Force Calculation fix / other mods

[David Meeker <dmeeker@xxxxxxxx>]

All--

I wanted to get a lua lineintegral(3) fix out as soon as I can, so I 
have posted a fixed version on the mailing list's files site. The 
self-installing executable is at:
http://groups.yahoo.com/group/femm/files/setup.exe
and the source for this version is at:
http://groups.yahoo.com/group/femm/files/femm32src.zip

I've finally ditched MSVC++ 4 in favor of a later version. This version 
of the executables is compiled with MSVC++ 6, and I haven't included the 
standard windows dll's in the distribution, figuring that everyone 
already has them. Omitting these files cuts the length of the 
executable distribution by about 400K. (I was going to switch over to 
the new MSVC++ 7, but there seem to be some compatibility problems with 
v7 and Win95/98 that I haven't figured out yet...) I've also pruned 
down the source distribution, again reducing its size by about 400K.

Besides the lineintegral(3) fix, there are some improvements to 
functionality. A while ago, someone had suggested that it would be nice 
to be able to enter in formulas into any of the edit boxes, rather than 
always having to enter in numerical values. This is now implemented. 
So, for example, you could enter in a formula like:
1/(0.10*PI*4.e-7)
when you are defining an asymtotic boundary condition instead of having 
to calculate it out separately and then enter it in. All of these 
formulas get evaluated when you hit OK for any dialog box. In addition, 
you can select any piece of text that you have typed into any edit box 
and do a right mouse button click. On the pop-up menu, a new entry, 
"evaluate", appears, that evaluates the selected piece of text with lua.\

I've also added a lua console. By default, it is not shown, but you can 
display it by a selection on the View menu. There is an entry in the 
preferences that turns it on by default. You can use the lua print 
statement to display results in the console, and you can use a statement 
called "prompt" (see manual) to get input from the user e.g. while a lua 
script is running.

You can now make curved contours in the post-processor. If you hit the 
Shift key after you have drawn a contour in the post-processor, a dialog 
appears that asks you for an arc length. The line that you've drawn is 
then replaced by the specified arc. There is a lua command that allows 
you to do the same thing programmatically.

Grid commands for the preprocessor have been added to the lua functions.

A number of inconsistent behaviors that Keith has pointed out to me have 
now been fixed (although I think that I still have a few more yet to 
fix...) Thanks again, Keith G.

Dave.
--
David Meeker <http://femm.berlios.de/dmeeker>