARD;
int?LEAFCARD?=?MAXCARD;

/*?balance?criteria?for?node?splitting?*/
/*?NOTE:?can?be?changed?if?needed.?*/
#define?MINNODEFILL?（NODECARD?/?2）
#define?MINLEAFFILL?（LEAFCARD?/?2）

#define?MAXKIDS（n）?（（n）->level?>?0???NODECARD?:?LEAFCARD）
#define?MINFILL（n）?（（n）->level?>?0???MINNODEFILL?:?MINLEAFFILL）

static?int?set_max（int?*which?int?new_max）
{
????if（2?>?new_max?||?new_max?>?MAXCARD）
????????return?0;
????*which?=?new_max;
????return?1;
}


/**
?*?Load?branch?buffer?with?branches?from?full?node?plus?the?extra?branch.
?*/
static?void?_RTreeGetBranches（?RTREENODE?*node?RTREEBRANCH?*br）
{
????int?i;

????assert（node?&&?br）;
????
????/*?load?the?branch?buffer?*/
????for?（i=0;?i????{
????????assert（node->branch[i].child）;?/*?n?should?have?every?entry?full?*/
????????BranchBuf[i]?=?node->branch[i];
????}

????BranchBuf[MAXKIDS（node）]?=?*br;
????BranchCount?=?MAXKIDS（node）?+?1;

????/*?calculate?mbr?containing?all?in?the?set?*/
????CoverSplit?=?BranchBuf[0].mbr;

????for?（i=1;?i????{
????????CoverSplit?=?RTreeCombineRect（&CoverSplit?&BranchBuf[i].mbr）;
????}

????CoverSplitArea?=?RTreeRectSphericalVolume（&CoverSplit）;
????RTreeInitNode（node）;
}



/**
?*?Put?a?branch?in?one?of?the?groups.
?*/
static?void?_RTreeClassify（int?i?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????4601517??2014-08-17?21:39??Rtree\Data10.asc

?????文件?????186227??2014-08-17?21:39??Rtree\Data20.asc

?????文件?????118272??2014-11-11?17:29??Rtree\Debug\Rtree.exe

?????文件?????738308??2014-11-11?17:29??Rtree\Debug\Rtree.ilk

?????文件????1018880??2014-11-11?17:29??Rtree\Debug\Rtree.pdb

?????文件????6017162??2014-08-07?09:58??Rtree\NoiseModel1.asc

?????文件????4745286??2014-11-11?17:30??Rtree\Rtree\Data1.asc

?????文件????5036878??2014-08-19?12:26??Rtree\Rtree\Data10.asc

?????文件?????430664??2014-11-11?17:30??Rtree\Rtree\Data2.asc

?????文件?????139072??2014-08-19?12:26??Rtree\Rtree\Data20.asc

?????文件?????620098??2014-11-11?17:30??Rtree\Rtree\Data3.asc

?????文件?????307646??2014-08-20?14:35??Rtree\Rtree\Data3_14_8.asc

?????文件?????337550??2014-08-20?14:19??Rtree\Rtree\Data3_18_8.asc

?????文件????4555852??2014-11-11?17:30??Rtree\Rtree\Data4.asc

?????文件????4868304??2014-08-20?14:35??Rtree\Rtree\Data4_14_8.asc

?????文件????4838400??2014-08-20?14:19??Rtree\Rtree\Data4_18_8.asc

?????文件???????8810??2014-11-11?17:29??Rtree\Rtree\Debug\BuildLog.htm

?????文件?????????65??2014-11-11?17:29??Rtree\Rtree\Debug\mt.dep

?????文件????????663??2014-08-19?12:21??Rtree\Rtree\Debug\Rtree.exe.embed.manifest

?????文件????????728??2014-08-19?12:21??Rtree\Rtree\Debug\Rtree.exe.embed.manifest.res

?????文件????????621??2014-11-11?17:29??Rtree\Rtree\Debug\Rtree.exe.intermediate.manifest

?????文件??????73681??2014-08-20?15:12??Rtree\Rtree\Debug\RTree.obj

?????文件?????312242??2014-11-11?17:29??Rtree\Rtree\Debug\TestNoise.obj

?????文件?????265216??2014-11-11?17:29??Rtree\Rtree\Debug\vc90.idb

?????文件?????266240??2014-11-11?17:29??Rtree\Rtree\Debug\vc90.pdb

?????文件?????170005??2014-11-11?17:30??Rtree\Rtree\density

?????文件?????469458??2014-08-19?12:26??Rtree\Rtree\density0

?????文件??????30244??2014-08-06?19:54??Rtree\Rtree\RTree.cpp

?????文件???????6594??2014-08-20?15:12??Rtree\Rtree\RTree.h

?????文件???????4037??2014-08-07?21:32??Rtree\Rtree\Rtree.vcproj

............此處省略14個文件信息