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# BioPerl module for Bio::Map::Mappable
#
# Please direct questions and support issues to <bioperl-l@bioperl.org>
#
# Cared for by Sendu Bala <bix@sendu.me.uk>
#
# Copyright Sendu Bala
#
# You may distribute this module under the same terms as perl itself
# POD documentation - main docs before the code
=head1 NAME
Bio::Map::Mappable - An object representing a generic map element
that can have multiple locations in several maps.
=head1 SYNOPSIS
# a map element in two different positions on the same map
$map1 = Bio::Map::SimpleMap->new();
$position1 = Bio::Map::Position->new(-map => $map1, -value => 100);
$position2 = Bio::Map::Position->new(-map => $map1, -value => 200);
$mappable = Bio::Map::Mappable->new(-positions => [$position1, $position2] );
# add another position on a different map
$map2 = Bio::Map::SimpleMap->new();
$position3 = Bio::Map::Position->new(-map => $map2, $value => 50);
$mappable->add_position($position3);
# get all the places our map element is found, on a particular map of interest
foreach $pos ($mappable->get_positions($map1)) {
print $pos->value, "\n";
}
=head1 DESCRIPTION
This object handles the notion of a generic map element. Mappables are
entities with one or more positions on one or more maps.
This object is a pure perl implementation of L<Bio::Map::MappableI>. That
interface implements some of its own methods so check the docs there for
those.
=head1 FEEDBACK
=head2 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
=head2 Support
Please direct usage questions or support issues to the mailing list:
I<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.
=head2 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
=head1 AUTHOR - Sendu Bala
Email bix@sendu.me.uk
=head1 APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
=cut
# Let the code begin...
package Bio::Map::Mappable;
use strict;
use Bio::Map::Relative;
use Bio::Map::Position;
use base qw(Bio::Root::Root Bio::Map::MappableI);
=head2 new
Title : new
Usage : my $mappable = Bio::Map::Mappable->new();
Function: Builds a new Bio::Map::Mappable object
Returns : Bio::Map::Mappable
Args : -name => string : name of the mappable element
-id => string : id of the mappable element
=cut
sub new {
my ($class, @args) = @_;
my $self = $class->SUPER::new(@args);
my ($name, $id) = $self->_rearrange([qw(NAME ID)], @args);
$self->name($name) if $name;
$self->id($id) if $id;
return $self;
}
=head2 name
Title : name
Usage : $mappable->name($new_name);
my $name = $mappable->name();
Function: Get/Set the name for this Mappable
Returns : A scalar representing the current name of this Mappable
Args : none to get
string to set
=cut
sub name {
my $self = shift;
if (@_) { $self->{_name} = shift }
return $self->{_name} || '';
}
=head2 id
Title : id
Usage : my $id = $mappable->id();
$mappable->id($new_id);
Function: Get/Set the id for this Mappable.
Returns : A scalar representing the current id of this Mappable
Args : none to get
string to set
=cut
sub id {
my $self = shift;
if (@_) { $self->{_id} = shift }
return $self->{_id} || return;
}
=head2 in_map
Title : in_map
Usage : if ($mappable->in_map($map)) {...}
Function: Tests if this mappable is found on a specific map
Returns : boolean
Args : L<Bio::Map::MapI>
=cut
sub in_map {
my ($self, $query_map) = @_;
$self->throw("Must supply an argument") unless $query_map;
$self->throw("This is [$query_map], not an object") unless ref($query_map);
$self->throw("This is [$query_map], not a Bio::Map::MapI object") unless $query_map->isa('Bio::Map::MapI');
foreach my $map ($self->known_maps) {
($map eq $query_map) && return 1;
}
return 0;
}
=head2 Comparison methods
=cut
=head2 equals
Title : equals
Usage : if ($mappable->equals($other_mappable)) {...}
my @equal_positions = $mappable->equals($other_mappable);
Function: Finds the positions in this mappable that are equal to any
comparison positions.
Returns : array of L<Bio::Map::PositionI> objects
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
=cut
sub equals {
my $self = shift;
return $self->_compare('equals', @_);
}
=head2 less_than
Title : less_than
Usage : if ($mappable->less_than($other_mappable)) {...}
my @lesser_positions = $mappable->less_than($other_mappable);
Function: Finds the positions in this mappable that are less than all
comparison positions.
