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

using?namespace?std;

struct?Point
{
????double?xy;
????int?code;
}?firstPolygon[4]p1[8]p2[8]p3[8]p4[8]polygon[4];

int?firstnum=4p1n=0p2n=0p3n=0p4n=0;
double?xminxmaxyminymax;

//編碼
int?encode（double?xdouble?y）
{
????//??0??0??0??0
????//?上?下?右?左
????int?code=0;
????if（x????????code+=1;
????if（x>polygon[2].x）//xmax
????????code+=2;
????if（y????????code+=4;
????if（y>polygon[2].y）//ymax
????????code+=8;
????return?code;
}

void?init（）
{
????glClearColor（0000.0）;//清除當前所有顏色
????glMatrixMode（GL_PROJECTION）;//投影模型
????gluOrtho2D（05000500）;//二維投影，參數越大，直線越小
????polygon[0].x=200polygon[0].y=200;//裁剪窗口
????polygon[1].x=300polygon[1].y=200;
????polygon[2].x=300polygon[2].y=300;
????polygon[3].x=200polygon[3].y=300;
????xmin=polygon[0].xymin=polygon[0].y;
????xmax=polygon[2].xymax=polygon[2].y;
????firstPoly

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

?????文件?????979283??2014-12-18?16:58??Sutherland_Hodgman\bin\Debug\Sutherland_Hodgman.exe

?????文件???????6783??2014-12-18?16:58??Sutherland_Hodgman\main.cpp

?????文件??????23059??2014-12-18?16:58??Sutherland_Hodgman\obj\Debug\main.o

?????文件???????1552??2014-12-18?15:40??Sutherland_Hodgman\Sutherland_Hodgman.cbp

?????文件???????5731??2014-12-18?16:32??Sutherland_Hodgman\Sutherland_Hodgman.depend

?????文件????????667??2014-12-18?16:59??Sutherland_Hodgman\Sutherland_Hodgman.layout

?????目錄??????????0??2014-12-20?12:50??Sutherland_Hodgman\bin\Debug

?????目錄??????????0??2014-12-20?12:50??Sutherland_Hodgman\obj\Debug

?????目錄??????????0??2014-12-20?12:50??Sutherland_Hodgman\bin

?????目錄??????????0??2014-12-20?12:50??Sutherland_Hodgman\obj

?????目錄??????????0??2014-12-20?12:50??Sutherland_Hodgman

-----------?---------??----------?-----??----

??????????????1017075????????????????????11