gui3d.cpp

大家自己看一下就可以咯！对学ＶＣ很有帮助的！

		fxch	st(2)
		faddp	st(5),st(0)
		faddp	st(3),st(0)
		faddp	st(1),st(0)
		fxch	st(2)
		fadd	[eax]m.e14
		fxch	st(1)
		fadd	[eax]m.e24
		fxch	st(2)
		fadd	[eax]m.e34
		fxch	st(1)
		fstp	[ecx]dot.x
		fstp	[ecx]dot.z
		fstp	[ecx]dot.y
	}
}

inline void dotMove(POINT3D* dot,CONVERT_MATRIX3D* m)
{	POINT3D p = *dot;
	dot->x = p.x + m->e14;
	dot->y = p.y + m->e24;
	dot->z = p.z + m->e34;
}

inline void fillTriangleParam(CPointList* p,TRIANGLE3D* t)
{	float x1,y1,z1;
	POINT3D* pt;
	VECTOR3D v1,v2;
	pt = &p->points[t->p1];
	x1 = pt->x, y1 = pt->y, z1 = pt->z;
	pt = &p->points[t->p2];
	v1.x = pt->x - x1, v1.y = pt->y - y1, v1.z = pt->z - z1;
	pt = &p->points[t->p3];
	v2.x = pt->x - x1, v2.y = pt->y - y1, v2.z = pt->z - z1;
	vectorForkMul(&v1,&v2,&v1);
	t->a = v1.x, t->b = v1.y, t->c = v1.z;
	t->d = -(v1.x*x1+v1.y*y1+v1.z*z1);
}

inline void fillPolygonParam(CPointList* p,POLYGON3D* t)
{	float x1,y1,z1;
	POINT3D* pt;
	VECTOR3D v1,v2;
	pt = &p->points[t->points[0]];
	x1 = pt->x, y1 = pt->y, z1 = pt->z;
	pt = &p->points[t->points[1]];
	v1.x = pt->x - x1, v1.y = pt->y - y1, v1.z = pt->z - z1;
	pt = &p->points[t->points[2]];
	v2.x = pt->x - x1, v2.y = pt->y - y1, v2.z = pt->z - z1;
	vectorForkMul(&v1,&v2,&v1);
	t->a = v1.x, t->b = v1.y, t->c = v1.z;
	t->d = -(v1.x*x1+v1.y*y1+v1.z*z1);
}

inline void drawTriangle3d(DDSURFACEDESC* ddsd,CPointList* p,TRIANGLE3D* t,WORD color)
{	int x1,y1,x2,y2,x3,y3;
	POINT3D* pt;
	pt = &p->points[t->p1];
	x1 = (int)pt->x, y1 = (int)pt->y;
	pt = &p->points[t->p2];
	x2 = (int)pt->x, y2 = (int)pt->y;
	pt = &p->points[t->p3];
	x3 = (int)pt->x, y3 = (int)pt->y; 
	line(ddsd,x1,y1,x2,y2,color);
	line(ddsd,x1,y1,x3,y3,color);
	line(ddsd,x2,y2,x3,y3,color);
}

#define MAX_LINE_LENTH 40
//****************************************************************************
//read .dxf file!
//****************************************************************************
BOOL readDxfFile(LPCSTR fileName,CPointList* p,CFaceList* f)
{	char buf[MAX_LINE_LENTH],*cc;
	double x,y,z;
	long p1,p2,p3;
	long l;
	UINT base = p->topPos;
	BOOL swc = FALSE;
	POINT3D point;
	TRIANGLE3D triangle;
	ifstream ifs(fileName);
	if(!ifs)
		return FALSE;
	triangle.maped = FALSE;
	while(!ifs.eof())
	{	ifs.getline( buf,MAX_LINE_LENTH-1);
		if(strcmp(buf,"VERTEX") == 0)
		{	ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			l = strtol( buf, &cc, 10 );
			if(l != 10)
				return FALSE;
			ifs.getline( buf,MAX_LINE_LENTH-1);
			x = strtod( buf, &cc);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			y = strtod( buf, &cc);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			z = strtod( buf, &cc);
			if(x == 0 && y == 0 && z == 0)
			{	ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p1 = strtol( buf, &cc, 10);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p2 = strtol( buf, &cc, 10);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p3 = strtol( buf, &cc, 10);
				if(p1 >= 0)
					triangle.p1 = (UINT)(p1-1+base);
				else
					triangle.p1 = (UINT)(-p1-1+base);
				if(p2 >= 0)
					triangle.p2 = (UINT)(p2-1+base);
				else
					triangle.p2 = (UINT)(-p2-1+base);
				if(p3 >= 0)
					triangle.p3 = (UINT)(p3-1+base);
				else
					triangle.p3 = (UINT)(-p3-1+base);
				f->addTriangle(&triangle);
				swc = TRUE;
			}
			else
			{	if(swc)
				{	swc = FALSE;
					base = p->topPos;
				}
				point.x = (float)x;
				point.y = (float)y;
				point.z = (float)z;
				p->addPoint(&point);
			}
		}
		if(ifs.bad())
			return FALSE;
	}
	return TRUE;
}

