编程介的小学生 2019-11-20 18:59 采纳率: 20.5%
浏览 147

Edge 是怎么编写的

Problem Description
For products that are wrapped in small packings it is necessary that the sheet of paper containing the directions for use is folded until its size becomes small enough. We assume that a sheet of paper is rectangular and only folded along lines parallel to its initially shorter edge. The act of folding along such a line, however, can be performed in two directions: either the surface on the top of the sheet is brought together, or the surface on its bottom. In both cases the two parts of the rectangle that are separated by the folding line are laid together neatly and we ignore any differences in thickness of the resulting folded sheet.
After several such folding steps have been performed we may unfold the sheet again and take a look at its longer edge holding the sheet so that it appears as a one-dimensional curve, actually a concatenation of line segments. If we move along this curve in a fixed direction we can classify every place where the sheet was folded as either type A meaning a clockwise turn or type V meaning a counter-clockwise turn. Given such a sequence of classifications, produce a drawing of the longer edge of the sheet assuming 90 degree turns at equidistant places.

Input
The input contains several test cases, each on a separate line. Each line contains a nonempty string of characters A and V describing the longer edge of the sheet. You may assume that the length of the string is less than 200. The input file terminates immediately after the last test case.

Output
For each test case generate a PostScript drawing of the edge with commands placed on separate lines. Start every drawing at the coordinates (300, 420) with the command "300 420 moveto". The first turn occurs at (310, 420) using the command "310 420 lineto". Continue with clockwise or counter-clockwise turns according to the input string, using a sequence of "x y lineto" commands with the appropriate coordinates. The turning points are separated at a distance of 10 units. Do not forget the end point of the edge and finish each test case by the commands stroke and showpage.

You may display such drawings with the gv PostScript interpreter, optionally after a conversion using the ps2ps utility.

Sample Input
V
AVV

Sample Output
300 420 moveto
310 420 lineto
310 430 lineto
stroke
showpage
300 420 moveto
310 420 lineto
310 410 lineto
320 410 lineto
320 420 lineto
stroke
showpage

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 stm32流水灯+呼吸灯+外部中断按键
    • ¥15 将二维数组,按照假设的规定,如0/1/0 == "4",把对应列位置写成一个字符并打印输出该字符
    • ¥15 NX MCD仿真与博途通讯不了啥情况
    • ¥15 win11家庭中文版安装docker遇到Hyper-V启用失败解决办法整理
    • ¥15 gradio的web端页面格式不对的问题
    • ¥15 求大家看看Nonce如何配置
    • ¥15 Matlab怎么求解含参的二重积分?
    • ¥15 苹果手机突然连不上wifi了?
    • ¥15 cgictest.cgi文件无法访问
    • ¥20 删除和修改功能无法调用