WP: Action: Filter TAX Archive

gistfile1.aw

<?php

function filter_term_archive( $query ) {
    if ( $query->is_tax('your_taxonomy') ) {
		$query->set( 'tax_query', array(
			'relation' => 'AND', // Change to OR if we only want to filter one type.
			array(
				'taxonomy' => some_custom_tax_slug(),
				'field' =>  'slug',
				'terms' => $array_of_terms
			),
			array(
				'taxonomy' => some_custom_post_type_tax_slug(),
				'field' =>  'slug',
				'terms' => $current_archive_term
			)
	    ));
	}
}
add_filter( 'pre_get_posts', 'my_get_posts' );