Difference between revisions of "Truxton exif set heading"

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(Created page with "This sets the heading of the location. This is the direction the imaging device was pointed when the image was recorded. =Syntax= <source lang="C"> void truxton_exif_set_head...")
 
 
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This sets the heading of the location.
+
This sets the heading of the image.
 
This is the direction the imaging device was pointed when the image was recorded.
 
This is the direction the imaging device was pointed when the image was recorded.
 +
This corresponds to the <code>[Heading]</code> column of the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table in the database.
  
 
=Syntax=
 
=Syntax=
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   }
 
   }
  
   uint64_t exif_handle = truxton_create_exif(truxton);
+
   uint64_t exif_handle = truxton_create_exif( truxton );
  
 
   truxton_exif_set_gps_time( exif_handle, data.gps_time );
 
   truxton_exif_set_gps_time( exif_handle, data.gps_time );
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   printf( "EXIF ID is %s\n", id );
 
   printf( "EXIF ID is %s\n", id );
  
   truxton_exif_destroy(exif_handle);
+
   truxton_exif_destroy( exif_handle );
 
}
 
}
 
</source>
 
</source>

Latest revision as of 09:25, 10 February 2021

This sets the heading of the image. This is the direction the imaging device was pointed when the image was recorded. This corresponds to the [Heading] column of the [EXIF] table in the database.

Syntax

void truxton_exif_set_heading( uint64_t exif_handle, double value );

Parameters

exif_handle

This handle comes from calling truxton_exif_create() or truxton_file_create_exif().

value

It corresponds to the [Heading] column of the [EXIF] table.

Sample

void add_exif( uint64_t truxton, uint64_t file_handle, uint8_t const * destination_string, size_t max_size )
{
   char id[ 40 ];

   EXIF_PARSER parser;

   parser.Initialize( buffer, buffer_size );

   EXIF_DATA data;

   if ( fill_exif_data( parser, data ) == 0 )
   {
      return;
   }

   uint64_t exif_handle = truxton_create_exif( truxton );

   truxton_exif_set_gps_time( exif_handle, data.gps_time );
   truxton_exif_set_gps_time_offset( exif_handle, data.offsets.gps_time );
   truxton_exif_set_device_time( exif_handle, data.device_time );
   truxton_exif_set_device_time_offset( exif_handle, data.offsets.device_time );
   truxton_exif_set_latitude( exif_handle, data.latitude );
   truxton_exif_set_latitude_offset( exif_handle, data.offsets.latitude );
   truxton_exif_set_longitude( exif_handle, data.longitude );
   truxton_exif_set_longitude_offset( exif_handle, data.offsets.longitude );
   truxton_exif_set_altitude( exif_handle, data.altitude );
   truxton_exif_set_altitude_offset( exif_handle, data.offsets.altitude );
   truxton_exif_set_heading( exif_handle, data.heading);
   truxton_exif_set_heading_offset( exif_handle, data.offsets.heading );
   truxton_exif_set_focal_length( exif_handle, data.focal_length );
   truxton_exif_set_focal_length_offset( exif_handle, data.offsets.focal_length );
   truxton_exif_set_shutter_count( exif_handle, data.shutter_count );
   truxton_exif_set_shutter_count_offset( exif_handle, data.offsets.shutter_count );
   truxton_exif_set_thumbnail_offset( exif_handle, data.thumbnail_offset );
   truxton_exif_set_thumbnail_offset_offset( exif_handle, data.offsets.thumbnail_offset );
   truxton_exif_set_thumbnail_length( exif_handle, data.thumbnail_length );
   truxton_exif_set_thumbnail_length_offset( exif_handle, data.offsets.thumbnail_length );
   truxton_exif_set_make( exif_handle, data.make );
   truxton_exif_set_make_offset( exif_handle, data.offsets.make );
   truxton_exif_set_model( exif_handle, data.model );
   truxton_exif_set_model_offset( exif_handle, data.offsets.model );
   truxton_exif_set_body_serial_number( exif_handle, data.body_serial_number );
   truxton_exif_set_body_serial_number_offset( exif_handle, data.offsets.body_serial_number );
   truxton_exif_set_lens_serial_number( exif_handle, data.lens_serial_number );
   truxton_exif_set_lens_serial_number_offset( exif_handle, data.offsets.lens_serial_number );

   truxton_file_get_id( file_handle, id, sizeof( id ) );
   truxton_exif_set_file_id( exif_handle, id );

   truxton_file_get_media_id( file_handle, id, sizeof( id ) );
   truxton_exif_set_media_id( exif_handle, id );

   truxton_exif_save( exif_handle );

   truxton_exif_get_id( exif_handle, id, sizeof( id ) );

   printf( "EXIF ID is %s\n", id );

   truxton_exif_destroy( exif_handle );
}