Declination - Revision history

EricChadwick: bad link

2015-05-17T22:12:47Z

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EricChadwick: Undo revision 5152 by Caustic (talk)

2015-02-25T22:45:11Z

Undo revision 5152 by Caustic (talk)

Caustic: Redirected page to Glossary#Declination

2014-10-10T01:32:04Z

Redirected page to Glossary#Declination

Cheeseplus: 1 revision

2014-07-29T08:42:27Z

1 revision

BrandonPhoenix: created declination page

2010-08-12T20:46:19Z

created declination page

New page

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{{:[[OutOfDate]]}}

= Declination =

One of the two rotational axes used by the astronomers, and also by [[RT3D]] programmers. Declination is similar to [[Pitch|pitch]]-- if you nod your head "yes," you are rotating in declination. Most [[Engines|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|azimuth]]), because they do not use [[Roll|roll]]. This is similar to the way most [[FPS|FPS]] games work. It is preferred in some RT3D engines because it keeps the [[Viewer|viewer]] level no matter where it points. But this system has a drawback because it suffers from [[GimbalLock|gimbal lock]] whenever the viewer points either straight up or straight down.
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[[Category:Glossary]]

← Older revision		Revision as of 22:45, 25 February 2015
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−	~~#REDIRECT~~ [[Glossary~~#Declination~~]]	+	Declination is one of the two rotational axes used by astronomers, and also by game programmers. Declination is similar to [[Pitch\|pitch]]-- if you nod your head "yes," you are rotating in declination.
		+
		+	Most [[Engines\|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\|azimuth]]), because they do not use [[Roll\|roll]]. This is similar to the way most [[FPS\|FPS]] games work. It is preferred in some RT3D engines because it keeps the [[Viewer\|viewer]] level no matter where it points. But this system has a drawback because it suffers from [[GimbalLock\|gimbal lock]] whenever the viewer points either straight up or straight down.
		+	----
		+	[[Category:Glossary]]

@@ Line 1: / Line 1: @@
 Declination is one of the two rotational axes used by astronomers, and also by game programmers. Declination is similar to [[Pitch|pitch]]-- if you nod your head "yes," you are rotating in declination.
-Most [[Engines|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.
+Most [[Engine|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|azimuth]]), because they do not use [[Roll|roll]]. This is similar to the way most [[FPS|FPS]] games work. It is preferred in some RT3D engines because it keeps the [[Viewer|viewer]] level no matter where it points. But this system has a drawback because it suffers from [[GimbalLock|gimbal lock]] whenever the viewer points either straight up or straight down.
 ----
 [[Category:Glossary]]

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+#REDIRECT [[Glossary#Declination]]
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-= Declination =
-−
-One of the two rotational axes used by the astronomers, and also by [[RT3D]] programmers. Declination is similar to [[Pitch|pitch]]-- if you nod your head "yes," you are rotating in declination. Most [[Engines|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|azimuth]]), because they do not use [[Roll|roll]]. This is similar to the way most [[FPS|FPS]] games work. It is preferred in some RT3D engines because it keeps the [[Viewer|viewer]] level no matter where it points. But this system has a drawback because it suffers from [[GimbalLock|gimbal lock]] whenever the viewer points either straight up or straight down.
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-[[Category:Glossary]]

← Older revision	Revision as of 08:42, 29 July 2014
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