分类： LINUX
2009-12-31 11:40:21
/===============+============================================================\
|| Starting & | ||
|| Stopping | Explanation ||
++--------------+-----------------------------------------------------------++
|| \di | start DrawIt |drawit-start| ||
|| \ds | stop DrawIt |drawit-stop| ||
|| :DIstart | start DrawIt |drawit-start| ||
|| :DIstop | stop DrawIt |drawit-stop| ||
|| | ||
++==============+===========================================================++
|| Maps | Explanation ||
++--------------+-----------------------------------------------------------++
|| | The DrawIt routines use a replace, move, and ||
|| | replace/insert strategy. The package also lets one insert||
|| | spaces, draw arrows by using the following characters or ||
|| | keypad characters: ||
|| +-----------------------------------------------------------++
||| move and draw left |drawit-drawing| ||
||| move and draw right, inserting lines/space as needed ||
||| move and draw up, inserting lines/space as needed ||
||| move and draw down, inserting lines/space as needed ||
||| move cursor left |drawit-move| ||
||| move cursor right, inserting lines/space as needed ||
||| move cursor up, inserting lines/space as needed ||
||| move cursor down, inserting lines/space as needed ||
||| toggle into and out of erase mode ||
|| > | insert a > and move right (draw -> arrow) ||
|| < | insert a < and move left (draw <- arrow) ||
|| ^ | insert a ^ and move up (draw ^ arrow) ||
|| v | insert a v and move down (draw v arrow) ||
||| replace with a \, move down and right, and insert a \ ||
||| replace with a /, move down and left, and insert a / ||
||| replace with a /, move up and right, and insert a / ||
||| replace with a \, move up and left, and insert a \ ||
|| \> | insert a fat > and move right (draw -> arrow) ||
|| \< | insert a fat < and move left (draw <- arrow) ||
|| \^ | insert a fat ^ and move up (draw ^ arrow) ||
|| \v | insert a fat v and move down (draw v arrow) ||
||| drag and draw with current brush |drawit-brush| ||
||| drag and move current brush |drawit-brush| ||
|| | ||
||==============+===========================================================++
||Visual Cmds | Explanation ||
||--------------+-----------------------------------------------------------++
|| | The drawing mode routines use visual-block mode to ||
|| | select endpoints for lines, arrows, and ellipses. Bresen- ||
|| | ham and Bresenham-like algorithms are used for this. ||
|| | ||
|| | These routines need a block of spaces, and so the canvas ||
|| | routine must first be used to create such a block. The ||
|| | canvas routine will query the user for the number of ||
|| | lines to hold |'textwidth'| spaces. ||
|| +-----------------------------------------------------------++
|| \a | draw arrow from corners of visual-block selected region ||
|| \b | draw box on visual-block selected region ||
|| \c | the canvas routine (will query user, see above) ||
|| \e | draw an ellipse on visual-block selected region ||
|| \f | flood figure with a character (you will be prompted) ||
|| \l | draw line from corners of visual-block selected region ||
|| \s | spacer: appends spaces up to the textwidth (default: 78) ||
|| | ||
++==============+===========================================================++
|| Function and Explanation ||
++--------------+-----------------------------------------------------------++
|| :call SetDrawIt('vertical','horizontal','crossing','\','/','X','*') |||| set drawing characters for motions for moving ||
|| and for the ellipse drawing boundary ||
|| default motion ||
|| | up/down, ||
|| - left/right, ||
|| + -| crossing, ||
|| \ downright, ||
|| / downleft, and ||
|| X \/ crossing ||
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