#include
#include
#include

#define?MAX?20
GLfloat?ctrlpoints[MAX][3]={0.0};
//GLfloat?ctrlpoints[3][3]={{-4.0-2.00.0}{-1.00.20.0}{4.0-2.30.0}};
int?n;
void?ctrlpointsInput（void）
{
	int?ij;
	printf（“Please?input?the?numbers?of?the?control?points:n=?“）;
	scanf（“%d“&n）;
	printf（“Please?input?the?control?points:?\n“）;
	for（i=0;i	{
		for（j=0;j<=2;j++）
			scanf（“%f“&ctrlpoints[i][j]）;
	}
}

void?myInit（void）
{???
	ctrlpointsInput（）;
	glClearColor（0.00.00.00.0）;?
	glShadeModel（GL_FLAT）;??
}

void?drawline（void）
{
	glMap1f（GL_MAP1_VERTEX_30.01.03n&ctrlpoints[0][0]）;
	glEnable（GL_MAP1_VERTEX_3）;
	glColor3f（1.01.01.0）;???
	glBegin（GL_LINE_STRIP）;?????
	for（int?j=0;j<=60;j++）??????
		glEvalCoord1f（（GLfloat）j/60.0）;?
	glEnd（）;?
}

/*void?redmark（int?e）
{
	int?j=0;
	glPointSize（5.0）;
	glBegin（GL_POINTS）;
	while（j!=e）?j++;	
	glColor3f（1.00.00.0）;
	glVertex3fv（&ctrlpoints[j][0]）;
	glEnd（）;
	glFlush（）;
}*/
void?redmark（int?e）
{
	glPointSize（5.0）;
	glBegin（GL_POINTS）;
	glColor3f（1.01.00.0）;
	for（int?j=0;j	{
		glColor3f（1.01.00.0）;
		glVertex3fv（&ctrlpoints[j][0]）;
	}
	for（j=e+1;j	{
		glVertex3fv（&ctrlpoints[j][0]）;
	}
	glColor3f（1.00.00.0）;
	glVertex3fv（&ctrlpoints[e][0]）;	
	glEnd（）;
	glFlush（）;
}

void?myDisplay（void）
{??
	int?i;
????glClear（GL_COLOR_BUFFER_BIT）;?
	drawline（）;
	glPointSize（5.0）;??
	glColor3f（1.01.00.0）;?
	glBegin（GL_POINTS）;?????
	for（i=0;i		glVertex3fv（&ctrlpoints[i][0]）;
	glEnd（）;??
	glFlush（）;
}?

void?reshape（int?wint?h）
{??
	glViewport（00（GLsizei）w（GLsizei）h）;?
	glMatrixMode（GL_PROJECTION）;?
	glLoadIdentity（）;?
	if（w<=h）???
		glOrtho（-5.05.0-5.0*（GLfloat）h/（GLfloat）w5.0*（GLfloat）h/（GLfloat）w-5.05.0）;?
	else???
		glOrtho（-5.0*（GLfloat）w/（GLfloat）h5.0*（GLfloat）w/（GLfloat）h-5.05.0-5.05.0）;?
	glMatrixMode（GL_MODELVIEW）;??
	glLoadIdentity（）;
}?

int?t=0;
void?myKeyboard（unsigned?char?keyint?x?int?y）
{
	switch（key）
	{
	case‘j‘:
		redmark（（t+1）%n）;
		t=t+1;
		break;
	case‘k‘:
		redmark（（t-1）%n）;
		t=t-1;
		break;
????case‘e‘:
		exit（0）;
	???	break;
	case‘w‘:
		ctrlpoints[t%n][1]+=0.1;
		drawline（）;
		glutPostRedisplay（）;
		break;	
	case‘s‘:
		ctrlpoints[t%n][1]-=0.1;
		drawline（）;
		glutPostRedisplay（）;
		break;
	case‘a(chǎn)‘:
		ctrlpoints[t%n][0]-=0.1;
		drawline（）;
		glutPostRedisplay（）;
		break;
	case‘d‘:
		ctrlpoints[t%n][0]+=0.1;
		drawline（）;
		glutPostRedisplay（）;
		break;
?????	default:
?????		break;
		}
}

