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<?xml version="1.0" encoding="ISO-8859-1"?>
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-->
<refentry id="fn_ST_ZMax">
<refmeta>
<refentrytitle>ST_ZMax</refentrytitle>
<refmiscinfo>geo</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ST_ZMax</refname>
<refpurpose>returns maximum z boundaries of a bounding box around a shape.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_ST_ZMax">
<funcprototype id="fproto_ST_ZMax">
<funcdef><function>ST_ZMax</function></funcdef>
<paramdef>in <parameter>shape</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_ST_ZMax">
<title>Description</title>
<para>returns boundaries of a bounding box around a shape. Bounding boxes around arcs are calculated in assumption
that no one arc is longer than a half of full circle. </para>
</refsect1>
<refsect1 id="params_ST_ZMax">
<title>Parameters</title>
<refsect2><title>shape</title><para>A bounding box.</para></refsect2>
</refsect1>
<refsect1 id="ret_ST_ZMax"><title>Return Types</title>
<para>Returns double precision.</para>
</refsect1>
<refsect1 id="examples_ST_ZMax">
<title>Examples</title>
<example id="ex_ST_ZMax"><title>Simple Use</title>
<screen><![CDATA[
DB.DBA.TTLP ('
<point2d> <shape> "POINT(1 3)"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<point4d> <shape> "POINTZM(0 1 2 3)"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<box1> <shape> "BOX(0 0, 2 3)"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<linestring> <shape> "LINESTRING(10 21, 12 23, 10 25)"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<polygon1> <shape> "POLYGON((1 3,2 4,1 5,0 4,1 3))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<polygon2> <shape> "POLYGON((1.5 3.5,2.5 4.5,1.5 5.5,0.5 4.5,1.5 3.5))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<polygon3> <shape> "POLYGON((1 3,2 4,1 5,0 4,1 3),(1 3.5,1.5 4,1 4.5,0.5 4,1 3.5))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<multipolygon> <shape> "MULTIPOLYGON(((1 3,2 4,1 5,0 4,1 3)),((1 2,2 1,1 0,0 1,1 2)))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
<collection> <shape> "GEOMETRYCOLLECTION(POINT(0 0),MULTILINESTRING((1 5,0 1,4 0,5 4),(1 5,1 0,4 0,4 5)),MULTIPOLYGON(((1 3,2 4,1 5,0 4,1 3)),((1 2,2 1,1 0,0 1,1 2))))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> .
', 'http://geo-api-demo/', 'http://geo-api-demo/', 0)
--
SQL>
SPARQL
SELECT ?s,
bif:st_zmax(?o) as ?zmax
FROM <http://geo-api-demo/>
WHERE { ?s ?p ?o };
s zmax
ANY DOUBLE PRECISION
_______________________________________________________________________________
http://geo-api-demo/box1 1e+38
http://geo-api-demo/collection 1e+38
http://geo-api-demo/linestring 1e+38
http://geo-api-demo/multipolygon 1e+38
http://geo-api-demo/point2d 1e+38
http://geo-api-demo/point4d 2
http://geo-api-demo/polygon1 1e+38
http://geo-api-demo/polygon2 1e+38
]]>
</screen>
</example>
</refsect1>
<refsect1 id="seealso_ST_ZMax">
<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_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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