Manifold geometry - Revision history

Arno at 19:30, 6 July 2008

2008-07-06T19:30:04Z

← Older revision		Revision as of 14:30, 6 July 2008
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	\| FS98 = unknown		\| FS98 = unknown
	}}		}}
	~~== Manifold Geometry ==~~
	Original Entry by Bill Leaming		Original Entry by Bill Leaming

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	All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!		All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!

	[[category:Aircraft ~~design~~]]		[[category:Aircraft Design]]
	[[category:Scenery ~~design~~]]		[[category:Scenery Design]]
			[[category:Modeling]]

Arno: Modeling - Manifold Geometry moved to Manifold geometry

2008-07-06T19:29:12Z

Modeling - Manifold Geometry moved to Manifold geometry

← Older revision	Revision as of 14:29, 6 July 2008
(No difference)

BASys at 15:06, 18 May 2008

2008-05-18T15:06:44Z

← Older revision		Revision as of 10:06, 18 May 2008
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	All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!		All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!

	~~[[category:FSX]]~~
	[[category:Aircraft design]]		[[category:Aircraft design]]
	[[category:Scenery design]]		[[category:Scenery design]]

BASys: Manifold Geometry moved to Modeling - Manifold Geometry: Titling rationalisation

2008-04-25T19:36:12Z

Manifold Geometry moved to Modeling - Manifold Geometry: Titling rationalisation

← Older revision	Revision as of 14:36, 25 April 2008
(No difference)

BASys at 20:19, 18 April 2008

2008-04-18T20:19:51Z

← Older revision		Revision as of 15:19, 18 April 2008
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			{{Infobox-Applicable-FSVersion
			\| FSXI = false
			\| FSXA = true
			\| FSX = true
			\| FS2004 = false
			\| FS2002 = false
			\| FS2000 = unknown
			\| FS98 = unknown
			}}
	== Manifold Geometry ==		== Manifold Geometry ==
	Original Entry by Bill Leaming		Original Entry by Bill Leaming

BASys at 18:12, 28 November 2007

2007-11-28T18:12:03Z

← Older revision		Revision as of 13:12, 28 November 2007
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	All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!		All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!

			[[category:FSX]]
	[[category:Aircraft design]]		[[category:Aircraft design]]
	[[category:Scenery design]]		[[category:Scenery design]]

N4gix: /* Manifold Geometry */

2007-10-08T03:13:29Z

Manifold Geometry

New page

== Manifold Geometry ==
Original Entry by Bill Leaming

All objects in the scene must be manifold, that is, be "water tight..."

Manifold models are models where the volume is well defined.
They have the following properties:

1. Every edge belongs to two faces.

2. Every vertex is surrounded by one sequence of edges and faces.

3. Faces only intersect each other in common edges and vertices.

4. There is a material on only one side of a face

As a very simple example, consider the humble cube object. A cube is a manifold object; it encloses a "volume of space."
Delete one face of the cube and it is no longer manifold; the "volume" is no longer fully enclosed, it "leaks..."

Another example is an "hour glass." If you were to "pinch and weld" the vertices at the "neck," the resulting object would no longer be manifold, since it is now a single object that contains two volumes of space, which is - of course - an impossibility!

All of this also means, that among other things, modelers must be very careful to have no co-linear or co-planar vertices in their geometry!

[[category:Aircraft design]]
[[category:Scenery design]]