Chris, you answered my question(wrt "splines") perfectly!

Thanks soo much,

-m

"Chris B" <c_b### [at] btconnectcomnospam> wrote:
> "Mike" <inf### [at] mydisorg> wrote in message
> news:web.441ea1ac86410b2949a12b420@news.povray.org...
> >I also should ask, is there a way to instantiate/insert path verticies at
> > certain times of the clock (if clock > something and < something else)
> > insert new point in path. My animation below is simply inserting cubes at
> > specific times of the clock and not yet using paths.
> >
> > thanks,
> >
> > -m
> >
> > "Mike" <inf### [at] mydisorg> wrote:
> >> Is there a way to take a given path in povray and animate each of its
> >> individual vertices according to seperate paths? For example pathA has
> >> vertice 1, 2 & 3 - have vertice 1 follow pathB, vertice 2 follow pathC
> >> and
> >> vertice 3 follow pathD.
> >>
> >> I'm trying to visualize a maze/pathfinding algorithm and I would like to
> >> be
> >> able to continiously animate each point. (example here:
> >> http://www.mydis.org/wp-uploads/growths.mpg)
> >>
> >> input greatly appreciated,
> >>
> >> mike
> >
>
> Hello Mike,
>
> If you are talking about splines (though I'm not at all sure from your
> description that you are), then yes there is.
> You can declare a number of splines then use them to build another spline
> and you can add in spline positions based upon the clock setting.
> The following (slightly messy) example illustrates both.
>
> Regards,
> Chris B.
>
>
> camera { location <0,2,-2> look_at 0 }
> light_source { <-5,30,-10> 1 }
> #declare MySplineA =
>   spline {
>     cubic_spline
>     -.25, < 0,0.3,-1>
>     0.00, < 1,0.3,0>
>     0.25, < 0,0.3,1>
>     0.50, <-1,0.3,0>
>     0.75, < 0,0.3,-1>
>     1.00, < 1,0.3,0>
>     1.25, < 0,0.3,1>
>   }
>
> #declare MySplineB =
>   spline {
>     cubic_spline
>     -.25, <0,0,-1>
>     0.00, <1,0,0>
>     0.25, <0,0,1>
>     0.50, MySplineA(clock)
> #if (clock > 0.5)  0.60, MySplineA(clock-0.5)  #end
>     0.75, <0,0,-1>
>     1.00, <1,0,0>
>     1.25, <0,0,1>
>   }
>
> #declare ctr = 0;
> #while (ctr < 1)
>   sphere {
>     MySplineB(ctr),.25
>     pigment { rgb <1-ctr,ctr,0> }
>   }
>   #declare ctr = ctr + 0.01;
> #end

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