[Ubuntu-zh] help on textdraw

[listofx]

textdraw是一个绘制ascii图形的软件，我正好需要它画一个简单的文本插图。例
如

                     end point________________ _________ _________ __________ ____________
                       |           |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                                   |          |         |         |          |
                       |____b0_____|__b1______|__b2_____|__b3_____|__b4______|_____________
                     start point


但是，
我有些地方不会用。这个软件不大，sudo apt-get install textdraw即可，谁有
兴趣试一试。安装之后在终端中运行td或者textdraw即可。

我不会用的地方是：
1. 如何清除自己画的图形
2. 其实第一个问题和"marked object"相关，问题就是我不知道怎么mark object,
帮助提示：
TEXTDRAW 0.2 (c) by Dieter Schoppitsch

c       copy            copy marked object to buffer
d       delete          delete marked object
e       ellipse         draw ellipse-object
h       help            this help page
l       line            draw line-object
m       move            move marked object
p       print           print to ascii-file 'print'
q, ESC  exit            exit (without saving!)
r       rectangle       draw rectangle-object
s       save            save file
t       text            draw text-object
v       paste           paste buffer

position cursor with cursor keys
mark object at 'hot spot'
to load existing file: <td filename>
try also: home, end, pgdn, pgup