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  • 大小: 1.23MB
    文件類型: .rar
    金幣: 2
    下載: 1 次
    發布日期: 2021-01-02
  • 語言: C/C++
  • 標簽: C++??

資源簡介

該程序在.Net2005環境下，使用C++進行編程，原始數據存儲在文本文件中，文本文件保存的是點和弧段信息（也可以是邊）。讀取數據后，算法能夠自動生成拓撲信息，并實現含島多邊形，多邊形使用鏈狀獨立編碼，最后多邊形拓撲信息顯示在屏幕上。通過對傳統的拓撲信息生成算法進行了改進，消除了其存在的弊端，從而極大地提高程序運行的效率。 算法效率高于左轉算法，簡易并不簡單！ 純c++編碼。

資源截圖

代碼片段和文件信息 

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

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

CreatePolygons::CreatePolygons（void）
{
}

CreatePolygons::~CreatePolygons（void）
{
}

/*
*函數功能：	計算兩條直線逆時針方向的夾角
*參數信息：	start：起始點；inf：拐點；end：終止點
*返回值：	兩條直線之間的夾角（弧度）；10.0f則表示計算錯誤
*/
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????時間???名稱
-----------?---------??----------?-----??----

????.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

............此處省略15個文件信息

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