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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-->
<refentry id="fn_st_astext">
<refmeta>
<refentrytitle>st_astext</refentrytitle>
<refmiscinfo>geo</refmiscinfo>
</refmeta>
<refnamediv>
<refname>st_astext</refname>
<refpurpose>Returns the well known text (WKT) representation of the geometry.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_st_astext">
<funcprototype id="fproto_st_astext">
<funcdef><function>st_astext</function></funcdef>
<paramdef>in <parameter>g</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_st_astext">
<title>Description</title>
<para>Returns the well known text (WKT) representation of the geometry.</para>
</refsect1>
<refsect1 id="params_st_astext">
<title>Parameters</title>
<refsect2><title>g</title>
<para>Geometry point</para>
</refsect2>
</refsect1>
<refsect1 id="ret_st_astext"><title>Return Types</title>
<para>Returns varchar.</para>
</refsect1>
<refsect1 id="examples_st_astext">
<title>Examples</title>
<example id="ex_st_astext"><title>Simple Use</title>
<programlisting><![CDATA[
SQL>SPARQL
SELECT DISTINCT (bif:st_astext(?geo))
WHERE
{
?m geo:geometry ?geo .
}
LIMIT 10;
callret-0
ANY
_________________________________
POINT(-139.267 -90)
POINT(-153.833 -86.9667)
POINT(-163 -85.4167)
POINT(-170.8 -85.1167)
POINT(-142.176 -85.06)
POINT(-142.258 -85.0478)
POINT(-85.0331 -85.0378)
POINT(-142.685 -85.0307)
POINT(-143.654 -84.9921)
POINT(-143.82 -84.9851)
No. of rows in result: 10
]]></programlisting>
</example>
</refsect1>
<refsect1 id="seealso_st_astext">
<title>See Also</title>
<para><link linkend="fn_st_point"><function>st_point</function></link></para>
<para><link linkend="fn_st_x"><function>st_x</function></link></para>
<para><link linkend="fn_st_y"><function>st_y</function></link></para>
<para><link linkend="fn_st_distance"><function>st_distance</function></link></para>
<para><link linkend="fn_ST_SRID"><function>st_srid</function></link></para>
<para><link linkend="fn_ST_SetSRID"><function>st_setsrid</function></link></para>
<para><link linkend="fn_st_geomfromtext"><function>st_geomfromtext</function></link></para>
<para><link linkend="fn_st_intersects"><function>st_intersects</function></link></para>
<para><link linkend="fn_st_contains"><function>st_contains</function></link></para>
<para><link linkend="fn_st_within"><function>st_within</function></link></para>
<para><link linkend="fn_isgeometry"><function>isgeometry</function></link></para>
<para><link linkend="fn_geo_insert"><function>geo_insert</function></link></para>
<para><link linkend="fn_geo_delete"><function>geo_delete</function></link></para>
<para><link linkend="fn_rdf_geo_add"><function>DB.DBA.RDF_GEO_ADD</function></link></para>
<para><link linkend="fn_rdf_geo_fill"><function>DB.DBA.RDF_GEO_FILL</function></link></para>
</refsect1>
</refentry>
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