On Wed, 16 Jan 2002 00:35:58 +0900, "R. Suzuki" <r-s### [at] aistgojp> wrote:
> However, to determine the parameters, the user need to know the
> max_gradient value.  But the current beta does not report the
> max_gradient value if 'evaluate' is used... That is not consistent with
> POV-Help.

I can confirm with POV 3.5 b 10.icl on PII 233 128 MB with NT 4 Sp 6

ABX
--
disc{z,-z 5#macro O()asc(substr("-+((1*(,1,/.-,*/(,&.323/'1"e,1))*.1-4#declare
e=e-1;#end#local e=26;pigment{#local g=function(_){ceil(_)-_}function#local//X
k=function{pattern{object{sphere_sweep{linear_spline 13#while(e>0)<O(),O()//AB
>.01#end}}}}{k(g(atan2(x,y)),g(ln((y+x)^2+1e-5)),0)}}finish{ambient 1}}//POV35

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