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<?xml version="1.0" encoding="ISO-8859-1"?>
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<refentry id="fn_st_within">
<refmeta>
<refentrytitle>st_within</refentrytitle>
<refmiscinfo>geo</refmiscinfo>
</refmeta>
<refnamediv>
<refname>st_within</refname>
<refpurpose>Returns true if all points
of a given geometry g1 are in another geometry g2.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_st_within">
<funcprototype id="fproto_st_within">
<funcdef><function>st_within</function></funcdef>
<paramdef>in <parameter>g1</parameter> any</paramdef>
<paramdef>in <parameter>g2</parameter> any</paramdef>
<paramdef>in <parameter>prec</parameter> double precision</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_st_within">
<title>Description</title>
<para>Returns true if all points of g1 are in g2.
If prec is supplied, this is a tolerance for the matching in units of linear distance
appropriate to the srid. Both geometries should have the same srid.
</para>
</refsect1>
<refsect1 id="params_st_within">
<title>Parameters</title>
<refsect2><title>g1</title>
<para>The first geometry.</para>
</refsect2>
<refsect2><title>g2</title>
<para>The second geometry.</para>
</refsect2>
<refsect2><title>prec</title>
<para>A tolerance for the matching in units of linear distance appropriate to the srid.
Default is 0.</para>
</refsect2>
</refsect1>
<refsect1 id="ret_st_within"><title>Return Types</title>
<para>Returns int.</para>
</refsect1>
<refsect1 id="examples_st_within">
<title>Examples</title>
<example id="ex_st_within"><title>Simple Use</title>
<programlisting><![CDATA[
SQL>SPARQL
SELECT ?c ?geo
WHERE
{
?m geo:geometry ?geo .
?m a ?c .
FILTER (bif:st_within(?geo, bif:st_point (0, 52), 100))
}
LIMIT 10;
c geo
ANY ANY
_______________________________
http://linkedgeodata.org/vocabulary#node POINT(0.0197 51.1005)
http://linkedgeodata.org/vocabulary#node POINT(0.0207 51.1006)
http://linkedgeodata.org/vocabulary#node POINT(0.0148 51.1006)
http://linkedgeodata.org/vocabulary#node POINT(0.0217 51.1006)
http://linkedgeodata.org/vocabulary#node POINT(0.0021 51.1008)
http://linkedgeodata.org/vocabulary#node POINT(0.0029 51.1008)
http://linkedgeodata.org/vocabulary#node POINT(0.0467 51.1007)
http://linkedgeodata.org/vocabulary#node POINT(0.0217 51.1007)
http://linkedgeodata.org/vocabulary#node POINT(0.0148 51.1007)
http://linkedgeodata.org/vocabulary#node POINT(0.0217 51.1008)
No. of rows in result: 10
]]></programlisting>
</example>
</refsect1>
<refsect1 id="seealso_st_within">
<title>See Also</title>
<para><link linkend="sqlrefgeospatialqgr">Querying Geometric Relations</link></para>
<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_astext"><function>st_astext</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_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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