小编WIl*_*obb的帖子

当我使用此代码绘制多维数据集时

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
gluLookAt(
x,    y,    z, 
x+xp, y+yp, z+zp,
0.0f, 1.0f, 0.0f);   
glBegin(GL_QUADS);            

glColor3f(0.0f,1.0f,0.0f);            
glVertex3f( 1.0f, 1.0f,-1.0f);        
glVertex3f(-1.0f, 1.0f,-1.0f);       
glVertex3f(-1.0f, 1.0f, 1.0f);       
glVertex3f( 1.0f, 1.0f, 1.0f);        

glColor3f(1.0f,0.5,0.0f);           
glVertex3f( 1.0f,-1.0f, 1.0f);        
glVertex3f(-1.0f,-1.0f, 1.0f);        
glVertex3f(-1.0f,-1.0f,-1.0f);       
glVertex3f( 1.0f,-1.0f,-1.0f);        

glColor3f(1.0f,0.0f,0.0f);            
glVertex3f( 1.0f, 1.0f, 1.0f);        
glVertex3f(-1.0f, 1.0f, 1.0f);       
glVertex3f(-1.0f,-1.0f, 1.0f);        
glVertex3f( 1.0f,-1.0f, 1.0f);        

glColor3f(1.0f,1.0f,0.0f);            
glVertex3f( 1.0f,-1.0f,-1.0f);        
glVertex3f(-1.0f,-1.0f,-1.0f);        
glVertex3f(-1.0f, 1.0f,-1.0f);        
glVertex3f( 1.0f, 1.0f,-1.0f);        

glColor3f(0.0f,0.0f,1.0f);            
glVertex3f(-1.0f, 1.0f, 1.0f);       
glVertex3f(-1.0f, 1.0f,-1.0f);        
glVertex3f(-1.0f,-1.0f,-1.0f);       
glVertex3f(-1.0f,-1.0f, 1.0f);        

glColor3f(1.0f,0.0f,1.0f);            
glVertex3f( 1.0f, 1.0f,-1.0f);        
glVertex3f( 1.0f, 1.0f, 1.0f);        
glVertex3f( 1.0f,-1.0f, 1.0f); …