binhun-week03

 貼上10行程式碼

void mouse(int button , int state, int x,int y)

{

printf("Hello Mouse!\n");

}

glutMouseFunc(mouse)

glutDisplatFunc(display)

#include <GL/glut.h>
#include <stdio.h>
void mouse(int button , int state, int x,int y)

{

printf("Hello Mouse!\n");

}
void display(){
    glutSolidTeapot(0.3);
    glutSwapBuffers();
}
int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutCreateWindow("week02_color_teapot");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMainLoop();
}
點擊茶壺會印出hello mouse

 printf("%d %d %d %d\n",button,state,x,y);

 if(state==GLUT_DOWN) printf("glVertex2f(%d %d);\n",x,y);
印出座標


隨便點幾個點複製貼上

#include <GL/glut.h>
#include <stdio.h>
void mouse(int button , int state, int x,int y){
    ///printf("Hello Mouse!\n");
    ///printf("%d %d %d %d\n",button,state,x,y);
    if(state==GLUT_DOWN) printf("glVertex2f((%d-150)/150.0,-(%d-150)/150.0);\n",x,y);
}
void display(){
    glColor3f(1,1,1);
    glBegin(GL_POLYGON);
        glVertex2f((82-150)/150.0,-(108-150)/150.0);
        glVertex2f((132-150)/150.0,-(183-150)/150.0);
        glVertex2f((184-150)/150.0,-(198-150)/150.0);
        glVertex2f((221-150)/150.0,-(181-150)/150.0);
        glVertex2f((224-150)/150.0,-(105-150)/150.0);
        glVertex2f((198-150)/150.0,-(85-150)/150.0);
        glVertex2f((118-150)/150.0,-(75-150)/150.0);
        glVertex2f((68-150)/150.0,-(96-150)/150.0);
        glVertex2f((54-150)/150.0,-(108-150)/150.0);
    glEnd();
    glColor3f(1,1,0);
    glutSolidTeapot(0.3);
    glutSwapBuffers();
}
int main(int argc, char *argv[]){
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutCreateWindow("week02_color_teapot");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMainLoop();
}

開新檔案貼上今天程式碼

#include <GL/glut.h>
#include <stdio.h>
float teapotX=0,teapotY=0;
void mouse(int button , int state, int x,int y){
    teapotX = (x-150)/150.0;
    teapotY = -(y-150)/150.0;
}
void display(){
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glTranslatef(teapotX,teapotY,0);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
int main(int argc, char *argv[]){
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutCreateWindow("week02_color_teapot");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMainLoop();
}
點可讓茶壺移動

開新檔案複製貼上

增加float angle=0;

glRotatedf(angle,0,0,1);///對z軸轉動

#include <GL/glut.h>
#include <stdio.h>
float teapotX=0,teapotY=0;
float angle=0;
void mouse(int button , int state, int x,int y){
    teapotX = (x-150)/150.0;
    teapotY = -(y-150)/150.0;
}
void display(){
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        ///glTranslatef(teapotX,teapotY,0);
        glRotatef(angle,0,0,1);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x,int y){
    angle = x;
    display();
}
int main(int argc, char *argv[]){
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutCreateWindow("week02_color_teapot");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutMainLoop();
}
茶壺轉動
開新專案貼上程式碼

#include <GL/glut.h>
#include <stdio.h>
float teapotX=0,teapotY=0;
float angle=0;
void mouse(int button , int state, int x,int y){
    teapotX = (x-150)/150.0;
    teapotY = -(y-150)/150.0;
}
void display(){
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        ///glTranslatef(teapotX,teapotY,0);
        glRotatef(angle,0,0,1);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x,int y){
    angle = x;
    display();
}
void keyboard(unsigned char key,int x,int y){
    if(key=='e') method = 1;///轉動
    if(key=='w') method = 2;///移動
}
int main(int argc, char *argv[]){
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutCreateWindow("week02_color_teapot");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutKeyboardFunc(keyboard);
    glutMainLoop();
}