I have been writing a complicated recursive macro that draws a tree.  I have
had some success with the project, but I am now running into a message
saying "Too many nested conditionals or macros."  I know the macro does not
create an infinite loop, and I'd be happy to wait another few minutes while
it parses.  Is there a way around this?  I read something about "while"
loops and arrays, but I haven't been able to achieve the same results.

Post a reply to this message

Neddahk <Ned### [at] hotmailcom> wrote:
> I have been writing a complicated recursive macro that draws a tree.  I have
> had some success with the project, but I am now running into a message
> saying "Too many nested conditionals or macros."  I know the macro does not
> create an infinite loop, and I'd be happy to wait another few minutes while
> it parses.  Is there a way around this?

  Macros in POV-Ray have a very small stack for recursive calls, for some
reason. You can make about 100 recursive calls or so. I don't think there's
any way around that.
  You'll have to make an iterative version of your algorithm using a #while
loop. If it can't be made iterative you'll have to use #while and an array
as a stack.

-- 
                                                          - Warp

Post a reply to this message

Neddahk wrote:
> I have been writing a complicated recursive macro that draws a tree.  I have
> had some success with the project, but I am now running into a message
> saying "Too many nested conditionals or macros."  I know the macro does not
> create an infinite loop, and I'd be happy to wait another few minutes while
> it parses.  Is there a way around this?  I read something about "while"
> loops and arrays, but I haven't been able to achieve the same results.
> 
> 
How many levels of recursion do you need?  Gilles Trans' MakeTree gets excellent 
results with 5-6 levels.

I think some code text might be needed to weed the problem out.

Post a reply to this message