计算机图形学题库

1.多边形填充算法中，错误的描述是（）。A．扫描线算法对每个像素种访问一次，主要缺点是对各种表的维持和排序的耗费较大B.边填充算法基本思想是对于每一条扫描线与多边形的交点，将其右方像素取补C.边填充算法较适合于帧?缓冲存储器的图形系统D.边标志算法也不能解决像素被重复访问的缺点2.下列设备中属于图形输出设备的是（?）1鼠标2LCD3键盘4?LED5打印机6扫描仪7绘图仪8触摸屏,3,6,8,4,5,7,5,6,7,6,7,83.在Cohen-Sutherland算法中，完全在窗口边界内的线段两个断点的区域码均为______.4.已知三角形ABC各顶点的坐标A(1,2)、B(5,2)、C(3,5)，相对直线PP(线段的坐标分别为：12P?(-1,-1)?、P?(8,3))做对称变换后到达A’、B’、C’。12试计算A’、B’、C’的坐标值。（要求用齐次坐标进行变换，列出变换矩阵，列出计算式子，不要求计算结果）5.23113A.471B.691C.-4-71D.-6-916.7.8.9.Bezierp0)=n(P1-P0)p(1)=n(Pn-Pn-1)p(0)=n(n-1)((P2-P1)-(P1-P0))Bezierp(1)=n(n-1)((Pn-2-Pn-1)-(Pn-1-Pn))G1G2210.11.12.13.______________________________________________________________________________OpenGL??A.OpenGLB.OpenGLCADC.OpenGLD.OpenGLWindowsUNIXLinuxMacOS15.P8,6,2?A.(8,6,2)B.8,6C.4,3,1D.4,316.t??A.0,1B.0,C.1,1D.1,017.18.19.A.B.C.

GouraudA.B.C.D.21.BezierC.BezierD.22.A.B.C.D.23.Bresenhamr100*/RED(____________________)/*voidcirclePoint(intx,inty){(___________________);putpixel(200+y,200+x,RED);putpixel(200-y,200+x,RED);putpixel(200-x,200+y,RED);putpixel(200-x,200-y,RED);putpixel(200-y,200-x,RED);putpixel(200+y,200-x,RED);putpixel(200+x,200-y,RED);}

voidMidBresenhamcircle(intr){intx,y,d;x=0;y=r;d=1-r;while(x<y){______________________;if(d<0)d+=2*x+3;else{d+=2*(x-y)+5;y--;}x++;}}voidmain(){intgdriver,gmode;detectgraph(&gdriver,&gmode);initgraph(&gdriver,&gmode,"C:\\TURBOC2");____________________;getch();closegraph();}24.T200020111A.Y2XY2

B.2XY1C.XYD.X22XY125.A.HermiteP0P1B.P0P0P1P1C.D.P0P126.C.HSV27.28.29.30.4(x)(x)(x)(XW1,YW1)LWHW(XV1,YV1)

LVHVA(XA,YA)A(XA,YA)A31.A.BezierB.C.D.32.openGLglEnableGL_DEPTH_TEST33.A.B.C.D.34.CohenSutherLandP1P2P1P2code1code2,0code20&code2<>0&code2=0<>code235.100T010001A.YB.XC.180

D.Y=X37.38.39.()P1P1P1A(-7,1)B(-2,1)C(-2,5)D(-7,5)P1(-9,0)P2(0,6)

41.P0(25)P1(210)P2(96)P3(1611)P4(184)P5(122)P6(72)42.PSutherland-HodgmanSPPP0PsSPPSPP43.nD.n+1

44.A.B.C.D.45.P(X,Y,W)46.

47.48.

49.2562048*102450.1051.()A(22)B(25)C(87)D(104)B(62)ETAET5200-86Bresenham

53.BezierA.nBezierB.BezierrrC.BezierD.Bezier54.Pxy

55.56.PC3()()()OpenGLglPushMatrix57.A.B.C.58.59.A.B.C.D.60.

61.,(),,;;Phong;62.P0P1P2P3P4P5P663.A.B.C.D.64.LambertA.LambertLambertC.D.65.66.A.B.D.C.67.68.

A.B.