郭羽筆記week14

上節課的作業動起來：

使用透視效果來實現機器人的旋轉：

float eyeX=0, eyeY= 0, eyeZ= 2;

float centerX=0, centerY=0, centerZ=0;

float upX=0, upY=1, upZ=0;

float angle=0, dir=1;

bool flag = true;

 glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    gluPerspective(60,1,0.001,10000);

    glMatrixMode(GL_MODELVIEW);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

     angle+= 0.01;

    if(eyeY > 1) flag = true;

    if(eyeY < -1) flag = false;

    if(!flag)   eyeY += 0.01;

    else    eyeY -= 0.01;

    eyeX = sin(angle);

    eyeZ = cos(angle);

    glPushMatrix();

    gluLookAt(eyeX, eyeY, eyeZ,

              centerX, centerY, centerZ,

              upX, upY, upZ);

加入定時器：

void timer(int t)

{

    glutTimerFunc(100, timer, t+1);

     angle+= 0.1;

    if(eyeY > 1) flag = true;

    if(eyeY < -1) flag = false;

    if(!flag)   eyeY += 0.01;

    else    eyeY -= 0.01;

    eyeX = sin(angle);

    eyeZ = cos(angle);

    glutPostRedisplay();

}

這樣將隨時間變化的角度通過計時器進行了時間控制。

TRT：

glTranslatef(-0.14,0.19,-0.02);

            glRotatef(-angle *5, 0,0,1);

            glTranslatef(-0.01,-0.04,0);

            glmDraw(pmodel_arm_high_right, GLM_SMOOTH | GLM_MATERIAL);

            glutWireSphere(0.01,15,15);

            glPushMatrix();

                glTranslatef(-0.01,-0.05,0.05);

                glRotatef(-angle *5, 0,0,1);

                glTranslatef(-0.09,-0.15,0);

                glmDraw(pmodel_arm_low_right, GLM_SMOOTH | GLM_MATERIAL);

            glPopMatrix();