Cousin Ricky <ric### [at] yahoocom> wrote:

> A sky sphere would use a different formula, but the math would be similar.

Has anyone to date used the catalogue to generate a fairly realistic spherical
sky shell or a flat image useful for uv-mapping a sphere?

I'd like to be able to incorporate this into the solar system scene I've worked
on, if I get the time to focus on it, and I have another project where I'd like
to be able to look up from a given position on earth at a certain angle at a
given date and time and see a reasonably accurate view.

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"Bald Eagle" <cre### [at] netscapenet> wrote:

> Has anyone to date used the catalogue to generate a fairly realistic spherical
> sky shell or a flat image useful for uv-mapping a sphere?

Does anyone here know [how to contact] this chap?
https://www.youtube.com/watch?v=bvpEWuxBBRw

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Am 1/14/20 8:38 PM, also sprach Bald Eagle:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
> 
> 
> Does anyone here know [how to contact] this chap?
> https://www.youtube.com/watch?v=bvpEWuxBBRw
> 
How many Geoff Dallimore(s) can there be?  Google thinks you want the
UK patent attorney, who looks like the guy in the thumbnail on youtube.

If you comment on the video, I'm pretty sure he'll get an email.  Or you 
can try his contact form: http://xpatent.co.uk/contact/

-- 
dik
Rendered 49,882,521,600 of 49,882,521,600 pixels (100%)

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Cousin Ricky <ric### [at] yahoocom> wrote:
> I have extracted some of the data fields from the Yale Bright Star
> Catalogue and converted ...

Hum when it comes time to generate a view if this library,
if your library is in 3D points, not ra dec, you'll save thousands of trig
functions, and the time.

seta(1,146180222.862047,-139516389.855953,-37392435.96208,5.1);
seta(2,65647206.128445,-80763375.119065,-16312013.815614,4.7);
seta(3,135031719.98319,-145513040.060053,-31389042.949954,5.3);

times 10,000,000 = miles, and there's your distance.

I already made a bright star catalog converted to pov, in 3D points, if anyone
is interested.

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"Melody" <nomail@nomail> wrote:

> I already made a bright star catalog converted to pov, in 3D points, if anyone
> is interested.

Yes, that would be a very useful thing, indeed.
Are there comments of any sort to assist in highlighting the various
constellations, or is it just bare-bones at the moment?

I still have to wrap my head around the ephemerides and the orbital elements to
be able to position everything where it needs to be at the proper times...

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"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Melody" <nomail@nomail> wrote:
>
> > I already made a bright star catalog converted to pov, in 3D points, if anyone
> > is interested.
>
> Yes, that would be a very useful thing, indeed.
> Are there comments of any sort to assist in highlighting the various
> constellations, or is it just bare-bones at the moment?
>
> I still have to wrap my head around the ephemerides and the orbital elements to
> be able to position everything where it needs to be at the proper times...

Constellation boundaries points is another set of points.
Got it all in 3 languages.

POV
http://trueinnerbeing.x10host.com/charts/planetarium45.zip

JS
http://trueinnerbeing.x10host.com/charts/jtarium232full-opac.zip
http://trueinnerbeing.x10host.com/charts/jtarium.html
(ctrl-F8 titles are links to APOD)

OpenGL
http://trueinnerbeing.x10host.com/code/gamemode.zip
http://trueinnerbeing.x10host.com/code/code.html

all to grok really, is that camera matrix is "inverted"
and you just pipe everything thru the world matrix.

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POV
http://trueinnerbeing.x10host.com/planetarium45.zip

JS
http://trueinnerbeing.x10host.com/jtarium232full-opac.zip

maybe those?

well I should have checked the links, server is being finicky.
I can ftp /charts/ links, browser says not there.

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"Melody" <nomail@nomail> wrote:
> POV
> http://trueinnerbeing.x10host.com/planetarium45.zip


here's the fleet,

http://news.povray.org/povray.binaries.images/attachment/%3Cweb.485747fce7b65d90d361a0c10%40news.povray.org%3E/fleet05.
png

using the glow function for the stars, (too much glow)
and type for the color.

so you want to go star trek, then, I got many models.

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"Melody" <nomail@nomail> wrote:
> POV
> http://trueinnerbeing.x10host.com/planetarium45.zip

Yes, that worked.

When trying to run pld.pov, I get:

Parse Error: Cannot pass uninitialized identifier to non-optional LValue.
at File: megatime.inc Line: 80 Col: 17

/////////////////////////////////////////////////////////////// AutoDate
MegaPov
//#version unofficial MegaPov 1.21;
#version 3.63;

#declare Time = date("%H:%M:%S")
#declare Date = date("%B %d %Y")
////////////////////////////////////////////////////////////// TimeZone
#declare DST = 1;
#declare GMT = 0;
#declare TimeZone = -6 + DST;
#declare JulianDate = julian(val(date("%Y")),val(date("%m")),val(date("%d")));
#declare ctime = j2ctime(JulianDate);

j2datetime(JulianDate)


presumably that needs to be updated to use datetime()
http://wiki.povray.org/content/Reference:Numeric_Expressions
#local CurrentTime = datetime(now); // current date and time as a string


I will fiddle with it as time allows.
Very nice little site you have.   Lots of very interesting information.
I need whatever vitamins you take   :D

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"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Melody" <nomail@nomail> wrote:
> > POV
> > http://trueinnerbeing.x10host.com/planetarium45.zip
>
> Yes, that worked.
>
>
> I will fiddle with it as time allows.
> Very nice little site you have.   Lots of very interesting information.
> I need whatever vitamins you take   :D
lol

Don't know if the last one posted. Version 3.63 or Mega POV for date.
That will not run. thought you just wanted the data. to run that you need maps.

 http://trueinnerbeing.x10host.com/maps1.zip
but that link is not working yet. is there another place?
10 meg for the maps

3 sub dirs
clouds
maps
sats

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