Stephen Lavedas wrote:
> 
> > > Huh?
> > >
> > > If the sphere is constructed as a mesh, meshes are hollow, and thus
> > > mountains in the univerted image will become mountains on
> > > the sphere interior.
> > >
> > > Dan
> > >
> > > --
> > > http://www.flash.net/~djconnel/
> >
> > Ha !
> >
> >   I said "If you invert the HF IMAGE that Leveller uses for height
> > elevation points...".
> >
> >   What needs to be done for this to work is to invert the HF elevation
> > data in the HF image itself. I suppose it's possible - just need to
> > rethink the way one makes positive elevation HF's in the first place.
> >
> > --
> > Ken Tyler
> >
> > tyl### [at] pacbellnet
> Ken, you are thinking yourself in circles.  Think about it this way.  If
> you take white text on a black background and map it around a sphere,
> you get text protruding from the outside of the sphere.  If you take
> text in black and background white, you get text protruding INTO the
> sphere.  Now, granted, the scaling isn't exactly right (you have a
> sphere of radius R+1 and the text is at radius R, but it is still
> projected on the interior.  That means that the mountains would then be
> on the inside.  All I would do to my program would be to subtract the
> height value from the sphere's radius instead of add it.  It ends up
> being very close to the same.  Now I don't know if you are making a
> Dyson's sphere (which I doubt since you dislike making space scenes), or
> if you are making a Geode, or what but I doubt that you will have too
> much difficulty due to the slight innaccuracy of the inverted image.
> 
> Steve

Thinking in circles is what's required for this spherical project :)

What you should say and haven't is that instead of inverting the HF
images I can get the results needed by producing a negative of the
original. This will give me the negative values I need to work right.
Thought about that just after my last post. PSP to the rescue.

Actually without giving to much away it's going to be an inside out world.
Well hopefully. Anyway I think I figured away around it without any
further help and thank all who responded. If not I'll just give up
and try something else.

-- 
Ken Tyler

tyl### [at] pacbellnet

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