NAME
Geo::Space - A collection of various items
INHERITANCE
Geo::Space
is a Geo::ShapeSYNOPSIS
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 0.99, built on February 09, 2021. Website: http://perl.overmeer.net/CPAN/
LICENSE
Copyrights 2005-2021 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://dev.perl.org/licenses/