[GRASSLIST:3939] Re: NVIZ and vector for animation path

[Paul Hasenohr]

Kevin,

Thanks for your answer.
Actually, I didn't get any trouble when I use keyframes with different 
camera views but it is hard to create a path by changing the camera view 
because I want to follow an animal track, so it is a complex path !
Points 1 and 2 of my previous message were found in the "Basic Animation" 
paragraph of the tutorial.

Cheers
Paul

At 08:16 24/06/2002 -0400, Kevin Slover wrote:
>Paul,
>
>     From what I have read and understand and accomplished with NVIZ, you must
>create the path by changing the camera view.  I have yet to see if you are 
>able
>to pre-load a path with a vector file.  Generally, there would be a prompt of
>some sorts asking you to enter a vector file.  Did you continue reading the
>tutorial.  At the bottom, they have a bit more about key frames.
>
>Hope this helps, and hope this is not misleading in any sorts...cheers...
>
>
>Paul Hasenohr wrote:
>
> > Hello,
> >
> > I have a new problem with NVIZ. In the NVIZ tutorial, it is written that
> > 1) The Frames slider may be thought of as a time line representing the
> > path. When a path has been loaded, clicking on run will move the viewer
> > down the path, redrawing the wire frame surface at each path step.
> > 2) total frames: The value in this type-in box is the total number of
> > frames in the animation. When a vector file is first loaded, the number of
> > points in the file (up to 1000) will be the number of frames. Typically, to
> > produce smooth animations, the user should use a vector file with 10 - 50
> > points, then change total frames to 100 or more, depending on the length of
> > the animation desired. Requesting an excessive number of frames (i.e.,
> > 500,000) may cause memory problems.
> >
> > I tried many times to start NVIZ with a vector file (with 3, 100 or 300
> > points) built with s.to.vect and I never had a path loaded in the basic
> > animation window.
> >
> > How can I build an animation by following a path defined by a vector file ?
> >
> > Thanks for your help
> >
> > Paul Hasenohr
> > CLS
> >
> > PS : Markus, I just filled a bug report for my previous problem with 3D
> > site files and NVIZ
>
>--
>LTJG Kevin Slover, NOAA
>GIS Specialist/Oceanographer
>NOAA/TPC/TSB/Storm Surge Unit
>11691 SW 17th Street
>Miami FL  33165
>
>W (305) 229-4456