Truxton location set longitude - Revision history

Sam at 10:58, 10 February 2021

2021-02-10T10:58:50Z

Sam at 11:13, 14 December 2020

2020-12-14T11:13:14Z

Sam: Created page with "This sets the [https://en.wikipedia.org/wiki/Longitude longitude] in part of the location. =Syntax= void truxton_location_set_latitude( uint64_t location_ha..."

2020-12-14T07:39:56Z

Created page with "This sets the [https://en.wikipedia.org/wiki/Longitude longitude] in part of the location. =Syntax= <source lang="C"> void truxton_location_set_latitude( uint64_t location_ha..."

New page

This sets the [https://en.wikipedia.org/wiki/Longitude longitude] in part of the location.

=Syntax=
<source lang="C">
void truxton_location_set_latitude( uint64_t location_handle, double value );
</source>

=Parameters=
==<code>location_handle</code>==
This handle comes from calling <code>[[truxton_location_create]]()</code> or <code>[[truxton_child_file_create_location]]()</code>.

==<code>value</code>==
The [https://en.wikipedia.org/wiki/Longitude longitude] in decimal degrees using the [https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84 WGS84] ellipsoid.
It corresponds to the <code>[Longitude]</code> column of the <code><nowiki>[</nowiki>[[Location Table|Location]]<nowiki>]</nowiki></code> table.

=Sample=
<source lang="C" highlight="14">
void new_location(uint64_t truxton, uint64_t file, double latitude, double longitude, double altitude, uint64_t when)
{
char guid_string[ 40 ];

uint64_t location = truxton_location_create(truxton);

truxton_file_get_id( file, guid_string, sizeof( guid_string ) );
truxton_location_set_file_id( location, guid_string );

truxton_file_get_media_id( file, guid_string, sizeof( guid_string ) );
truxton_location_set_media_id( location, guid_string );

truxton_location_set_latitude( location, latitude );
truxton_location_set_longitude( location, longitude );
truxton_location_set_altitude( location, altitude );
truxton_location_set_when( location, when );
truxton_location_set_type( location, LOCATION_TYPE_EXIF );

if ( truxton_location_save() == 0 )
{
printf( "Failed to create new location\n" );
}
else
{
truxton_location_get_id( location, guid_string, sizeof( guid_string ) );
printf( "Created new location as id %s\n", guid_string );
}

truxton_location_destroy(location);
}
</source>

@@ Line 16: / Line 16: @@
 =Sample=
 <source lang="C" highlight="14">
-void new_location(uint64_t truxton, uint64_t file, double latitude, double longitude, double altitude, uint64_t when)
+void new_location( uint64_t truxton, uint64_t file, double latitude, double longitude, double altitude, uint64_t when )
+{
     char guid_string[ 40 ];
-    uint64_t location = truxton_location_create(truxton);
+    uint64_t location = truxton_location_create( truxton );
     truxton_file_get_id( file, guid_string, sizeof( guid_string ) );
@@ Line 44: / Line 44: @@
+    }
-    truxton_location_destroy(location);
+    truxton_location_destroy( location );
+}
 </source>

@@ Line 11: / Line 11: @@
 ==<code>value</code>==
-The [https://en.wikipedia.org/wiki/Longitude longitude] in decimal degrees using the [https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84 WGS84] ellipsoid.
+The [https://en.wikipedia.org/wiki/Longitude longitude] in [https://en.wikipedia.org/wiki/Decimal_degrees decimal degrees] using the [https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84 WGS84] ellipsoid.
 It corresponds to the <code>[Longitude]</code> column of the <code><nowiki>[</nowiki>[[Location Table|Location]]<nowiki>]</nowiki></code> table.