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List:       postgis-users
Subject:    Re: [postgis-users] How to set right buffer
From:       Marcin Mionskowski <mionskowskimarcin () gmail ! com>
Date:       2022-01-12 20:29:16
Message-ID: CAH_vRsFw_VH-KECmbjNhyztk6-9=3ze1e5=_tUKO5Y2uwbDe9Q () mail ! gmail ! com
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It is working for me (POSTGIS="3.2.0 c3e3cc0" [EXTENSION] PGSQL="130"
GEOS="3.8.0-CAPI-1.13.1 " PROJ="6.3.1" GDAL="GDAL 3.0.4, released
2020/01/28" LIBXML="2.9.10" LIBJSON="0.13.1" LIBPROTOBUF="1.3.3"
WAGYU="0.5.0 (Internal)" (core procs from "3.1.1 aaf4c79" need upgrade)
RASTER (raster procs from "3.1.4 ded6c34" need upgrade)).
Try to use a projected CRS or simply remove all zeros from your example - I
belive that by default those coordinate are treated as lat/lon values, in
which case N150 can cause problems.

śr., 12 sty 2022 o 20:05 Shaozhong SHI <shishaozhong@gmail.com> napisał(a):

> I tried this to set a right buffer, but it failed.
>
> Can anyone enlighten me?
>
> Regards,
>
> Shao
>
> SELECT ST_Buffer(
>  ST_GeomFromText(
>   'LINESTRING(50 50,150 150,150 50)'
>  ), 10, 'side=right');
>
>
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> postgis-users mailing list
> postgis-users@lists.osgeo.org
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>

[Attachment #5 (text/html)]

<div dir="ltr"><div class="gmail_default" style="font-family:monospace">It is working \
for me (POSTGIS=&quot;3.2.0 c3e3cc0&quot; [EXTENSION] PGSQL=&quot;130&quot; \
GEOS=&quot;3.8.0-CAPI-1.13.1 &quot; PROJ=&quot;6.3.1&quot; GDAL=&quot;GDAL 3.0.4, \
released 2020/01/28&quot; LIBXML=&quot;2.9.10&quot; LIBJSON=&quot;0.13.1&quot; \
LIBPROTOBUF=&quot;1.3.3&quot; WAGYU=&quot;0.5.0 (Internal)&quot; (core procs from \
&quot;3.1.1 aaf4c79&quot; need upgrade) RASTER (raster procs from &quot;3.1.4 \
ded6c34&quot; need upgrade)).</div><div class="gmail_default" \
style="font-family:monospace">Try to use a projected CRS or simply remove all zeros \
from your example - I belive that by default those coordinate are treated as lat/lon \
values, in which case N150 can cause problems.<br></div></div><br><div \
class="gmail_quote"><div dir="ltr" class="gmail_attr">śr., 12 sty 2022 o 20:05  \
Shaozhong SHI &lt;<a \
href="mailto:shishaozhong@gmail.com">shishaozhong@gmail.com</a>&gt; \
napisał(a):<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px \
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div \
dir="ltr">I tried this to set a right buffer, but it failed.</div><div \
dir="ltr"><br></div><div dir="ltr">Can anyone enlighten me?</div><div \
dir="ltr"><br></div><div dir="ltr">Regards,</div><div dir="ltr"><br></div><div \
dir="ltr">Shao<br><div><br></div><div><pre \
style="border-width:0px;font-family:Consolas,Monaco,monospace;border-style:solid;margi \
n-bottom:1em;margin-top:1em;overflow:auto;padding:1em;background:rgb(238,238,238) \
none repeat scroll 0% \
0%;border-radius:1em;color:rgb(46,46,46);font-size:medium">SELECT ST_Buffer(  \
ST_GeomFromText(  &#39;LINESTRING(50 50,150 150,150 50)&#39;
 ), 10, &#39;side=right&#39;);</pre><pre \
style="border-width:0px;font-family:Consolas,Monaco,monospace;border-style:solid;margi \
n-bottom:1em;margin-top:1em;overflow:auto;padding:1em;background:rgb(238,238,238) \
none repeat scroll 0% \
0%;border-radius:1em;color:rgb(46,46,46);font-size:medium"><br></pre></div></div></div>
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