2023電腦圖學二甲: ww-week14-切換關節-切換移動、旋轉-計時器、內插動作

1.計時器、內插動作

1-1.專案1:

先把freeglut再裝一次，小葉老師上課軟體 / freeglut檔案複製到桌面 / 將libfreeglut.a複製貼上後改成libglut32.a/codeblocks開啟新專案:week14-1_timer

#include <GL/glut.h>
float angle =0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();

}
void timer(int t)///1-1 你的timer函式,做對應動作
{
glutTimerFunc(500,timer,t+1);///1-1
angle += 90;///1-1增加90度
glutPostRedisplay();///1-1重畫畫面
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");

glutDisplayFunc(display);
glutTimerFunc(2000,timer,0);///1-1設定timer函式
glutMainLoop();
}

1-2.專案2:

開新專案:week14-2_timer_play/用keyboard()函式來控制開始

#include <GL/glut.h>
float angle =0;
void display()

{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void timer(int t)
{
glutTimerFunc(500,timer,t+1);
angle += 90;///1-1增加90度
glutPostRedisplay();
}
void keyboard(unsigned char key ,int x, int y)///1-2按下任何鍵開始播放
{
glutTimerFunc(0,timer,0);
}

int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");

glutDisplayFunc(display);
glutKeyboardFunc(keyboard);///1-2用keyboard()
///glutTimerFunc(2000,timer,0);
glutMainLoop();
}

2.切換移動、旋轉

2-1專案3:用excel畫出下圖表格/等等用程式寫

開新專案:week14-3_timer_alpha_interpolation/ 劃出動畫，按下去表示起點，任意鍵開始play/備份

※裡面增加mouse()來處理按下去、放開來的對應動作；motion()負責即時更新角度；timer()裡用100格的內插，所以t小於100時，持續設定下一次timer，等待的時間不要太久；用alpha來算角度的值

#include <GL/glut.h>
float angle =0,oldAngle=0,newAngle=0;///2-1
void display(){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void timer(int t){
if(t<100)glutTimerFunc(50,timer,t+1);///2-1在100之內,設定下一個鬧鐘
float alpha =t/100.0;///2-1 alpha介於0.00~1.00之間
angle = newAngle*alpha + (1-alpha)*oldAngle;///2-1內插公式
glutPostRedisplay();
}
void motion(int x,int y)///2-1

{
angle = x;///即時更新角度
glutPostRedisplay();///重畫畫面
}
void mouse(int botton,int state,int x,int y)///2-1

{
if(state==GLUT_DOWN) oldAngle=x;///按下去
if(state==GLUT_UP) newAngle=x;///放開來
}
void keyboard(unsigned char key ,int x, int y){
glutTimerFunc(0,timer,0);
}
int main(int argc, char *argv[]){
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutMouseFunc(mouse);///2-1按下去,表示起點
glutMotionFunc(motion);///2-1當mouse在motion時,即時更新畫面
glutKeyboardFunc(keyboard);
glutMainLoop();
}

3.切換關節

3-1.裝git,clone下我們的專案2023graphicsa

在codeblocks 開啟2023Grahhicsa 的Final_Project / file / open 開啟.cbp檔/加一個ID用來選擇部位選到的變紅色/save everything備份

#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head =NULL;
GLMmodel * uparmR =NULL;
GLMmodel * lowarmR =NULL;
GLMmodel * body =NULL;
int show[4]={1,1,1,1};///week14 3-1
int ID = 0;///week14 3-1 //0頭 1身體 2上手臂 3下手臂
void keyboard(unsigned char key,int x, int y){
if(key=='0') ID = 0;///week14 3-1
if(key=='1') ID = 1;///week14 3-1
if(key=='2') ID = 2;///week14 3-1
if(key=='3') ID = 3;///week14 3-1
///if(key=='0') show[0] = !show[0];
///if(key=='1') show[1] = !show[1];
///if(key=='2') show[2] = !show[2];
///if(key=='3') show[3] = !show[3];
glutPostRedisplay();
}
FILE * fout=NULL;
FILE * fin =NULL;
float teapotX=0,teapotY=0;
float angle=0,angle2=0,angle3=0;
void display(){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(0.2,0.2,0.2);
if(body==NULL){
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");
uparmR = glmReadOBJ("model/uparmR.obj");
lowarmR = glmReadOBJ("model/lowarmR.obj");
}
if(ID==0)glColor3f(1,0,0);///week14 3-1
else glColor3f(1,1,1);///week14 3-1
if(show[0]) glmDraw(body, GLM_MATERIAL);
if(ID==1)glColor3f(1,0,0);///week14 3-1
else glColor3f(1,1,1);///week14 3-1
if(show[1]) glmDraw(head, GLM_MATERIAL);
glPushMatrix();
glTranslatef(teapotX,teapotY,0);
if(ID==2)glColor3f(1,0,0);///week14 3-1
else glColor3f(1,1,1);///week14 3-1
if(show[2]) glmDraw(uparmR, GLM_MATERIAL);
glPopMatrix();
if(ID==3)glColor3f(1,0,0);///week14 3-1
else glColor3f(1,1,1);///week14 3-1
if(show[3]) glmDraw(lowarmR, GLM_MATERIAL);
glPopMatrix();
glutSwapBuffers();
}
int oldX=0,oldY=0;
void motion (int x,int y){
teapotX += (x-oldX)/150.0;
teapotY-= (y-oldY)/150.0;
oldX = x;
oldY = y;
printf("glTranslatef(%f,%f,0);\n",teapotX,teapotY);
glutPostRedisplay();
}
void mouse(int button,int state,int x,int y){
if(state==GLUT_DOWN){
oldX = x;///week13-4teapotX = (x-150)/150.0;
oldY = y;///week13-4teapotY = (150-y)/150.0;
angle =x;
///if(fout==NULL)fout =fopen("file4.txt","w");week12
///fprintf(fout,"%f %f\n",teapotX,teapotY);
}
display();
}
int main(int argc, char *argv[]){
glutInit(&argc, argv);
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}