int?main（int?argcchar**argv）
{??
	glutInit（&argcargv）;
	glutInitDisplayMode（GLUT_SINGLE|GLUT_RGB）;
	glutInitWindowSize（500500）;
	glutInitWindowPosition（100100）;
	glutCreateWindow（“貝塞爾曲線的繪制“）;
	myInit（）;
	glutDisplayFunc（myDisplay）;
	glutReshapeFunc（reshape）;
????glutKeyboardFunc（myKeyboard）;
	glutMainLoop（）;
	return?0;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????4344??2012-12-09?15:19??project-02周游2010213445\beziercurve\beziercurve.dsp

?????文件????????530??2012-12-09?14:20??project-02周游2010213445\beziercurve\beziercurve.dsw

?????文件??????33792??2012-12-09?15:19??project-02周游2010213445\beziercurve\beziercurve.ncb

?????文件??????48640??2012-12-09?15:19??project-02周游2010213445\beziercurve\beziercurve.opt

?????文件???????1049??2012-12-09?14:46??project-02周游2010213445\beziercurve\beziercurve.plg

?????文件???????2949??2012-12-11?15:08??project-02周游2010213445\beziercurve\beziervurve.cpp

?????文件???????3461??2012-12-15?15:39??project-02周游2010213445\beziercurve\beziervurve.dsp

?????文件????????530??2012-12-15?15:39??project-02周游2010213445\beziercurve\beziervurve.dsw

?????文件??????41984??2012-12-15?15:39??project-02周游2010213445\beziercurve\beziervurve.ncb

?????文件??????48640??2012-12-15?15:39??project-02周游2010213445\beziercurve\beziervurve.opt

?????文件????????779??2012-12-15?15:39??project-02周游2010213445\beziercurve\beziervurve.plg

?????文件?????192582??2012-12-09?14:36??project-02周游2010213445\beziercurve\Debug\beziercurve.exe

?????文件?????229924??2012-12-09?14:36??project-02周游2010213445\beziercurve\Debug\beziercurve.ilk

?????文件?????340124??2012-12-09?14:20??project-02周游2010213445\beziercurve\Debug\beziercurve.pch

?????文件?????451584??2012-12-09?14:36??project-02周游2010213445\beziercurve\Debug\beziercurve.pdb

?????文件?????208966??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\beziervurve.exe

?????文件?????337992??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\beziervurve.ilk

?????文件??????14593??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\beziervurve.obj

?????文件?????353580??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\beziervurve.pch

?????文件?????492544??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\beziervurve.pdb

?????文件??????41984??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\vc60.idb

?????文件??????45056??2012-12-15?15:39??project-02周游2010213445\beziercurve\Debug\vc60.pdb

?????文件???????2949??2012-12-27?18:46??project-02周游2010213445\chengxu.txt

?????文件????1136640??2012-12-28?15:41??project-02周游2010213445\OPENGL報(bào)告T.ppt

?????文件??????33792??2012-12-30?19:59??project-02周游2010213445\曲線\Debug\vc60.idb

?????文件??????53248??2012-12-30?19:55??project-02周游2010213445\曲線\Debug\vc60.pdb

?????文件?????204856??2012-12-30?19:55??project-02周游2010213445\曲線\Debug\曲線.exe

?????文件?????269792??2012-12-30?19:55??project-02周游2010213445\曲線\Debug\曲線.ilk

?????文件??????16224??2012-12-30?19:55??project-02周游2010213445\曲線\Debug\曲線.obj

?????文件?????339984??2012-12-30?19:51??project-02周游2010213445\曲線\Debug\曲線.pch

............此處省略16個(gè)文件信息