Package org.geolatte.geom

Interface ProjectedGeometryOperations

All Known Implementing Classes:

JTSGeometryOperations

public interface ProjectedGeometryOperations

Defines standard operations on Geometrys with projected coordinate systems.

The semantics of the operations is as specified in Simple Feature Access - Part 1: common architecture

Author:

Karel Maesen, Geovise BVBA

Field Summary

Fields

Modifier and Type	Field	Description
static ProjectedGeometryOperations	Default	Default implementation of this interface

Method Summary

Modifier and Type	Method	Description
<P extends C2D,G extends Geometry<P> & Polygonal<P>> double	area(G geometry)	Calculates the area of the specified Geometry.
<P extends C2D> Geometry<P>	boundary(Geometry<P> geometry)	Calculates the boundary of the specified Geometry.
<P extends C2D> Geometry<P>	buffer(Geometry<P> geometry, double distance)	Calculates a Geometry that represents all points whose distance from the specified Geometry is less than or equal the specified distance.
<P extends C2D,G extends Geometry<P> & Polygonal<P>> Point<P>	centroid(G geometry)	Calculates a centroid for the specified Geometry.
<P extends C2D> boolean	contains(Geometry<P> geometry, Geometry<P> other)	Checks if the first specified Geometry spatially contains the second.
<P extends C2D> Geometry<P>	convexHull(Geometry<P> geometry)	Calculates the convex hull of the specified Geometry.
<P extends C2D> boolean	crosses(Geometry<P> geometry, Geometry<P> other)	Checks if the specified Geometrys cross.
<P extends C2D> Geometry<P>	difference(Geometry<P> geometry, Geometry<P> other)	Calculates the point set difference of the specified Geometrys.
<P extends C2D> double	distance(Geometry<P> geometry, Geometry<P> other)	Calculates the shortest distance between any two points in the two Geometrys in the coordinate reference system of this Geometry.
<P extends C2D> Geometry<P>	intersection(Geometry<P> geometry, Geometry<P> other)	Calculates the point set intersection of the specified Geometrys.
<P extends C2D> boolean	intersects(Geometry<P> geometry, Geometry<P> other)	Checks if the specified Geometrys intersect.
<P extends C2D> boolean	isSimple(Geometry<P> geometry)	Tests the simplicity of the specified Geometry.
<P extends C2D,G extends Geometry<P> & Linear<P>> double	length(G geometry)	Calculates the length of the specified Geometry.
<P extends C2D> boolean	overlaps(Geometry<P> geometry, Geometry<P> other)	Checks if the specified Geometrys overlap.
<P extends C2D> boolean	relates(Geometry<P> geometry, Geometry<P> other, String matrix)	Checks if the specified Geometrys are spatially related by testing for intersections between the interior, boundary and exterior of the two geometric objects as specified by the values in the intersection pattern matrix.
<P extends C2D,G extends Geometry<P>> G	reverse(G geometry)	Creates a Geometry with the positions of the input Geometry in reverse order.
<P extends C2D> Geometry<P>	symmetricDifference(Geometry<P> geometry, Geometry<P> other)	Calculates the point set symmetric difference of the specified Geometrys.
<P extends C2D> boolean	touches(Geometry<P> geometry, Geometry<P> other)	Checks if the specified Geometrys touch.
<P extends C2D> Geometry<P>	union(Geometry<P> geometry, Geometry<P> other)	Calculates the point set union of the specified Geometrys.

Field Detail

Default

static final ProjectedGeometryOperations Default

Default implementation of this interface

Method Detail

isSimple

<P extends C2D> boolean isSimple(Geometry<P> geometry)

Tests the simplicity of the specified Geometry.

Parameters:

geometry - the Geometry to test for simplicity.

Returns:

True iff the specified Geometry is simple.

boundary

<P extends C2D> Geometry<P> boundary(Geometry<P> geometry)

Calculates the boundary of the specified Geometry.

Parameters:

geometry - the Geometry for which to calculate the boundary.

Returns:

a Geometry representing the boundary of the specified Geometry.

reverse

<P extends C2D,G extends Geometry<P>> G reverse(G geometry)

Creates a Geometry with the positions of the input Geometry in reverse order.

Parameters:

geometry - the Geometry to reverse

Returns:

a Geometry with the same positions as the specified input Geometry but in reverse order

intersects

<P extends C2D> boolean intersects(Geometry<P> geometry,
                                   Geometry<P> other)

Checks if the specified Geometrys intersect.

Parameters:

geometry - the first Geometry operand of the intersection test

other - the second Geometry operand of the intersection test

Returns:

true iff the specified Geometrys spatially intersect

touches

<P extends C2D> boolean touches(Geometry<P> geometry,
                                Geometry<P> other)

Checks if the specified Geometrys touch.

