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Difference between revisions of "Line of Sight"

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__NOTOC__
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=Introduction=
Currently, there are three known purposes for Line of Sight (LoS):
 
* Increasing success rate in the detection phase, which allows participation in aerial combat.
 
* A higher '''Fleet total LoS''' (FLoS) [[Artillery_Spotting#Trigger_Chance|positively correlates]] with the trigger chance of [[Combat#Combat_Equipment_Setups|artillery spotting]] for a ship's double/cut-in attack in day battle. Fleet total LoS is simply the summation of all LoS stats from your ships, including bonus from the equipment.
 
* '''Effective LoS '''(ELoS), 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 [[Events|event maps]] and extra operations maps ([[World 2#2-5|2-5]], [[World_3#3-5|3-5]]).
 
* There are special formula being used to calculate ELoS. As a general consensus, LoS bonus from equipment (esp. recon planes) are more important than individual ship's LoS stats.
 
  
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This page is for Effective Line of Sight (ELoS) as it pertains to branching requirements. Certain maps require your 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.
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For a details on the LoS {{LOS}} stat, please see [[Stats#Line of Sight|Stats]].
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=Calculating LoS=
 
===Formula 33===
 
===Formula 33===
 
Similar to the New Fall Simplified formula, but reportedly more accurate. Using this model, a value of 31 eLoS would guarantee failing the 2-5 LoS check, while a value of 33 eLoS would succeed 100% of the time. 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>:
 
Similar to the New Fall Simplified formula, but reportedly more accurate. Using this model, a value of 31 eLoS would guarantee failing the 2-5 LoS check, while a value of 33 eLoS would succeed 100% of the time. 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>:
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</math>
 
</math>
  
*<math>L_s</math> is the ship's base LoS
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*<math>L_s</math> is the ship's base LoS.
*<math>C_{n}</math> is the node factor, it represents the weighting of the formula that is '''known to vary''' across different maps and nodes. For example, in 6-2, the node factor of C<sub>n</sub> = 3 means that equipment is 3 times as important compared to the original formula (as tested in 6-2-F/H). See following section for more details.
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*<math>C_{n}</math> is 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_{l}</math> is the equipment multiplier:
 
*<math>C_{l}</math> is the equipment multiplier:
 
**Carrier-Based Fighter: 0.6
 
**Carrier-Based Fighter: 0.6
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**Large Flying Boat: 0.6
 
**Large Flying Boat: 0.6
 
**Seaplane Fighter: 0.6
 
**Seaplane Fighter: 0.6
*<math>S_{l}</math> is the displayed LoS value of the equipment
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*<math>S_{l}</math> is the displayed LoS value of the equipment.
*<math>S_l^{\star}</math> is the equipment's improvement bonus to eLoS
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*<math>S_l^{\star}</math> is the equipment's improvement bonus to eLoS.
 
**This is calculated by multiplying <math>C_l^{\star}</math>, the improvement multiplier of that equipment, with the square root of the equipment's improvement level.
 
**This is calculated by multiplying <math>C_l^{\star}</math>, the improvement multiplier of that equipment, with the square root of the equipment's improvement level.
 
***The improvement multiplier of Small Radars is 1.25, Large Radars is 1.4, Reconnaissance Seaplanes is 1.2, and Searchlight is 0 (that is, it receives no eLoS bonus when improved)
 
***The improvement multiplier of Small Radars is 1.25, Large Radars is 1.4, Reconnaissance Seaplanes is 1.2, and Searchlight is 0 (that is, it receives no eLoS bonus when improved)
*<math>H</math> is the HQ level. The ceil operation means that the value is rounded up every 2.5 HQ levels.
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*<math>H</math> is your HQ level. The result is rounded up to the nearest whole number.
*<math>M</math> is an additional variable representing the number of empty ship slots in your fleet. For instance, if your fleet contains only 2 ships, <math>M</math> would be 4 and thus <math>2M</math> would yield 8.
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*<math>M</math> is the number of empty ship slots in your fleet.
 
