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Mark Overmeer > Geo-Point > Geo::Space

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Module Version: 0.97   Source  

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()
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

SEE ALSO ^

This module is part of Geo-Point distribution version 0.97, built on January 23, 2018. Website: http://perl.overmeer.net/CPAN/

LICENSE ^

Copyrights 2005-2018 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/

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