Parameters:

geometry - the first Geometry operand of the touch test

other - the second Geometry operand of the touch test

Returns:

true iff the specified Geometrys spatially touch

crosses

<P extends C2D> boolean crosses(Geometry<P> geometry,
                                Geometry<P> other)

Checks if the specified Geometrys cross.

Parameters:

geometry - the first Geometry operand of the cross test

other - the second Geometry operand of the cross test

Returns:

true iff the specified Geometrys spatially cross

contains

<P extends C2D> boolean contains(Geometry<P> geometry,
                                 Geometry<P> other)

Checks if the first specified Geometry spatially contains the second.

Parameters:

geometry - the first Geometry operand of the containment test

other - the second Geometry operand of the containment test

Returns:

true iff the first specified Geometry spatially contains the second

overlaps

<P extends C2D> boolean overlaps(Geometry<P> geometry,
                                 Geometry<P> other)

Checks if the specified Geometrys overlap.

Parameters:

geometry - the first Geometry operand of the overlap test

other - the second Geometry operand of the overlap test

Returns:

true iff the specified Geometrys spatially overlap

relates

<P extends C2D> boolean relates(Geometry<P> geometry,
                                Geometry<P> other,
                                String matrix)

Checks if the specified Geometrys are spatially related by testing for intersections between the interior, boundary and exterior of the two geometric objects as specified by the values in the intersection pattern matrix. This returns false if all the tested intersections are empty except exterior (this) intersect exterior (another).

Parameters:

geometry - the first Geometry operand of the relates test

other - the second Geometry operand of the relates test

matrix - the intersection pattern matrix

Returns:

true iff this instance intersects the specifed other Geometry

distance

<P extends C2D> double distance(Geometry<P> geometry,
                                Geometry<P> other)

Calculates the shortest distance between any two points in the two Geometrys in the coordinate reference system of this Geometry. Only the X/Y-coordinates are used in the distance calculation; M- and Z-coordinates are ignored.

Parameters:

geometry - the first Geometry

other - the second Geometry

Returns:

the shortest distance between the two specified Geometries

buffer

<P extends C2D> Geometry<P> buffer(Geometry<P> geometry,
                                   double distance)

Calculates a Geometry that represents all points whose distance from the specified Geometry is less than or equal the specified distance.

Calculations are in the CoordinateReferenceSystem of this Geometry.

Z- or M-coordinates are ignored in the buffering operation; and the result will always be a 2D geometry.

Parameters:

geometry - the Geometry for which to calculate the buffer

distance - the buffer distance

Returns:

a 2D Geometry representing the buffer of the specified Geometry with the specified distance.

convexHull

<P extends C2D> Geometry<P> convexHull(Geometry<P> geometry)

Calculates the convex hull of the specified Geometry.

Parameters:

geometry - the Geometry for which to calculate the convex hull.

Returns:

the convex hull for the specified Geometry.

intersection

<P extends C2D> Geometry<P> intersection(Geometry<P> geometry,
                                         Geometry<P> other)

Calculates the point set intersection of the specified Geometrys.

Parameters:

geometry - the first Geometry

other - the second Geometry

Returns:

a Geometry representing the point set intersection between the two specified Geometries

union

<P extends C2D> Geometry<P> union(Geometry<P> geometry,
                                  Geometry<P> other)

Calculates the point set union of the specified Geometrys.

Parameters:

geometry - the first Geometry

other - the second Geometry

Returns:

a Geometry representing the point set union between the two specified Geometries

difference

<P extends C2D> Geometry<P> difference(Geometry<P> geometry,
                                       Geometry<P> other)

Calculates the point set difference of the specified Geometrys.

Parameters:

geometry - the first Geometry

other - the second Geometry

Returns:

a Geometry representing the point set difference between the two specified Geometries

symmetricDifference

<P extends C2D> Geometry<P> symmetricDifference(Geometry<P> geometry,
                                                Geometry<P> other)

Calculates the point set symmetric difference of the specified Geometrys.

Parameters:

geometry - the first Geometry

other - the second Geometry

Returns:

a Geometry representing the point set symmetric difference between the two specified Geometries

length

<P extends C2D,G extends Geometry<P> & Linear<P>> double length(G geometry)

Calculates the length of the specified Geometry.

Parameters:

geometry - the Geometry

Returns:

the length of the specified Geometry

area

<P extends C2D,G extends Geometry<P> & Polygonal<P>> double area(G geometry)

Calculates the area of the specified Geometry.

Parameters:

geometry - the Geometry

Returns:

the area of the specified Geometry

centroid

<P extends C2D,G extends Geometry<P> & Polygonal<P>> Point<P> centroid(G geometry)

Calculates a centroid for the specified Geometry.

Type Parameters:

G - Polygonal Geometry

Parameters:

geometry - the Geometry

Returns:

the centroid of the specified Geometry as a Point