Tried perspective lens with default zoom??
On Tue, Jun 15, 2010 at 10:07 PM, JeffH <[email protected]> wrote:
> So I tried unsuccessfully using unproject like this:
>
> Since _2dObj.x = 10; _2dObj.y = 10:
> var scenepos:Number3D = view.camera.unproject(10,10); // a point 10
> pixels off the top left corner of the stage
> _3dObj.moveTo(scenepos.x,scenepos.y,scenepos.z);
>
> This gives me the following approximate values (and so didn't move the
> 3D object to the upper left):
> scenepos.x = 0.2 , scenepos.y = 55 , scenepos.z = 82
>
> Is it something to do with my camera settings?:
>
> view.camera = new HoverCamera3D({zoom:50});
> view.camera.lens = new OrthogonalLens();
> view.camera.position = new Number3D(0, -675, -1000);
> view.camera.lookAt(new Number3D(0, 0, 0));
>
>
> On Jun 15, 2:21 pm, Michael Iv <[email protected]> wrote:
> > I don't have a code for this exact scenario but you can doit this way:
> > Create a dummy object , any kind of sprite (can be invisible if you need)
> or
> > even generic Point class of flash.Get it to the position of view where
> you
> > want your 3d object to move in 2d . Unproject the 2d coordinates into 3d
> > space using camera.unproject() . This method returns Number3d that is
> > scene3d position of your object Then tween your 3d object to that
> position.
> > I think that should work for you.
> > :)
> >
> >
> >
> >
> >
> > On Tue, Jun 15, 2010 at 8:09 PM, JeffH <[email protected]> wrote:
> > > Hi Michael,
> >
> > > I really appreciate your help on this. Unfortunately, I feel like I'm
> > > flying blind. The docs don't indicate what unproject does so I'm
> > > unclear how to proceed. What would be really helpful is if you could
> > > post some code that would accomplish the following:
> >
> > > Given a stage size of 480x320 and a view that is similar in size but
> > > centered, move a 3d object from position 0,0,0 to the stage position
> > > 0,0. That is, move the 3D object from the center of the stage to the
> > > top left corner. If you could show me how unproject works with this
> > > example, that would be great!
> >
> > > Thanks again.
> >
> > > On Jun 15, 12:32 pm, Michael Iv <[email protected]> wrote:
> > > > Do unproject !
> >
> > > > Sent from my iPhone
> >
> > > > On Jun 15, 2010, at 7:08 PM, JeffH <[email protected]> wrote:
> >
> > > > > I'm looking for:
> >
> > > > > screenPlace(view.camera, 2Dobject, 3Dobject)
> >
> > > > > function screenPlace(camera,obj2D,obj3D):void {
> > > > > some code
> > > > > obj3D.x = something
> > > > > obj3D.y = something
> > > > > }
> >
> > > > > Given a 3d object and a 2d location (from the stage), move my 3D
> > > > > object so that it sits on the 2d object's screen position.
> >
> > > > > On Jun 15, 11:40 am, Michael Iv <[email protected]> wrote:
> > > > >> yes it does , isn't it what you need?
> >
> > > > >> On Tue, Jun 15, 2010 at 5:36 PM, JeffH <[email protected]> wrote:
> > > > >>> Sorry, I meant "But isn't this is returning the 3D coords for a
> 2D
> > > > >>> point based on a 3D
> > > > >>> objects position?"
> >
> > > > >>> On Jun 15, 10:35 am, JeffH <[email protected]> wrote:
> > > > >>>> But isn't this is returning the 3D coords for a 3D point based
> on
> > > > >>>> a 3D
> > > > >>>> objects position? I think I need to do the opposite. Move a 3D
> > > > >>>> object
> > > > >>>> (its z=0 btw) to a 2D point based on an object on the stage.
> > > > >>>> Example,
> > > > >>>> move my 3D boat to a marker on a river where the marker is a 2D
> > > > >>>> flash
> > > > >>>> object on the stage.
> >
> > > > >>>> On Jun 15, 10:24 am, Michael Iv <[email protected]> wrote:
> >
> > > > >>>>> You are almost correct but you have got to give an offset to
> the
> > > > >>> coordiantes
> > > > >>>>> as view coord system is different from Scene3D
> >
> > > > >>>>> _spriteX=_screenVertex.x+_view.width*.5;
> > > > >>>>> _spriteY=_screenVertex.y + _view.height*.5;
> >
> > > > >>>>> On Tue, Jun 15, 2010 at 5:10 PM, JeffH <[email protected]>
> wrote:
> > > > >>>>>> Hi Michael,
> >
> > > > >>>>>> I'm probably just missing something really easy here but I've
> > > > >>>>>> seen
> > > > >>> the
> > > > >>>>>> following example code which just seems to be for moving a 2D
> > > > >>>>>> object
> > > > >>>>>> to a point in the 3D space. Can you show me an example of how
> I
> > > > >>>>>> would
> > > > >>>>>> move a 3D object based on a 2D point? Thanks for your help!
> >
> > > > >>>>>> screenPlace(view.camera, myMovieClip, 3Dobject)
> >
> > > > >>>>>> function screenPlace(camera,who,whob):void {
> > > > >>>>>> var sc:ScreenVertex;
> > > > >>>>>> sc = camera.screen(whob)
> > > > >>>>>> who.x = sc.x + view.x;
> > > > >>>>>> who.y = sc.y + view.y;
> > > > >>>>>> }
> >
> > > > >>>>>> On Jun 15, 9:36 am, Michael Iv <[email protected]> wrote:
> > > > >>>>>>> use ScreenVertex coordinates by accessing camera.screen()
> > > > >>>>>>> method .
