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Difference between revisions of "Line of Sight"

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(-made edit to describe purposes of LoS in KanColle -edited text copied from Summer 2014 event page to suit a more general context)
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−
Currently, there are only two known purposes for Line of Sight (LoS):
+
This page is for "Effective Line of Sight" (ELoS), also called "Fleet LoS", as it pertains to branching requirements. Certain maps require the fleet to hit a certain LoS threshold in order to get routed to the boss or pre-boss. As a rule '''LoS from equipment is more important than ship LoS''' when determining ELoS.
−
* Increasing trigger chance of [http://kancolle.wikia.com/wiki/Combat#Artillery_Spotting_.28Post-Cap_Modifier.29 artillery spotting] for a ship's double/cut-in attack in daytime.
 
−
* Effective LoS, which allows the fleet to reach a specific node (usually a pre-boss or boss node) instead of being diverted to a dead end. Effective LoS is employed in special maps, such as event maps and extra operations maps (2-5, 3-5).
 
  
−
== Effective Line of Sight ==
+
For details on the LoS {{LOS}} stat, please see [[Stats#Line of Sight|Stats]].
−
* Effective LoS = Recon LoS×2 ＋ Radar LoS ＋ √(Fleet total LoS - Recon LoS - Radar LoS). This is the formula used since Spring 2014 event; in 2-5, 3-5 boss node, and any node with the seaplane-searching animation.
 
−
* '''Due to the formula, recon planes will contribute more to effective LoS than radars. For the purposes of fulfilling effective LoS, avoid using radar that does not give at least +10 LoS. '''
 
−
* '''You can make an exception to the above if your ships require other equipment for more damage, in which case you can make a DD/[[Yuubari]] a radar 'mule' to contribute to LoS by stacking radars.'''
 
−
* ONLY Recon planes' (yellow & seaplanes, which are light green planes WITHOUT A LOGO, see [http://kancolle.wikia.com/wiki/Type_0_Recon_Seaplane?file=Seaplane.png this]) LOS values are doubled. LOS from attack planes (red & blue) are not doubled, but in fact square rooted. Do not double your attack planes' LOS value when making LOS calculation.
 
−
* ''You know you fulfilled the LoS requirement if you see a short animation with a seaplane flying to the node and back to your ship icon, plus the flagship's image appearing on-screen. Otherwise, you will be diverted off-course to a dead end without the animation playing.''
 
  
−
5:06-5:11 of this video here shows what the animation looks like: http://www.youtube.com/watch?v=J-x1tNuCeSE
+
=Calculating LoS=
−
* <u>You can have a high''' total '''LoS and still '''FAIL''' the '''''effective LoS''''' requirement. Do not use the total LoS as a guide.</u>
+
===Formula 33===
 +
Formula 33, sometimes referred to as F33 is the most accurate "Fleet LoS" calculation formula known. It is described as follows<ref>http://ja.kancolle.wikia.com/wiki/%E3%83%9E%E3%83%83%E3%83%97%E7%B4%A2%E6%95%B5</ref>:
 +
{{Formula
 +
|Title=LoS Formula 33
 +
|Math=\begin{align}
 +
\text{Fleet}_\text{LoS} &= \sum_{s \in \text{Ships} } \sqrt{Ship_\text{LoS} } + C_{n} \sum_{e \in \text{Equipment} }C_{e} ( S_{e} + S_e^{\star} ) - \lceil Q \times HQ_\text{Lv} \rceil + 2M \\
 +
S_e^{\star} &= C_e^{\star} \cdot \sqrt{\bigstar_e}
 +
\end{align}
 +
|Var=<math>Ship_\text{LoS}</math> the ship's base LoS {{LOS}}.
 +
**Total LoS {{LOS}} of [[Equipment Bonuses|visible fit bonuses]] should be added to this part, unlike equipment improvement bonuses.
 +
*<math>C_{n}</math> the Node factor, it represents the weighting of the formula that is '''known to vary''' across different maps and nodes. See [[Line_of_Sight#Equipment LoS weighting modifier|following section]] for more details.
 +
*<math>C_{e}</math> the equipment multiplier (see bellow),
 +
*<math>S_{e}</math> the displayed LoS value of the equipment, excluding visible fit bonus,
 +
*<math>S_e^{\star}</math> the equipment's [[Improvement]] {{Star}} bonus to equipment LoS (see <math>C_l^{\star}</math> bellow),
 +
*<math>C_e^{\star}</math> is the improvement modifier of the equipment, ''see table bellow.
 +
*<math>\bigstar_e</math> is the improvement level {{star}} of the equipment.
 +
*<math>Q</math> the HQ level modifier, varying depending on the map:
 +
** '''0.35''' on [[5-2]] and [[6-3]].
 +
** '''0.4''' otherwise.
 +
*<math>HQ_\text{Lv}</math> the HQ level.
  