**It is unknown whether this value increases mid-sortie if a ship disappears from your fleet (e.g. sinking).
 
**It is unknown whether this value increases mid-sortie if a ship disappears from your fleet (e.g. sinking).
  
====Equipment LoS weighting modifier====
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===Equipment LoS weighting modifier===
*Also known as node factor
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* Also known as node factor.
*In some maps, weighting of equipment would be higher than that others.
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* Depending on the map, equipment is weighted with more importance.
*It is represented as C<sub>n</sub> in the formula.
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* It is denoted as C<sub>n</sub> in the formula.
*For all tested nodes, C<sub>n</sub> for 2-5 is 1, for 3-5 and 6-1 are 4, for 6-2 and 6-3 are 3.
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* For all tested nodes, C<sub>n</sub> for 2-5 is 1, for 3-5 and 6-1 are 4, for 6-2 and 6-3 are 3.
**That mean equipment LoS are 3 times more important in 6-2 and 6-3 compare to 2-5 and four time as important in 3-5 and 6-1.
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** This means equipment LoS is 3 times more important in 6-2 and 6-3 compared to 2-5 and 4 times as important in 3-5 and 6-1.
**In other words, ship LoS are less effective in those maps with higher equipment weighting modifier.
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** Ship LoS is less effective in those maps with higher equipment weight modifiers.
*In 2-5, F33(C<sub>n</sub>=1) have to be larger than 31 to have a chance to enter boss and 33 to guarantee boss entry.
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*In 2-5, F33(C<sub>n</sub>=1) have to be 31< to have a chance to enter boss and 33≤ to guarantee branching to the boss.
*In 6-2, F33(C<sub>n</sub>=3) have to be less than 43 to guarantee F>H and more than 40 to guarantee H>K
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*In 6-2, F33(C<sub>n</sub>=3) have to be 43> to guarantee F>H and 40< to guarantee H>K.
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=FAQ=
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'''Q: Why do I keep getting offrouted?'''
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'''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. 
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'''Q: How do I increase my LoS?'''
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'''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.
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Another way is to level your ships. Because LoS increases as you level, marrying your ships means their LoS stat can go even higher.
  
  
== Effective Line of Sight (old formula) ==
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'''Q: I had enough LoS, how did I get off routed?'''
* '''OUTDATED AND SHOULD NOT BE USED'''
 
* 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 radars that do 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.
 
* <s>ONLY Recon planes' (yellow & seaplanes) LoS values are doubled. LoS from carrier-based bomber planes (red & blue) are not doubled, but in fact square rooted. Avoid doubling dive bomber and torpedo bomber LoS values when calculating LoS.</s> [It is currently uncertain whether LOS from bombers contribute to Recon LOS (x2) or Fleet LOS (sqrt). Testing required.]
 
* ''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
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'''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.
* You can have a high''' total '''LoS and still fail the '''''effective LoS''''' requirement. '''<u>Do not use the total LoS as a guide.</u>'''
 
  
* 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
 
=== (Events) Variations in effective LoS between players ===
 
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 hinted to a ''possibility'' that effective LoS scales to level. 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.
 
  
== Effective Line of Sight (new formula) ==
 
*'''DEPRECATED, RECOMMENDED NOT TO USE'''
 
With the advent of the 2014 Fall Event a new formula for Effective LoS has been devised to account for inconsistencies of the old formula. ([http://wikiwiki.jp/kancolle/?%C6%EE%C0%BE%BD%F4%C5%E7%B3%A4%B0%E8#area5 Source 1]) ([http://ch.nicovideo.jp/biikame/blomaga/ar663428 Source 2])
 
* Effective LoS = Dive Bomber LoS x (1.04) + Torpedo Bomber LoS x (1.37) + Carrier-based Recon Plane LoS x (1.66) + Recon Seaplane LoS x (2.00) + Seaplane Bomber LoS x (1.78) + Small Radar LoS x (1.00) + Large Radar LoS x (0.99) + Searchlight LoS x (0.91) + √(base LoS of each ship) x (1.69) + (HQ Lv. rounded up to the next multiple of 5) x (-0.61)
 
* √(base LoS of each ship) x (1.69) = Calculate the square root of each ship's LoS (base value without any equipment) separately, then add the values together and multiply by 1.69
 
* Regarding the HQ Level: For example, if your HQ Lv. is 101~105, use 105. If it's 106~110, use 110. And so on.
 
