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GPX.md
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GPX.md
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The OsmAnd's GPX file format conforms to the GPX 1.1 specification with additional data written as extensions. There are several sections of such data:
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## Track appearance
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The following parameters are used to customize the appearance of a track on the map. They are used inside the "gpx" tag and apply to all tracks contained in the gpx.
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#### Parameters
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* **show_arrows** [*true, false*] - show / hide arrows along the path line.
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* **width** [*thin, medium, bold, 1-24*] - width of the track line on the map. The thin, medium, and bold are style depended values (should be defined as currentTrackWidth attribute).
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* **color** [*#AARRGGBB, #RRGGBB*] - color of a track line on the map. Hex value.
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* **split_type** [*no_split, distance, time*] - split type for a track.
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* **split_interval** [*double*] - split interval for a track. Distance (meters), time (seconds).
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#### Example:
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```xml
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<gpx version="1.1" creator="OsmAndRouterV2" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
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...
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<extensions>
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<show_arrows>true</show_arrows>
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<color>#4e4eff</color>
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<split_type>distance</split_type>
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<split_interval>2000.0</split_interval>
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<width>bold</width>
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</extensions>
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</gpx>
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```
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## Details of a track point (trkpt)
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Written to a gpx file while recording a track.
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* **speed** (meters per second)
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* **heading** (0-359 degrees)
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#### Example:
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```xml
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<trkpt lat="52.397799" lon="4.575998">
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<ele>203</ele>
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<time>2019-05-08T10:36:43Z</time>
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<hdop>3</hdop>
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<extensions>
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<heading>273</heading>
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<speed>5.02</speed>
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</extensions>
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</trkpt>
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```
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## Calculated route(s)
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This data contains all details of a route built with **OsmAnd** (route segments, turns, road names, road types, restrictions, etc.). The route can be completely restored as if just built, even in the absence of the respective offline maps.
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A gpx file may contain several routes. Each of them is contained in a specific segment under **trkseg** / **extensions**. A gpx file is saved in this form when exporting a constructed route or when saving a track that consists of several separate segments via the **Plan a route** functionality.
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**Plan a route** also adds one (or several, in accordance with the number of contained separate segments / tracks) **rte** blocks to the gpx file, containing route key points (**rtept**).
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#### Gpx structure:
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```xml
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<trk>
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<trkseg>
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<!-- List of segment points. The order of the points corresponds to the order and length of the route segments (<route><segment length="x" ... />). -->
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<!-- The value of the "length" attribute corresponds to the number of points in this segment of the route. -->
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<trkpt ... ></trkpt>
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<extensions>
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<!-- List of route segments -->
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<route>
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<segment ... />
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</route>
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<!-- Properties of segments included in the route. -->
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<!-- This data is taken from offline maps during the initial construction of a route. -->
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<types>
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<type ... />
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</types>
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</extensions>
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</trkseg>
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</trk>
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<!-- List of intermediate route points. If there are multiple routes, the order of the rte list matches the order of the route segments. -->
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<rte>
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<rtept ... />
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<!-- For routes built with the "Plan route", the parameters of key points are saved. -->
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<extensions>
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<!-- Route profile type for next segment (car, bicycle, pedestrian, etc.). -->
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<profile>...</profile>
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<!-- The index of the point in the gpx segment that corresponds to the first point of the calculated route for this segment. -->
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<trkpt_idx>...</trkpt_idx>
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</extensions>
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</rtept>
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</rte>
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```
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#### Example:
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```xml
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<gpx version="1.1" creator="OsmAndRouterV2" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
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<metadata>
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<name>Fri 06 Nov 2020</name>
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</metadata>
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<trk>
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<name>Fri 06 Nov 2020</name>
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<trkseg>
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<trkpt lat="52.3639849" lon="4.8900533">
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<ele>0.801</ele>
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</trkpt>
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<trkpt lat="52.3636917" lon="4.8922849">
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<ele>0.998</ele>
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</trkpt>
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<trkpt lat="52.3636885" lon="4.892309">
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<ele>1</ele>
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</trkpt>
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<trkpt lat="52.3636426" lon="4.8922902">
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<ele>0.963</ele>
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</trkpt>
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<trkpt lat="52.363564" lon="4.8922607">
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<ele>0.899</ele>
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</trkpt>
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....
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<extensions>
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<route>
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<segment id="7372058" length="3" segmentTime="178.44" speed="1.11" turnType="C" types="0,1,2,3,4,5,6" names="57" />
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<segment id="334164679" length="5" segmentTime="86.11" speed="1.11" turnType="TR" turnAngle="91.88" types="7,8,0,9,10,11,12,13,6" pointTypes=";;14,15;16,17,18;" names="58" />
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<segment id="334603581" length="6" segmentTime="75.5" speed="1.11" types="19,20,21,7,8,0,22,9,10,11,12,13,23,6" pointTypes=";14;16,24;16,24;14;" names="58" />
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<segment id="446707354" length="3" segmentTime="8.32" speed="1.11" turnType="TSLL" turnAngle="-25.44" types="19,25,21,7,8,22,9,1,11,12,13,6" names="58" />
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...
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</route>
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<types>
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<type t="lit" v="yes" />
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<type t="oneway" v="yes" />
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<type t="highway" v="unclassified" />
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<type t="surface" v="paving_stones" />
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<type t="maxspeed" v="30" />
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...
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</types>
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</extensions>
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</trkseg>
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</trk>
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<rte>
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<rtept lat="52.3639945" lon="4.8900532">
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<extensions>
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<profile>pedestrian</profile>
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<trkpt_idx>0</trkpt_idx>
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</extensions>
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</rtept>
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<rtept lat="52.3612797" lon="4.8911677">
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<extensions>
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<profile>pedestrian</profile>
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<trkpt_idx>24</trkpt_idx>
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</extensions>
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</rtept>
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<rtept lat="52.356996" lon="4.8912071">
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<extensions>
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<profile>pedestrian</profile>
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<trkpt_idx>89</trkpt_idx>
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</extensions>
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</rtept>
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<rtept lat="52.3542374" lon="4.8947024">
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<extensions>
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<profile>pedestrian</profile>
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<trkpt_idx>121</trkpt_idx>
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</extensions>
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</rtept>
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</rte>
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</gpx>
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```
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