void Globe_Wireframe()
{
	GLint xc=100, yc=200, r=50;
	GLint i,n=50;
	for(i=0;i<n;i+=5)
	{
		Circle_draw(xc,yc+i,r-i);
	}
	for(i=0;i<n;i+=5)
	{
		Circle_draw(xc,yc-i,r-i);
	}

}
void Cylinder_draw()
{
	GLint xc=100, yc=100, r=50;
	GLint i,n=50;
	for(i=0;i<n;i+=3)
	{
	Circle_draw(xc,yc+i,r);
	}
}