Chgevcc计算机图形学实验

1、七夕，占今诗人惯咏星月与悲情。吾生虽晚，世态炎凉却已看透矣。情也成空， 且作“挥手袖底风”罢。是夜，窗外风雨如晦，吾独坐陋室，听一曲尘缘，合 成诗韵一首，觉放诸占今，亦独有风韵也。乃书于纸上。毕而卧。凄然入梦。乙 酉年七月初七。啸z记。计算机图形学实验实验冃的：1. 实现图形显示，掌握图形显示原理和处理过程。2. 掌握图形变换及显示。实验内容：编程环境：了解tc编程环境及相应编辑器基本语言：c语言，掌握绘图语言。图形变换：多边形的平移，对称变换。程序原理：int gdriver=detecegmode;lnitgraph(*gdriver,*gmode,*path);/*initgraph用来

2、完成将屏幕显示器设置为图形模式，即图形方式初始化*/*gmode和gdriver都是用來设置图形显示模式，使用detect是让系统b动检测图形适配器 的最高分辨率模式*/*path用來指定图形驱动程序所在的路径*/cleardevice();清屏setbkcolor (yellow)设置背景颜色为黄色rectangle(左上顶点处标，右下角顶点坐标)。矩形函数。试验程序：矩阵显示：#include<stdio.h>#in clude<graphics.h>main()int gdriver=detectrgmode;initgraph(&gdriver,&

3、;gmode,"c:tc");setbkcolor(blue);cleardevice();setcolor(yellow);rectangle(220,140,420,340);line(220,140,420,340);getch(); closegraph();对矩形图形平移变换程序：#include<stdio.h>#in clude<math.h>#in clude<graphics.h># include"affine.c"main()int gdriver=detec7；gmode;static doub

4、le xl=0.0,0.0,100.0,100.0,0.0;static double yl=0.0,50.0,50.0,0.0,0.0;static double x25,y25;int i;double x,xx,yy;initgraphf &gdrivei;&gmode,"c:tc"); axis();for(x=-100;x<=100;x=x+20)parallel(x,x);for(i=0;i<=4;i+)x2i=affinex(xli,yli,10);y2i=affiney(xli,yli,l.o)/2;for(i=0;i<=3

5、;i+)iine(scx(x2i),scy(y2i)/scx(x2i+l),scy(y2i+l);getch();closegraph();复介变换（平移变换，x轴对称变换）程序:#in clude<stdio.h>#in clude<math.h>#in clude<graphics.h>#in clude"affine.c"main()int gdriver=detect,gmode;static double xloo.0,0.0,100.0,100.0,0.0;static double yl=0.0,50.0,50.0,0.0,0.0;static double x2,y2;int i;double x,xx,yy;in itgrapm&gdriveis&gmode/uwtc1'); axis();for(x=-100;x<=100;x=x+20)parallel(x,x/2);for(i=0;i<=4;i+)x2i=affinex(xli,yli,1.0); y2i=affiney(xli,yliz1.0)/2;for(i=0;i<=3;i+)iine(scx(x2i)/scy(y2i)/scx(x2i+l)/scy(y2i+l);taisho_0