Calling a variable from a Script?

Brand new at writing a script. My question is, is it possible to create a variables (A, B, C, etc) within autocad and call those variables within a script?

I've been able to write a script that generates an entity using Pline command that traces points within a .dat file, then scales that entity. The script also adds a small amount of text. I'd like to be able to call the scale factor and the text from variables.

For now I'd like to stay with the scripting language, if possible.

Not sure if I've explained this correctly or not, as I said, I'm just learning this so any help would be appreciated.

Don

You can use the user system variables USERI1-5 (to store integrs) or USERR1-5 (for decimals):

_SETVAR USERI1 3
_PLINE 0.0,0.0 _W (getvar "USERI1")  50.0,50.0 
;end of script

_SETVAR USERR1 3.75
_PLINE 0.0,0.0 _W (getvar "USERR1")  50.0,50.0 
;end of script

Thank for the quick reply Mircea. I've been able to populate the variables both from the command line and from within the script. This I've verified from the command line. Ultimately what I want to be able to do is populate several of the from the command line and then call them up from within the script.

But I can't get the "getvar" line to work at all. I'll try to post a snippet of code here. Very simple....populate a variable...draw a line...and attempt to scale that line using the contents of the variable. Feeling a little dense here...

_SETVAR USERI1 3
_LINE
0.0,2.0
2.0,2.0

_scale
0.0,2.0

0.0,2.0
_getvar useri1

;end of script

BTW...this code works if I just insert a numerical scale factor in place of the getvar statement....

have you tried it enclosing the getvar in ( ) & "" as shown in MSasu's code?

I'm pretty sure I did but let me go try it again with that in mind.......BRB

Didn't work....Here's what the Command Window says....

SETVAR SETVARIABLE

Default: SETUSRRL1

Options: ? or

Variable name» USERI1

Default: 16

Enter new value for SETUSRINT1» 16

:

_LINE

Options: Segments, Enter to continue from last point or

Specify start point» 0.0,0.0

Options: Segments, Undo, Enter to exit or

Specify next point» 0,2

Options: Segments, Undo, Enter to exit or

Specify next point»

:

scale

Specify entities» 0,0

1 found, 1 total

Specify entities»

Specify base point» 0,0

Options: Reference or

Specify scale factor» _(getvar

Requires valid numeric distance or second point, or option keyword.

Options: Reference or

Specify scale factor» "useri1")

Requires valid numeric distance or second point, or option keyword.

Options: Reference or

Specify scale factor»

Osnap
none
SETVAR USERI1 16
_LINE 
0.0,0.0
0,2

scale
0,0

0,0
_(getvar "useri1")

;end of script

I spotted two issues into the script you posted:

Osnap
none
SETVAR USERI1 16
_LINE 
0.0,0.0
0,2[color=red]
<-- there is an extra space[/color]
scale
0,0

0,0
[color=red]_[/color](getvar "useri1")[color=red]<-- remove the underline[/color]
[color=red] <-- there is an extra space and line[/color]
;end of script

Your profile read AutoCAD full; please don't miss that if is LT in fact, then the AutoLISP statement will not work!

Another comment, if you simulate pick in order to get the item to scale, in some circumstances this operation may fail or get a wrong entity; since the line you are willing to process is the last drawn entity, may use the Last selection mode instead:

...
_SCALE
[color=magenta]_L[/color]

0.0,0.0
...

I do use full version 2005 but at home I have Draftsight. That's the program I've been using this script on......So, I scooted down to work and tried this on my Acad2005 and it worked with the changes you outlined above. I'll finish up this script and just use it at work. Thanks for your input and sorry to be so dense but this is new to me....Thank you all

Don

Just saw your last post and that's an great idea as I've only been picking one point...I still have a lot to learn of the conventions with script...Thanks again Mircea.....

Glad to hear that is sorted now. You're entirely welcome, Don!