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	* 창의 프로그램(nehe OpenGL tutorial 10번정도면 괜찮을듯 하군요..^^)		* 창의 프로그램(nehe [[OpenGL]] tutorial 10번정도면 괜찮을듯 하군요..^^)
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imported>Unknown at 05:28, 7 February 2021

2021-02-07T05:28:46Z

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__TOC__
=== 개요 ===
일시 : 2003년 3월 17일 월요일 8시
장소 : 7층 PC실 - 세미나실
=== 내용 ===
PPT파일: [[:File:CGseminar3.zip|CGseminar3.zip]]
=== 숙제 ===
* 벡터 클래스 만들기
{| class="wikitable"
|-
| 윤정수
| [[:File:mathLib.zip|mathLib.zip]] 아직 제작중 역행렬은 어찌 구하징.. ㅡㅡ;;
|-
| 강인수
| [http://zeropage.org/wiki/moin.cgi/_5bLovely_5dboy_5e_5f_5e_2f3DLibrary 옛날에 만들어놓은거]
|-
| 박경태
| 기권. C# struct형으로 만들어보려다가 생고생만 함. 해보기는 했어엽..
|}

* 창의 프로그램(nehe OpenGL tutorial 10번정도면 괜찮을듯 하군요..^^)
{| class="wikitable"
|-
| 박경태
| [[:File:OpenGLATL03_Pkt.zip|OpenGLATL03_Pkt.zip]] ATL(??) 컴파일후 ATLTest.htm를 실행
|-
| 김창성
| [[:File:world.zip|world.zip]] 음...
|}

=== 참고 ===
최태호의 벡터 클래스 입니다. 참고 하세요.

# include "math.h"

///////////////////////////////////////////////////////////////////////
//CGX_Vector

# define DG 4
# define EPSILON 0.000001
# define GX_V_E_MULT(AA,B,C){AA[0]=B[0]*C[0]; AA[1]=B[1]*C[1]; AA[2]=B[2]*C[2]; AA[3]=1;}
# define M_PI 3.141592

template <class T>
class CGX_Vector
{
public:
T e[DG];
public:
CGX_Vector();
CGX_Vector<T> operator+(CGX_Vector<T> in);
CGX_Vector<T> operator+(T* in);
CGX_Vector<T> operator-(CGX_Vector<T> in);
CGX_Vector<T> operator-(T* in);
CGX_Vector<T> operator*(T in);
CGX_Vector<T> operator/(T in);
void operator=(CGX_Vector<T> in);
void operator=(T* in);

T& operator[](int in);

CGX_Vector<T> operator*(CGX_Vector<T> in);//cross product
T operator^(CGX_Vector<T> in);//dot product

CGX_Vector<T> Normalize();
CGX_Vector<T> Clip(T v);
T Max();
BOOL equal(CGX_Vector<T> b);
T* GetElement();
float Length();

friend CGX_Vector<T> operator-(CGX_Vector<T> in);
};
//////////////////////////////////////////////////////////////////////////////
//implement

template<class T>
BOOL CGX_Vector<T>::equal( CGX_Vector<T> b)
{
for(int i=0;i<3;i++) if (e[i]- b[i] > EPSILON) return FALSE;
return TRUE;
}
template<class T>
T* CGX_Vector<T>::GetElement()
{
return e;
}

template<class T>
CGX_Vector<T>::CGX_Vector()
{
for (int i=0;i<DG;i++) e[i]=0;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator+(CGX_Vector<T> in)
{
CGX_Vector<T> temp;
for(int count=0;count<DG;count++){
temp.e[count]=e[count] + in.e[count];
}
return temp;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator+(T* in)
{
CGX_Vector<T> temp;
for(int count=0;count<DG;count++){
temp.e[count]=e[count] + in[count];
}
return temp;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator-(CGX_Vector<T> in)
{
CGX_Vector<T> temp;
for(int count=0;count<DG;count++){
temp.e[count]=e[count] - in.e[count];
}
return temp;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator-(T* in)
{
CGX_Vector<T> temp;
for(int count=0;count<DG;count++){
temp.e[count]=e[count] - in[count];
}
return temp;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator*(T in)
{
CGX_Vector<T> temp;
for (int i=0;i<DG;i++) temp.e[i]= e[i]*in;
return temp;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator/(T in)
{
CGX_Vector<T> temp;
for (int i=0;i<DG;i++) temp.e[i]= e[i]/in;
return temp;
}

template<class T>
void CGX_Vector<T>::operator=(CGX_Vector<T> in)
{
for(int count=0;count<DG;count++){
e[count] = in.e[count];
}

}
template<class T>
void CGX_Vector<T>::operator=(T* in)
{
for(int count=0;count<DG;count++){
e[count] = in[count];
}

}

template<class T>
T& CGX_Vector<T>::operator[](int in)
{
return e[in];
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::operator*(CGX_Vector<T> in)
{
CGX_Vector<T> temp;
temp.e[0]=e[1]*in.e[2] - e[2]*in.e[1];
temp.e[1]=e[2]*in.e[0] - e[0]*in.e[2];
temp.e[2]=e[0]*in.e[1] - e[1]*in.e[0];
return temp;
}

///도트 프로덕트..
template<class T>
T CGX_Vector<T>::operator^(CGX_Vector<T> in)
{
T total=0;
for (int i =0;i<DG-1;i++)//homogenious coordinate system 이므로..
total= total + ( e[i] * in.e[i] );
return total;
}

template<class T>
CGX_Vector<T> CGX_Vector<T>::Normalize()
{
CGX_Vector<T> temp;
float length = (float)Length();
for (int i=0;i<DG-1;i++) {
temp.e[i]= e[i]/length;
e[i] = e[i]/length;

}
temp.e[3]=1.0f;
e[3]=1.0f;
return temp;

}

template<class T>
CGX_Vector<T> CGX_Vector<T>::Clip(T v)
{
CGX_Vector<T> temp;
for (int i=0;i<DG-1;i++) {
if (e[i] > v) temp.e[i]=v;
else temp.e[i]=e[i];
}
return temp;

}

template<class T>
T CGX_Vector<T>::Max()
{
T max=-9999999.0f;
for(int i=0;i<DG-1;i++){
if (e[i]>max) max= e[i];
}
return max;
}

template<class T>
float CGX_Vector<T>::Length()
{
return (float)sqrt(e[0]*e[0] +e[1]*e[1]+ e[2]*e[2] );
}
/////////////////////////////////
//많은 define들의 집합..

typedef CGX_Vector<float> GX_V;
----
[[그래픽스세미나]]

그래픽스세미나/3주차 - Revision history

Maintenance script: Repair MoniWiki formatting after migration

Maintenance script: Repair batch-0004 pages from live compare

imported>Unknown at 05:28, 7 February 2021