Hi,
our HTML delimiter fields support Joomla Content Plugin (see docs at
http://docs.easy-profile.com/index.php/article/html-delimiter-field-type), so to do this you can use a workaround.
Example:
You can use NoNumber Sourcerer (
https://www.nonumber.nl/extensions/sourcerer) to add PHP code to get values from DB query, so you can put in HTML delimiter fields something like:
{source}
<?php
$user_id=JRequest::getVar('id', JFactory::getUser( )->id );
$db=JFactory::getDbo( );
$query='SELECT latitude FROM your_table WHERE user_id='.$user_id;
$db->setQuery( $query );
$latitude=$db->loadResult( );
echo $latitude;
?>
{/source}
NOTE: This code is not tested and not supported, this is only for example purpose.