---
name: "Bio::SearchIO::Writer::GbrowseGFF"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.8-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::SearchIO::Writer::GbrowseGFF"
---

# Bio::SearchIO::Writer::GbrowseGFF(3pm)

Interface for outputting parsed search results in Gbrowse GFF format

## NAME

Bio::SearchIO::Writer::GbrowseGFF - Interface for outputting parsed search results in Gbrowse GFF format

## SYNOPSIS

```
  use Bio::SearchIO;
  my $in = Bio::SearchIO->new(-file   => 'result.blast',
                             -format => 'blast');
  my $out = Bio::SearchIO->new(-output_format  => 'GbrowseGFF',
                              -output_cigar   => 1,
                              -output_signif  => 1,
                              -file           => ">result.gff");
  while( my $r = $in->next_result ) {
    $out->write_result($r);
  }
```

## DESCRIPTION

This writer produces Gbrowse flavour GFF from a Search::Result object.

## AUTHOR Mark Wilkinson

Email markw-at-illuminae-dot-com

## CONTRIBUTORS

Susan Miller sjmiller at email-DOT-arizon-DOT-edu Jason Stajich jason at bioperl-dot-org

## FEEDBACK

### Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list.  Your participation is much appreciated.

```
  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists
```

### Support

Please direct usage questions or support issues to the mailing list:

*bioperl-l@bioperl.org*

rather than to the module maintainer directly. Many experienced and reponsive experts will be able look at the problem and quickly address it. Please include a thorough description of the problem with code and data examples if at all possible.

### Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web:

```
  https://github.com/bioperl/bioperl-live/issues
```

## APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a \_

### new

```
 Title   : new
 Usage   : my $obj = Bio::SearchIO::Writer::GbrowseGFF->new(@args);
 Function: Builds a new Bio::SearchIO::Writer::GbrowseGFF object
 Returns : an instance of Bio::SearchIO::Writer::GbrowseGFF
 Args    :  -e_value => 10   : set e_value parsing cutoff (default undef)
            (note the -e_value flag is deprecated.)
```

### to\_string

```
 Purpose   : Produce the Gbrowse format GFF lines for a Result
 Usage     : print $writer->to_string( $result_obj, @args);
 Argument  : $result_obj = A Bio::Search::Result::ResultI object
             -version => 1|2|2.5|3  ; the GFF format you want to output (default 3)
             -match_tag => match|cDNA_match|EST_match|translated_nucleotide_match
                           nucleotide_to_protein_match|nucleotide_motif
                           This is the SO term to be placed in GFF column 3.
             -prefix => String to prefix the group by, default is EST
                        (see %Defaults class variable) A default can also
                        be set on object init
 Returns   : String containing data for each search Result or any of its
           : sub-objects (Hits and HSPs).
 Throws    : n/a
```

### start\_report

```
 Title   : start_report
 Usage   : $self->start_report()
 Function: has no function, returns nothing
 Returns : empty string
 Args    : none
```

### end\_report

```
 Title   : end_report
 Usage   : $self->end_report()
 Function: has no function, returns nothing
 Returns : empty string
 Args    : none
```

### filter

```
 Title   : filter
 Usage   : $writer->filter('hsp', \&hsp_filter);
 Function: Filter out either at HSP,Hit,or Result level
 Returns : none
 Args    : string => data type,
           CODE reference
 Note    : GbrowseGFF.pm makes no changes to the default filter code
```