NAME¶
Geo::Space - 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()
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
SEE ALSO¶
This module is part of Geo-Point distribution version 0.96, built on January 21,
2014. Website:
http://perl.overmeer.net/geo/ All modules in this suite:
"Geo::Point", "Geo::Proj4", "Geo::WKT",
"Math::Polygon", "Geo::GML", "Geo::ISO19139",
"Geo::EOP", "Geo::Format::Envisat", and
"Geo::Format::Landsat".
Please post questions or ideas to the mailinglist at
http://geo-perl@list.hut.fi
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