Difference between revisions of "Truxton location get longitude"
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(Created page with "This retrieves longitude portion of the location. This corresponds to the <code>[Longitude]</code> column of the <code><nowiki>[</nowiki>Location<nowiki>]</...") |
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| − | This retrieves longitude portion of the location. | + | This retrieves [https://en.wikipedia.org/wiki/Longitude longitude] portion of the location. |
This corresponds to the <code>[Longitude]</code> column of the <code><nowiki>[</nowiki>[[Location Table|Location]]<nowiki>]</nowiki></code> table. | This corresponds to the <code>[Longitude]</code> column of the <code><nowiki>[</nowiki>[[Location Table|Location]]<nowiki>]</nowiki></code> table. | ||
| Line 12: | Line 12: | ||
=Return value= | =Return value= | ||
| − | The longitude of the location in [https://en.wikipedia.org/wiki/Decimal_degrees decimal degrees.] | + | The [https://en.wikipedia.org/wiki/Longitude longitude] of the location in [https://en.wikipedia.org/wiki/Decimal_degrees decimal degrees] using the [https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84 WGS84] ellipsoid. |
=Sample= | =Sample= | ||
Revision as of 07:17, 14 December 2020
This retrieves longitude portion of the location.
This corresponds to the [Longitude] column of the [Location] table.
Syntax
double truxton_location_get_longitude( uint64_t location_handle );
Parameters
location_handle
This handle comes from calling truxton_location_create() or truxton_child_file_create_location()
Return value
The longitude of the location in decimal degrees using the WGS84 ellipsoid.
Sample
void dump_location(uint64_t location_handle)
{
double value = 0;
uint64_t ticks = 0;
char guid_string[ 40 ];
char label[ 256 ];
truxton_location_get_label(location_handle, label, sizeof( label ));
printf( "%s\n", label );
truxton_location_get_file_id(location_handle, guid_string, sizeof( guid_string ));
printf( "File ID: %s\n", guid_string );
truxton_location_get_media_id(location_handle, guid_string, sizeof( guid_string ));
printf( "Media ID: %s\n", guid_string );
value = truxton_location_get_latitude( location_handle );
printf( "Latitude: %lf\n", value );
value = truxton_location_get_longitude( location_handle );
printf( "Longitude: %lf\n", value );
value = truxton_location_get_altitude( location_handle );
printf( "Altitude: %lf meters\n", value );
ticks = truxton_location_get_type( location_handle );
printf( "Type: %" PRIu64 "\n", value );
ticks = truxton_location_get_when( location_handle );
printf( "Ticks: %" PRIu64 "\n", value );
}