−
* If you have trouble reaching LoS requirements, take a look at the sortie page (for 2-5, 3-5) or other players' reports (for event maps) and adjust your equipment accordingly
+
*<math>M</math> the number of empty ship slots in the fleet:
 +
**'''0''' for 6 ships fleet,
 +
**'''+1''' increase per missing ship,
 +
***This value can increase mid-sortie if a ship is ''sunk'' or ''[[Evacuation|evacuated]]''.
 +
**'''-1''' for a full [[Striking Force Fleet]] (7 ships).
 +
|Notes=Equipment LoS weight more than ship LoS.
 +
}}
  
−
=== (Events) Variations in effective LoS between players ===
+
===Equipment Types===
−
During the Summer 2014 event, there were many player reports where players of similar HQ levels have differing effective LoS requirements, leading to confusion among many players. This hints to a '''<u>''possibility''</u>''' that effective LoS '''<u>scales to level.</u> Do not be surprised if you level up or reach the next HQ bracket (e.g. HQ lvl 60-99, 100+) and fail to reach boss node when you did reach the node the previous sortie.'''
+
{|class="wikitable" style="text-align:center"
 +
!colspan=2|Equipment type
 +
!width=50px|<math>C_{e}</math>
 +
!width=50px|<math>C_e^{\star}</math>
 +
|-
 +
!{{SPR}}!![[SPR|Seaplane Recons]]
 +
|1.2
 +
|1.2
 +
|-
 +
!{{SPB}}!![[SPB|Seaplane Bombers]]
 +
|1.1
 +
|1.1
 +
|-
 +
!{{YellowPlane}}!![[Carrier Recon]]s
 +
|1
 +
|1.2
 +
|-
 +
!{{BluePlane}}!![[Torpedo Bomber]]s
 +
|0.8
 +
|rowspan=5|0
 +
|-
 +
!{{GreenPlane}}!![[Fighter]]
 +
|rowspan=17|0.6
 +
|-
 +
!{{RedPlane}}!![[Dive Bomber]]s
 +
|-
 +
!{{SeaplaneFighter}}!![[SPF|Seaplane Fighters]]
 +
|-
 +
!{{ASWPlane}}!![[Liaison Aircraft]]
 +
|-
 +
!{{LargeFlyingBoat}}!![[LFB|Large Flying Boats]]
 +
|1.2
 +
|-
 +
!{{Small Radar}}!![[Small Radar]]s
 +
|1.25
 +
|-
 +
!{{Large Radar}}!![[Large Radar]]s
 +
|1.4
 +
|-
 +
!{{Sonar}}!![[Sonar]]s
 +
|rowspan=10|0
 +
|-
 +
!{{Searchlight}}!![[:Category:Searchlights|Searchlights]]
 +
|-
 +
!{{SurfaceShipPersonnel}}!![[:Category:Surface Ship Personnel|Skilled Lookouts]]
 +
|-
 +
!{{Aviation Personnel}}!![[:Category:Aviation Personnel|Aviation Personnel]]
 +
|-
 +
!{{CommandFacility}}!![[:Category:Command Facilities|Command Facilities]]
 +
|-
 +
!{{SubmarineRadar}}!![[:Category:Submarine Equipment|Submarine Equipment]]
 +
|-
 +
!{{Landing Craft}}!![[Landing Craft]]
 +
|-
 +
!{{Minisub}}!![[Midget Submarine]]s
 +
|-
 +
!{{RedGunLight}}!![[Small Caliber Main Gun]]s
 +
|}
 +
Other equipment types are speculated to be:<ref>Default based on Vita datamine</ref>
 +
*<math>C_{e}=0.6</math>
 +
*<math>C_e^{\star}=0</math>
 +
 
 +
===Equipment LoS weighting modifier===
 +
* Also known as node factor.
 +
* Depending on the map, equipment is weighted with more importance.
 +
* It is denoted as C<sub>n</sub> in the formula.
 +
* See the [[#Estimated LoS|table below]] for C<sub>n</sub> values used by each map.
 +
* Ship LoS is less effective in those maps with higher equipment weight modifiers.
 +
 
