二次曲面的绘制

#include "stdafx.h"
#include <GL/glut.h>   
#include <math.h>    
/*声明四个二次曲面物体*/   
GLUquadricObj *quadObj1;   
GLUquadricObj *quadObj2;   
GLUquadricObj *quadObj3;   
GLUquadricObj *quadObj4;  
GLUquadricObj *quadObj5;
   
static float light_ambient[] = {0.1,0.1,0.1,1.0};  
static float light_diffuse[] = {0.5,1.0,1.0,1.0}; 
static float light_specular[]={0.5,1.0,1.0,1.0};  
static float light_position[] = {90.0,90.0,150.0,0.0};   
   
static float front_mat_shininess[] = {60.0};   
static float front_mat_specular[] = {0.2,0.2,0.2,1.0};   
static float front_mat_diffuse[] = {0.5,0.5,0.28,1.0};   
   
static float back_mat_shininess[] = {60.0};   
static float back_mat_specular[] = {0.5,0.5,0.2,1.0};   
static float back_mat_diffuse[] = {1.0,0.9,0.2,1.0};   
   
static float Imodel_ambient[] = {1.0,1.0,1.0,1.0};   
static float Imodel_twoside[] = {GL_TRUE};   
static float Imodel_oneside[] = {GL_FALSE};   
   
void myInit(void)   
{   
/*设置背景色*/   
glClearColor(1.0,1.0,1.0,1.0);   
   
glEnable(GL_DEPTH_TEST);   
glDepthFunc(GL_LEQUAL);   
   
/*设置光照*/   
glLightfv(GL_LIGHT0,GL_AMBIENT,light_ambient);    //设置环境光
glLightfv(GL_LIGHT0,GL_DIFFUSE,light_diffuse);    //设置漫射光成分
glLightfv(GL_LIGHT0,GL_POSITION,light_position);  //设置光源的位置
   
/*设置材质*/   
glMaterialfv(GL_FRONT,GL_DIFFUSE,front_mat_diffuse);   
glMaterialfv(GL_FRONT,GL_SPECULAR,front_mat_specular);   
glMaterialfv(GL_FRONT,GL_SHININESS,front_mat_shininess);   
   
glMaterialfv(GL_BACK,GL_DIFFUSE,back_mat_diffuse);   
glMaterialfv(GL_BACK,GL_SPECULAR,back_mat_specular);   
glMaterialfv(GL_BACK,GL_SHININESS,back_mat_shininess);   
   
/*设置光照模型参数*/   
glLightModelfv(GL_LIGHT_MODEL_AMBIENT,Imodel_ambient);   
glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE,Imodel_twoside);   
   
/*激活关照*/   
glEnable(GL_LIGHTING);   
glEnable(GL_LIGHT0);   
glShadeModel(GL_SMOOTH);    
}   
   
void myDisplay(void)   
{   
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);   
   
/*创建四个二次曲面物体*/   
quadObj1 = gluNewQuadric();   
quadObj2 = gluNewQuadric();   
quadObj3 = gluNewQuadric();   
quadObj4 = gluNewQuadric(); 
quadObj5 = gluNewQuadric();
   
/*绘制一个圆柱体*/   
glPushMatrix();   
gluQuadricDrawStyle(quadObj1,GLU_FILL);   
gluQuadricNormals(quadObj1,GL_FLAT);   
gluQuadricOrientation(quadObj1,GLU_INSIDE);   
gluQuadricTexture(quadObj1,GL_TRUE);   
   
glColor3f(1.0,1.0,0.0);   
glRotatef(30,1.0,0.0,0.0);   
glRotatef(40,0.0,1.0,0.0);   
gluCylinder(quadObj1,2.0,2.0,9.0,20.0,8.0);   
glPopMatrix();   
 
/*绘制一个圆锥*/
glPushMatrix();
gluQuadricDrawStyle(quadObj5,GLU_FILL);   
gluQuadricNormals(quadObj5,GL_FLAT);   
gluQuadricOrientation(quadObj5,GLU_INSIDE);   
gluQuadricTexture(quadObj5,GL_TRUE);   
//glColor3f(1.0,0.0,0.0); 
glRotatef(30,1.0,0.0,0.0);   
glRotatef(40,0.0,1.0,0.0);
gluQuadricDrawStyle(quadObj5,GLU_FILL);
glTranslatef(5.0,5.0,0.0);
gluCylinder(quadObj5,3.0,0.0,5.0,20.0,8.0);
glPopMatrix();


/*绘制一个球体*/   
glPushMatrix();   
gluQuadricDrawStyle(quadObj2,GLU_SILHOUETTE);   
glTranslatef(-5.0,-1.0,0.0);   
gluSphere(quadObj2,3.0,20.0,20.0);   
glPopMatrix();   
   
/*绘制一个圆盘*/   
glPushMatrix();   
gluQuadricDrawStyle(quadObj3,GLU_LINE);   
glTranslatef(-2.0,4.0,0.0);   
gluDisk(quadObj3,2.0,5.0,15.0,10.0);   
glPopMatrix();   
   
/*绘制一个部分圆盘*/   
glPushMatrix();   
gluQuadricDrawStyle(quadObj4,GLU_POINT);   
glTranslatef(-3.0,-7.0,0.0);   
gluPartialDisk(quadObj4,2.0,5.0,15.0,10.0,10.0,100.0);   
glPopMatrix();   
   
/*删除四个二次曲面物体对象*/   
gluDeleteQuadric(quadObj1);   
gluDeleteQuadric(quadObj2);   
gluDeleteQuadric(quadObj3);   
gluDeleteQuadric(quadObj4);  
gluDeleteQuadric(quadObj5);
glFlush();   
}   
   
void myReshape(int w,int h)   
{   
glViewport(0,0,(GLsizei)w,(GLsizei)h);   
glMatrixMode(GL_PROJECTION);   
glLoadIdentity();   
gluPerspective(45.0,(GLfloat)w/(GLfloat)h,1.0,50.0);   
glMatrixMode(GL_MODELVIEW);   
glLoadIdentity();   
glTranslatef(0.0,0.0,-25.0);   
}   
   
int main(int argc,char ** argv)   
{   
/*初始化*/   
glutInit(&argc,argv);   
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB|GLUT_DEPTH);   
glutInitWindowSize(400,400);   
glutInitWindowPosition(100,100);   
   
/*创建窗口*/   
glutCreateWindow(" DRAW QUADRIC OBJECTS ");   
   
/*绘制与显示*/   
myInit();   
glutReshapeFunc(myReshape);   
glutDisplayFunc(myDisplay);   
   
glutMainLoop();   
return 0;   

}