南京信息工程大学　 实验（实习）报告



实验目的：练习图形几何变换的算法及实现

实验内容：给定多边形P的控制点为：{{-3,5},{-3,2},{2,-2},{2,1},

{6,2},{2,6}},对该多边形进行二维几何变换并画出变换后的图形。

实验要求：

1、　　试将坐标原点移动到多边形P的重心；

2、　　将多边形P绕(2,-2)点顺时针旋转60度；

3、　　将多边形P分别向x方向错切2倍，向y方向错切1/2倍；

4、　　撰写实验报告并附上所用变换矩阵、程序和结果。-Nanjing University of Information Science Experiment (internship) report experimental purposes: to practice graphic geometric transformation algorithm and experimental content: control points of a given polygon P: {{-3,5}, {-3,2}, {2,-2}, {2,1}, {6,2}, {2,6}, the polygon is a two-dimensional geometric transformation and draw graphics transform. Experimental requirements: 1, the test will move the origin of coordinates to the center of gravity of the polygon P　2, the polygon P (2,-2) around the point is rotated 60 degrees clockwise　3, the polygon P, respectively, in the x direction shear 2 times to Shear 1/2 times the y direction　4 Write a lab report and attach the transformation matrix, procedures and results.