Returns : array of L<Bio::Map::PositionI> objects
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
=cut
sub less_than {
my $self = shift;
return $self->_compare('less_than', @_);
}
=head2 greater_than
Title : greater_than
Usage : if ($mappable->greater_than($other_mappable)) {...}
my @greater_positions = $mappable->greater_than($other_mappable);
Function: Finds the positions in this mappable that are greater than all
comparison positions.
Returns : array of L<Bio::Map::PositionI> objects
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
=cut
sub greater_than {
my $self = shift;
return $self->_compare('greater_than', @_);
}
=head2 overlaps
Title : overlaps
Usage : if ($mappable->overlaps($other_mappable)) {...}
my @overlapping_positions = $mappable->overlaps($other_mappable);
Function: Finds the positions in this mappable that overlap with any
comparison positions.
Returns : array of L<Bio::Map::PositionI> objects
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
=cut
sub overlaps {
my $self = shift;
return $self->_compare('overlaps', @_);
}
=head2 contains
Title : contains
Usage : if ($mappable->contains($other_mappable)) {...}
my @container_positions = $mappable->contains($other_mappable);
Function: Finds the positions in this mappable that contain any comparison
positions.
Returns : array of L<Bio::Map::PositionI> objects
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
=cut
sub contains {
my $self = shift;
return $self->_compare('contains', @_);
}
=head2 overlapping_groups
Title : overlapping_groups
Usage : my @groups = $mappable->overlapping_groups($other_mappable);
my @groups = Bio::Map::Mappable->overlapping_groups(\@mappables);
Function: Look at all the positions of all the supplied mappables and group
them according to overlap.
Returns : array of array refs, each ref containing the Bio::Map::PositionI
objects that overlap with each other
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to, or an array ref of such objects (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
-min_pos_num => int : the minimum number of positions that must
be in a group before it will be returned
[default is 1]
-min_mappables_num => int : the minimum number of different
mappables represented by the
positions in a group before it
will be returned [default is 1]
-min_mappables_percent => number : as above, but the minimum
percentage of input mappables
[default is 0]
-min_map_num => int : the minimum number of different
maps represented by the positions
in a group before it will be
returned [default is 1]
-min_map_percent => number : as above, but the minimum
percentage of maps known by the
input mappables [default is 0]
-require_self => 1|0 : require that at least one of the
calling object's positions be in
each group [default is 1, has no
effect when the second usage form
is used]
-required => \@mappables : require that at least one position
for each mappable supplied in this
array ref be in each group
=cut
sub overlapping_groups {
my $self = shift;
return $self->_compare('overlapping_groups', @_);
}
=head2 disconnected_intersections
Title : disconnected_intersections
Usage : @positions = $mappable->disconnected_intersections($other_mappable);
@positions = Bio::Map::Mappable->disconnected_intersections(\@mappables);
Function: Make the positions that are at the intersection of each group of
overlapping positions, considering all the positions of the supplied
mappables.
Returns : new Bio::Map::Mappable who's positions on maps are the calculated
disconnected unions
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to, or an array ref of such objects (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
-min_pos_num => int : the minimum number of positions that must
be in a group before the intersection will
be calculated and returned [default is 1]
-min_mappables_num => int : the minimum number of different
mappables represented by the
positions in a group before the
intersection will be calculated
and returned [default is 1]
-min_mappables_percent => number : as above, but the minimum
percentage of input mappables
[default is 0]
-min_map_num => int : the minimum number of different
maps represented by the positions
in a group before the intersection
will be calculated and returned
[default is 1]
-min_map_percent => number : as above, but the minimum
percentage of maps known by the
input mappables [default is 0]
-require_self => 1|0 : require that at least one of the
calling object's positions be in
each group [default is 1, has no
effect when the second usage form
is used]
-required => \@mappables : require that at least one position
for each mappable supplied in this
array ref be in each group
=cut
sub disconnected_intersections {
my $self = shift;
return $self->_compare('intersection', @_);
}
=head2 disconnected_unions
Title : disconnected_unions
Usage : my @positions = $mappable->disconnected_unions($other_mappable);
my @positions = Bio::Map::Mappable->disconnected_unions(\@mappables);
Function: Make the positions that are the union of each group of overlapping
positions, considering all the positions of the supplied mappables.
