---
name: "Bio::Location::Simple"
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::Location::Simple"
---

# Bio::Location::Simple(3pm)

Implementation of a Simple Location on a Sequence

## NAME

Bio::Location::Simple - Implementation of a Simple Location on a Sequence

## SYNOPSIS

```
    use Bio::Location::Simple;
    my $location = Bio::Location::Simple->new(
        -start  => 1,
        -end    => 100,
        -strand => 1,
    );
    if( $location->strand == -1 ) {
        printf "complement(%d..%d)\n", $location->start, $location->end;
    } else {
        printf "%d..%d\n", $location->start, $location->end;
    }
```

## DESCRIPTION

This is an implementation of Bio::LocationI to manage exact location information on a Sequence: '22' or '12..15' or '16^17'.

You can test the type of the location using **length()** function () or directly **location\_type()** which can one of two values: 'EXACT' or 'IN-BETWEEN'.

## FEEDBACK

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to one of the Bioperl mailing lists.  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 the bugs and their resolution.  Bug reports can be submitted via the web:

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

## AUTHOR - Heikki Lehvaslaiho

Email heikki-at-bioperl-dot-org

## APPENDIX

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

### start

```
  Title   : start
  Usage   : $start = $loc->start();
  Function: get/set the start of this range
  Returns : the start of this range
  Args    : optionally allows the start to be set
            using $loc->start($start)
```

### end

```
  Title   : end
  Usage   : $end = $loc->end();
  Function: get/set the end of this range
  Returns : the end of this range
  Args    : optionally allows the end to be set
          : using $loc->end($start)
  Note    : If start is set but end is undefined, this now assumes that start
            is the same as end but throws a warning (i.e. it assumes this is
            a possible error). If start is undefined, this now throws an
            exception.
```

### strand

```
  Title   : strand
  Usage   : $strand = $loc->strand();
  Function: get/set the strand of this range
  Returns : the strandedness (-1, 0, +1)
  Args    : optionally allows the strand to be set
          : using $loc->strand($strand)
```

### length

```
 Title   : length
 Usage   : $len = $loc->length();
 Function: get the length in the coordinate space this location spans
 Example :
 Returns : an integer
 Args    : none
```

### min\_start

```
  Title   : min_start
  Usage   : my $minstart = $location->min_start();
  Function: Get minimum starting location of feature startpoint
  Returns : integer or undef if no minimum starting point.
  Args    : none
```

### max\_start

```
  Title   : max_start
  Usage   : my $maxstart = $location->max_start();
  Function: Get maximum starting location of feature startpoint.
            In this implementation this is exactly the same as min_start().
  Returns : integer or undef if no maximum starting point.
  Args    : none
```

### start\_pos\_type

```
  Title   : start_pos_type
  Usage   : my $start_pos_type = $location->start_pos_type();
  Function: Get start position type (ie <,>, ^).
  Returns : type of position coded as text
            ('BEFORE', 'AFTER', 'EXACT','WITHIN', 'BETWEEN')
  Args    : none
```

### min\_end

```
  Title   : min_end
  Usage   : my $minend = $location->min_end();
  Function: Get minimum ending location of feature endpoint
  Returns : integer or undef if no minimum ending point.
  Args    : none
```

### max\_end

```
  Title   : max_end
  Usage   : my $maxend = $location->max_end();
  Function: Get maximum ending location of feature endpoint
            In this implementation this is exactly the same as min_end().
  Returns : integer or undef if no maximum ending point.
  Args    : none
```

### end\_pos\_type

```
  Title   : end_pos_type
  Usage   : my $end_pos_type = $location->end_pos_type();
  Function: Get end position type (ie <,>, ^)
  Returns : type of position coded as text
            ('BEFORE', 'AFTER', 'EXACT','WITHIN', 'BETWEEN')
  Args    : none
```

### location\_type

```
  Title   : location_type
  Usage   : my $location_type = $location->location_type();
  Function: Get location type encoded as text
  Returns : string ('EXACT' or 'IN-BETWEEN')
  Args    : 'EXACT' or '..' or 'IN-BETWEEN' or '^'
```

### is\_remote

```
 Title   : is_remote
 Usage   : $is_remote_loc = $loc->is_remote()
 Function: Whether or not a location is a remote location.
           A location is said to be remote if it is on a different
           'object' than the object which 'has' this
           location. Typically, features on a sequence will sometimes
           have a remote location, which means that the location of
           the feature is on a different sequence than the one that is
           attached to the feature. In such a case, $loc->seq_id will
           be different from $feat->seq_id (usually they will be the
           same).
           While this may sound weird, it reflects the location of the
           kind of AL445212.9:83662..166657 which can be found in GenBank/EMBL
           feature tables.
 Example :
 Returns : TRUE if the location is a remote location, and FALSE otherwise
 Args    : Value to set to
```

### to\_FTstring

```
  Title   : to_FTstring
  Usage   : my $locstr = $location->to_FTstring()
  Function: returns the FeatureTable string of this location
  Returns : string
  Args    : none
```

### valid\_Location

```
 Title   : valid_Location
 Usage   : if ($location->valid_location) {...};
 Function: boolean method to determine whether location is considered valid
           (has minimum requirements for Simple implementation)
 Returns : Boolean value: true if location is valid, false otherwise
 Args    : none
```
