On Tue, 16 Aug 2005 11:22:33 +0200, "Thomas de Groot"
<t.d### [at] internlnet> wrote:

>
>"Darren New" <dne### [at] sanrrcom> schreef in bericht
>news:4300c2ce$1@news.povray.org...
>> Thomas de Groot wrote:
>> > I have not been able to get the stereoscope working.
>>
>> Cross your eyes hard, then slowly relax until the middle pair merge.
>> Then relax the focus and you'll see it in stereo.
>>
>> It's probably easier to practice with a simpler picture, like a line
>> drawing of a hypercube projection or so.
>>
>> I'm not sure what the software is supposed to do to it?
>>
>
>Just my stupidity!!! :-(
>Just discovered that I could open the jps files with PaintShopPro! I thought
>I needed the software...
>Well...crossing my eyes... I was fairly good at that when I worked with
>aereal photographs... Gave me headaches too...
>Ok, have to try again.
>
>Thomas
>

I changed the extension to bmp and it "worked first time"

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Thomas de Groot wrote:
> I know the technique, the point is that I have not even been able to get an
> image on my screen! :-(

Oh! Save the file, and change the extension to .jpg. :-)  I'm assuming 
".jps" means stereo jpeg or some such.

As for getting headaches, it just takes practice. I learned with 
printed-out vector drawings of complex 3D circular functions. Stuff like 
you see on an oscilloscope, but in 3D, so you could follow it around 
with your eyes. Still have some here somewhere, if the thermal paper 
hasn't turned completely black. :-)

-- 
   Darren New / San Diego, CA, USA (PST)
"You're going to be late for your meeting."
      "That's OK. I can be late."
"What's it about?"
      "Someone else's problems."

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Darren New <dne### [at] sanrrcom> wrote:
> Thomas de Groot wrote:
> > I have not been able to get the stereoscope working.
>
> Cross your eyes hard, then slowly relax until the middle pair merge.
> Then relax the focus and you'll see it in stereo.
>
> It's probably easier to practice with a simpler picture, like a line
> drawing of a hypercube projection or so.

Yes.

> I'm not sure what the software is supposed to do to it?

The various stereoscope programs display the stereo data in a variety of
formats, by converting 'on the fly'. The basic .jps format is setup for
naked-eye cross-eyed viewing. The other main naked-eye format is wide-eyed
for parallel viewing; this format is also suitable for viewing with a
traditional-style stereoscope. For naked eye viewing, I prefer wide-eyed
for smaller images, but larger images need to be viewed cross-eyed.

The stereoscope software can also generate various anaglyphs and also
formats suitable for use with various LCD shutter glasses. Petersik's Java
applet also allows use of a mirror: one image on the screen is
mirror-imaged and a mirror is held vertically between the two images. One
eye sees the direct image on the screen, the other eye looks in the mirror.
This method makes fusing the two images very easy, but the reflected image
will not be as bright as the direct image.

The point of using .jps & .pns files is to keep the stereo viewing options
open, rather than having to force everyone to use the one viewing method,
or keeping multiple versions in different formats on your hard drive.

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
> "Darren New" <dne### [at] sanrrcom> schreef in bericht
> news:4300c2ce$1@news.povray.org...
> > Thomas de Groot wrote:
> > > I have not been able to get the stereoscope working.
> >
> > Cross your eyes hard, then slowly relax until the middle pair merge.
> > Then relax the focus and you'll see it in stereo.
> >
> > It's probably easier to practice with a simpler picture, like a line
> > drawing of a hypercube projection or so.
> >
> > I'm not sure what the software is supposed to do to it?
> >
>
> Just my stupidity!!! :-(
> Just discovered that I could open the jps files with PaintShopPro! I thought
> I needed the software...

Couldn't you even see the preview image? Hmmm...

> Well...crossing my eyes... I was fairly good at that when I worked with
> aereal photographs... Gave me headaches too...

I would expect a geologist to be expert at free-fusion of stereo pairs. :)

Wide-eyed viewing tends to produce less eyestrain than cross-eyed, but most
people find it hard to converge the larger wide-eyed pairs.

> Ok, have to try again.

Good luck!

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"PM 2Ring" <nomail@nomail> schreef in bericht
news:web.4303eec1b9d4c122ad93754b0@news.povray.org...
> > Just my stupidity!!! :-(
> > Just discovered that I could open the jps files with PaintShopPro! I
thought
> > I needed the software...
>
> Couldn't you even see the preview image? Hmmm...

