10160863-week03

 week03

step03-1

https://jsyeh.org/3dcg10/(下載)

-data data.zip

-win32 window.zip

-git32.dll

解壓縮

-win32 window.zip =>下載\windows\Transformation.exe

-git32.dll =>下載\windows\data\很多模型檔

step01-2

#include <GL/glut.h>

void display()

{

    glPushMatrix();///備份矩陣

        glTranslatef(0.5,0,0);

        glutSolidTeapot(0.3);

    glPopMatrix();///還原矩陣

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMainLoop();

}

step02-1

#include <GL/glut.h>

void display()

{

    glPushMatrix();///備份矩陣

        glTranslatef(0.5,0,0);

        glutSolidTeapot(0.3);

    glPopMatrix();///還原矩陣

    glutSwapBuffers();

}

#include <stdio.h>

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

{

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

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

step02-2

#include <GL/glut.h>

float X=0, Y=0;///利用global變數,在函式之間傳值(大寫的)

void display()

{

    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();///備份矩陣

        glTranslatef(X,Y,0);

        glutSolidTeapot(0.3);

    glPopMatrix();///還原矩陣

    glutSwapBuffers();

}

#include <stdio.h>

void mouse (int button,int state,int x,int y)///小寫的

{

    X = (x-150)/150.0;

    Y = -(y-150)/150.0;///口訣:減一半,除一半,y負號

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

step03-1

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBegin( GL_POLYGON);

  glVertex2f(0.213, 0.747);

  glVertex2f(0.020, 0.693);

  glVertex2f(0.000, 0.667);

  glVertex2f(-0.120, 0.587);

  glVertex2f(-0.227, 0.460);

  glVertex2f(-0.247, 0.393);

  glVertex2f(-0.293, 0.293);

  glVertex2f(-0.300, 0.133);

  glVertex2f(-0.300, -0.013);

  glVertex2f(-0.293, -0.120);

  glVertex2f(-0.200, -0.287);

  glVertex2f(-0.060, -0.440);

  glVertex2f(0.033, -0.547);

  glVertex2f(0.200, -0.633);

  glVertex2f(0.327, -0.647);

  glVertex2f(0.413, -0.660);

  glVertex2f(0.467, -0.660);

  glVertex2f(0.493, -0.660);

  glVertex2f(0.527, -0.660);

  glVertex2f(0.507, -0.627);

  glVertex2f(0.427, -0.600);

  glVertex2f(0.367, -0.533);

  glVertex2f(0.293, -0.373);

  glVertex2f(0.207, -0.087);

  glVertex2f(0.200, 0.100);

  glVertex2f(0.213, 0.280);

  glVertex2f(0.280, 0.367);

  glVertex2f(0.427, 0.507);

  glVertex2f(0.473, 0.627);

  glVertex2f(0.567, 0.680);

  glVertex2f(0.573, 0.700);

  glVertex2f(0.553, 0.760);

  glVertex2f(0.507, 0.773);

  glVertex2f(0.387, 0.793);

  glVertex2f(0.300, 0.787);

  glVertex2f(0.213, 0.747);

  glVertex2f(0.087, 0.613);

  glVertex2f(-0.013, 0.580);

  glVertex2f(-0.060, 0.560);

  glVertex2f(-0.080, 0.447);

    glEnd();

    glutSwapBuffers();

}

void mouse (int button,int state,int x,int y)///小寫的

{

    float X = (x-150)/150.0;

    float Y = -(y-150)/150.0;///口訣:減一半,除一半,y負號

    if(state==GLUT_DOWN){

        printf("  glVertex2f(%.3f, %.3f);\n", X, Y);

    }

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}