week12

#include <GL/glut.h>
#include <opencv/highgui.h>
#include <opencv/cv.h>
float angleX =0;

void myTexture()
{
 GLuint id;
 IplImage * img = cvLoadImage("body.jpg");
 cvCvtColor(img, img, CV_BGR2RGB);
 glEnable(GL_TEXTURE_2D);
 glGenTextures(1, &id);
 glBindTexture(GL_TEXTURE_2D, id);
 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_LINEAR);
 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_LINEAR);
 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
}
void display()
{
 glEnable(GL_DEPTH_TEST);
 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 glPushMatrix();
  glPushMatrix();//body
   glScalef(0.2, 0.5, 0.5);
   glBegin(GL_POLYGON);
    glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
    glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
    glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
    glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
   glEnd();
  glPopMatrix();
  glPushMatrix();//left hand
   glTranslatef(-0.1, 0, 0);
   glRotatef(angleX, 0,0,1);
   glTranslatef(0, 0.25, 0);
   glScalef(0.2, 0.5, 0.5);
   glBegin(GL_POLYGON);
    glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
    glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
    glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
    glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
   glEnd();
  glPopMatrix();
  glPushMatrix();//right hand
   glTranslatef( 0.1, 0, 0);
   glRotatef(-angleX, 0,0,1);
   glTranslatef(0, 0.25, 0);
   glScalef(0.2, 0.5, 0.5);
   glBegin(GL_POLYGON);
    glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
    glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
    glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
    glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
   glEnd();
  glPopMatrix();
  glPushMatrix();//left leg
   glTranslatef( -0.05, -0.25, 0);
   glRotatef(180-angleX, 0,0,1);
   glTranslatef(0, 0.25, 0);
   glScalef(0.2, 0.5, 0.5);
   glBegin(GL_POLYGON);
    glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
    glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
    glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
    glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
   glEnd();
  glPopMatrix();
  glPushMatrix();//right leg
   glTranslatef( 0.05, -0.25, 0);
   glRotatef(-(180-angleX), 0,0,1);
   glTranslatef(0, 0.25, 0);
   glScalef(0.2, 0.5, 0.5);
   glBegin(GL_POLYGON);
    glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
    glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
    glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
    glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
   glEnd();
  glPopMatrix();
 glPopMatrix();
 glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
 if(key=='1') angleX+=5;
 if(key=='2') angleX-=5;
 glutPostRedisplay();//請電腦重新畫一次畫面
}
int main()
{
 glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
 glutCreateWindow("week11");
 glutDisplayFunc(display);
 glutKeyboardFunc(keyboard);
 myTexture();

 glutMainLoop();
}

                                                                                                                                              

簡化後!!!!!!!!!!

#include <GL/glut.h>
#include <opencv/highgui.h>
#include <opencv/cv.h>
float angleX =0;

void myTexture()
{
GLuint id;
IplImage * img = cvLoadImage("imgBody.png");
cvCvtColor(img, img, CV_BGR2RGB);
glEnable(GL_TEXTURE_2D);
glGenTextures(1, &id);
glBindTexture(GL_TEXTURE_2D, id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
}
void myRect()//技巧1: 重覆的程式碼, 用函式拉出來, 就不用一直copy啦
{//函式就是 黑盒子 幫你做事情!
glPushMatrix();
glScalef(0.2, 0.5, 0.5);
glBegin(GL_POLYGON);
glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);
glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);
glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);
glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);
glEnd();
glPopMatrix();
}
void display()
{
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
myRect();//body//技巧1: 用函式, 哥就是帥!
glPushMatrix();//left hand
glTranslatef(-0.1, 0, 0);
glRotatef(angleX, 0,0,1);
glTranslatef(0, 0.25, 0);
myRect();//技巧1: 用函式, 哥就是帥!
glPopMatrix();
glPushMatrix();//right hand
glTranslatef( 0.1, 0, 0);
glRotatef(-angleX, 0,0,1);
glTranslatef(0, 0.25, 0);
myRect();//技巧1: 用函式, 哥就是帥!
glPopMatrix();
glPushMatrix();//left leg
glTranslatef( -0.05, -0.25, 0);
glRotatef(180-angleX, 0,0,1);
glTranslatef(0, 0.25, 0);
myRect();
glPushMatrix();//left foot
glTranslatef( 0, 0.25, 0);
glRotatef(30, 0,0,1);
glTranslatef(0, 0.15, 0);
myRect();
glPopMatrix();
glPopMatrix();
glPushMatrix();//right leg
glTranslatef( 0.05, -0.25, 0);
glRotatef(-(180-angleX), 0,0,1);
glTranslatef(0, 0.25, 0);
myRect();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
if(key=='1') angleX+=5;
if(key=='2') angleX-=5;
glutPostRedisplay();//請電腦重新畫一次畫面
}
int main()
{
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week11");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
myTexture();

glutMainLoop();
}