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Real Time 3D > Declination
The following information is about declination.
declination Defined
One of the two rotational axes used by the astronomers, and also by RT3D programmers. Declination is similar to pitch-- if you nod your head "yes," you are rotating in declination. Most engines count from +90 to -90 degrees, starting out pointed straight up, turning downwards and ending pointed straight down. Straight forward is 0 degrees. Sometimes mathematicians measure it in radians, a unit of measure that comes from the magical number Pi. A radian equals Pi/180, but most people use degrees instead of radians. Astronomers use only two axes (the other axis is azimuth), because they do not use roll. This is similar to the way most FPS games work. It is preferred in some RT3D engines because it keeps the viewer level no matter where it points. But this system has a drawback because it suffers from gimbal lock whenever the viewer points either straight up or straight down.
This definition is in context to Real Time 3D. See more contextual defintions for declination.
Are you looking for additional Real Time 3D > Declination news? Try our new "Declination News Focus" area.
Off-site declination Links, User Submitted
The following links have been collected through user bookmark submission in the declination category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Wed Nov 5
Tue Oct 28
Fri Oct 24
- Magnetic Declination: I'm sorry to be the one to tell you that your compass doesn't work quite right. It doesn't really point to the north pole or the south pole. Not only that, next year it will point someplace different than it does this year! And, someday it may be completely backwards!
- How To Use Your Declination Value: A declination value represents the error between magnetic North and True North, for a specific location. Declination degree values can be either expressed as Easterly and Westerly, or as positive and negative values. Easterly declinations are represented as positive values, and Westerly declinations are represented as negative values.
- NOAA's Geophysical Data Center - Geomagnetic Data: Magnetic declination calculator and other parameters from the National Geophysical Data Center (NGDC), part of the US Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data and Information Service
Wed Oct 22
Sun Oct 19
Thu Oct 16
- Sklo?ování jmen st?edního rodu zakon?ených na -eo,- io, -ao, -uo: Declination of special czech words
Sat Oct 11
- Nebraska Astronomy Applet Project: animation that lets you manipulate latitude, time of year, etc. to experience sun's declination
Wed Oct 8
If you would like to find additional social bookmark based links on the topic of we recommend the Open Tag Directory > declination. If you would like to find related tags we recommend Tag Patterns > declination
Off-site Declination Research Links
If you still need additional information on Declination then we suggest the following off-site resources. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
- A9 > declination
- Alexa > declination
- DMOZ > declination
- Feeds Filtered > declination
- Google > declination
- News Meme > declination
- Nuah: News > declination
- The Feed Directory > declination
- OBP > declination
- Open Tag Directory > declination
- Podzy > declination
- Yahoo > declination
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