The negative of the image is of course what I actually meant... I was
thinking in HF-Lab terms.  You can tell by my last post I think that I
was intending to use the negative.  Sorry for the confusion.

Steve


Ken wrote:
> 
> 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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