Re: Calculating the Sun's position on a point on Earth sougth
- To: mathgroup at smc.vnet.net
- Subject: [mg37543] Re: Calculating the Sun's position on a point on Earth sougth
- From: Rolf Schramek <rolf.schramek at rz.hu-berlin.de>
- Date: Mon, 4 Nov 2002 02:44:21 -0500 (EST)
- References: <apv91f$rdc$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hello,
nice idea!
At a first glance I learned that mathematica has not a very good coordinate
system to do that.
The "sun" is positioned according to a coord. system that corresponds to
your *look* at the system.
Lets think further about this, as I said, I like the idea.
The way of the sun might look like this (sorry, I copied directly from the
notebook):
For[i=1,i\[LessEqual] \[Pi],i=i+\[Pi]/10,
Show[Graphics3D[Cuboid[{-1.5,-3,0},{1.5,3,4}]]
,PlotRange->{{-5,5},{-5,5},{0,10}}
,LightSources\[Rule]{{{Cos[i],0,Sin[i]},RGBColor[0,1,0]}}
]
]