Class GeoPolygon.SimpleGeoPolygon

java.lang.Object

org.episteme.social.geography.GeoPolygon.SimpleGeoPolygon

All Implemented Interfaces:

Serializable, Boundary<EarthCoordinate>

Enclosing class:

GeoPolygon

public static class GeoPolygon.SimpleGeoPolygon
extends Object
implements Boundary<EarthCoordinate>

Inner class representing a simple polygon (1 exterior + N interiors).

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SimpleGeoPolygon()

Method Summary

Modifier and Type	Method	Description
void	addInterior(List<GeodeticCoordinate> points)
boolean	contains(EarthCoordinate point)	Checks if a point is contained within this boundary.
Boundary<EarthCoordinate>	convexHull()	Computes the convex hull of this boundary.
Real	getBoundaryMeasure()	Computes the boundary measure (perimeter/surface area).
BoundingBox<EarthCoordinate>	getBoundingBox()	Returns the bounding box of this boundary.
EarthCoordinate	getCentroid()	Returns the centroid of this boundary.
int	getDimension()	Returns the dimensionality of this boundary.
List<GeodeticCoordinate>	getExterior()
Real	getMeasure()	Computes the measure (length/area/volume) of this boundary.
Boundary<EarthCoordinate>	intersection(Boundary<EarthCoordinate> other)	Computes the intersection of this boundary with another.
boolean	intersects(Boundary<EarthCoordinate> other)	Checks if this boundary intersects with another.
boolean	isEmpty()	Checks if this boundary is empty.
Boundary<EarthCoordinate>	scale(Real factor)	Creates a scaled copy of this boundary.
void	setExterior(List<GeodeticCoordinate> points)
Boundary<EarthCoordinate>	translate(EarthCoordinate offset)	Creates a copy of this boundary translated by a vector.
Boundary<EarthCoordinate>	union(Boundary<EarthCoordinate> other)	Computes the union of this boundary with another.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SimpleGeoPolygon

public SimpleGeoPolygon()

Method Details

setExterior

public void setExterior(List<GeodeticCoordinate> points)

getExterior

public List<GeodeticCoordinate> getExterior()

addInterior

public void addInterior(List<GeodeticCoordinate> points)

getDimension

public int getDimension()

Description copied from interface: Boundary

Returns the dimensionality of this boundary.

Specified by:

getDimension in interface Boundary<EarthCoordinate>

Returns:

0 for point, 1 for line, 2 for polygon, 3 for polyhedron

contains

public boolean contains(EarthCoordinate point)

Description copied from interface: Boundary

Checks if a point is contained within this boundary.

Specified by:

contains in interface Boundary<EarthCoordinate>

Parameters:

point - the point to test

Returns:

true if point is inside or on the boundary

isEmpty

public boolean isEmpty()

Description copied from interface: Boundary

Checks if this boundary is empty.

Specified by:

isEmpty in interface Boundary<EarthCoordinate>

Returns:

true if the boundary has no extent

getCentroid

public EarthCoordinate getCentroid()

Description copied from interface: Boundary

Returns the centroid of this boundary.

Specified by:

getCentroid in interface Boundary<EarthCoordinate>

Returns:

the geometric center

getBoundingBox

public BoundingBox<EarthCoordinate> getBoundingBox()

Description copied from interface: Boundary

Returns the bounding box of this boundary.

Specified by:

getBoundingBox in interface Boundary<EarthCoordinate>

Returns:

an axis-aligned bounding box

getMeasure

public Real getMeasure()

Description copied from interface: Boundary

Computes the measure (length/area/volume) of this boundary. For 2D: area, for 3D: volume, for 1D: length.

Specified by:

getMeasure in interface Boundary<EarthCoordinate>

Returns:

the measure as a Real value

getBoundaryMeasure

public Real getBoundaryMeasure()

Description copied from interface: Boundary

Computes the boundary measure (perimeter/surface area). For 2D: perimeter, for 3D: surface area.

Specified by:

getBoundaryMeasure in interface Boundary<EarthCoordinate>

Returns:

the boundary measure

intersects

public boolean intersects(Boundary<EarthCoordinate> other)

Description copied from interface: Boundary

Checks if this boundary intersects with another.

Specified by:

intersects in interface Boundary<EarthCoordinate>

Parameters:

other - the other boundary

Returns:

true if boundaries intersect

union

public Boundary<EarthCoordinate> union(Boundary<EarthCoordinate> other)

Description copied from interface: Boundary

Computes the union of this boundary with another.

Specified by:

union in interface Boundary<EarthCoordinate>

Parameters:

other - the other boundary

Returns:

the union boundary

intersection

public Boundary<EarthCoordinate> intersection(Boundary<EarthCoordinate> other)

Description copied from interface: Boundary

Computes the intersection of this boundary with another.

Specified by:

intersection in interface Boundary<EarthCoordinate>

Parameters:

other - the other boundary

Returns:

the intersection boundary

convexHull

public Boundary<EarthCoordinate> convexHull()

Description copied from interface: Boundary

Computes the convex hull of this boundary.

Specified by:

convexHull in interface Boundary<EarthCoordinate>

Returns:

the convex hull

translate

public Boundary<EarthCoordinate> translate(EarthCoordinate offset)

Description copied from interface: Boundary

Creates a copy of this boundary translated by a vector.

Specified by:

translate in interface Boundary<EarthCoordinate>

Parameters:

offset - the translation vector (as point)

Returns:

translated boundary

scale

public Boundary<EarthCoordinate> scale(Real factor)

Description copied from interface: Boundary

Creates a scaled copy of this boundary.

Specified by:

scale in interface Boundary<EarthCoordinate>

Parameters:

factor - the scaling factor

Returns:

scaled boundary