turn osnaps off/on

[chelsea1307]

Does anyone have a code or can pull a section out of a code that will turn all osnaps off, and one that will turn the osnaps back on. I want to place it at the beginning and end of a code I already have and osnaps cause problems while running the code, any help would be great.

[Lee Mac]

A nice example from CAB:

(defun Set_osmode (flg) ; nil=OFF  t=ON
   (if (or (and flg (>= (getvar "osmode") 16383)) ; ON & osmode is off
           (and (null flg) (<= (getvar "osmode") 16383)) ; OFF & osmode is ON
       )
     (setvar "osmode" (boole 6 (getvar "osmode") 16384)) ; Toggle osmode
   )
 )

[MaxwellEdison]

I'm sure you could probably get it to revert to the current state as opposed to just turning all on...LEE!!! Get in here!!!

 

*EDIT* Jeez, he's faster than I thought...

[Lee Mac]

Well, I just normally do this:

(setq oldsnap (getvar "osmode"))
(setvar "osmode" 0)

[b][color=Red]
your code[/color][/b]



(setvar "osmode" oldsnap)

 

 

But I don't suppose this is very professional

[Lee Mac]

I'm sure you could probably get it to revert to the current state as opposed to just turning all on...LEE!!! Get in here!!!

 

*EDIT* Jeez, he's faster than I thought...

 

 

Haha, you posted only a minute after I did

[David Bethel]

Maybe

(- 1 (getvar "SNAPMODE"))

-David

[Lee Mac]

Maybe

(- 1 (getvar "SNAPMODE"))

-David

 

I suppose I should use this also, instead off using the actual Osnap settings - just turn the option itself on and off.

 

Nice code David.

[David Bethel]

Lee,

 

Remember that this just toggles the current setting without checking what that setting is.

 

I like it more for menu type usage

$(if,$(=,$(getvar,SNAPMODE),1),!.)Toggle SNAPMODE]^c^c^p(setvar "SNAPMODE" (- 1 (getvar "SNAPMODE")));^p

-David

[Lee Mac]

I see what you mean - but with some routines, I might just turn the OSnaps off so as not to interefere with anything, so I don't mind what the setting is, as long as it is off.

[chelsea1307]

thanks for all the replies, got it working

[Lee Mac]

Who'd have thought you'd get such a lot of replies in such a small amount of time...

 

Glad you got it working Chels

[VVA]

My Old version of functions

(defun disable_osmode ()
 ;;; turn osnaps off
 (if (and (< (getvar "OSMODE") 16000)
   (/= (getvar "OSMODE") 0)
   )
  (setvar "OSMODE" (+ (getvar "OSMODE") 16384))
))
(defun enable_osmode ()
 ;;; turn osnaps on
 (if (> (getvar "OSMODE") 16000)
   (setvar "OSMODE" (- (getvar "OSMODE") 16384))
 ) ;_if
)

My new version

(defun disable_osmode ()
 ;;; turn osnaps off
(setvar "osmode" (logior (getvar "OSMODE") 16384))
)
(defun enable_osmode ()
;;; turn osnaps on
(setvar "osmode"(boole 2 (getvar "OSMODE") 16384))
)

[Lee Mac]

What is the significance of 16384 and 16000?

[VVA]

From the help

OSMODE System Variable

Type: Integer

Saved in: Registry

Initial value: 4133

 

 

Sets running object snaps. The setting is stored as a bitcode using the sum of the following values:

 

0 - NONe

1 - ENDpoint

2 - MIDpoint

4 - CENter

8 - NODe

 

...

 

4096 - EXTension

8192 - PARallel

 

To specify more than one object snap, enter the sum of their values. For example, entering 3 specifies the Endpoint (bitcode 1) and Midpoint (bitcode 2) object snaps. Entering 16383 specifies all object snaps.

 

When object snaps are switched off using the Osnap button on the status bar, a bitcode of 16384 (0x4000) is returned, in addition to the normal value of OSMODE. With this additional value, developers can distinguish this mode from Object Snap modes that have been turned off from within the Drafting Settings dialog box. Setting this bit toggles running object snaps off. Setting OSMODE to a value with this bit off toggles running object snaps on.

More correctly not 16000 and 16384

For example

1. Set OSMODE=1

2. The press F3 (turn osnaps off)

3. Type OSMODE in command line and you will see value 16385 (16384 + 1)

Repeat point 1-3 with OSMODE=3, 7, 15 and so on.

 

To turn off a osnap it is necessary to add to value OSMODE 16384

To turn on a osnap it is necessary to subtract from value OSMODE 16384

With corresponding checks

[Lee Mac]

Ahh, thanks for the help VVA, I understand it now.

 

Cheers

 

Lee

[PKR]

On 1/16/2009 at 10:12 AM, Lee Mac said:

Well, I just normally do this:

 

(setq oldsnap (getvar "osmode"))
(setvar "osmode" 0)

[b][color=Red]
your code[/color][/b]



(setvar "osmode" oldsnap)

 

 

 

 

But I don't suppose this is very professional

 

 

This really works for me ! Thank you very much! 

[tombu]

20 hours ago, PKR said:

This really works for me ! Thank you very much! 

It turns all of them off if that's what you want, but Lee Mac's first post "A nice example from CAB:" toggles the osnaps on & off.

You can also do this by clicking the "2D Object Snap" icon on the Status Bar or using either F3 or Ctrl+F.

 

Welcome to our Forums!

[resullins]

On 1/16/2009 at 10:10 AM, MaxwellEdison said:

I'm sure you could probably get it to revert to the current state as opposed to just turning all on...LEE!!! Get in here!!!

 

*EDIT* Jeez, he's faster than I thought...

I love both the way you automatically summon him as the keeper of this answer AND the fact that he beat you to it. He's like the CAD genie.