Mike Horvath <mik### [at] gmailcom> wrote:
> On 7/21/2018 2:36 AM, posfan12 wrote:
> > "And" <49341109@ntnu.edu.tw> wrote:
> >> Hi,
> >> I have a method using isosurface render spheroid shell below.
> >>
> >> use this two function
> >>
> >> #declare f_spheroid=function(var1,var2,var3, a,b){
> >> var1*var1/a/a+var2*var2/a/a+var3*var3/b/b-1
> >> }
> >>
> >> #declare f_spheroid_normalized=function(var1,var2,var3, a,b){
> >> f_spheroid(var1,var2,var3, a,b)
> >> /sqrt(4*(var1*var1+var2*var2)/pow(a,4)+4*var3*var3/pow(b,4))
> >> }
> >>
> >>
> >> //than difference these two isosurfaces
> >> difference{
> >> isosurface{
> >> function{f_spheroid(x,y,z,1,3)}
> >> }
> >> isosurface{
> >> function{f_spheroid_normalized(x,y,z,1,3)+thickness}
> >> }
> >> }
> >
> >
> > (This may be a double post. Not sure. Sorry!)
> >
> > The above function as the "a" and "b" parameters for the ellipsoid. How do I add
> > the "c" parameter for the third axis? I can see where it goes in "f_spheroid",
> > but I don't understand "f_spheroid_normalized". Thanks.
> >
> >
> > Mike
> >
>
> Never mind. I figured it out.
>
> Mike

Is it ok?

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