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Motiejus Jakštys 2021-05-19 23:13:59 +03:00 committed by Motiejus Jakštys
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@ -1,117 +0,0 @@
Self-line crossing when cutting a bend
--------------------------------------
The self-line-crossing may happen after a few bends have been skipped. E.g.
ends of A<->B cross the line, but "swallow" a few more in between:
,______
/ \
|___A | \ \
\ | B\ | __
\ | | | / \
/ | | |___,---,___/A |
/ | \_________________|
\ |
\ | \ \
/ / B\ | _ __
----/ / | | / \ / \
/ ,____/ | |___/ \___/A |
/ B| \_________________|
|
If a bend with 180+ deg sum of inflection angles is found, its line between
inflection angles (AB in our examples) must be crossed with all the other bends
to detect a possible line-crossing. This is O(N*M), where N is the total number
of line segments, and M is the number of qualifying bends. It is expensive.
Also, there is another way to remove self-crossing, without removing most of
the bend. E.g. from:
\ /
B\ | __
| | / \
| |____/A |
\__________|
Instead of:
\ /
\/ A'
B
To:
\ \_
B\ `-,_.__
| A' \
| |
\__________|
But perhaps it doesn't look quite as natural. I will trust the original
article to do the right thing here and remove the bend altogether.
ALSO: the bends should be iterated from different directions:
for i := 0; i < len(bends); i++ {
for j := 0; j < i; j++ {
...
}
for j := len(bends); j > i; j-- {
...
}
}
So if there are multiple bends between the baseline, they will be cut
correctly.
The Context of a Bend
---------------------
Similar bends:
> For example, if bend 1 has four unit areas and bend 2 has six unit areas, the
> average size is five units, and the normalized areas of bends 1 and 2 are
> 4/5=0.8 and 6/5=1.2, respectively.
My comment: everything until this sentence is clear. However, "unit areas" is
misleading: there is little reason to normalize areas, but leave the distances
intact (if we'd like to normalize areas, it would make sense to square-root
them).
Removing that removes changes the meaning of the sentence that **euclidean
distance** is normalized (the composite of the bend properties), rather than
a single component.
Offered structure
-----------------
- Introduction
- Previous research overview
- Methodology and methodics
- Results
- Conclusions
- Literature review
- Appendix
for 2021-04-19
--------------
- literatūros šaltinių analizė
- literatūros šaltinių priskyrimas atskiroms magistro darbo struktūrinėms dalims
analizės uždaviniai:
- galutinis problemos formulavimas
- darbo tikslo formulavimas
- uždavinių formulavimas
- aktualumo
- naujumo
- pritaikomumo formulavimas
Angl.:
- trūksta literatūros apžvalgos: pervadinti šiuolaikinius sprendimus į tai
- mažiausiai 2 poskyriai skyriuje.
- techninė dalis -- į rezultatus.
- "eksperimento rezultatai" eina į "darbo rezultatus".