//****************************************************************************
//read .asc file!
//****************************************************************************
float uuu[5000],vvv[5000];
BOOL readAscFile(LPCSTR fileName,CPointList* p,CFaceList* f)
{	char buf[200],*cc;
	double x,y,z;
	long p1,p2,p3;
	long l;
	char *stopStr,*pos;
	UINT pid,fid,line = 0;
	UINT base = p->topPos;
	BOOL swc = FALSE;
	POINT3D point;
	TRIANGLE3D triangle;
	ifstream ifs(fileName);
	if(!ifs)
		return FALSE;
	triangle.maped = TRUE;
	triangle.map = 4;
	while(!ifs.eof())
	{	ifs.getline( buf,200-1);
		line++;
		if((strncmp(buf,"Vertex",6) == 0) && buf[7] >= 48 && buf[7] <= 57)
		{	pid = strtoul(buf+7, &stopStr, 10 );
			if(*stopStr != ':')
				return FALSE;
			if((pos = strchr(buf,':')) == NULL)
				return FALSE;
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			point.x = (float)strtod(pos+1,&stopStr);
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			point.y = (float)strtod(pos+1,&stopStr);
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			point.z = (float)strtod(pos+1,&stopStr);
			if((pos = strchr(pos+1,':')) != NULL)
			{	uuu[pid+base] = (float)strtod(pos+1,&stopStr);
				if((pos = strchr(pos+1,':')) != NULL)
					vvv[pid+base] = (float)strtod(pos+1,&stopStr);
				else
					vvv[pid+base] = (float)0;
			}
			else
			{	uuu[pid+base] = (float)0;
				vvv[pid+base] = (float)0;
			}
			if(swc)
			{	swc = FALSE;
				base = p->topPos;
			}
			p->addPoint(&point);
		}
		else if((strncmp(buf,"Face",4) == 0) && buf[5] >= 48 && buf[5] <= 57)
		{	fid = strtoul(buf+5, &stopStr, 10 );
			if(*stopStr != ':')
				return FALSE;
			if((pos = strchr(buf,':')) == NULL)
				return FALSE;
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			triangle.p1 = strtol(pos+1,&stopStr,10) + base;
			triangle.u1 = uuu[triangle.p1];
			triangle.v1 = vvv[triangle.p1];
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			triangle.p2 = strtol(pos+1,&stopStr,10) + base;
			triangle.u2 = uuu[triangle.p2];
			triangle.v2 = vvv[triangle.p2];
			if((pos = strchr(pos+1,':')) == NULL)
				return FALSE;
			triangle.p3 = strtol(pos+1,&stopStr,10) + base;
			triangle.u3 = uuu[triangle.p3];
			triangle.v3 = vvv[triangle.p3];
			f->addTriangle(&triangle);
			swc = TRUE;
		}
		if(ifs.bad())
			return FALSE;
	}
	return TRUE;
}

/*
BOOL readDxfFile2(LPCSTR fileName,CPointList* p,CPolygonList* f)
{	char buf[MAX_LINE_LENTH],*cc;
	double x,y,z;
	long p1,p2,p3;
	long l;
	UINT pbuf1[MAX_BORDER_NUM],pbuf2[10],flag;
	POLYGON3D plg1,plg2;
	UINT base = p->topPos,line = 0;
	BOOL swc = FALSE,b1 = FALSE, b2 = FALSE;
	POINT3D point;
	plg1.num = 0;
	plg1.points = pbuf1;
	plg2.num = 0;
	plg2.points = pbuf2;
	ifstream ifs(fileName);
	if(!ifs)
		return FALSE;
	while(!ifs.eof())
	{	ifs.getline( buf,MAX_LINE_LENTH-1);
		line++;
		if(strcmp(buf,"VERTEX") == 0)
		{	ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			l = strtol( buf, &cc, 10 );
			if(l != 10)
				return FALSE;
			ifs.getline( buf,MAX_LINE_LENTH-1);
			x = strtod( buf, &cc);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			y = strtod( buf, &cc);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			ifs.getline( buf,MAX_LINE_LENTH-1);
			z = strtod( buf, &cc);
			line += 8;
			if(x == 0 && y == 0 && z == 0)
			{	ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p1 = strtol( buf, &cc, 10);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p2 = strtol( buf, &cc, 10);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				ifs.getline( buf,MAX_LINE_LENTH-1);
				p3 = strtol( buf, &cc, 10);
				line+=8;
				flag = 0;
				if(p1 > 0)
					flag |= 0x01;
				if(p2 > 0)
					flag |= 0x02;
				if(p3 > 0)
					flag |= 0x04;
				switch (flag)
				{	case 0x01:
						b1 = TRUE;
						break;
					case 0x04:
						
						b1 = FALSE;
						break;
					case 0x03:
						if(b1)
						{	errorLine = line;
							return FALSE;
						}
						b1 = FALSE;
						break;
					case 0x05:
						b1 = FALSE;
						break;
					case 0x06:
						b1 = FALSE;
						break;
					case 0x07:
						b1 = FALSE;
						break;
					default:
						return FALSE;
				}
				swc = TRUE;
			}
			else
			{	if(swc)
				{	swc = FALSE;
					base = p->topPos;
				}
				point.x = (float)x;
				point.y = (float)y;
				point.z = (float)z;
				p->addPoint(&point);
			}
		}
		if(ifs.bad())
			return FALSE;
	}
	return TRUE;
}*/