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List:       postgis-devel
Subject:    Re: [postgis-devel] ST_CleanGeometry
From:       Andrea Peri <aperi2007 () gmail ! com>
Date:       2011-01-31 10:26:49
Message-ID: AANLkTik6u=XWeXUamRCq8CwKu1k61_kxRRJiY3fYtW3W () mail ! gmail ! com
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>Nope.
>ST_CleanGeometry is currently just a wrapper around ST_MakeValid
>returning NULL if the output is of a different type than
>the input (ie: it nulls invalid cleaning attempts)
>
>I've to admit I don't like such semantic much...

Some other tools call the Clean operation "Normalize topology"

http://www.manifold.net/doc/transform_normalize_topology.htm


-- 
-----------------
Andrea Peri
. . . . . . . . .
qwerty אטלעש
-----------------

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<pre>&gt;Nope.<br>&gt;ST_CleanGeometry is currently just a wrapper around \
ST_MakeValid<br>&gt;returning NULL if the output is of a different type \
than<br>&gt;the input (ie: it nulls invalid cleaning \
attempts)<br>&gt;<br>&gt;I&#39;ve to admit I don&#39;t like such semantic much...<br> \
</pre>Some other tools call the Clean operation &quot;Normalize \
topology&quot;<br><br><a \
href="http://www.manifold.net/doc/transform_normalize_topology.htm">http://www.manifold.net/doc/transform_normalize_topology.htm</a><br>
 <br><br>-- <br>-----------------<br>Andrea Peri<br>. . . . . . . . . <br>qwerty \
אטלעש<br>-----------------<br><br>



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