What is the meaning of できる in 「影{かげ}がどこにできる」?


The context is the following:

>
> 日時計{ひどけい}は太陽{たいよう}の位置{いち}が変{か}わるのを利用{りよう}して、影{かげ}がどこにできるかで時間{じかん}が分{わ}かる時計{とけい}です。

My best guess is that できる takes the meaning of growing, as the place where the
shadow extends/grows to, but I'm not completely sure of it. My attempt at a
translation would be "The sundial utilizes the change in position of the sun
and tells the time by the place where (its) shadow extends to."

_Is my assumption and translation correct?_




Try thinking of this 〜ができる more along the lines of "〜 didn't used to exist,
but now it does". This is closest to [#1
here](https://dictionary.goo.ne.jp/word/%E5%87%BA%E6%9D%A5%E3%82%8B_%28%E3%81%A7%E3%81%8D%E3%82%8B%29/),
but can be applied in a general sense to many of the other definitions given.

Ex)

彼女ができた。→ A girlfriend didn't used to exist, but now she does. → (Contextually
defined person) got a girlfriend.

顎に大量のニキビができて治らない。→ On (contextually defined person's) chin many zits that
weren't there before are now there, and they won't heal. → (Contextually
defined person) got a bunch of zits on their chin and they won't go away.

影がどこにできるかで時間が分かる。 → Based on where a/the shadow goes from not existing to
existing, the time is understood. → The time is understood based on where
a/the shadow falls.




Try thinking of this 〜ができる more along the lines of "〜 didn't used to exist,
but now it does". This is closest to [#1
here](https://dictionary.goo.ne.jp/word/%E5%87%BA%E6%9D%A5%E3%82%8B_%28%E3%81%A7%E3%81%8D%E3%82%8B%29/),
but can be applied in a general sense to many of the other definitions given.

Ex)

彼女ができた。→ A girlfriend didn't used to exist, but now she does. → (Contextually
defined person) got a girlfriend.

顎に大量のニキビができて治らない。→ On (contextually defined person's) chin many zits that
weren't there before are now there, and they won't heal. → (Contextually
defined person) got a bunch of zits on their chin and they won't go away.

影がどこにできるかで時間が分かる。 → Based on where a/the shadow goes from not existing to
existing, the time is understood. → The time is understood based on where
a/the shadow falls.

