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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_linestring">
<refmeta>
<refentrytitle>st_linestring</refentrytitle>
<refmiscinfo>geo</refmiscinfo>
</refmeta>
<refnamediv>
<refname>st_linestring</refname>
<refpurpose>returns a linestring in default SRID</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_st_linestring">
<funcprototype id="fproto_st_linestring">
<funcdef><function>st_linestring</function></funcdef>
<paramdef>in <parameter>item1</parameter> any</paramdef>
<paramdef>in <parameter>item2</parameter> any</paramdef>
<paramdef>in <parameter>itemN</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_st_linestring">
<title>Description</title>
<para>returns a linestring in default SRID, the coordinates of vertices are specified by arguments that are
points, 2-, 3- or 4-item vectors of coordinates, linestrings, arcstrings or vectors of the above mentioned
values. Repeating vertices are automatically removed, except the case of repeating vertices in the middle
of a linestring/arcstring argument.</para>
</refsect1>
<refsect1 id="params_st_linestring">
<title>Parameters</title>
<refsect2><title>item1</title><para>Geometry.</para></refsect2>
<refsect2><title>item2</title><para>Geometry.</para></refsect2>
<refsect2><title>itemN</title><para>Geometry.</para></refsect2>
</refsect1>
<refsect1 id="ret_st_linestring"><title>Return Types</title>
<para>Returns varchar.</para>
</refsect1>
<refsect1 id="examples_st_linestring">
<title>Examples</title>
<example id="ex_st_linestring"><title>Simple Use</title>
<screen><![CDATA[
SQL> select st_linestring (st_point (11,22),
st_point (13, 24),
st_point (13,24),
st_point (15,26),
st_point (17,28))
unnamed
VARCHAR NOT NULL
_______________________________________________________________________________
LINESTRING(11.0 22.0,13.0 24.0,15.0 26.0,17.0 28.0)
SQL> select st_linestring (st_linestring (vector(vector (11,22),
vector (13, 24))),
st_linestring (vector (13,24), vector(vector (15,26),
vector (17,28))))
st_linestring
VARCHAR
_______________________________________________________________________________
LINESTRING(11.0 22.0,13.0 24.0,15.0 26.0,17.0 28.0)
]]>
</screen>
</example>
</refsect1>
<refsect1 id="seealso_st_linestring">
<title>See Also</title>
<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_Z"><function>ST_Z()</function></link></para>
<para><link linkend="fn_ST_M"><function>ST_M()</function></link></para>
<para><link linkend="fn_ST_XMin"><function>ST_XMin()</function></link></para>
<para><link linkend="fn_ST_XMax"><function>ST_XMax()</function></link></para>
<para><link linkend="fn_ST_YMin"><function>ST_YMin()</function></link></para>
<para><link linkend="fn_ST_YMax"><function>ST_YMax()</function></link></para>
<para><link linkend="fn_ST_ZMin"><function>ST_ZMin()</function></link></para>
<para><link linkend="fn_ST_ZMax"><function>ST_ZMax()</function></link></para>
<para><link linkend="fn_ST_MMin"><function>ST_MMin()</function></link></para>
<para><link linkend="fn_ST_MMax"><function>ST_MMax()</function></link></para>
</refsect1>
</refentry>
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