 +
===Estimated LoS===
 +
''Data sourced from [http://kc.piro.moe/nav/#/ TsunDB]. Values are the lowest and highest reported LoS for routing. Please note that there may be some margin of error due to random routing.''
 +
 
 +
{|class="wikitable" style="text-align: center"
 +
!Map!!C<sub>n</sub>!!Origin Node!!Lower Threshold!!Upper Threshold!!Destination Node!!Fail Destination!!Notes
 +
|-
 +
![[1-6]]
 +
| 3|| M|| 29.7|| 159.6|| J||L
 +
|Not meeting composition requirements also routes to L.
 +
|-
 +
!rowspan=3| [[2-5]]
 +
|rowspan=3| 1
 +
| G|| 37.3|| 87.8|| L||K
 +
|-
 +
| I|| 31.2|| 59.4|| O|| H
 +
|-
 +
| J|| 42.4|| 91.2|| O|| H
 +
|-
 +
!rowspan=2| [[3-5]]
 +
|rowspan=2| 4
 +
| G|| 24|| 337|| K|| I
 +
|-
 +
| H|| 39.1|| 321.4|| K|| J
 +
|-
 +
!rowspan=2| [[7-2]]
 +
| ??|| E|| -32.1|| 136.5|| G||F
 +
| Appears to be fixed routing based on composition but still plays the LoS routing animation.
 +
|-
 +
| 4|| I|| 66.1|| 294.5|| M|| L
 +
|-
 +
!rowspan=3| [[7-4]]
 +
| ??|| G|| ??|| ??|| L||F
 +
|-
 +
| ??|| E|| ??|| ??|| K/P||L
 +
|Not meeting composition requirements also routes to L.
 +
|-
 +
| 4|| M|| 50?|| ??|| O||N
 +
|Not meeting composition requirements also routes to N or P.
 +
|-
 +
!rowspan=2| [[7-5]]
 +
|rowspan=2|4 || O|| 57|| ??|| M||L
 +
|-
 +
| P|| 58|| ??|| T/R||S
 +
|Composition determines the T/R route.
 +
|-
 +
!rowspan=3| [[4-5]]
 +
|rowspan=2| 2
 +
| K|| 64.8|| 146.5|| T|| L
 +
|-
 +
| Q|| 62|| 167|| N/O|| P
 +
| '''Low number of reports.'''
 +
|-
 +
| ??|| O|| 62|| 167|| T|| N
 +
| Appears to be fixed routing based on composition but still plays the LoS routing animation.
 +
|-
 +
!rowspan=2| [[5-2]]
 +
|rowspan=2| 2
 +
| F|| 64|| 147|| O|| H
 +
|-
 +
| L|| 73.8|| 81|| K|| N
 +
| '''Low number of reports.'''
 +
|-
 +
!rowspan=2| [[5-4]]
 +
|rowspan=2| 2
 +
| L|| 57|| 185|| P|| N
 +
|-
 +
| M|| 42.3|| 150.1|| P|| O
 +
|-
 +
!rowspan=2| [[5-5]]
 +
|rowspan=2| 2
 +
| O|| 63.8|| 134.5|| S|| R
 +
|-
 +
| P|| 74.4|| 167.7|| S|| Q
 +
|-
 +
!rowspan=3| [[6-1]]
 +
|rowspan=3| 4
 +
| G|| 16.7|| 218.1|| H|| I
 +
|-
 +
| H<br>(With [[AS]])|| 25.4|| 201.4
 +
|rowspan=2| K
 +
|rowspan=2| E
 +
|-
 +
| H<br>(Without [[AS]])|| 23.3|| 218.1
 +
|-
 +
!rowspan=3| [[6-2]]
 +
|rowspan=3| 3
 +
| E|| 46|| 179.8|| J|| I
 +
|-
 +
| H|| 42.8|| 42.8|| K|| G
 +
| '''Low number of reports.'''
 +
|-
 +
| I|| 35.7|| 205.8|| K|| G
 +
|-
 +
![[6-3]]
 +
| 3|| E|| 19.4|| 180|| G|| F
 +
| Routing is heavily influenced by composition as well.
 +
|-
 +
!rowspan=2| [[6-5]]
 +
| 3|| G|| 56.3|| 196.2|| M|| K
 +
|-
 +
| ??|| J|| 37.2|| 193|| M|| L
 +
| Appears to be fixed routing based on composition but still plays the LoS routing animation.
 +
|}
 +
 
