计算机图形学实验报告—图形与文本.doc

Windows编程实验报告题 目： 图形与文本 专 业： 班 级： 学 号： 姓 名： 指导老师： 2014年10月19日一、实验目的 熟悉MFC技术中图形和文本的使用。二、实验环境Windows7操作系统，VC+6.0三、实验内容【程序1：】编写一个单文档的应用程序,在视图窗口中显示一行文本，要求文本颜色为红色，背景色为黄色。关键代码：void CSy2_1View:OnDraw(CDC* pDC)CSy2_1Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data hereCString outstr = 显示一行文本;pDC-SetBkColor(RGB(255,255,0);pDC-SetTextColor(RGB(255,0,0);pDC-TextOut(100,100,outstr);结果截图：【程序2：】编写一个单文档的应用程序,在客户区使用不同的画笔和画刷绘制点、折线、曲线、圆角矩形、弧、扇形和多边形等几何图形。关键代码：void CSy2_2View:OnDraw(CDC* pDC)CSy2_2Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data hereCPen *PenOld,PenNew;CBrush *BrushOld,BrushNew;COLORREF rgbColor = RGB(255,0,0),RGB(0,255,0),RGB(0,0,255),RGB(255,255,0);/画一个矩形PenNew.CreatePen(PS_SOLID,4,rgbColor1);BrushNew.CreateSolidBrush(rgbColor3);PenOld = pDC-SelectObject(&PenNew);BrushOld = pDC-SelectObject(&BrushNew);pDC-Rectangle(20,200,200,300);PenNew.DeleteObject();BrushNew.DeleteObject();/画一个椭圆弧线PenNew.CreatePen(PS_DASH,1,rgbColor0);BrushNew.CreateSolidBrush(rgbColor2);pDC-SelectObject(&PenNew);pDC-SelectObject(&BrushNew);pDC-Arc(20,200,200,300,200,250,20,200);PenNew.DeleteObject();BrushNew.DeleteObject();/画一个扇形PenNew.CreatePen(PS_SOLID,1,rgbColor2);BrushNew.CreateSolidBrush(rgbColor0);pDC-SelectObject(&PenNew);pDC-SelectObject(&BrushNew);pDC-Pie(420,120,540,240,520,160,420,180);PenNew.DeleteObject();BrushNew.DeleteObject();/画一条折线PenNew.CreatePen(PS_SOLID,1,rgbColor2);pDC-SelectObject(&PenNew);POINT pt3=10,100,50,60,120,80;pDC-Polyline(pt,3);PenNew.DeleteObject();/画一个点pDC-SetPixel(CPoint(150,150),rgbColor0);/画一个圆角矩形PenNew.CreatePen(PS_SOLID,1,rgbColor1);BrushNew.CreateSolidBrush(rgbColor2);pDC-SelectObject(&PenNew);pDC-SelectObject(&BrushNew);pDC-RoundRect(210,210,410,410,30,30);PenNew.DeleteObject();BrushNew.DeleteObject();/画一条曲线PenNew.CreatePen(PS_SOLID,1,rgbColor1);pDC-SelectObject(&PenNew);POINT pt14 = 20,100,50,60,120,80,150,160;pDC-PolyBezier(pt1,4);PenNew.DeleteObject();/画一个多边形PenNew.CreatePen(PS_SOLID,1,rgbColor2);BrushNew.CreateSolidBrush(rgbColor1);pDC-SelectObject(&PenNew);pDC-SelectObject(&BrushNew);POINT pt24 = 130,100,160,60,220,80,250,160;pDC-Polygon(pt2,4);PenNew.DeleteObject();BrushNew.DeleteObject();pDC-SelectObject(PenOld);pDC-SelectObject(BrushOld);结果截图：【程序3：】利用函数CreateFontIndirect()创建黑体字体，字体高度为30像素，宽度为25像素，并利用函数DrawText()在客户区以该字体输出文本“VC+”。关键代码：void CSy2_3View:OnDraw(CDC* pDC)CSy2_3Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data hereCFont *OldFont,NewFont;LOGFONT MyFont = 30,25,0,0,0,1,1,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH,黑体;NewFont.CreateFontIndirect(&MyFont);OldFont = pDC-SelectObject(&NewFont);CRect rect;rect.SetRect(CPoint(150,150),CPoint(250,250);pDC-DrawText(VC+,&rect,DT_CENTER);pDC-SelectObject(OldFont);NewFont.DeleteObject();结果截图：【程序4：】编写一个单文档的应用程序,在视图窗口中显示3个圆，通过使用不同颜色的画笔以及画刷来模拟交通红绿灯。关键代码：void CTest2View:OnDraw(CDC* pDC)CTest2Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data hereCPen *PenOld,PenNew;CBrush *BrushOld,BrushNew;PenOld = (CPen *) pDC-SelectStockObject(BLACK_PEN);/使用库存黑色画笔BrushNew.CreateSolidBrush(RGB(255,0,0);/红色BrushOld=pDC-SelectObject(&BrushNew);CRect rect1(0,0,100,100);pDC-Ellipse(&rect1);BrushNew.DeleteObject();/每次使用完新画刷，释放掉新画刷BrushNew.CreateSolidBrush(RGB(255,255,0);/黄色pDC-SelectObject(&BrushNew);CRect rect2(0,100,100,200);pDC-Ellipse(&rect2);BrushNew.DeleteObject();BrushNew.CreateSolidBrush(RGB(0,255,0);/绿色pDC-SelectObject(&BrushNew);CRect rect3(0,200,100,300);pDC-Ellipse(&rect3);BrushNew.DeleteObject();/恢复系统默认的GDI对象pDC-SelectObject(PenOld);pDC-SelectObject(BrushOld);结果截图：【程序5：】编写一个单文档的应用程序,在视图窗口实现一行文本的水平滚动显示，要求每个周期文本为红、黄两种颜色，字体为宋、楷两种字体。关键代码：public:bool flag;/用于标记当前文本颜色字体状态int x;/用于指定文本的起始位置/初始化变量CSy2_5View:CSy2_5View()x=0;/文字滚动起点flag=1;/标记当前文字出于哪种状态，初始定为宋体红字/ TODO: add construction code herevoid CSy2_5View:OnDraw(CDC* pDC)CSy2_5Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data hereSetTimer(0,100,NULL);/启动定时器，每隔0.1秒执行一次任务CString outString=滚动的文字;COLORREF strRgb=RGB(255,0,0),RGB(255,255,0);pDC-SetBkMode(TRANSPARENT);/设置背景模式CRect r1;GetClientRect(&r1);/获取当前客户区的矩形大小赋值给r1CFont *OldFont,NewFont; if( flag = 1)NewFont.CreatePointFont(200,宋体,NULL);pDC-SetTextColor(strRgb0);OldFont=pDC-SelectObject(&NewFont);pDC-TextOut(0+x,0,outString);pDC-SelectObject(OldFont);NewFont.DeleteObject();if(x=r1.right)/如果大于视图边界就切换文本颜色和字体属性，令flag=0；x=0;flag=0;if( flag = 0)NewFont.CreatePointFont(200,楷体,NULL);pDC-SetTextColor(strRgb1);OldFont=pDC-SelectObject(&NewFont);pDC-TextOut(0+x,0,outString);pDC-SelectObject(OldFont);NewFont.DeleteObject();if(x=r1.right