1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
<?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_NumGeometries">
<refmeta>
<refentrytitle>ST_NumGeometries</refentrytitle>
<refmiscinfo>geo</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ST_NumGeometries</refname>
<refpurpose>returns number of members of a MULTI... or ...COLLECTION shape, 1 for other sorts of shapes. </refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_ST_NumGeometries">
<funcprototype id="fproto_ST_NumGeometries">
<funcdef><function>ST_NumGeometries</function></funcdef>
<paramdef>in <parameter>shape</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_ST_NumGeometries">
<title>Description</title>
<para>returns number of members of a MULTI... or ...COLLECTION shape, 1 for other sorts of shapes. </para>
</refsect1>
<refsect1 id="params_ST_NumGeometries">
<title>Parameters</title>
<refsect2><title>shape</title><para>MULTI... or ...COLLECTION shape</para></refsect2>
</refsect1>
<refsect1 id="ret_ST_NumGeometries"><title>Return Types</title>
<para>Returns int.</para>
</refsect1>
<refsect1 id="examples_ST_NumGeometries">
<title>Examples</title>
<example id="ex_ST_NumGeometries"><title>Simple Use</title>
<screen><![CDATA[
SQL> 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:GeometryType(?o),
bif:ST_NumGeometries(?o)
FROM <http://geo-api-demo/>
WHERE
{
?s ?p ?o
}
ORDER BY ASC(str(?s))
s callret-1 callret-2
_______________________________________________________________________________
http://geo-api-demo/box1 BOX2D 1
http://geo-api-demo/collection GEOMETRYCOLLECTION 3
http://geo-api-demo/linestring LINESTRING 1
http://geo-api-demo/multipolygon MULTIPOLYGON 2
http://geo-api-demo/point2d POINT 1
http://geo-api-demo/point4d POINTZM 1
http://geo-api-demo/polygon1 POLYGON 1
http://geo-api-demo/polygon2 POLYGON 1
http://geo-api-demo/polygon3 POLYGON 1
]]>
</screen>
</example>
</refsect1>
<refsect1 id="seealso_ST_NumGeometries">
<title>See Also</title>
<para><link linkend="fn_ST_GeometryN"><function>ST_GeometryN()</function></link></para>
<para><link linkend="fn_GeometryType"><function>GeometryType()</function></link></para>
</refsect1>
</refentry>
|