 +
=FAQ=
 +
 
 +
'''Q: Why do I keep getting offrouted?'''
 +
 
 +
'''A:''' Double check that your fleet LoS according to relevant formula meets the LoS threshold for the map. Viewers such as KanColle Command Center Kai, Poi Viewer, KCANotify, KanColle Viewer and Electronic Observer can calculate your fleet's LoS easily for you. 
 +
 
 +
 
 +
'''Q: How do I increase my LoS?'''
 +
 
 +
'''A:''' Reconnaissance seaplanes are the fastest way to raise LoS. The other easy way is to stack radars. Upgrades to reconnaissance seaplanes are also a good way to increase LoS when slots are limited. It is not recommended to stack carrier-based recons or seaplane bombers because too many can compromise the combat ability of your fleet.
 +
Another way is to level your ships. Because LoS increases as you level, marrying your ships means their LoS stat can go even higher.
 +
 
 +
 
 +
'''Q: I had enough LoS, how did I get off routed?'''
 +
 
 +
'''A:''' Planes that are wiped out no longer contribute to LoS. If you were depending on bombers to hit the LoS threshold, you can fall under the threshold when encountering heavy enemy anti-air.
 +
 
 +
=See Also=
 +
{{Mechanics}}

Revision as of 09:46, 14 March 2024

This page is for "Effective Line of Sight" (ELoS), also called "Fleet LoS", as it pertains to branching requirements. Certain maps require the fleet to hit a certain LoS threshold in order to get routed to the boss or pre-boss. As a rule LoS from equipment is more important than ship LoS when determining ELoS.

For details on the LoS Line of Sight stat, please see Stats.

Calculating LoS

Formula 33

Formula 33, sometimes referred to as F33 is the most accurate "Fleet LoS" calculation formula known. It is described as follows[1]:

LoS Formula 33
[math]\displaystyle{ \begin{align} \text{Fleet}_\text{LoS} &= \sum_{s \in \text{Ships} } \sqrt{Ship_\text{LoS} } + C_{n} \sum_{e \in \text{Equipment} }C_{e} ( S_{e} + S_e^{\star} ) - \lceil Q \times HQ_\text{Lv} \rceil + 2M \\ S_e^{\star} &= C_e^{\star} \cdot \sqrt{\bigstar_e} \end{align} }[/math]
With
  • [math]\displaystyle{ Ship_\text{LoS} }[/math] the ship's base LoS Line of Sight.
    • Total LoS Line of Sight of visible fit bonuses should be added to this part, unlike equipment improvement bonuses.
  • [math]\displaystyle{ C_{n} }[/math] the Node factor, it represents the weighting of the formula that is known to vary across different maps and nodes. See following section for more details.
  • [math]\displaystyle{ C_{e} }[/math] the equipment multiplier (see bellow),
  • [math]\displaystyle{ S_{e} }[/math] the displayed LoS value of the equipment, excluding visible fit bonus,
  • [math]\displaystyle{ S_e^{\star} }[/math] the equipment's Improvement Improved bonus to equipment LoS (see [math]\displaystyle{ C_l^{\star} }[/math] bellow),
  • [math]\displaystyle{ C_e^{\star} }[/math] is the improvement modifier of the equipment, see table bellow.
  • [math]\displaystyle{ \bigstar_e }[/math] is the improvement level Improved of the equipment.
  • [math]\displaystyle{ Q }[/math] the HQ level modifier, varying depending on the map:
    • 0.35 on 5-2 and 6-3.
    • 0.4 otherwise.
  • [math]\displaystyle{ HQ_\text{Lv} }[/math] the HQ level.
  • [math]\displaystyle{ M }[/math] the number of empty ship slots in the fleet:
    • 0 for 6 ships fleet,
    • +1 increase per missing ship,
      • This value can increase mid-sortie if a ship is sunk or evacuated.
    • -1 for a full Striking Force Fleet (7 ships).
Notes
  • Equipment LoS weight more than ship LoS.

