Special Characters

  The following characters have special meaning to FEMGV .  

/

kills the current command line and returns to the primary command menu. It is used to return to the primary menu from commands that do not return automatically, see 1.4. Example:

GEOMETRY POINT => coord /
FG>

 

?

requests a display of the command syntax for the current command. It may be used at any stage of command input. As all the possible combinations of inputs from the current position are displayed it is inadvisable to use ? at a high level.

Example:

 GEOMETRY POINT  =>coord ?
  /CURSOR
  `coord'
  `point-n'   /CURSOR
  `point-n'   `coord'
 GEOMETRY POINT COORD =>

 

;

processes a command but does not clear the screen or redraw the picture. When making several adjustments to a view this can save a lot of time.

Example

FV> V M ;
FV> V O S ;
FV> V O B ;
FV> E R U 10

The mesh will be displayed with shrunken elements with broken outlines rotated up 10 degrees but only redrawn once.

This could also be input as:

FV> V M ; V O S ; V O B ; E R U 10

 

:

provides a continuation line facility for a list of integers

Example

FV> VIEW LINE LIST 1 4 7 12 16 102 34 133 234 134 :
MORE =>105 106 107

 

@

switches the input of commands between on-line input from the keyboard and off-line input from a batch data file which has been loaded with commands. See Appendix I of the User Manual Appendices.

   

=

allows the continuation of a command on a new line. This also allows optional menus to be displayed in some cases.

Example

FV> v m =
VIEW MESH =>

Without the = the mesh would have been displayed.

 

,

in a set of model coordinates makes that coordinate the same as the corresponding value in the previous set.

Example

FG>g p pt1  1 2 3
 GEOMETRY POINT PT1 1. 2. 3.
 GEOMETRY POINT =>pt2 4 , 5
 GEOMETRY POINT PT2 4. 2. 5.
 GEOMETRY POINT =>pt3 , , 6
 GEOMETRY POINT PT3 4. 2. 6.

 

#

Allows a comment line to be written to the history and log files.

 

!

will (under Unix or DOS operating systems) allow the user to perform operating system commands from within FEMGV. Directory changes cannot be tracked by FEMGV.

Example

Under Unix operating systems:-

>!ls    
>!cp filename1 filename2

Under DOS:-

>!DIR 
>!COPY C:FILE1.DAT FILE2.DAT