As I tried to say, my brain sometimes takes a vacation and leaves me blank
:-)

>
> > Well...crossing my eyes... I was fairly good at that when I worked with
> > aereal photographs... Gave me headaches too...
>
> I would expect a geologist to be expert at free-fusion of stereo pairs. :)

Absolutely! But I have not used aerial photographs for many years now, and
practice has become somewhat rusty.

Thomas

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Kepler proposed that the distance relationships between the six planets known at
that time could be understood in terms of the five Platonic solids.

Actually his model and book explains little if only that their orbits were
inside one another.
And the function is still called, SolveKepler,
original data :
 from Keith Burnett translated a few times.

My question is, what should he be known for? Something that is not this ....
sort of mechanical meditation in which he engaged, while attepmting to discover
the equations ...

If he was any kind of mathematician his model could have looked like this.
#macro SolveKepler(M,ec)
  #local E = M;
  #local d = E - ec * sin(E) - M;
  #while (abs(d) > 0.00000001)
    #local delta = d / (1.0 - ec * cos(E));
    #local E = E - delta;
    #local d = E - ec * sin(E) - M;
  #end
E
#end

#macro orbital(id)
 #if (id)
  #local M = days * radians(val(elements[id][5]));
  #local p = radians(val(elements[id][3]));
  #local M = M + radians(val(elements[id][7])) - p;
  #local e = val(elements[id][6]);
  #local E = SolveKepler(M, e);
  #local r = IDS(au2km(val(elements[id][4]))) * (1.0 - e * cos(E));
  #local vv = 2.0 * atan(sqrt((1.0 + e) / (1.0 - e)) * tan(E / 2.0));
  #local o = radians(val(elements[id][2]));
  #local i = radians(val(elements[id][1]));

  #local vv = vv + p - o;
  #local e = sin(vv);
  #local p = sin(o);
  #local o = cos(o);
  #local vv = cos(vv);
  #local M = cos(i);
  #local _v = <r * (o * vv - p * e * M), r * e * sin(i), r * (p * vv + o * e *
M)>;

  #local result = pop_matrix4(orbitmatrix,_v);
 #else #local result = <0,0,0>;#end
 result
#end
//    0      1             2             3           4          5            6
        7
//Epoch,inclination, ascending node, perihelion, axis au, daily
motion,eccentricity, longitude,
// size-earthrads, name, host-id
/*

composite -depth 8 -stereo keplerR.png keplerL.png kepler.png

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Attachments:
Download 'kepler.png' (386 KB)

Preview of image 'kepler.png'

> My question is, what should he be known for?

http://en.wikipedia.org/wiki/Kepler's_laws_of_planetary_motion

ah there it is. I knew it was something like that. there is too much to know.

so does info cramming help delete old memories? I wonder ...

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"Thomas de Groot" <t.d### [at] internlnet> wrote:

> As I tried to say, my brain sometimes takes a vacation and leaves me blank
> :-)
>

you too? one of the first things I did was this biochart and even added an
on-line radiostatic random Tarot reader. ooh eee oooh, twilight zone spooky.

Not really unless you qualify everything misunderstood as demonic or evil like
the rest of the world does.

seems a brain does hang in a 33 day mental cycle as suggested by, hell I dont
know.

heres the cycle lengths from the script:
findday 23 | wavcalc 23 | wavdraw 23 5
  findday 28 | wavcalc 28 | wavdraw 28 3
  findday 33 | wavcalc 33 | wavdraw 33 12
  findday 38 | wavcalc 38 | wavdraw 38 6

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Attachments:
Download 'biochart.gif' (89 KB)

Preview of image 'biochart.gif'

Very nice.

I've been working on my own kepler monograph. Unfortunatley I'm having troube
getting the platonic solids at the correct size.

I don't suppose you would be willing to share the source?

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"Woody" <nomail@nomail> schreef in bericht 
news:web.48df8df1b9d4c12249b4acd50@news.povray.org...
>
> I don't suppose you would be willing to share the source?
>

Incidentally, the source from this image comes from me and can be found in 
p.b.s-f.
header: Kepler Solar System: model
date: August 3rd, 2005

See also my postings in the same n.g. at the date July 12th, 2005.

Thomas

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