Equipment Types

Equipment type [math]\displaystyle{ C_{e} }[/math] [math]\displaystyle{ C_e^{\star} }[/math]
Reconnaissance SeaplaneRecon Seaplane Recons 1.2 1.2
Seaplane BomberBomber Seaplane Bombers 1.1 1.1
Reconnaissance Aircraft Carrier Recons 1 1.2
Torpedo Bomber Torpedo Bombers 0.8 0
Fighter Fighter 0.6
Dive Bomber Dive Bombers
Seaplane Fighter Seaplane Fighters
Liaison Aircraft Liaison Aircraft
Large Flying Boat Large Flying Boats 1.2
Small RADARSmall Small Radars 1.25
Large RADARLarge Large Radars 1.4
SONAR Sonars 0
Searchlight Searchlights
Lookout Skilled Lookouts
Aviation Personnel Aviation Personnel
Command Facility Command Facilities
Submarine Equipment Submarine Equipment
Landing Craft Landing Craft
Midget SubmarineMinisub Midget Submarines
Small Caliber Main Gun Small Caliber Main Guns

Other equipment types are speculated to be:[2]

  • [math]\displaystyle{ C_{e}=0.6 }[/math]
  • [math]\displaystyle{ C_e^{\star}=0 }[/math]

Equipment LoS weighting modifier

  • Also known as node factor.
  • Depending on the map, equipment is weighted with more importance.
  • It is denoted as Cn in the formula.
  • See the table below for Cn values used by each map.
  • Ship LoS is less effective in those maps with higher equipment weight modifiers.

Estimated LoS

Data sourced from TsunDB. Values are the lowest and highest reported LoS for routing. Please note that there may be some margin of error due to random routing.

Map Cn Origin Node Lower Threshold Upper Threshold Destination Node Fail Destination Notes
1-6 3 M 29.7 159.6 J L Not meeting composition requirements also routes to L.
2-5 1 G 37.3 87.8 L K
I 31.2 59.4 O H
J 42.4 91.2 O H
3-5 4 G 24 337 K I
H 39.1 321.4 K J
7-2 ?? E -32.1 136.5 G F Appears to be fixed routing based on composition but still plays the LoS routing animation.
4 I 66.1 294.5 M L
7-4 ?? G ?? ?? L F
?? E ?? ?? K/P L Not meeting composition requirements also routes to L.
4 M 50? ?? O N Not meeting composition requirements also routes to N or P.
7-5 4 O 57 ?? M L
P 58 ?? T/R S Composition determines the T/R route.
4-5 2 K 64.8 146.5 T L
Q 62 167 N/O P Low number of reports.
?? O 62 167 T N Appears to be fixed routing based on composition but still plays the LoS routing animation.
5-2 2 F 64 147 O H
L 73.8 81 K N Low number of reports.
5-4 2 L 57 185 P N
M 42.3 150.1 P O
5-5 2 O 63.8 134.5 S R
P 74.4 167.7 S Q
6-1 4 G 16.7 218.1 H I
H
(With AS)		 25.4 201.4 K E
H
(Without AS)		 23.3 218.1
6-2 3 E 46 179.8 J I
H 42.8 42.8 K G Low number of reports.
I 35.7 205.8 K G
6-3 3 E 19.4 180 G F Routing is heavily influenced by composition as well.
6-5 3 G 56.3 196.2 M K
?? J 37.2 193 M L Appears to be fixed routing based on composition but still plays the LoS routing animation.

FAQ

Q: Why do I keep getting offrouted?

A: Double check that your fleet LoS according to relevant formula meets the LoS threshold for the map. Viewers such as KanColle Command Center Kai, Poi Viewer, KCANotify, KanColle Viewer and Electronic Observer can calculate your fleet's LoS easily for you.


Q: How do I increase my LoS?

A: Reconnaissance seaplanes are the fastest way to raise LoS. The other easy way is to stack radars. Upgrades to reconnaissance seaplanes are also a good way to increase LoS when slots are limited. It is not recommended to stack carrier-based recons or seaplane bombers because too many can compromise the combat ability of your fleet. Another way is to level your ships. Because LoS increases as you level, marrying your ships means their LoS stat can go even higher.


Q: I had enough LoS, how did I get off routed?

A: Planes that are wiped out no longer contribute to LoS. If you were depending on bombers to hit the LoS threshold, you can fall under the threshold when encountering heavy enemy anti-air.

See Also

v · e
Game Mechanics
Ship Mechanics • Equipment Mechanics
General Combat
Combat Calcultaions
Remodels/Upgrades
Others
Other
Defunct Mechanics
  1. ↑ http://ja.kancolle.wikia.com/wiki/%E3%83%9E%E3%83%83%E3%83%97%E7%B4%A2%E6%95%B5
  2. ↑ Default based on Vita datamine
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