计算机图形学实验报告.docx

实验报告实验课程: 计算机图形学 学生姓名： XXXX 学 号： XXXX 专业班级： 软件 2014年12月25日目 录实验一 矩阵变换实验二 图形绘制实验三 曲线的生成算法实现实验四 二维基本图形生成的算法实验五二维填充图的生成算法实验一 矩阵变换实验题目：求绕平面中任一点P（x，y）旋转ɑ角的变换矩阵，并编程检验。实验目的：掌握图形变换的几何化表示的基本原理和方法；采用几何化方法实现二维图形的组合变换；算法思想：1、根据题意构建新的坐标系； 构成新坐标系的两条直线方程分别为： L2：过点P，且与x轴的夹角为ɑ的逆向直线； L1：过点P，且与x轴的夹角为π/2+ɑ的正向直线。2、写出新旧坐标系的坐标变换矩阵Txy_x＊y＊ 该矩阵就完成了新坐标系下绕原点（原坐标系下P点）的旋转3、输出原坐标系下的线性变换矩阵： R=Txy_x＊y＊Ttr程序代码：void CZhouView::pingyi(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo(m_nPoint1.x+100,m_nPoint1.y+100);dc.LineTo(m_nPoint2.x+100,m_nPoint2.y+100);}void CZhouView::xuanzhuan(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo((m_nPoint1.x*cos(0.5))-(m_nPoint1.y*sin(0.5)),(m_nPoint1.x*sin(0.5))+(m_nPoint1.y*cos(0.5)));dc.LineTo((m_nPoint2.x*cos(0.5))-(m_nPoint2.y*sin(0.5)),(m_nPoint2.x*sin(0.5))+(m_nPoint2.y*cos(0.5)));}void CZhouView::bili(){CClientDC dc(this); dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo(m_nPoint1.x*2,m_nPoint1.y*2);dc.LineTo(m_nPoint2.x*2,m_nPoint2.y*2);}void CZhouView::XCQ(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x+100,m_nPoint2.y);}void CZhouView::DC(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo(m_nPoint1.y,m_nPoint1.x);dc.LineTo(m_nPoint2.y,m_nPoint2.x);}void CZhouView::YCQ(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineTo(m_nPoint2.x,m_nPoint2.y+100);}//OnLButtonUp(UINT nFlags, CPoint point) case 8:pingyi();break;case 9:xuanzhuan();break;case 10:bili();break;case 11:XCQ();break;case 12:YCQ();break;case 13:DC();break;dc.MoveTo(m_nPoint1.y,m_nPoint1.x);dc.LineTo(m_nPoint2.y,m_nPoint2.x);}void CZhouView::YCQ(){CClientDC dc(this);dc.MoveTo(m_nPoint1.x,m_nPoint1.y);dc.LineT