vim draw picture plug in

http://www.vim.org/scripts/script.php?script_id=40

Its easy to start and stop DrawIt: use

\di to start DrawIt and
\ds to stop DrawIt.

Supported Features
<left> move and draw left
<right>move and draw right, inserting lines/space as needed
<up> move and draw up, inserting lines/space as needed
<down> move and draw down, inserting lines/space as needed
<s-left> move left
<s-right>move right, inserting lines/space as needed
<s-up> move up, inserting lines/space as needed
<s-down> move down, inserting lines/space as needed
<space>toggle into and out of erase mode
>draw -> arrow
<draw <- arrow
^draw ^arrow
vdraw varrow
<pgdn> replace with a \, move down and right, and insert a \
<end>replace with a /, move down and left,and insert a /
<pgup> replace with a /, move up and right, and insert a /
<home> replace with a \, move up and left,and insert a \
\> draw fat -> arrow
\< draw fat <- arrow
\^ draw fat ^arrow
\v draw fat varrow
\a draw arrow based on corners of visual-block
\b draw box using visual-block selected region
\e draw an ellipse inside visual-block
\f fill a figure with some character
\h create a canvas for \a \b \e \l
\l draw line based on corners of visual block
\s adds spaces to canvas
<leftmouse>select visual block
<s-leftmouse>drag and draw with current brush (register)
\ra ... \rzreplace text with given brush/register
\pa ...like \ra ... \rz, except that blanks are considered
to be transparent