Returns : new Bio::Map::Mappable who's positions on maps are the calculated
disconnected unions
Args : arg #1 = L<Bio::Map::MappableI> OR L<Bio::Map::PositionI> to compare
this one to, or an array ref of such objects (mandatory)
arg #2 = optionally, one or more of the key => value pairs below
-map => MapI : a Bio::Map::MapI to only consider positions
on the given map
-relative => RelativeI : a Bio::Map::RelativeI to calculate in terms
of each Position's relative position to the
thing described by that Relative
-min_pos_num => int : the minimum number of positions that must
be in a group before the union will be
calculated and returned [default is 1]
-min_mappables_num => int : the minimum number of different
mappables represented by the
positions in a group before the
union will be calculated and
returned [default is 1]
-min_mappables_percent => number : as above, but the minimum
percentage of input mappables
[default is 0]
-min_map_num => int : the minimum number of different
maps represented by the positions
in a group before the union will
be calculated and returned
[default is 1]
-min_map_percent => number : as above, but the minimum
percentage of maps known by the
input mappables [default is 0]
-require_self => 1|0 : require that at least one of the
calling object's positions be in
each group [default is 1, has no
effect when the second usage form
is used]
-required => \@mappables : require that at least one position
for each mappable supplied in this
array ref be in each group
=cut
sub disconnected_unions {
my $self = shift;
return $self->_compare('union', @_);
}
# do a RangeI-related comparison by calling the corresponding PositionI method
# on all the requested Positions of our Mappables
sub _compare {
my ($self, $method, $input, @extra_args) = @_;
$self->throw("Must supply an object or array ref of them") unless ref($input);
$self->throw("Wrong number of extra args (should be key => value pairs)") unless @extra_args % 2 == 0;
my @compares = ref($input) eq 'ARRAY' ? @{$input} : ($input);
my %args = (-map => undef, -relative => undef, -min_pos_num => 1,
-min_mappables_num => 1, -min_mappables_percent => 0,
-min_map_num => 1, -min_map_percent => 0,
-require_self => 0, -required => undef, -min_overlap_percent => 0, @extra_args);
my $map = $args{-map};
my $rel = $args{-relative};
my $overlap = $args{-min_overlap_percent};
my $min_pos_num = $args{-min_pos_num};
my $min_pables_num = $args{-min_mappables_num};
if ($args{-min_mappables_percent}) {
my $mn = (@compares + (ref($self) ? 1 : 0)) / 100 * $args{-min_mappables_percent};
if ($mn > $min_pables_num) {
$min_pables_num = $mn;
}
}
my $min_map_num = $args{-min_map_num};
if ($args{-min_map_percent}) {
my %known_maps;
foreach my $pable (@compares, ref($self) ? ($self) : ()) {
foreach my $known ($pable->known_maps) {
$known_maps{$known->unique_id} = 1;
}
}
my $mn = scalar(keys %known_maps) / 100 * $args{-min_map_percent};
if ($mn > $min_map_num) {
$min_map_num = $mn;
}
}
my %required = map { $_ => 1 } $args{-required} ? @{$args{-required}} : ();
my (@mine, @yours);
if (ref($self)) {
@mine = $self->get_positions($map);
if ($args{-require_self}) {
@mine > 0 or return;
$required{$self} = 1;
}
}
my @required = sort keys %required;
foreach my $compare (@compares) {
if ($compare->isa('Bio::Map::PositionI')) {
push(@yours, $compare);
}
elsif ($compare->isa('Bio::Map::MappableI')) {
push(@yours, $compare->get_positions($map));
}
else {
$self->throw("This is [$compare], not a Bio::Map::MappableI or Bio::Map::PositionI");
}
}
@yours > 0 or return;
my @ok;
SWITCH: for ($method) {
/equals|overlaps|contains/ && do {
@mine > 0 or return;
foreach my $my_pos (@mine) {
foreach my $your_pos (@yours) {
if ($my_pos->$method($your_pos, undef, $rel)) {
push(@ok, $my_pos);
last;
}
}
}
last SWITCH;
};
/less_than|greater_than/ && do {
@mine > 0 or return;
if ($method eq 'greater_than') {
@mine = map { $_->[1] }
sort { $b->[0] <=> $a->[0] }
map { [$_->end($_->absolute_relative), $_] }
@mine;
@yours = map { $_->[1] }
sort { $b->[0] <=> $a->[0] }