Excel file that calculates the fleet's LOS for you: http://1drv.ms/1IlzXGX (courtesy of [[User:Kouma231|Kouma231]])
 
<br>
 
 
{{Mechanics}}
 
{{Mechanics}}

Revision as of 05:39, 26 September 2019

Introduction

This page is for Effective Line of Sight (ELoS) as it pertains to branching requirements. Certain maps require your 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 a details on the LoS Line of Sight stat, please see Stats.


Calculating LoS

Formula 33

Similar to the New Fall Simplified formula, but reportedly more accurate. Using this model, a value of 31 eLoS would guarantee failing the 2-5 LoS check, while a value of 33 eLoS would succeed 100% of the time. It is described as follows[1]:

[math]\displaystyle{ \begin{align} \phi &= \sum_{s \in \text{Ships}} \sqrt{L_s} + C_{n} \sum_{l \in \text{Slots}}C_{l} ( S_{l} + S_l^{\star} ) - \lceil 0.4 H \rceil + 2M \\ S_l^{\star} &= C_l^{\star} \cdot \sqrt{\bigstar_l} \end{align} }[/math]

  • [math]\displaystyle{ L_s }[/math] is the ship's base LoS.
  • [math]\displaystyle{ C_{n} }[/math] is 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_{l} }[/math] is the equipment multiplier:
    • Carrier-Based Fighter: 0.6
    • Carrier-Based Dive Bomber: 0.6
    • Carrier-Based Torpedo Bomber: 0.8
    • Carrier-Based Reconnaissance Aircraft: 1
    • Reconnaissance Seaplane: 1.2
    • Seaplane Bomber: 1.1
    • Small Radar: 0.6
    • Large Radar: 0.6
    • ASW Patrol Aircraft: 0.6
    • Searchlight (Small and Large): 0.6
    • Fleet Command Facility: 0.6
    • SCAMP: 0.6
    • Skilled Lookouts: 0.6
    • Sonar: 0.6
    • Large Flying Boat: 0.6
    • Seaplane Fighter: 0.6
  • [math]\displaystyle{ S_{l} }[/math] is the displayed LoS value of the equipment.
  • [math]\displaystyle{ S_l^{\star} }[/math] is the equipment's improvement bonus to eLoS.
    • This is calculated by multiplying [math]\displaystyle{ C_l^{\star} }[/math], the improvement multiplier of that equipment, with the square root of the equipment's improvement level.
      • The improvement multiplier of Small Radars is 1.25, Large Radars is 1.4, Reconnaissance Seaplanes is 1.2, and Searchlight is 0 (that is, it receives no eLoS bonus when improved)
  • [math]\displaystyle{ H }[/math] is your HQ level. The result is rounded up to the nearest whole number.
  • [math]\displaystyle{ M }[/math] is the number of empty ship slots in your fleet.
    • It is unknown whether this value increases mid-sortie if a ship disappears from your fleet (e.g. sinking).

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.
  • For all tested nodes, Cn for 2-5 is 1, for 3-5 and 6-1 are 4, for 6-2 and 6-3 are 3.
    • This means equipment LoS is 3 times more important in 6-2 and 6-3 compared to 2-5 and 4 times as important in 3-5 and 6-1.
    • Ship LoS is less effective in those maps with higher equipment weight modifiers.
  • In 2-5, F33(Cn=1) have to be 31< to have a chance to enter boss and 33≤ to guarantee branching to the boss.
  • In 6-2, F33(Cn=3) have to be 43> to guarantee F>H and 40< to guarantee H>K.

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.