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
|
<?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_rdf_geo_add">
<refmeta>
<refentrytitle>DB.DBA.RDF_GEO_ADD</refentrytitle>
<refmiscinfo>rdf</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DB.DBA.RDF_GEO_ADD</refname>
<refpurpose>Translates a geometry into a RDF box</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_rdf_geo_add">
<funcprototype id="fproto_rdf_geo_add">
<funcdef><function>DB.DBA.RDF_GEO_ADD</function></funcdef>
<paramdef>in <parameter>g</parameter> any</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_rdf_geo_add">
<title>Description</title>
<para>This function translates a geometry into a RDF box. It looks if an identical geometry
already exists and if so assigns the existing id to it. If the geometry is new, it gets a new ID
and is stored in the RDF literals table RDF_OBJ. At this time it is also automatically inserted
into the RDF geometry index.</para>
<para><emphasis>Note:</emphasis> In a cluster situation one should use the dpipe mechanism
for inserting into RDF quad so as to get large numbers of inserts into a single message. This
is essential for performance.</para>
</refsect1>
<refsect1 id="params_rdf_geo_add">
<title>Parameters</title>
<refsect2><title>g</title>
<para>Geometry to be translated into RDF box.</para>
</refsect2>
</refsect1>
<refsect1 id="examples_rdf_geo_add">
<title>Examples</title>
<example id="ex_rdf_geo_add"><title>Simple example</title>
<programlisting><![CDATA[
INSERT INTO RDF_QUAD (g, s, p, o)
VALUES (
"g",
"s",
iri_to_id ('http://www.w3.org/2003/01/geo/wgs84_pos#geometry'),
DB.DBA.rdf_geo_add (rdf_box (st_point (lng, lat), 256, 257, 0, 1)));
]]></programlisting>
</example>
</refsect1>
<refsect1 id="seealso_rdf_geo_add">
<title>See Also</title>
<para><link linkend="rdfsparqlgeospatcrg">Creating Geometries From RDF Data</link></para>
<para><link linkend="rdfsparqlgeospatprog">Programmatic Manipulation of Geometries in RDF</link></para>
<para><link linkend="rdfsparqlgeospatusg">Using Geometries With Existing Databases</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_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_fill"><function>DB.DBA.RDF_GEO_FILL</function></link></para>
</refsect1>
</refentry>
|
