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 
   v            draw v  arrow 
   <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 v  arrow 
   \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 ... \rz  replace text with given brush/register 
   \pa ...      like \ra ... \rz, except that blanks are considered 
                to be transparent