week03

 week03

下載windows及data檔案，解壓縮後將data丟到windows資料夾

執行transformation.exe

叫出茶壺，並更改位置

#include <GL/glut.h>

void display()

{

        glPushMatrix();

        glTranslatef(0.5,0,0);

        glutSolidTeapot(0.3);

        glPopMatrix();

        glutSwapBuffers();

}

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

{

    glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("week03");

glutDisplayFunc(display);

glutMainLoop();

}

新增使用滑鼠控制座標的程式碼

#include <GL/glut.h>

void display()

{

        glPushMatrix();

        glTranslatef(0.5,0,0);

        glutSolidTeapot(0.3);

        glPopMatrix();

        glutSwapBuffers();

}

#include <stdio.h>

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

{

    printf("%d %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();

}

新增使用滑鼠控制位置的程式碼

#include <GL/glut.h>

float X=0,Y=0;

void display()

{

        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

        glPushMatrix();

        glTranslatef(X,Y,0);

        glutSolidTeapot(0.3);

        glPopMatrix();

        glutSwapBuffers();

}

#include <stdio.h>

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

{

    X=(x-150)/150.0;

    Y=-(y-150)/150.0;

}

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

{

    glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("week03");

glutDisplayFunc(display);

glutMouseFunc(mouse);

glutMainLoop();

}

使用程式碼用鼠標點出圖形

#include <GL/glut.h>

#include <stdio.h>

void display()

{

      glColor3f(0,1,0);  ///上色-

    glBegin(GL_POLYGON);  實心圖案

    glVertex2f(-0.420, 0.328);

    glVertex2f(-0.416, 0.288);

    glVertex2f(-0.416, 0.244);

    glVertex2f(-0.348, 0.236);

    glVertex2f(-0.292, 0.224);

    glVertex2f(-0.252, 0.220);

    glVertex2f(-0.236, 0.244);

    glVertex2f(-0.244, 0.300);

    glVertex2f(-0.244, 0.380);

    glVertex2f(-0.352, 0.388);

    glVertex2f(-0.360, 0.388);

    glVertex2f(-0.420, 0.388);

    glVertex2f(-0.432, 0.388);

    glEnd();

     glBegin(GL_POLYGON);

    glVertex2f(0.084, 0.384);

    glVertex2f(0.088, 0.328);

    glVertex2f(0.100, 0.256);

    glVertex2f(0.144, 0.180);

    glVertex2f(0.228, 0.176);

    glVertex2f(0.324, 0.176);

    glVertex2f(0.368, 0.176);

    glVertex2f(0.376, 0.324);

    glVertex2f(0.388, 0.360);

    glVertex2f(0.392, 0.372);

    glVertex2f(0.376, 0.372);

    glVertex2f(0.224, 0.376);

    glVertex2f(0.164, 0.376);

    glEnd();

    glBegin(GL_POLYGON);

    glVertex2f(-0.160, -0.144);

    glVertex2f(-0.168, -0.188);

    glVertex2f(-0.160, -0.240);

    glVertex2f(-0.140, -0.148);

    glVertex2f(-0.052, -0.144);

    glVertex2f(0.024, -0.156);

    glVertex2f(0.068, -0.160);

    glVertex2f(0.080, -0.248);

    glVertex2f(0.080, -0.264);

    glVertex2f(0.124, -0.268);

    glVertex2f(0.248, -0.296);

    glVertex2f(0.276, -0.312);

    glVertex2f(0.288, -0.408);

    glVertex2f(0.284, -0.484);

    glVertex2f(0.200, -0.500);

    glVertex2f(0.052, -0.524);

    glVertex2f(-0.260, -0.516);

    glVertex2f(-0.292, -0.516);

    glVertex2f(-0.360, -0.504);

    glVertex2f(-0.416, -0.364);

    glVertex2f(-0.416, -0.292);

    glVertex2f(-0.388, -0.248);

    glVertex2f(-0.168, -0.244);

    glVertex2f(-0.168, -0.244);

    glEnd();

    glBegin(GL_LINE_LOOP); ///虛線圖案

      glVertex2f(-0.492, 0.568);

    glVertex2f(-0.584, 0.188);

    glVertex2f(-0.592, 0.072);

    glVertex2f(-0.604, -0.076);

    glVertex2f(-0.604, -0.196);

    glVertex2f(-0.600, -0.324);

    glVertex2f(-0.600, -0.496);

    glVertex2f(-0.516, -0.604);

    glVertex2f(-0.376, -0.596);

    glVertex2f(-0.216, -0.596);

    glVertex2f(-0.080, -0.596);

    glVertex2f(0.088, -0.596);

    glVertex2f(0.304, -0.584);

    glVertex2f(0.424, -0.584);

    glVertex2f(0.508, -0.552);

    glVertex2f(0.508, -0.360);

    glVertex2f(0.508, -0.228);

    glVertex2f(0.508, -0.080);

    glVertex2f(0.480, 0.156);

    glVertex2f(0.468, 0.384);

    glVertex2f(0.456, 0.568);

    glVertex2f(0.432, 0.568);

    glVertex2f(0.280, 0.592);

    glVertex2f(0.164, 0.604);

    glVertex2f(0.020, 0.604);

    glVertex2f(-0.152, 0.604);

    glVertex2f(-0.284, 0.612);

    glVertex2f(-0.368, 0.620);

    glVertex2f(-0.544, 0.620);

    glVertex2f(-0.556, 0.620);

    glEnd();

    glutSwapBuffers();

}

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

{

    float X = (x-250)/250.0;

    float Y = -(y-250)/250.0;

    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);

    glutInitWindowSize(500,500);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}