Hi,

I am using a spline, with randomly generated points. I use a while loop for 
placing spheres on the points of the spline. I want to set the first point 
of the spline myself, instead of randomly generated. How can I do that? I 
tried the following:

spline {
 natural_spline
  0,MyPoint
  // ...here is the code for the randomgenerator...
 }

But that doesn't work. First the randomgenerator and then my point didn't 
work either.


Thank you very much for your help!

J T

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J T <jte### [at] chellonl> wrote in message
news:oprto4gdzg7d64w7@news.povray.org...
> Hi,
>
> I am using a spline, with randomly generated points. I use a while loop
for
> placing spheres on the points of the spline. I want to set the first point
> of the spline myself, instead of randomly generated. How can I do that? I
> tried the following:
>
> spline {
>  natural_spline
>   0,MyPoint
>   // ...here is the code for the randomgenerator...
>  }
>
> But that doesn't work. First the randomgenerator and then my point didn't
> work either.
>

I don't think you can have the generator code within the spline definition.
I did something like that & I had to declare ;
    array points[num_points] { my_point, ,,(fill rest of array with
randomgenerator),, }

Then build the spline from the array;
    spline {
        natural_spline
         0, points[0], points[1], ,,(on out to num_points...)
    }

RG

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In article <oprto4gdzg7d64w7@news.povray.org>,
 J T <jte### [at] chellonl> wrote:

> spline {
>  natural_spline
>   0,MyPoint
>   // ...here is the code for the randomgenerator...
>  }
> 
> But that doesn't work. First the randomgenerator and then my point didn't 
> work either.

Put a comma after MyPoint? If that doesn't work...what is the code 
you're using for the random point generator?

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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Christopher James Huff wrote:
>In article <oprto4gdzg7d64w7[at]news.povray.org>,

>Put a comma after MyPoint? If that doesn't work...what is the code
>you're using for the random point generator?
>


Yeah, it does work!

I had to generate random points before and always got an error about some
code found where some value was expected, so I just figured that a spline
didn't like to see code in the definition.

This post made me go back and play around with it some more.  Don't know
what I was doing before, but it works fine now!

RG  -  yet another question answered that I didn't ask

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