#include?“stdafx.h“

#pragma?warning（disable:4305）?//禁止將單精度浮點數轉化為雙精度浮點數

enum?Ref_Plain?{?XOY?YOZ?XOZ?};

struct?Vertex{
	float?x?y?z;
};

struct?HalfQuarterSphere{
	Vertex?topVertex;//?1/8圓的穹頂點
	Vertex?**pVertexs;//其余頂點
	int?numCircles;//緯線數量
	int?numLine;//經線數量連接南北兩極
	float?radius;//半徑
};

HalfQuarterSphere?hqSphere;

void?generateHalfQuarterSphere（int?numCir/*緯線數*/?int?numLin/*經線數*/?HalfQuarterSphere?&hqSphere?float?R）{//生成1/8球體所有的頂點
	hqSphere.numCircles?=?numCir;
	hqSphere.numLine?=?numLin;
	hqSphere.radius?=?R;
	hqSphere.topVertex.z?=?R;
	hqSphere.topVertex.x?=?hqSphere.topVertex.y?=?0;
	//申請內存塊
	hqSphere.pVertexs?=?new?Vertex*[numCir];
	for?（int?i?=?0;?i?		hqSphere.pVertexs[i]?=?new?Vertex[numLin];
	}
	float?cirAngleSegment?=?HALF_PI?/?（numLin?-?1）;//每道緯線的間距
	float?cirAngleOffset?=?0;
	float?zOffset?=?0;
	float?angleOffset?=?0;
	float?linAngleSegment?=?HALF_PI?/?（numCir?-?1）;//每道相鄰經線在XOY平面投影線的夾角

	//初始化緯線與XOZ平面的交點
	float?curR?=?0;
	int?boundLine?=?numLin?-?1;
	for?（int?i?=?numCir?-?1;?i?>=?0;?i--）{
		zOffset?=?R*sin（angleOffset）;
		//初始化當前緯線與始經線，末經線的交點
		curR?=?hqSphere.pVertexs[i][0].x?=?hqSphere.pVertexs[i][boundLine].y?=?sqrt（R*R?-?zOffset*zOffset）;
		hqSphere.pVertexs[i][0].y?=?hqSphere.pVertexs[i][boundLine].x?=?0;
		hqSphere.pVertexs[i][0].z?=?hqSphere.pVertexs[i][boundLine].z?=?zOffset;
		cirAngleOffset?=?cirAngleSegment;
		//初始化當前緯線與其余經線的交點
		for（int?j?=?1;?j?			hqSphere.pVertexs[i][j].x?=?curR*cos（cirAngleOffset）;
			hqSphere.pVertexs[i][j].y?=?curR*sin（cirAngleOffset）;
			hqSphere.pVertexs[i][j].z?=?zOffset;
			cirAngleOffset?+=?cirAngleSegment;
		}
		angleOffset?+=?linAngleSegment;
	}
}

void?flipHalfQuarterSphere（HalfQuarterSphere?&hqSphere?Ref_Plain?rp）{
	switch?（rp）{
	case?XOY://Z坐標取反
		hqSphere.topVertex.z?=?-hqSphere.topVertex.z;
		for?（int?i?=?0;?i?			for?（int?j?=?0;?j?				hqSphere.pVertexs[i][j].z?=?-hqSphere.pVertexs[i][j].z;
			}
		}
		break;
	case?YOZ://X坐標取反
		hqSphere.topVertex.x?=?-hqSphere.topVertex.x;
		for?（int?i?=?0;?i?			for?（int?j?=?0;?j?				hqSphere.pVertexs[i][j].x?=?-hqSphere.pVertexs[i][j].x;
			}
		}
		break;
	case?XOZ://Y坐標取反
		hqSphere.topVertex.y?=?-hqSphere.topVertex.y;
		for?（int?i?=?0;?i?			for?（int?j?=?0;?j?				hqSphere.pVertexs[i][j].y?=?-hqSphere.pVertexs[i][j].y;
			}
		}
		break;
	}
}

void?renderHalfQuarterSphere（const?HalfQuarterSphere?&hqSphere）{//繪制1/8球
	glBegin（GL_TRIANGLE_FAN）;//以穹點為中心畫三角形扇
	glNormal3f（hqSphere.topVertex.x?hqSphere.topVertex.y?hqSphere.topVertex.z）;
	glVertex3f（hqSphere.topVertex.x?hqSphere.topVertex.y?hqSphere.topVertex.z）;
	for?（int?i?=?0;?i?		glNormal3f（hqSphere.pVertexs[0][i].x?hqSphere.pVertexs[0][i].y?hqSphere.pVertexs[0][i].z）;
		glVertex

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????6354??2019-03-12?18:18??Sphere\Sphere\CGfxOpenGL.cpp
?????目錄???????????0??2019-03-12?18:17??Sphere\
?????目錄???????????0??2019-03-11?19:50??Sphere\Debug\
?????文件???????56320??2019-03-12?18:16??Sphere\Debug\Sphere.exe
?????文件??????531596??2019-03-12?18:16??Sphere\Debug\Sphere.ilk
?????文件?????1371136??2019-03-12?18:16??Sphere\Debug\Sphere.pdb
?????目錄???????????0??2019-03-12?18:17??Sphere\Sphere\
?????文件?????????411??2019-03-11?19:10??Sphere\Sphere\CGfxOpenGL.h
?????目錄???????????0??2019-03-12?18:16??Sphere\Sphere\Debug\
?????文件???????26377??2019-03-12?18:16??Sphere\Sphere\Debug\CGfxOpenGL.obj
?????文件????????1150??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.Build.CppClean.log
?????文件????????1791??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.log
?????文件???????17888??2019-03-12?15:56??Sphere\Sphere\Debug\Sphere.obj
?????文件?????7471104??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.pch
?????文件????????6776??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.res
?????目錄???????????0??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\
?????文件???????14676??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\CL.read.1.tlog
?????文件????????1978??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\CL.write.1.tlog
?????文件?????????161??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\Sphere.lastbuildstate
?????文件????????2040??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\cl.command.1.tlog
?????文件????????1552??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\link.command.1.tlog
?????文件????????3318??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\link.read.1.tlog
?????文件?????????706??2019-03-12?18:16??Sphere\Sphere\Debug\Sphere.tlog\link.write.1.tlog
?????文件?????????464??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.tlog\rc.command.1.tlog
?????文件????????2584??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.tlog\rc.read.1.tlog
?????文件?????????202??2019-03-11?19:50??Sphere\Sphere\Debug\Sphere.tlog\rc.write.1.tlog
?????文件??????240121??2019-03-11?19:50??Sphere\Sphere\Debug\stdafx.obj
?????文件??????437248??2019-03-12?18:16??Sphere\Sphere\Debug\vc120.idb
?????文件??????552960??2019-03-12?18:16??Sphere\Sphere\Debug\vc120.pdb
?????文件????????2244??2019-03-11?19:09??Sphere\Sphere\ReadMe.txt
?????文件?????????716??2019-03-11?19:09??Sphere\Sphere\Resource.h
............此處省略16個文件信息