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On 04.11.2025 12:17, Bald Eagle wrote:
> "Leroy" <whe### [at] gmail com> wrote:
>
>> #declare S_PX2 = function {
>> spline{
>> linear_spline
>> #for(S_K, 0, S_NSites2D-1)
>> S_K, A1D_V_P2D[S_K].x,
>> #end
>> }}
>
> Yes and that is indeed what I did.
>
> However it seems to be bad behaviour by the parser, and locks the spline into a
> single-use object.
>
> IIRC, I can use pre-declared splines in sphere_sweep without a problem.
>
> The inability falls under the "contrary to user expectation", and that's why
> it's in this section.
Not behaves exactly as designed: The function parser cannot handle
declared objects because you are falling into the POV-Ray declares are
not macros trap. The parser first needs to know that you want a spline
function, then it can make use of the spline object.
Thorsten
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