week13
step01-1
1.新增專案
2.加入新教的程式碼(rect),glutInitWindowSize(600,600);可調整視窗大小
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT || GL_DEPTH_BUFFER_BIT);
glRectf(0.3,0.5,-0.3,-0.5);
glutSwapBuffers();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc(display);
glutMainLoop();
}
step01-2
1.加點色彩
2.準備好TRT程式碼
3.加上紅方塊
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT || GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色的
glRectf(0.3,0.5,-0.3,-0.5);
glPushMatrix();
///glTranslatef();///把手臂掛回身體
///glRotatef(angle,0,0,1);///旋轉
///glTranslatef(x2,y2,z2);///把旋轉中心放中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc(display);
glutMainLoop();
}
step01-3
1.把旋轉中心放在正中心
把(0.3,0.4)移動到(0,0)
glTranslatef(-0.3,-0.4,0);
2.移動45度,加角度float angle=45;,刪掉rotatef註解
3.移回正確位置
程式碼
#include <GL/glut.h>
float angle=45;
void display()
{
glClear(GL_COLOR_BUFFER_BIT || GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色的
glRectf(0.3,0.5,-0.3,-0.5);
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛回身體
glRotatef(angle,0,0,1);///旋轉
glTranslatef(-0.3,-0.4,0);///把旋轉中心放中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc(display);
glutMainLoop();
}
step2-1
1.要用mouse motion旋轉角度
程式碼
#include <GL/glut.h>
float angle=45,oldX=0;
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle+=(x-oldX);
oldX=x;
glutPostRedisplay();///請GLUT重劃畫面
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色
glRectf(0.3,0.5,-0.3,-0.5);///身體
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛在身上
glRotatef(angle,0,0,1);///對z軸旋轉
glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])//main()主函式 進階版
{
glutInit(&argc,argv);//把參數送給glutInit初始化
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
///glutInitWindowSize(600,600);
glutCreateWindow("week13_rect_TRT");//開GLUT視窗
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);//顯示用的函式
glutMainLoop();
}
step2-2
1.新開專案
2.新增第二個關節
///week13_rect_TRT_TRT
#include <GL/glut.h>
float angle=0,oldX=0;
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle+=(x-oldX);
oldX=x;
glutPostRedisplay();///請GLUT重劃畫面
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色
glRectf(0.3,0.5,-0.3,-0.5);///身體
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛在身上
glRotatef(angle,0,0,1);///對z軸旋轉
glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
///glTranslatef(x,y,z);
///glRotatef(angle,0,0,1);
///glTranslatef(0,1,10);
glColor3f(0,1,0);///綠色的
glRectf(0.7,0.5,1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])//main()主函式 進階版
{
glutInit(&argc,argv);//把參數送給glutInit初始化
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
///glutInitWindowSize(600,600);
glutCreateWindow("week13_rect_TRT");//開GLUT視窗
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);//顯示用的函式
glutMainLoop();
}

step2-3
程式碼
///week13_rect_TRT_TRT
#include <GL/glut.h>
float angle=0,oldX=0;
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle+=(x-oldX);
oldX=x;
glutPostRedisplay();///請GLUT重劃畫面
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色
glRectf(0.3,0.5,-0.3,-0.5);///身體
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛在身上
glRotatef(angle,0,0,1);///對z軸旋轉
glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
glTranslatef(0.7,0.4,0);///把手肘掛回去
glRotatef(angle,0,0,1);///旋轉
glTranslatef(-0.7,-0.4,0);
glColor3f(0,1,0);///綠色的
glRectf(0.7,0.5,1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])//main()主函式 進階版
{
glutInit(&argc,argv);//把參數送給glutInit初始化
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
///glutInitWindowSize(600,600);
glutCreateWindow("week13_rect_TRT");//開GLUT視窗
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);//顯示用的函式
glutMainLoop();
}

step03-1
1.開新專案 week13_rect_many_TRT
複製中間的程式碼
修改正負值
程式碼
///week13_rect_many_TRT
#include <GL/glut.h>
float angle=0,oldX=0;
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle+=(x-oldX);
oldX=x;
glutPostRedisplay();///請GLUT重劃畫面
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色
glRectf(0.3,0.5,-0.3,-0.5);///身體
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛在身上
glRotatef(angle,0,0,1);///對z軸旋轉
glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
glTranslatef(0.7,0.4,0);///把手肘掛回去
glRotatef(angle,0,0,1);///旋轉
glTranslatef(-0.7,-0.4,0);
glColor3f(0,1,0);///綠色的
glRectf(0.7,0.5,1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.4,0);///把手臂掛在身上
glRotatef(angle,0,0,1);///對z軸旋轉
glTranslatef(0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.7,0.3);
glPushMatrix();
glTranslatef(-0.7,0.4,0);///把手肘掛回去
glRotatef(angle,0,0,1);///旋轉
glTranslatef(0.7,-0.4,0);
glColor3f(0,1,0);///綠色的
glRectf(-0.7,0.5,-1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])//main()主函式 進階版
{
glutInit(&argc,argv);//把參數送給glutInit初始化
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
///glutInitWindowSize(600,600);
glutCreateWindow("week13_rect_TRT");//開GLUT視窗
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);//顯示用的函式
glutMainLoop();
}

step03-2
1.要多個角度float angle=0;
改成angle[20];
全部的angle都要改
很多關節要用keyboardfunc
後面要加glutKeyboardFunc(keyboard);
程式碼
///week13_rect_many_TRT
#include <GL/glut.h>
float angle[20],oldX=0;
int angleID=0;///0號關節,1號關節...
void keyboard(unsigned char key,int x ,int y){
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle[angleID]+=(x-oldX);
oldX=x;
glutPostRedisplay();///請GLUT重劃畫面
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色
glRectf(0.3,0.5,-0.3,-0.5);///身體
glPushMatrix();
glTranslatef(0.3,0.4,0);///把手臂掛在身上
glRotatef(angle[0],0,0,1);///對z軸旋轉
glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
glTranslatef(0.7,0.4,0);///把手肘掛回去
glRotatef(angle[1],0,0,1);///旋轉
glTranslatef(-0.7,-0.4,0);
glColor3f(0,1,0);///綠色的
glRectf(0.7,0.5,1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.4,0);///把手臂掛在身上
glRotatef(angle[2],0,0,1);///對z軸旋轉
glTranslatef(0.3,-0.4,0);///挑整手臂的旋轉中心
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.7,0.3);
glPushMatrix();
glTranslatef(-0.7,0.4,0);///把手肘掛回去
glRotatef(angle[3],0,0,1);///旋轉
glTranslatef(0.7,-0.4,0);
glColor3f(0,1,0);///綠色的
glRectf(-0.7,0.5,-1.0,0.3);///下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])//main()主函式 進階版
{
glutInit(&argc,argv);//把參數送給glutInit初始化
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
///glutInitWindowSize(600,600);
glutCreateWindow("week13_rect_TRT");//開GLUT視窗
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);//顯示用的函式
glutMainLoop();
}

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