man Geo::Space (3): A collection of various items

INHERITANCE

 Geo::Space
   is a Geo::Shape

SYNOPSIS

my $island1 = Geo::Line->filled(...);
my $island2 = Geo::Space->new(...);
my $islands = Geo::Space->new($island1, $island2)

DESCRIPTION

Where a Geo::Surface can only contains sets of nested polygons, the Space can contain anything you like: lines, points, and unrelated polygons.

Extends ``DESCRIPTION'' in Geo::Shape.

METHODS

Extends ``METHODS'' in Geo::Shape.

Constructors

Extends ``Constructors'' in Geo::Shape.

$obj->new([$components], %options)

Geo::Space->new([$components], %options)

When called as instance method, some defaults are copied from the object where the call is made upon. Usually called as class method.

$components are Math::Polygon, Math::Polygon::Surface, Geo::Point, Geo::Line, Geo::Surface, Geo::Space objects.

 -Option--Defined in--Default
  proj    Geo::Shape  see Geo::Proj::defaultProjection()

proj => LABEL

Attributes

Extends ``Attributes'' in Geo::Shape.

$obj->component($index, [$index, ...]): Returns the component (or components) with the specified $index(es). One Geo::Shape object in scalar context, and multiple in list context.
$obj->components(): Returns a list of Geo::Shape objects, all located in this space.
$obj->lines(): Returns a list of Geo::Line objects, which are defined as separate components.
$obj->nrComponents(): Returns the number of components.
$obj->onlyLines(): Returns true when all components are lines; Geo::Line objects.
$obj->onlyPoints(): Returns true when all components are points; Geo::Point objects.
$obj->onlyRings(): Returns true when all components are closed lines; Geo::Line objects each defined as ring.
$obj->points(): Returns a list of Geo::Point objects, which are defined as separate components.
$obj->proj(): Inherited, see ``Attributes'' in Geo::Shape
$obj->proj4(): Inherited, see ``Attributes'' in Geo::Shape

Projections

Extends ``Projections'' in Geo::Shape.

$obj->in(<$label|'utm'>): Inherited, see ``Projections'' in Geo::Shape
$obj->projectOn($nick, @points): Inherited, see ``Projections'' in Geo::Shape

Geometry

Extends ``Geometry'' in Geo::Shape.

$obj->area(): Returns the area enclosed by the combined components. Only useful when the points are in some orthogonal projection.
$obj->bbox(): Inherited, see ``Geometry'' in Geo::Shape
$obj->bboxCenter(): Inherited, see ``Geometry'' in Geo::Shape
$obj->bboxRing([$xmin, $ymin, $xmax, $ymax, [$proj]])
Geo::Space->bboxRing([$xmin, $ymin, $xmax, $ymax, [$proj]]): Inherited, see ``Geometry'' in Geo::Shape
$obj->distance($object, [$unit]): Inherited, see ``Geometry'' in Geo::Shape
$obj->perimeter(): The length of the outer polygons of all components. Only useful in a orthogonal coordinate systems.

Display

Extends ``Display'' in Geo::Shape.

$obj->deg2dm($degrees, $pos, $neg)
Geo::Space->deg2dm($degrees, $pos, $neg): Inherited, see ``Display'' in Geo::Shape
$obj->deg2dms($degrees, $pos, $neg)
Geo::Space->deg2dms($degrees, $pos, $neg): Inherited, see ``Display'' in Geo::Shape
$obj->dms2deg($dms)
Geo::Space->dms2deg($dms): Inherited, see ``Display'' in Geo::Shape
$obj->toString([$projection]): Returns a string representation of the line, which is also used for stringification.
example:

OVERLOAD

Extends ``OVERLOAD'' in Geo::Shape.

overload: '""' (stringification): Inherited, see ``OVERLOAD'' in Geo::Shape
overload: 'bool' (truth value): Inherited, see ``OVERLOAD'' in Geo::Shape

DIAGNOSTICS

Error: distance calculation not implemented between a $kind and a $kind: Only a subset of all objects can be used in the distance calculation. The limitation is purely caused by lack of time to implement this.
Error: in() not implemented for a $class

LICENSE

Copyrights 2005-2014 by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html