# Geometry :

Subject: Re: [geometry] Comparable distance from point to segment
From: Oleg Evseev (ev.mipt_at_[hidden])
Date: 2019-02-08 12:30:33

Hi Vissarion

Yes, I understand that "comparable" is not exactly that distance.
Thanks for the feedback!

Ð¿Ñ‚, 8 Ñ„ÐµÐ²Ñ€. 2019 Ð³. Ð² 14:05, Vissarion Fysikopoulos <
vissarion.fysikopoulos_at_[hidden]>:

> Hi Oleg,
> On 06/02/2019 15:53, Oleg Evseev via Geometry wrote:
>
> Hi all,
>
> [image: Ð¸Ð·Ð¾Ð±Ñ€Ð°Ð¶ÐµÐ½Ð¸Ðµ.png]
> Could someone explain to me how comparable distance works for point (P)
> and segment (AB), is it always shorten distance to line (length of red
> perpendicular from P on the pic above) or really to "limited" segment -
> nearest point _ON_ it (length of PA for the pic above)?
>
> it is shortest distance to the segment i.e. the length of PA above. Note
> also that "comparable" is not exactly that distance but omits some
> arithmetic operations for efficiency and aims in comparison of two or more
> of "comparable" distances.
>
> Best,
>
> Vissarion
>
> Thanks in advanced for help!
>
> ---
> With regards, Oleg.
>
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