Topic: what does "lock" mean?

[andrew_nao]

in some old code i was looking at i noticed this

(setq lock3 1)

and further down the code it has
(if (= lock3 1)
  (setq ptby (- ptay (* sclf 1.01971)))
  (setq ptby (- ptay (* SCLF 0.375)))
  )

but no where is lock3 set to anything other than 1 in the beginning of the code.

i tried to look thru the documentation to see if it has anything but there is nothing there.
is this a hidden variable?
can anyone shed some light on what "lock3" is supposed to mean?

[kpblc]

Perhaps somewhere (i mean any function you calls) variable 'lock3' is not localized.

[tedg]

Being a "setq", isn't it simply a variable made up within the routine that is tied to something else referred to later?
You would also need to know what ptby, ptay and sclf mean too right?


Appears to be a math equation after an if statement.

[ChrisCarlson]

Perhaps somewhere (i mean any function you calls) variable 'lock3' is not localized.

I'd have to agree but even if it was localized lock3 would need to be set to 1, without being set lock3 will have a value of nil.

BUT if this is the only mention of lock3 it doesn't quite make sense without the full script we will never know.

[kpblc]

That's right. The only way i know is to check every function you wrote by pressing Ctrl+Shift+C within VLIDE: IDE can show you many 'errors'

[andrew_nao]

i did a search within the file and found 2 instances of it, both gave it a value of 1... the program didnt work regardless i was just curious what that lock3 meant, thought it might have been a function in acad.
it seems to be a made up variable within the program. apparently whoever started on the file before me just never finished it
the ptby and ptay are just coordinates within the dwg file.

thanks for everyones replies

[kpblc]

Could you show full code?

[RC]

(setq merely defines a variable and sets it equal to 'something'.

In the case (setq lock3 1)
creates the variable 'lock3' and assigns the value 1 to that variable.

[Jeff H]

Lock could mean one of following

• a mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form.
• a short confined section of a canal or other waterway in which the water level can be changed by the use of gates and sluices, used for raising and lowering vessels between two gates.

[snownut2]

Or maybe it was some sort of licensing scheme the original author had, since it is apparent it is only part of a larger set of code, it is impossible to determine.