3-2切換移動、旋轉:建立一個Teapot當中心點/

先移動到中心點/

複製移動座標，貼回程式碼，再加入TRT讓上手臂可以旋轉並掛回去身體/

/開啟下手臂的顯示，移動到中心點後複製座標，並且加入TRT(外層上手臂的旋轉可以先關閉)

#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head =NULL;
GLMmodel * uparmR =NULL;
GLMmodel * lowarmR =NULL;
GLMmodel * body =NULL;
int show[4]={1,1,1,1};///week14 3-2
int ID = 3;///week14 3-2 //選擇機關:0頭 1身體 2上手臂 3下手臂
void keyboard(unsigned char key,int x, int y){
if(key=='0') ID = 0;
if(key=='1') ID = 1;
if(key=='2') ID = 2;
if(key=='3') ID = 3;
glutPostRedisplay();
}
FILE * fout=NULL;
FILE * fin =NULL;
float teapotX=0,teapotY=0;
float angle=0,angle2=0,angle3=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(0.2,0.2,0.2);
if(body==NULL){
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");
uparmR = glmReadOBJ("model/uparmR.obj");
lowarmR = glmReadOBJ("model/lowarmR.obj");
}
if(ID==0)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
if(ID==1)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[1]) glmDraw(body, GLM_MATERIAL);

glPushMatrix();
glTranslatef(-1.200356,+0.466667,0);///week14-3-2
//glTranslatef(teapotX,teapotY,0);用來找移動值

glRotatef(angle,0,0,1);///week14-3-2 TRT建出來
glTranslatef(1.200356,-0.466667,0);///week14-3-2
if(ID==2)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[2]) glmDraw(uparmR, GLM_MATERIAL);

glPushMatrix();
glTranslatef(-1.946666,0.126667,0);///week14-3-3
glRotatef(angle,0,0,1);///week14-3-2 TRT建出來
glTranslatef(1.946666,-0.126667,0);///week14-3-2
if(ID==3)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[3]) glmDraw(lowarmR, GLM_MATERIAL);
glPopMatrix();
glPopMatrix();

glPopMatrix();

glColor3f(0,1,0);///week14-3-2放個小茶壺在中心當參考點
glutSolidTeapot(0.02);///week14-3-2
glutSwapBuffers();
}
int oldX=0,oldY=0;
void motion (int x,int y){
teapotX += (x-oldX)/150.0;
teapotY-= (y-oldY)/150.0;
oldX = x;
oldY = y;
angle= x;///week14-3-2旋轉用
printf("glTranslatef(%f,%f,0);\n",teapotX,teapotY);
glutPostRedisplay();
}
void mouse(int button,int state,int x,int y)
{
if(state==GLUT_DOWN){
oldX = x;
oldY = y;
angle =x;
}
display();
}
//void keyboard(unsigned char key ,int x,int y)///2keyboard函式
//{
// if(fin==NULL){///2如果檔案還沒fopen(),就開他
// fclose(fout);///2前面的mouse會開fout 指標,所以要關掉
// fin = fopen("file4.txt","r");///2開檔
// }
// fscanf(fin,"%f %f",&teapotX,&teapotY);///2讀檔
// display();///2重畫畫面
//}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");

glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}

git指令

cd desktop

git clone https://github.com/你的帳號/2023graphicsa

cd 2023graphicsa

加入檔案

git add .

git status

git config --global user.email "jsyeh@mail.mcu.edu.tw"

git config --global user.name "jsyeh"

git commit -m "week10"

git push

2023電腦圖學二甲

2023年5月17日星期三

ww-week14-切換關節-切換移動、旋轉-計時器、內插動作

1.計時器、內插動作

2.切換移動、旋轉

3.切換關節

沒有留言:

張貼留言

2023年5月17日 星期三

ww-week14-切換關節-切換移動、旋轉-計時器、內插動作

1.計時器、內插動作

2.切換移動、旋轉

3.切換關節

沒有留言:

張貼留言

2023年5月17日星期三