> > > > >>>>>>> :)
> >
> > > > >>>>>>> On Tue, Jun 15, 2010 at 4:34 PM, JeffH <[email protected]>
> > > > >>>>>>> wrote:
> > > > >>>>>>>> Hi all. I wanted to get the experts' opinions on the best
> way
> > > > >>>>>>>> to
> > > > >>>>>>>> accomplish what I need to do. I have a 3D object (a boat)
> > > > >>>>>>>> that is
> > > > >>> in a
> > > > >>>>>>>> view with the camera set to a position and roll (45) to try
> and
> > > > >>>>>>>> achieve a "simcity" look. The settings are like this:
> >
> > > > >>>>>>>> view.camera.x = 675; view.camera.y = -675; view.camera.z =
> > > > >>>>>>>> -1300;
> > > > >>>>>>>> view.camera.roll(45); view.camera.lookAt(new Number3D(0, 0,
> > > > >>>>>>>> 0));
> >
> > > > >>>>>>>> What I want to do is to move this object based on 2D points
> > > > >>> located on
> > > > >>>>>>>> the stage (for example, a path along a river). What is the
> best
> > > > >>> way to
> > > > >>>>>>>> do this? I did try converting 2D points to 3D by trying to
> get
> > > > >>> the
> > > > >>>>>>>> intersect of a ray off a plane but it doesn't seem to work.
> Not
> > > > >>> sure
> > > > >>>>>>>> if it is because I have a camera roll... I tried this based
> on
> > > > >>> some
> > > > >>>>>>>> other posts (where my 2D point is the var pt):
> >
> > > > >>>>>>>> var plane:Plane3D = new Plane3D();
> > > > >>>>>>>> plane.fromNormalAndPoint(new Number3D(0, 1, 0), new
> Number3D(0,
> > > > >>> 0,
> > > > >>>>>>>> 0));
> > > > >>>>>>>> var cameraPosition:Number3D = new Number3D(view.camera.x,
> > > > >>>>>>>> view.camera.y, view.camera.z);
> > > > >>>>>>>> var ray:Number3D = view.camera.unproject(pt.x, pt.y);
> > > > >>>>>>>> ray.add(ray, cameraPosition);
> > > > >>>>>>>> var intersect:Number3D =
> > > > >>>>>>>> plane.getIntersectionLineNumbers(cameraPosition, ray);
> >
> > > > >>>>>>>> But, intersect.x does not seem to align with pt.x on the
> > > > >>>>>>>> screen.
> > > > >>>>>>>> Perhaps I am misinterpreting how this should work? Should I
> try
> > > > >>> to
> > > > >>>>>>>> orient the stage (Flash CS4) the same way or can I leave
> that
> > > > >>> "flat"
> > > > >>>>>>>> and translate 2D coordinates to the 3D space?
> >
> > > > >>>>>>>> Anyway, thanks for any guidance!
> >
> > > > >>>>>>> --
> > > > >>>>>>> Michael Ivanov ,Programmer
> > > > >>>>>>> Neurotech Solutions Ltd.
> > > > >>>>>>> Flex|Air
> > > > >>>>>> |3D|Unity|www.neurotechresearch.comhttp://
> > > > >>>>>> blog.alladvanced.nethttp://
> > > > >>>>>>www.meetup.com/GO3D-Games-Opensource-3D/
> > > > >>>>>>> Tel:054-4962254
> > > > >>>>>>> [email protected]
> > > > >>>>>>> [email protected]
> >
> > > > >>>>> --
> > > > >>>>> Michael Ivanov ,Programmer
> > > > >>>>> Neurotech Solutions Ltd.
> > > > >>>>> Flex|Air
> > > > >>> |3D|Unity|www.neurotechresearch.comhttp://
> > > > >>> blog.alladvanced.nethttp://www.meetup...
> > > > >>>>> Tel:054-4962254
> > > > >>>>> [email protected]
> > > > >>>>> [email protected]
> >
> > > > >> --
> > > > >> Michael Ivanov ,Programmer
> > > > >> Neurotech Solutions Ltd.
> > > > >> Flex|Air |3D|Unity|www.neurotechresearch.comhttp://
> > > > >> blog.alladvanced.nethttp://
> www.meetup.com/GO3D-Games-Opensource-3D/
> > > > >> Tel:054-4962254
> > > > >> [email protected]
> > > > >> [email protected]
> >
> > --
> > Michael Ivanov ,Programmer
> > Neurotech Solutions Ltd.
> > Flex|Air
> |3D|Unity|www.neurotechresearch.comhttp://blog.alladvanced.nethttp://
> www.meetup.com/GO3D-Games-Opensource-3D/
> > Tel:054-4962254
> > [email protected]
> > [email protected]
>
--
Michael Ivanov ,Programmer
Neurotech Solutions Ltd.
Flex|Air |3D|Unity|
www.neurotechresearch.com
http://blog.alladvanced.net
http://www.meetup.com/GO3D-Games-Opensource-3D/
Tel:054-4962254
[email protected]
[email protected]
