[Manifold-l] fly-through: definition of 3D-trajectory possible?

[jburn_gis at cogeco.ca]

Sorry, missed your email earlier.  If you check on this list back a day or two, you'll see that I posted the code for
this kind of function.

Cheers.


>
> Thanks Martin for your reply.
>
> What I would like to do is to create a short video for presentation in a museum.
> With the fly-through people should see the area where the museum is situated and
> they should get an overview of archaeological sites (of this area) already
> known. This would be a fly in a more or less constant height. But then I would
> like to circle around a special place and to reduce the height of the camera
> showing the results of a new prospection, uncovering a roman house of 120 m by
> 70 m (reducing the speed of the fly and stopping in a specific distance to the
> object).
>
> Thanks again.
> Harald
>
>
>
>
>
>
> Zitat von Martin Roseveare <m.roseveare at archaeophysica.co.uk>:
>
> > I'm pretty sure that Manifold can't define a 3D path like you describe,
> > at least, not as a simple object. You can define curved profiles from
> > surfaces so I guess if you knew the camera was a constant height above
> > the ground for example you could perhaps use a DEM to create a profile
> > and then add your camera height to it. What you would do with it then I
> > don't know!
> >
> > Saving terrains to a video file has got to be one of the most
> > complicated things ever - you'd have to save a sequence of frames
> > captured as you moved across the terrain and then use external software
> > to interpolate between them and build the video. It could of course be
> > automated through use of a script which, provided you knew the
> > trajectory in advance, might speed the process considerably.
> >
> > If you can tell me more about what you're trying to achieve I might be
> > able to offer more insight.
> >
> > Martin Roseveare
> > Senior Geophysicist
> >
> >
> > Web: www.archaeophysica.co.uk
> > Phone: +44 (0) 1989 730 564
> > Fax: +44 (0) 7050 369 790
> >
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> >
> > -----Original Message-----
> > From: manifold-l-bounces at lists.directionsmag.com
> > [mailto:manifold-l-bounces at lists.directionsmag.com] On Behalf Of Dr.
> > Harald von der Osten
> > Sent: 23 November 2006 14:15
> > To: Manifold-L
> > Subject: [Manifold-l] fly-through: definition of 3D-trajectory possible?
> >
> > Dear specialists,
> >
> >
> > is it possible to create - maybe based on splines - a 3D-trajectory
> > which
> > defines the camera position for a fly-though?
> >
> > Is it possible to save the fly-through to a videofile?
> >
> > May be the answer of my first question is just "no". So - maybe it could
> > be a
> > feature for a version > ( >>> (?) ) 7 ?
> >
> > Thanks a lot
> >
> > Harald
> >
> >
> >
> >
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> >
> >
>
>
>
>
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--------------
James Burn AScT