LISP behaves differently on different computers

[Andrew1979]

I have written a lisp routine that draws timber roof trusses. That bit works well.

 

However, I also made a lisp that draws roof tiles and roof battens on the roof truss.

This runs as a seperate liso routine.

 

For some reason, on one computer it all works well, but on another, the roof tiles and battens are drawn upside down, back to front.

 

Any ideas what AutoCAD setting might be causing this issue?

 

 

Here is a screen capture of what is happening.

[Andrew1979]

I have worked out the problem. Open 'UNITS' command, then make sure the "Clockwise" tick box is unselected. Simple

[Andrew1979]

I am trying to change the clockwise tick box under "unit" command window. I want to be able to change the value using an AutoCAD command rather than using tick box in the window that opens for the units command.

 

Is there such a command that can change this value from the command prompt?

 

I basically wanted to use a LISP routine to change the tick box on or off, so if I know what the AutoCAD command is to change it, I can then incorporate that into my program.

 

[Andrew1979]

Ok, I found it, it is ANGDIR

[MSasu]

To avoid programatically such cases may help to add a validation of ANGDIR system variable in your code.

[BIGAL]

A usefull tip is to set all your units variables in one go by autoloading a defun then you can call it with 1 line of code from any program. Likewise reset back once finished.

 

(defun civ_units ()
(SETQ ANGBASEE (GETVAR "ANGBASE"))
(SETQ ANGDIRR (GETVAR "ANGDIR"))
(SETQ LUNITSS (GETVAR "LUNITS"))
(SETQ LUPRECC (GETVAR "LUPREC"))
(SETQ AUNITSS (GETVAR "AUNITS"))
(SETQ AUPRECC (GETVAR "AUPREC"))
(SETVAR "LUNITS" 2)
(SETVAR "ANGBASE" 0.0)
(SETVAR "ANGDIR" 0)
(SETVAR "LUPREC" 0)
(SETVAR "AUNITS" 0)
(SETVAR "AUPREC" 0)
)

(civ_units)
.....
(old_civ_units)

[BIGAL]

Its better to keep asking questions with the same theme in one post rather than starting multiples. See my answer in other post.

 

Moderator may like to merge two posts.

[Tiger]

Threads are now merged.

[Tharwat]

What did you do with this thread ?

Wasting our time or what ?

 

http://www.cadtutor.net/forum/showthread.php?87781-Getting-block-names