[Date Prev][Date Next][Thread Prev][Thread Next]
[Date Index] [Thread Index]
[Monthly Archives] [List Home]

Re: [Virtools] Moving Objects using the mouse.

Well, you can either perform the transforms to move from screen space or
world space into the local referential for the table...

or

You can cheat a bit and call the table a floor then use "Object Keep on
Floor" to push it around.

Hope this helps,

David Callele

----- Original Message -----
From: "Kam Memarzia" <kam@rmjm.com>
To: <chrgarnier@wanadoo.fr>; "'Virtools Mailing List'"
<virtools-user-group@lists.theswapmeet.com>
Sent: Tuesday, April 09, 2002 6:52 AM
Subject: RE: [Virtools] Moving Objects using the mouse.


> Hi,
>
> This is Great, but it will move the object up and down and from side to
> side.
> I'm trying to move an object along the XZ plane of another object.
>
> the example : There is a Table with a Box on it. I want to move the Box
> around the table using the mouse. Same as Moving it in Dev in the XZ world
> plane.
>
>
> Best regards,
>
> Kam Memarzia
>
>
>
>
>  -----Original Message-----
> From: ChrGarnier [mailto:chrgarnier@wanadoo.fr]
> Sent: 09 April 2002 12:06
> To: Kam Memarzia; 'Virtools Mailing List'
> Subject: RE: [Virtools] Moving Objects using the mouse.
>
>
>
> Hello,
>
> Please find the equations down there:
>
> XYZ are 3D coords of a point IN CAMERA REF
> xy are screen coords as per the near clipping plane.
> WH are width and height of the screen
> then we have:
> X=Z*tan(fov/2)*(2*x/W-1);//1
> Y=Z*tan(fov/2)*(H-2*y)/W;//2
>
> You need the object Z  (picked position) and transform it into the camera
> ref.
> Then you position the object on a plane perpendicular to the camera dir at
> Z,
> using X,Y.
>
> Best regards,
>
> Christian Garnier.
>
>  -----Message d'origine-----
> De : owner-virtools-user-group@lists.theswapmeet.com
> [mailto:owner-virtools-user-group@lists.theswapmeet.com]De la part de Kam
> Memarzia
> Envoyé : mardi 9 avril 2002 10:18
> À : 'Virtools Mailing List'
> Objet : [Virtools] Moving Objects using the mouse.
>
>
>
> Greetings,
>
> I'd like to replicate the Move function in Dev within a cmo using the
mouse.
>
>
> So that once the object is clicked on, it can be dragged around in a plane
> (say X,Z) - whilst staying underneath the mouse.
>
> Its translating the screen co-ordinates into world space I think.
>
> Any clues, thoughts, equations or solutions would be most appriciated.
>
> Thanks
>
> Kam Memarzia
>
>
>
>

...............................................................
Distributed via the virtools-user-group list: http://www.theswapmeet.com/numl.html
To reply to the list instead of its author, use "Reply to All"
To unsubscribe: send "unsubscribe virtools-user-group" to Majordomo@lists.theswapmeet.com
To subscribe: send "subscribe virtools-user-group" to Majordomo@lists.theswapmeet.com
To post a message: send it to virtools-user-group@lists.theswapmeet.com
...............................................................
References: