Geometry Boost List: Re: [geometry] Merge some partial lines

From: Adam Wulkiewicz (adam.wulkiewicz_at_[hidden])
Date: 2019-09-19 16:12:14

W dniu 19.09.2019 o 15:09, Mateusz Loskot via Geometry pisze:
> On Thu, 19 Sep 2019 at 13:01, Ahmet Temiz via Geometry
> <geometry_at_[hidden]> wrote:
>> I want to merge some partial lines (roads) to a continuous single line based on certain proximity.
>>
>> Can you guide me to use relevant function?
> Have you browsed through the API reference for potential candidates?
>
> For example, this one
> https://www.boost.org/libs/geometry/doc/html/geometry/reference/algorithms/append.html
> and this may be helpful
> https://github.com/boostorg/geometry/blob/develop/example/02_linestring_example.cpp

Well, I don't know if that's what is needed here. AFAIU there is some 
reference line (linestring or segment?) and the problem is that some 
other lines that are closer than some distance threshold should be 
filtered out from a set of these other lines. Is that correct? If it is 
then you probably only need bg::distance() or bg::comparable_distance(). 
But these functions will return the minimum distance between two 
linestrings so if you define proximity differently then you'll need 
something else.

So if the above does not apply please expand the explanation of the 
problem defining what does "partial lines", "merge", "continuous single 
line" and "proximity" mean exactly.

Adam