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37 <p>As seen in the figure below, latitude lines are smaller near the poles. |
37 <p>As seen in the figure below, latitude lines are smaller near the poles. |
38 At the equator, one degree of longitude is roughly 111.3 km, whereas at 60 |
38 At the equator, one degree of longitude is roughly 111.3 km, whereas at 60 |
39 degrees of latitude one degree of longitude is only 55.8 km, which is more |
39 degrees of latitude one degree of longitude is only 55.8 km, which is more |
40 difficult to see.</p> |
40 difficult to see.</p> |
41 <fig id="GUID-D98458F6-8EBD-43B9-9C3C-5204BD837D2D"> |
41 <fig id="GUID-D98458F6-8EBD-43B9-9C3C-5204BD837D2D"> |
42 <image href="GUID-0C01305E-9E73-4E44-BD13-361C93CC5E79_d0e413519_href.png" placement="inline"/> |
42 <image href="GUID-0C01305E-9E73-4E44-BD13-361C93CC5E79_d0e435276_href.png" placement="inline"/> |
43 </fig> |
43 </fig> |
44 <section id="GUID-D4201DF5-26DD-5E46-B228-A3CAA467C7C6"><title>Getting started |
44 <section id="GUID-D4201DF5-26DD-5E46-B228-A3CAA467C7C6"><title>Getting started |
45 with LBS</title> <p>This section provides links to the most important documentation.</p> <p><b>For |
45 with LBS</title> <p>This section provides links to the most important documentation.</p> <p><b>For |
46 application developers</b> </p> <p>The <xref href="GUID-D0318BB6-0B9F-5A1C-AB0B-61BA22D28661.dita">Location |
46 application developers</b> </p> <p>The <xref href="GUID-D0318BB6-0B9F-5A1C-AB0B-61BA22D28661.dita">Location |
47 Acquisition API</xref> is the interface that programmers use to create location-aware |
47 Acquisition API</xref> is the interface that programmers use to create location-aware |
85 </ul> </section> |
85 </ul> </section> |
86 <section id="GUID-7ECDED41-D560-4B9A-B0A8-5C9DE379971A"><title>Architecture</title> <p>See <xref href="GUID-7233BC33-6060-5D6B-A5D2-01135F059337.dita">LBS Architecture Overview</xref> for |
86 <section id="GUID-7ECDED41-D560-4B9A-B0A8-5C9DE379971A"><title>Architecture</title> <p>See <xref href="GUID-7233BC33-6060-5D6B-A5D2-01135F059337.dita">LBS Architecture Overview</xref> for |
87 more information about the LBS architecture. </p> <p>Figure 1 shows the LBS |
87 more information about the LBS architecture. </p> <p>Figure 1 shows the LBS |
88 system model - a component deployment view of LBS. </p> <fig id="GUID-9CA16CBE-F877-5567-9B95-4343049EC809"> |
88 system model - a component deployment view of LBS. </p> <fig id="GUID-9CA16CBE-F877-5567-9B95-4343049EC809"> |
89 <title> Figure 1. LBS System Model </title> |
89 <title> Figure 1. LBS System Model </title> |
90 <image href="GUID-C5E7D88B-C73D-56D8-A8F4-2393E5EEDC8E_d0e413643_href.png" placement="inline"/> |
90 <image href="GUID-C5E7D88B-C73D-56D8-A8F4-2393E5EEDC8E_d0e435400_href.png" placement="inline"/> |
91 </fig> </section> |
91 </fig> </section> |
92 <section id="GUID-CA5D2674-B469-44D8-9255-1F35CA7B8D41"><title>Technologies</title> <p>The |
92 <section id="GUID-CA5D2674-B469-44D8-9255-1F35CA7B8D41"><title>Technologies</title> <p>The |
93 main technologies enabled on the Symbian platform by the LBS subsystem are |
93 main technologies enabled on the Symbian platform by the LBS subsystem are |
94 as follows: </p> <ul> |
94 as follows: </p> <ul> |
95 <li id="GUID-62F84865-11D4-50BA-A139-7EEA7232BC8F"><p>Global Positioning System |
95 <li id="GUID-62F84865-11D4-50BA-A139-7EEA7232BC8F"><p>Global Positioning System |
103 <li id="GUID-05A9FF0E-A974-5CD7-A854-784CB23AA2A4"><p>Secure User Plane Location |
103 <li id="GUID-05A9FF0E-A974-5CD7-A854-784CB23AA2A4"><p>Secure User Plane Location |
104 (SUPL) v1.0 </p> <p>SUPL defines an architecture for supporting Location Based |
104 (SUPL) v1.0 </p> <p>SUPL defines an architecture for supporting Location Based |
105 Services using IP bearers to connect handsets and network hosts. The Symbian |
105 Services using IP bearers to connect handsets and network hosts. The Symbian |
106 LBS subsystem contains a SUPL Protocol Module to support SUPL. </p> </li> |
106 LBS subsystem contains a SUPL Protocol Module to support SUPL. </p> </li> |
107 </ul><fig id="GUID-52D81395-87C4-4706-97E5-84336EA53C69"> |
107 </ul><fig id="GUID-52D81395-87C4-4706-97E5-84336EA53C69"> |
108 <image href="GUID-0CCCF088-E636-4C12-AA5E-3E2CB04424AD_d0e413682_href.png" placement="inline"/> |
108 <image href="GUID-0CCCF088-E636-4C12-AA5E-3E2CB04424AD_d0e435439_href.png" placement="inline"/> |
109 </fig><p>The above figure illustrates how the location information can be |
109 </fig><p>The above figure illustrates how the location information can be |
110 provided to the device. Access to these location methods is provided through |
110 provided to the device. Access to these location methods is provided through |
111 the positioning modules.</p> </section> |
111 the positioning modules.</p> </section> |
112 </conbody></concept> |
112 </conbody></concept> |