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Deva Blackfire
coracao ardente
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Posted - 2009.02.14 09:06:00 -
[1]
 Originally by: Dread Jack
Edited by: Dread Jack on 14/02/2009 08:40:48
You can find the location of an unknown point by forming a triangle having the unknown point and two known points as the vertices. This is triangulation.
An example of this in EvE would be, a wormhole (unknown point), your ship, and one probe. I'll go along with the idea that the ship itself isn't a viable scan platform and launching two probes to form the basis of your triangle is necessary. Three probes? "Math" says it can be done with two. Whatever its a game. FOUR probes is ridiculous by any standard.
Triangulation (with 3 probes) works ONLY one one plane. If you add "depth" (or 3rd dimension) you need 4th point (probe) to get exact location. |
Deva Blackfire
coracao ardente
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Posted - 2009.02.14 09:37:00 -
[2]
Edited by: Deva Blackfire on 14/02/2009 09:43:57
Edited by: Deva Blackfire on 14/02/2009 09:42:06
But it IS fun and quite simple. Problems are:
1. interface is slow and cumbersome. There are 10000 other ways you could move probes around which would be simpler and faster at the same time
2. still lack of scatter (thus making it too easy in some cases).
3. it is almost useless for fast ship scanning.
Perfect method would be: use old scanning system for ships and new for exploration.
EDIT:
as for triangulation: you need to know 3 points. Going by wiki (which is pretty accurate on this one):
The coordinates and distance to a point can be found by calculating the length of one side of a triangle, given measurements of angles and sides of the triangle formed by that point and two other known reference points.
You need to know lenght of one triangle side. Thus A-B distance, wheras A and B are probes 1 and 2. The said "measurements of angles and sides" are to give you C - thus 3rd point/probe. So all in all even if you know only 2 points and some angles/distances you can come up with 3rd location from it. And how does it differ from having 3 known probes and unknown location around them?
As for 3d space you need 1 more point (tetrasomethingsomething - too long name for me to try and spell correctly ;p).
EDIT2:
i do have better link than wiki (with proper explanation of how it works etc) but its in Polish unfortunately, so not much of a help (tho its only equations, so if you want i can link it). |
Deva Blackfire
coracao ardente
|
Posted - 2009.02.14 09:52:00 -
[3]
Originally by: Saietor Blackgreen
OP is wrong. You need 4 points akshully.
The probes sense distance to the target, not the direction - thats what they show in the result of scan. Dont ask me why it is like that, welcome to Eve :)
Thus, if you have 3 probes with a set of 3 distances to the anomaly form each probe, there are 2 points in space that correspond to this combination.
Actually if you use 2 probles only you will see "red rings" between em. This is the area in which signature might be (need 3rd probe to get 2 locations for same sig). |
Deva Blackfire
coracao ardente
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Posted - 2009.02.14 10:23:00 -
[4]
Ahhh so thats the mathematical name for it. Thx :)
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Deva Blackfire
coracao ardente
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Posted - 2009.02.14 10:39:00 -
[5]
Originally by: Flinchey
still:
Trilateration is a method for determining the intersections of three sphere surfaces given the centers and radii of the three spheres.
same principal as triangulation
now where's the quad come in here?
read Hoshi's link. its on plane (2d) not 3d space |
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