map { [$_->end($_->absolute_relative), $_] }
@yours;
}
my $test_pos = shift(@yours);
foreach my $my_pos (@mine) {
if ($my_pos->$method($test_pos, $rel)) {
push(@ok, $my_pos);
}
else {
last;
}
}
if ($method eq 'greater_than') {
@ok = map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [$_->sortable, $_] }
@ok;
}
last SWITCH;
};
/overlapping_groups|intersection|union/ && do {
my @positions = (@mine, @yours);
my $start_pos = shift(@positions);
my $dr_able = $start_pos->disconnected_ranges(\@positions, $rel, $overlap) || return;
my @disconnected_ranges = $dr_able->get_positions;
#print "got ", scalar(@disconnected_ranges), " disconnected_ranges, first has range ", $disconnected_ranges[0]->toString, "\n";
#use Benchmark qw(:all);
#my $t0 = new Benchmark;
my %all_groups;
my %done_ranges;
for my $i (0..$#disconnected_ranges) {
my $range = $disconnected_ranges[$i];
my $range_string = $range->toString;
next if $done_ranges{$range_string};
$done_ranges{$range_string} = 1;
foreach my $pos ($start_pos, @positions) {
if ($pos->overlaps($range, undef, $rel)) {
$all_groups{$range_string}->{$pos} = $pos;
}
}
}
#my $t1 = new Benchmark;
#my $td = timediff($t1, $t0);
#print "grouping took: ",timestr($td),"\n";
# purge the temporary working (not $dr_able->purge_positions since
# that removes the element from each position, but leaves it on
# the map. *** need complete purge that removes position from
# memory...
foreach my $pos (@disconnected_ranges) {
my $map = $pos->map || next;
$map->purge_positions($pos);
}
my @groups;
GROUPS: foreach my $group_range (sort keys %all_groups) {
my $group = $all_groups{$group_range};
my @group = sort values %{$group};
#print "* in group $group_range, there are ", scalar(@group), " members\n";
@group >= $min_pos_num or next;
@group >= $min_pables_num or next; # shortcut before having to work it out properly
@group >= $min_map_num or next; # shortcut before having to work it out properly
my %mappables;
foreach my $pos (@group) {
my $mappable = $pos->element || next;
$mappables{$mappable} = 1;
}
keys %mappables >= $min_pables_num || next;
my %maps;
foreach my $pos (@group) {
my $map = $pos->map || next;
$maps{$map->unique_id} = 1;
}
keys %maps >= $min_map_num || next;
foreach my $required (@required) {
exists $mappables{$required} or next GROUPS;
}
my @sorted = map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [$_->sortable, $_] }
@group;
push(@groups, \@sorted);
}
if ($method eq 'overlapping_groups') {
return @groups;
}
else {
foreach my $group (@groups) {
my $start_pos = shift(@{$group});
unless (@{$group}) {
# we'll consider the 'intersection' or 'union' of just
# one position as the position itself
push(@ok, Bio::Map::Position->new(-map => $start_pos->map,
-start => $start_pos->start,
-end => $start_pos->end));
}
else {
my @rel_arg = $method eq 'intersection' ? (undef, $rel) : ($rel);
my $result = $start_pos->$method($group, @rel_arg) || next;
push(@ok, $result->get_positions);
}
}
# assign all the positions to a result mappable
my $result = $self->new();
$result->add_position(@ok) if @ok; # add_position can actually take a list
return $result;
}
last SWITCH;
};
$self->throw("Unknown method '$method'");
}
return @ok;
}
=head2 tuple
Title : tuple
Usage : Do Not Use!
Function: tuple was supposed to be a private method; this method no longer
does anything
Returns : warning
Args : none
Status : deprecated, will be removed in next version
=cut
sub tuple {
my $self = shift;
$self->warn("The tuple method was supposed to be a private method, don't call it!");
}
=head2 annotation
Title : annotation
Usage : $mappable->annotation($an_col);
my $an_col = $mappable->annotation();
Function: Get the annotation collection (see Bio::AnnotationCollectionI)
for this annotatable object.
Returns : a Bio::AnnotationCollectionI implementing object, or undef
Args : none to get, OR
a Bio::AnnotationCollectionI implementing object to set
=cut
sub annotation {
my $self = shift;
if (@_) { $self->{_annotation} = shift }
return $self->{_annotation} || return;
}
1;
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