[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fB5XhOoJ68_JlnwrGPzpdG1yJbryNCJQK-oOpvJCgGr8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-06-02 22:17:38",42966468,[8,9,10,11],"图形放大2倍","图形放大2倍,同时沿X、Y坐标轴方向各移动1个绘图单位","沿X坐标轴方向各移动2个绘图单位","沿X坐标轴方向放大2倍,同时沿X、Y坐标轴方向各平移1个绘图单位",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},9,"21a5c4542f00625b7f622345ac6b72a9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb682023ac4fabf517582311f35c7db7a.gif","计算机图形学","6b68ca2da1934bf48d7dbff0a43fb50a","第5章测验","使用下列二维图形变换矩阵:\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F50eee17d4dbb783cf885b07965c1dd1b.png\">变换",[21,32,35,44,53,59,68,77,86],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],42966467,[25,26,27,28],"1","2","3","4","在(9)中,均匀的整体放大变换对应的矩阵元素的非零非1个数是","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],42966469,[39,40,41,42],"S和P均在可见的一侧,则输出点P","S和P均在不可见的一侧,则输出0个顶点","S在可见一侧,P在不可见一侧,则输出线段SP与裁剪线的交点和点S","S在不可见的一侧,P在可见的一侧,则输出线段SP与裁剪线的交点和P","在多边形的逐边裁剪法中,对于某条多边形的边(方向为从端点S到端点P)与某条裁剪线(窗口的某一边)的比较结果共有以下四种情况,分别需输出一些顶点.请问哪种情况下输出的顶点是错误的? ( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],42966470,[48,49,50,51],"Ni·(P2-P1)<0","Ni·(P2-P1)> 0","Ni·(P2-P1) ≠0","Ni·(P2-P1)=0","凸多边形窗口的二维线裁剪Cyrus-Beck算法中,若( ),说明P1P2与第i条边平行",{"answer":54,"createTime":5,"id":55,"options":56,"question":43,"source":30,"type":31},[],42966471,[57,40,58,42],"S和P均在可见的一侧,则输出S和P","S在可见一侧,P在不可见一侧,则输出线段SP与裁剪线的交点",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],42966472,[63,64,65,66],"图形放大3倍","图形放大3倍,同时沿X、Y坐标轴方向各移动3个绘图单位","沿X坐标轴方向各移动3个绘图单位","沿X坐标轴方向放大3倍,同时沿X、Y坐标轴方向各平移3个绘图单位","使用下列二维图形变换矩阵,将产生变换的结果为3 0 00 1 03 3 1",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],42966473,[72,73,74,75],"MP与给定的某条直线夹角变化值为3π","MP与给定的某条直线夹角变化值为2π","MP与给定的某条直线夹角变化值为π","MP与给定的某条直线夹角变化值为0","用转角法判别点在区域的内外.将疑点M与边界上一点P连接,当P沿边界移动一周时,M点处于区域外的是",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],42966474,[81,82,83,84],"(8,-6)","(-6,8)","(-8,6)","(6,-8)","使用二维图形变换矩阵, 如果图形的一个顶点坐标为A(6,8),则变换后的坐标A' 为 ( )0 -1 01 0 00 0 1",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":95},[],42966475,[90,91,92,93],"平移变换不改变图形大小和形状,只改变图形位置","错切变换虽然可引起图形角度的改变,但不会发生图形畸变","拓扑关系不变的几何变换不改变图形的连接关系和平行关系","旋转变换后各图形部分间的线性关系和角度关系不变,变换后直线的长度不变","以下关于图形变换的论述那些是正确的",1]