#include?“StdAfx.h“
#include?“CreatePolygons.h“

const?float?PI?=?acos（-1.0f）;
char?CreatePolygons::Pid?=?‘A‘;

CreatePolygons::CreatePolygons（void）
{
}

CreatePolygons::~CreatePolygons（void）
{
}

/*
*函數(shù)功能：	計(jì)算兩條直線逆時(shí)針方向的夾角
*參數(shù)信息：	start：起始點(diǎn)；inf：拐點(diǎn)；end：終止點(diǎn)
*返回值：	兩條直線之間的夾角（弧度）；10.0f則表示計(jì)算錯(cuò)誤
*/
double?CreatePolygons::AngleOfTwoArcs（Point*?start?Point*?inf?Point*?end）
{

	double?aa?=?（?start->X?-?inf->X?）?*?（?start->X?-?inf->X?）?+?（?start->Y?-?inf->Y?）?*?（?start->Y?-?inf->Y?）;
	double?bb?=?（?inf->X?-?end->X?）?*?（?inf->X?-?end->X?）?+?（?inf->Y?-?end->Y?）?*?（?inf->Y?-?end->Y?）;
	double?cc?=?（?start->X?-?end->X?）?*?（?start->X?-?end->X?）?+?（?start->Y?-?end->Y?）?*?（?start->Y?-?end->Y?）;
	double?cosValue?=?（?aa?+?bb?-?cc?）?/?（?2?*?sqrt（?aa?）?*?sqrt（?bb?）?）;
	double?angle?=?ac

?屬性????????????大小?????日期????時(shí)間???名稱
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????.CA....????278528??2009-04-22?19:41??Crosstopology\debug\topology.exe

????.CA....????855904??2009-04-22?19:41??Crosstopology\debug\topology.ilk

????.CA....???1436672??2009-04-22?19:41??Crosstopology\debug\topology.pdb

????.CA....???1021494??2009-01-18?19:22??Crosstopology\Lines.bmp

????.CA....???????288??2009-02-19?15:13??Crosstopology\Lines.txt

????.CA....???1278854??2009-02-16?20:56??Crosstopology\Lines1.bmp

????.CA....???????940??2009-02-19?22:55??Crosstopology\Lines1.txt

????.CA....???????313??2009-12-03?20:51??Crosstopology\readme.txt

????.CA.SH.??????5632??2009-03-17?10:57??Crosstopology\Thumbs.db

????.CA....?????10875??2009-04-22?19:41??Crosstopology\topology\CreatePolygons.cpp

????.CA....??????1775??2009-02-16?22:41??Crosstopology\topology\CreatePolygons.h

????.CA....??????6503??2009-02-19?22:49??Crosstopology\topology\CreateTopology.cpp

????.CA....??????1417??2009-02-19?22:48??Crosstopology\topology\CreateTopology.h

????.CA....??????1172??2009-02-19?22:08??Crosstopology\topology\DataModel.h

????.CA....??????4072??2009-10-12?18:31??Crosstopology\topology\Debug\BuildLog.htm

????.CA....????715125??2009-04-22?19:41??Crosstopology\topology\Debug\CreatePolygons.obj

????.CA....????776949??2009-02-19?22:49??Crosstopology\topology\Debug\CreateTopology.obj

????.CA....????????67??2009-04-22?19:41??Crosstopology\topology\Debug\mt.dep

????.CA....?????10749??2009-02-19?22:41??Crosstopology\topology\Debug\stdafx.obj

????.CA....???????403??2009-02-19?22:41??Crosstopology\topology\Debug\topology.exe.embed.manifest

????.CA....???????468??2009-02-19?22:41??Crosstopology\topology\Debug\topology.exe.embed.manifest.res

????.CA....???????385??2009-04-22?19:41??Crosstopology\topology\Debug\topology.exe.intermediate.manifest

????.CA....????251127??2009-02-19?22:48??Crosstopology\topology\Debug\topology.obj

????.CA....???1048576??2009-02-19?22:41??Crosstopology\topology\Debug\topology.pch

????.CA....????388096??2009-10-12?18:31??Crosstopology\topology\Debug\vc80.idb

????.CA....????356352??2009-04-22?19:41??Crosstopology\topology\Debug\vc80.pdb

????.CA....???????954??2009-01-13?19:25??Crosstopology\topology\ReadMe.txt

????.CA....???????213??2008-12-30?20:43??Crosstopology\topology\stdafx.cpp

????.CA....???????276??2008-12-30?20:43??Crosstopology\topology\stdafx.h

????.CA....???????922??2009-10-12?18:29??Crosstopology\topology\topology.cpp

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