Yeah, or "3 points at 6 miles away!!!" lol

Maybe we can start a thread about the best way to "stamp" a model in such a way... Maybe you could think about if theres a way to do some type of micro geometry stamp from your side Michael?

Anyway.... This was a new twist. Usually the chinese hacker websites are stealing stuff and giving it away for free!!! People are weird.

Strange what some folks will do for a little "Kudos" ... I know they are behind another great wall, but at least pass it on in the same spirit as it was given - But i love that scale to real size ratio, you'd need some real good eyes to see that!

Martin Spencer-Ford

Hi Burr,

> Maybe you could think about if theres a way to do some type of micro geometry
> stamp from your side Michael?

Nothing really comes to mind that would be any different than just creating text and just scaling it down...

Do you mean something like apply the text as some kind of invisible watermark? I guess it could be possible to encode information in different ways but the good thing about just having plain curves is that any program that displays the geometry would work to see the text just if they know where to go zoom in on.

- Michael

steganography galore!

https://en.wikipedia.org/wiki/Steganography




fortunately, we don't have any forum avatars in here :P..but the whole process is rather intriguing. this will be a big thing in the upcoming 3d-printing vs copyrights war(s).

I was thinking more that just free floating text could get left by some type of tranform.

I was wondering about a "stamp" that could localize enough resolution to perform the action at such a small scale. Like, enter the text, then, wherever you pick a point, the bounds of the text, at some miniscule scale, would allow the density/resolution, to perform the action. The text would need to be "attached" to the model somehow. I was considering that "super minuscule numbers" wouldnt boolean and such. Or, how could you join just curves to a solid, like trim them into the surface...

Maybe just "scale the model by 1000 times, then boolean text and scale it back down?

If your text is in the faraway space
Make in the 3 views : Select visible objects / Inverse Selection/ erase

- if your your text is not an object
Select all Objects / inverse selection / erase

if your text is an object it's appear in the Browser!
So easy to earase it :)

etc...

You are trapped in any case! :)

Hi Frenchy - You could for instance make the tiny copyright notice in the tire tread of a car model or on the windscreen etc, if they don't know it's there and it's part of the model and on the appropriate layer they would never find it unless they knew exactly where you placed it. Remember the old saying, the best way to hide something is to leave it in plain sight

Martin Spencer-Ford

Here's a cube. Nothing up my sleeve!

"Meshing" looses it. Probably wont be any "catch all"

the best way to hide something is to leave it in plain sight

It's The Purloined Letter by Edgar Poe! :)

lol. sorry Frenchy....

Front view, lower left corner.

The cube scaled by 1000 times, then the text at .1 height added and booleaned on (I was trying to boolean text at .0001 height, but no go) then scaled back by .0001.

@ Buur
You must put your Moi inside because now your cube is not on the origine! :)

And if you explode all or just select "Faces" you obtain 29 surfaces! So something is curious for this cube! :)

Touché..............

Better........... I think I got it where it just about clips out of view if you get close enough to see it....

Although this would make it difficult, if not impossible to get a manifold mesh for printing.....

I believe that is not a good idea!

When you will make a Snap to the corner of this cube, if you don't care of the Name of the snap you will have all chance to snap on a numerous points of your "hidden" signature!
So false constructions in perspective! :)

And the numbers of surfaces & or Edges is always a revelatory of something wrong! :)

Code an hidden signature inside a texture seems very more powerful! :)

It was I who requested an anonymizing feature in the Rhino header block. I've written a special program to purge those, but it's not automatic.

Perhaps the most flexible approach is an edit field under Options?

Hi Martin,

>Between these two events I had a back-up drive go belly up on me and a lot of the files were heavily corrupted and >could not be salvaged from the drive, my model was among those files. I duly went and downloaded my work files >back from GrabCAD, but since it's a copy of a copy that's gone from one drive to another as a "new file" the dates and >times those files were created are all different from when i created the model, thus technically speaking, I can't prove >when I created the file any more leaving me wide open for someone else to claim its copyright based on date. I don't >mind in this case as I shared my file freely and I suppose one could say it's my own fault for sharing it. But it has >highlighted this issue to me should I produce something I might not want to freely share in the future.

Maybe you could do this to claim your ownership... Simply use the freely available GNU Privacy Guard (gpg), or the famous PGP, which is global email encryption standard since the early 90's, and create a detached digital signature for your .3dm file. This procedure would not touch your 3dm file and in case you lost your original and download an unmodified ver. of your file, the signature would be still valid... The signature contains your Public Key ID, Name, email address and the creation date/time, when a file was signed. So if you sign your .3dm files with a detached signature and put also the signature in a zip file along your model, this should prove hopefully your ownership. PGP/gpg engryption is secure.

As test i attach a simple .3dm file (a sphere) and a detached signature file, which can be verified by other gpg/PGP users.

(P.S. you can upload your Public gpg Key on public key servers:

https://keyserver2.pgp.com/vkd/GetWelcomeScreen.event

http://sks-keyservers.net/i/

and friends, workmates etc. can verify your sig for example. (my key id is 0x560007F8))


Best regards
Stefan

Hi Stefan - I did consider using PGP and email. but the problem arises out of the size of the file most e-mail servers don't allow files over 10mb and yes i could rar it up as separate volumes but at the time considered it to be too much hassle, lesson learnt on that the hard way. I know i didn't need to use email for the files encryption, I have been fortunate this time and gotten the other website to remove the files and the links to the web page under dispute, but I guess it's time i also looked into using something like a blue ray drive for creating backups that can then be hidden away.

Thanks for the suggestions though

Martin Spencer-Ford

Hi Martin,

the procedure i suggested was more meant that when you submit a .zip file archive to GrabCad or other 3D sites, where the file size doesn't matter, so that you can better prove that your are the owner.

Best regards
Stefan

Ahhh right - sorry for not understanding you correctly - I will look into the possibilities and how open/easily shared it becomes - good thinking though

Martin Spencer-Ford

Hey Frenchy......
I suppose we can try to find the signature on this?

http://moi3d.com/gallery/images/1wireframe.png