曲线曲面0505.docVIP

下载本文档

15
0
约 8页
2016-10-19 发布于重庆
举报
版权申诉

曲线曲面0505.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

曲线曲面0505

#include windows.h #include gl/glut.h #include math.h GLint nNumPoints=4;//控制点个数 /*存储控制点*/ GLfloat ctrlPoints[4][3]={{-4.0f,-2.0f,0.0f},{-2.0f,2.0f,0.0f},{2.0f,3.0f,0.0f},{4.0f,-1.0f,0.0f}}; void myinit(void) { glClearColor(1.0f,1.0f,1.0f,1.0f); /*一维求值器：定义Bezier曲线方程*/ glMap1f(GL_MAP1_VERTEX_3,0.0,1.0,3,nNumPoints,ctrlPoints[0][0]); glEnable(GL_MAP1_VERTEX_3); glShadeModel(GL_FLAT); } void display(void) { GLint i; glClear(GL_COLOR_BUFFER_BIT); /*画Bezier曲线*/ glColor3f(0.0,0.0,0.0); glBegin(GL_LINE_STRIP); for (i=0;i=100;i++) glEvalCoord1f((GLfloat)i/100.0); glEnd(); /*画控制点*/ glColor3f(0.0,0.0,1.0); glPointSize(5.0f); glBegin(GL_POINTS); for (i=0;inNumPoints;i++) glVertex3fv(ctrlPoints[i][0]); glEnd(); /*画控制多边形*/ glBegin(GL_LINE_STRIP); for (i=0;inNumPoints;i++) glVertex3fv(ctrlPoints[i][0]); glEnd(); glFlush(); } void myReshape(int w,int h) {glViewport(0,0,w,h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); if(w=h) glOrtho(-5.0,5.0,-5.0*(GLfloat)h/(GLfloat)w,5.0*(GLfloat)h/(GLfloat)w,-5.0,5.0); else glOrtho(-5.0*(GLfloat)w/(GLfloat)h,5.0*(GLfloat)w/(GLfloat)h,-5.0,5.0,-5.0,5.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } int main(int argc,char **argv) { glutInit(argc,argv); glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); glutInitWindowSize(200,200); glutInitWindowPosition(100,100); glutCreateWindow(colorcube); myinit(); glutDisplayFunc(display); glutReshapeFunc(myReshape); glutMainLoop(); return 0; } 控制点4个，坐标 {-4.0f,-3.0f,0.0f},{-2.0f,3.0f,0.0f},{2.0f,-4.0f,0.0f},{3.0f,3.5f,0.0f} 图形控制点5个，坐标 {-4.0f,-3.0f,0.0f},{-2.0f,3.0f,0.0f},{2.0f,-4.0f,0.0f},{3.0f,3.5f,0.0f},{-4.0f,-2.0f,0.0f} 图形控制点5个，坐标 {-4.0f,-3.0f,0.0f},{-2.0f,3.0f,0.0f},{2.0f,-4.0f,0.0f},{3.0f,3.5f,0.0f},{-4.0f,-2.0f,0.0f} glMap1f(GL_MAP1_VERTEX_3,0.0,1.0,4,nNumPoints,ctrlPoints[0][0]); 图形控制点5个，坐标 {-4.0f,-3.0f,0.0f},{-2.0f,3.0f,0.0f},{2.0f,-4.0f,0.0f},{3.0f,3.5f,0.0f},{-4.0f,-2.0f,0.0f} glMap1f(GL_MAP1_VERTEX_3,0.0,1.0,2,nNumPoints,ctrlPoints[0][0]); 图形控制点4个，坐标 {-4.0f,-3.