《计算机图形学》实验报告4

《计算机图形学》实验报告（4）学号：10131656姓名：邱家辉班级：计131成绩：实验名称：三视图与旋转实验地点：信息楼215所使用的工具软件及环境：C++.NET、OpenGL一、实验目的：1、用OpenGL实现绘制三视图2、用OpenGL实现物体的旋转二、实验思考：#include"stdafx.h"#include"stdlib.h"#include<GL\glut.h>#include<vector>#include<iostream>usingnamespacestd;constintMaxNum=200;vector<int>Face[10];intwinWidth=1000,winHeight=600;intPointNum=4,FaceNum=4;doubleMatrix[4][4]={{1,0,0,0},{0,1,0,0},{0,0,1,0},{500,300,300,2}};doubleXOZ[4][4]={{1,0,0,0},{0,0,0,0},{0,0,1,0},{800,0,600,1}};doubleXOY[4][4]={{1,0,0,0},{0,0,-1,0},{0,0,0,0},{800,0,-50,1}};doubleYOZ[4][4]={{0,0,0,0},{-1,0,0,0},{0,0,1,0},{-150,0,600,1}};doubleDD=-400,NN=-200,MM=0,LL=-400;doubleYOY[4][4]={{1,0,0,0},{0,1,0,0},{0,0,0,1/DD},{LL,MM,0,1+NN/DD}};doubleRotate[4][4]={{1,0,0,0},{0,cos(0.5),sin(0.5),0},{0,sin(-0.5),cos(0.5),0},{0,0,0,1}};doubleRotateR[4][4]={{1,0,0,0},{0,cos(-0.5),sin(-0.5),0},{0,sin(0.5),cos(-0.5),0},{0,0,0,1}};structDefPoint{ doublex,y,z,tag;}Point[MaxNum],TPoint[MaxNum],XOZPoint[MaxNum],XOYPoint[MaxNum],YOZPoint[MaxNum],YOYPoint[MaxNum];voidThPmidInit(){ PointNum=4; Point[0].x=400,Point[0].y=0,Point[0].z=0,Point[0].tag=1; Point[1].x=400,Point[1].y=200,Point[1].z=0,Point[1].tag=1; Point[2].x=0,Point[2].y=200,Point[2].z=0,Point[2].tag=1; Point[3].x=200,Point[3].y=200,Point[3].z=200,Point[3].tag=1; FaceNum=4; Face[0].push_back(0);Face[0].push_back(1);Face[0].push_back(2); Face[1].push_back(0);Face[1].push_back(1);Face[1].push_back(3); Face[2].push_back(0);Face[2].push_back(2);Face[2].push_back(3); Face[3].push_back(1);Face[3].push_back(2);Face[3].push_back(3);}voidTransForm(DefPointNewPoint[],DefPointOldPoint[],doubleTran[4][4]){ for(inti=0;i<PointNum;i++){ doubletx=OldPoint[i].x,ty=OldPoint[i].y, tz=OldPoint[i].z,ttag=OldPoint[i].tag; NewPoint[i].x=tx*Tran[0][0]+ty*Tran[1][0]+ tz*Tran[2][0]+ttag*Tran[3][0]; NewPoint[i].y=tx*Tran[0][1]+ty*Tran[1][1]+ tz*Tran[2][1]+ttag*Tran[3][1]; NewPoint[i].z=tx*Tran[0][2]+ty*Tran[1][2]+ tz*Tran[2][2]+ttag*Tran[3][2]; NewPoint[i].tag=tx*Tran[0][3]+ty*Tran[1][3]+ tz*Tran[2][3]+ttag*Tran[3][3]; if(NewPoint[i].tag!=0&&NewPoint[i].tag!=1){ NewPoint[i].x/=NewPoint[i].tag, NewPoint[i].y/=NewPoint[i].tag, NewPoint[i].z/=NewPoint[i].tag, NewPoint[i].tag=1; } }}voidReShape(intw,inth){ winWidth=w;winHeight=h; glViewport(0,0,w,h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(0.0,winWidth,0.0,winHeight);}voidOnDraw(DefPointTempPoint[]){ glBegin(GL_LINES); for(inti=0;i<FaceNum;i++){ intsize=Face[i].size(); for(intj=0;j<size;j++){ glVertex2d(TempPoint[Face[i][j]].x, TempPoint[Face[i][j]].z); glVertex2d(TempPoint[Face[i][(j+1)%size]].x, TempPoint[Face[i][(j+1)%size]].z); } } glEnd();}voidOnDraw_O(DefPointTempPoint[]){ glColor3f(1.0f,0.0f,0.0f); glBegin(GL_LINES); glVertex2d(TempPoint[0].x,TempPoint[0].y); glVertex2d(TempPoint[1].x,TempPoint[1].y); glVertex2d(TempPoint[0].x,TempPoint[0].y); glVertex2d(TempPoint[2].x,TempPoint[2].y); glVertex2d(TempPoint[0].x,TempPoint[0].y); glVertex2d(TempPoint[3].x,TempPoint[3].y); glVertex2d(TempPoint[1].x,TempPoint[1].y); glVertex2d(TempPoint[2].x,TempPoint[2].y); glVertex2d(TempPoint[1].x,TempPoint[1].y); glVertex2d(TempPoint[3].x,TempPoint[3].y); glVertex2d(TempPoint[2].x,TempPoint[2].y); glVertex2d(TempPoint[3].x,TempPoint[3].y); glEnd();}voidDisplay(){ glClear(GL_COLOR_BUFFER_BIT); glColor3f(0.0f,0.0f,0.0f); glBegin(GL_LINES); glVertex2d(winWidth/2,0); glVertex2d(winWidth/2,winHeight); glVertex2d(0,winHeight/2); glVertex2d(winWidth,winHeight/2); glEnd(); glColor3f(1.0f,0.0f,0.0f); OnDraw(XOZPoint); glColor3f(0.0f,1.0f,0.0f); OnDraw(XOYPoint); glColor3f(0.0f,0.0f,1.0f); OnDraw(YOZPoint); glColor3f(1.0f,0.0f,0.0f); OnDraw_O(YOYPoint); glutSwapBuffers();}voidGetThPmidView(){ TransForm(XOZPoint,Point,XOZ); TransForm(XOYPoint,Point,XOY); TransForm(YOZPoint,Point,YOZ); TransForm(YOYPoint,Point,YOY); TransForm(XOZPoint,XOZPoint,Matrix); TransForm(XOYPoint,XOYPoint,Matrix); TransForm(YOZPoint,YOZPoint,Matrix); TransForm(YOYPoint,YOYPoint,Matrix);}voidInitial(){ for(inti=0;i<10;i++)Face[i].clear(); glClearColor(1.0f,1.0f,1.0f,1.0f); ThPmidInit(); GetThPmidView();}voidSpecialKey(intkey,intx,inty){ if(key==GLUT_KEY_PAGE_UP){ //Rotate TransForm(Point,Point,Rotate); TransForm(XOZPoint,Point,XOZ); TransForm(XOYPoint,Point,XOY); TransForm(YOZPoint,Point,YOZ); TransForm(YOYPoint,Point,YOY); TransForm(XOZPoint,XOZPoint,Matrix); TransForm(XOYPoint,XOYPoint,Matrix); TransForm(YOZPoint,YOZPoint,Matrix); TransForm(YOYPoint,YOYPoint,Matrix); } if(key==GLUT_KEY_PAGE_DOWN){ //Rotate TransForm(Point,Point,RotateR); TransForm(XOZPoint,Point,XOZ); TransForm(XOYPoint,Point,XOY); TransForm(YOZPoint,Point,YOZ); TransForm(YOYPoint,Point,YOY); TransForm(XOZPoint,XOZPoint,Matrix); TransForm(XOYPoint,XOYPoint,Matrix); TransForm(YOZPoint,YOZPoint,Matrix); TransForm(YOYPoint,YOYPoint,Matrix); } glutPostRedisplay();}intmain(intargc,char*argv[]){ glutInit(&argc,argv); glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB); glutInit