2022電腦圖學二甲: 09160216

2022年6月7日星期二

諺哥的電腦圖學筆記week16

諺哥電腦圖學筆記week15

WEEK15

Step01-1

要播出聲音要先設定

Setting=>Compiler=>Linker settings=>winmm

Step02-1

Step02-2

copy上週程式碼week14_angles_fprintf_fscanf

///week15修改自week14_angles_fprintf
	#include <GL/glut.h>
	#include <stdio.h>
	float angle[20],oldX=0;
	int angleID=0;///0號關節,1號關節...
	FILE * fout = NULL, * fin = NULL;
	void myWrite()
	{
	if(fout==NULL)
	fout=fopen("file.txt","w+");
	for(int i=0; i<20; i++)
	{
	printf("%.1f",angle[i]);///小黑印出來
	fprintf(fout, "%.1f ", angle[i]); ///檔案印出來
	}
	printf("\n");
	fprintf(fout,"\n");
	}
	void myRead()
	{
	if(fout != NULL){
	fclose(fout);
	fout=NULL;
	}
	if( fin == NULL ) fin = fopen("file.txt", "r");
	for(int i=0 ; i<20 ; i++){
	fscanf(fin, "%f",&angle[i]);
	}
	glutPostRedisplay();
	}
	void keyboard(unsigned char key,int x,int y)
	{
	if(key=='s') myWrite();///調好動作才，save存檔
	if(key=='r') myRead();
	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);
	///myWrite();
	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("week15_angles_TRT");///開GLUT視窗
	glutKeyboardFunc(keyboard);
	glutMouseFunc(mouse);
	glutMotionFunc(motion);
	glutDisplayFunc(display);///顯示用的函式

	glutMainLoop();
	} Step03 機器人擺動做改file.txt的工作執行目錄: 用notepad++打開專案裡最長的檔案，更改working_dir