[postgis-users] Custom st_simplify function

Phil Bartie philbartie at gmail.com
Sat Feb 15 10:49:33 PST 2020


Would ST_Segmentize() do what you are after?
 Run it after the simplify.

https://postgis.net/docs/ST_Segmentize

Might need to use in conjunction with ST_Union()





On Sat, 15 Feb 2020 at 18:44, Alexander Gataric <gataric at usa.net> wrote:

> I mean if a line is one mile long and is simplified into five 1000 foot
> segments, I want the longest segment to be 500 feet instead of 1000 feet.
>
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> On Feb 15, 2020, at 11:47 AM, Martin Davis <mtnclimb at gmail.com> wrote:
>>
>> You mean you want to keep simplifying until there are no segments of
>> length greater than the maximum?  (Presumably excluding input segments
>> already longer?)
>>
>> On Fri, Feb 14, 2020, 1:57 PM Alexander Gataric <gataric at usa.net> wrote:
>>
>>> Is there a way to modify st_simplify to have a maximum segment length? I
>>> want to be able to limit it to 500 feet.
>>>
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