实验报告8(用OpenGL生成曲线).docVIP

实验八：用OpenGL生成曲线 实验目的： 一、理解Bézier曲线和B样条曲线的定义、性质及绘制算法。二、理解OpenGL中窗口坐标与世界坐标的映射关系。三、掌握OpenGL的Bézier曲线和NURBS曲线的绘制方法。文件一：StdAfx.cpp //?stdafx.cpp?:?source?file?that?includes?just?the?standard?includes//?OpenGL框架.pch?will?be?the?pre-compiled?header//?stdafx.obj?will?contain?the?pre-compiled?type?information #include?stdafx.h //?TODO:?reference?any?additional?headers?you?need?in?STDAFX.H//?and?not?in?this?file 文件二：StdAfx.h //?stdafx.h?:?include?file?for?standard?system?include?files,//??or?project?specific?include?files?that?are?used?frequently,?but//??????are?changed?infrequently// #if?!defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)#define?AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_ #if?_MSC_VER??1000#pragma?once#endif?//?_MSC_VER??1000 #define?WIN32_LEAN_AND_MEAN??//?Exclude?rarely-used?stuff?from?Windows?headers #include?windows.h #include?gl\gl.h??//?OpenGL32库的头文件#include?gl\glu.h??//?GLu32库的头文件#include?gl\glaux.h?//?GLaux库的头文件#pragma?comment(?lib,?winmm.lib)#pragma?comment(?lib,?opengl32.lib)?//?OpenGL32连接库#pragma?comment(?lib,?glu32.lib)??//?GLu32连接库#pragma?comment(?lib,?glaux.lib)??//?GLaux连接库 //?TODO:?reference?additional?headers?your?program?requires?here //{{AFX_INSERT_LOCATION}}//?Microsoft?Visual?C++?will?insert?additional?declarations?immediately?before?the?previous?line. #endif?//?!defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_) 文件三：bzcurve.cpp #include?stdafx.h void?myinit(void);void?CALLBACK?myReshape(GLsizei?w,?GLsizei?h);void?CALLBACK?display(void); GLfloat?ctrlpoints[4][3]?=?{???{?-4.0,?-4.0,?0.0?},?{?-2.0,?4.0,?0.0?},???{2.0,-4.0,0.0},{4.0,4.0,0.0}}; void?myinit(void){?glClearColor(0.0,?0.0,?0.0,?1.0);?glMap1f(GL_MAP1_VERTEX_3,?0.0,?1.0,?3,?4,?ctrlpoints[0][0]);?glEnable(GL_MAP1_VERTEX_3);?glShadeModel(GL_FLAT);} void?CALLBACK?display(void){?int?i; ?glClear(GL_COLOR_BUFFER_BIT);?glColor3f(1.0,?1.0,?1.0);?glBegin(GL_LINE_STRIP);?for?(i?=?0;?i?=?30;?i++)??