com.mysema.query.spatial

Class MultiSurfaceExpression<T extends org.geolatte.geom.GeometryCollection>

java.lang.Object

com.mysema.query.types.expr.DslExpression<T>

com.mysema.query.types.expr.SimpleExpression<T>

com.mysema.query.spatial.GeometryExpression<T>

com.mysema.query.spatial.GeometryCollectionExpression<T>

com.mysema.query.spatial.MultiSurfaceExpression<T>

Type Parameters:

T -

All Implemented Interfaces:

Expression<T>, Serializable

Direct Known Subclasses:

MultiPolygonExpression

public abstract class MultiSurfaceExpression<T extends org.geolatte.geom.GeometryCollection>
extends GeometryCollectionExpression<T>

A MultiSurface is a 2-dimensional GeometryCollection whose elements are Surfaces, all using coordinates from the same coordinate reference system. The geometric interiors of any two Surfaces in a MultiSurface may not intersect in the full coordinate system. The boundaries of any two coplanar elements in a MultiSurface may intersect, at most, at a finite number of Points. If they were to meet along a curve, they could be merged into a single surface.

Author:

tiwe

See Also:

Serialized Form

Field Summary

Fields inherited from class com.mysema.query.types.expr.DslExpression

hashCode, mixin

Constructor Summary

Constructors

Constructor and Description
MultiSurfaceExpression(Expression<T> mixin)

Method Summary

Methods

Modifier and Type	Method and Description
NumberExpression<Double>	area() The area of this MultiSurface, as measured in the spatial reference system of this MultiSurface.
PointExpression<org.geolatte.geom.Point>	centroid() The mathematical centroid for this MultiSurface.
PointExpression<org.geolatte.geom.Point>	pointOnSurface() A Point guaranteed to be on this MultiSurface.

Methods inherited from class com.mysema.query.spatial.GeometryCollectionExpression

geometryN, numGeometries

Methods inherited from class com.mysema.query.spatial.GeometryExpression

asBinary, asText, boundary, buffer, contains, contains, convexHull, crosses, crosses, difference, difference, dimension, disjoint, disjoint, distance, distance, distanceSphere, distanceSpheroid, envelope, eq, eq, geometryType, intersection, intersection, intersects, intersects, isEmpty, isSimple, overlaps, overlaps, relate, relate, srid, symDifference, symDifference, touches, touches, transform, union, union, within, within

Methods inherited from class com.mysema.query.types.expr.SimpleExpression

as, as, count, countDistinct, eqAll, eqAny, in, in, in, isNotNull, isNull, ne, ne, neAll, neAny, notIn, notIn, notIn, nullif, nullif, when, when

Methods inherited from class com.mysema.query.types.expr.DslExpression

equals, getType, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.mysema.query.types.Expression

accept

Constructor Detail

MultiSurfaceExpression

public MultiSurfaceExpression(Expression<T> mixin)

Method Detail

area

public NumberExpression<Double> area()

The area of this MultiSurface, as measured in the spatial reference system of this MultiSurface.

Returns:

centroid

public PointExpression<org.geolatte.geom.Point> centroid()

The mathematical centroid for this MultiSurface. The result is not guaranteed to be on this MultiSurface.

Returns:

pointOnSurface

public PointExpression<org.geolatte.geom.Point> pointOnSurface()

A Point guaranteed to be on this MultiSurface.

Returns: