org.deegree.geometry.primitive
Interface Tin

All Superinterfaces:

GeometricPrimitive, Geometry, GMLObject, Surface, TriangulatedSurface

All Known Implementing Classes:

DefaultTin

public interface Tin
extends TriangulatedSurface

A TriangulatedSurface that uses the Delaunay algorithm or a similar algorithm complemented with consideration of breaklines, stoplines, and maximum length of triangle sides. These networks satisfy the Delaunay's criterion away from the modifications: For each triangle in the network, the circle passing through its vertices does not contain, in its interior, the vertex of any other triangle.

One can notice that the useful information provided for the Tin element is solely the trianglePatches, since the stopLines and breakLines (along with maxLength and ControlPoints) are only needed to obtain the triangulation. However, GML allows to specify both, so the interface provides access to them.

Version:

$Revision$

Author:

Markus Schneider, Andrei Ionita, last edited by: $Author$

Nested Class Summary

Nested classes/interfaces inherited from interface org.deegree.geometry.primitive.Surface

Surface.SurfaceType

Nested classes/interfaces inherited from interface org.deegree.geometry.primitive.GeometricPrimitive

GeometricPrimitive.PrimitiveType

Nested classes/interfaces inherited from interface org.deegree.geometry.Geometry

Geometry.GeometryType

Method Summary

List<List<LineStringSegment>>	getBreakLines() Returns the break lines that must be respected by the triangulation.
Points	getControlPoints() Returns the control points (vertices) of the triangles.
Measure	getMaxLength(Unit uom) Returns the maximum length of all triangle side.
List<List<LineStringSegment>>	getStopLines() Returns the stop lines that must be respected by the triangulation.
Surface.SurfaceType	getSurfaceType() Must always return Surface.SurfaceType.Tin.

Methods inherited from interface org.deegree.geometry.primitive.TriangulatedSurface

getPatches

Methods inherited from interface org.deegree.geometry.primitive.Surface

getArea, getExteriorRingCoordinates, getInteriorRingsCoordinates, getPerimeter, getPrimitiveType

Methods inherited from interface org.deegree.geometry.primitive.GeometricPrimitive

getGeometryType

Methods inherited from interface org.deegree.geometry.Geometry

contains, crosses, equals, getBuffer, getCentroid, getConvexHull, getCoordinateDimension, getCoordinateSystem, getDifference, getDistance, getEnvelope, getId, getIntersection, getPrecision, getUnion, intersects, isBeyond, isDisjoint, isWithin, isWithinDistance, overlaps, setCoordinateSystem, setGMLProperties, setId, setPrecision, touches

Methods inherited from interface org.deegree.gml.GMLObject

getGMLProperties

Method Detail

getSurfaceType

Surface.SurfaceType getSurfaceType()

Must always return Surface.SurfaceType.Tin.

Specified by:

getSurfaceType in interface Surface

Specified by:

getSurfaceType in interface TriangulatedSurface

Returns:

Surface.SurfaceType.Tin

getStopLines

List<List<LineStringSegment>> getStopLines()

Returns the stop lines that must be respected by the triangulation.

Returns:

the stop lines

getBreakLines

List<List<LineStringSegment>> getBreakLines()

Returns the break lines that must be respected by the triangulation.

Returns:

the break lines

getMaxLength

Measure getMaxLength(Unit uom)

Returns the maximum length of all triangle side.

Parameters:

uom - units-of-measure that the length shall be expressed as, or null for units of the underlying coordinate system

Returns:

the length in the the requested uom

getControlPoints

Points getControlPoints()

Returns the control points (vertices) of the triangles.

Returns:

the control points