Package com.luciad.geometry.topology.ellipsoidal

Class TLcdEllipsoidalBasicBinaryTopology

java.lang.Object

com.luciad.geometry.topology.ALcd2DBasicBinaryTopology

com.luciad.geometry.topology.ALcd2DBasicBinaryTopologyMultiShape

com.luciad.geometry.topology.ellipsoidal.TLcdEllipsoidalBasicBinaryTopology

All Implemented Interfaces:

ILcd2DEllipsoidalBinaryTopology, ILcd2DBinaryTopology, ILcd2DLineIntersectionTopology

public class TLcdEllipsoidalBasicBinaryTopology
extends ALcd2DBasicBinaryTopologyMultiShape
implements ILcd2DEllipsoidalBinaryTopology, ILcd2DLineIntersectionTopology

Implementation of ILcd2DBinaryTopology and ILcd2DLineIntersectionTopology on an ellipsoidal model of the earth. Instances of ILcdShape aS1 and ILcdShape aS2 are expected to be defined on an ellipsoid. Most sub-algorithms use approximate calculations, hence the need for the absolute and relative tolerances (see ILcd2DEllipsoidalBinaryTopology).

This implementation knows about specific implementations for:

• ILcdPolygon - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdPolyline - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdPolypoint - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCircle - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCircleBy3Points - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdEllipse - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdArc - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdArcBand - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCircularArcByCenterPoint - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCircularArcByBulge - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCircularArcBy3Points - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdGeoBuffer - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdVariableGeoBuffer - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• TLcdLonLatBuffer - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds
• ILcdBounds, - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, TLcdLonLatBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdComplexPolygon - with - ILcdPolygon, ILcdPolyline, ILcdPolypoint, ILcdCircle, ILcdCircleBy3Points, ILcdEllipse, ILcdArc, ILcdArcBand, ILcdCircularArcByCenterPoint, ILcdCircularArcByBulge, ILcdCircularArcBy3Points, ILcdGeoBuffer, ILcdBounds, ILcdComplexPolygon
• ILcdCompositeCurve - with - ILcdCompositeCurve, ILcdShape : each of the ILcdCurve elements of the ILcdCompositeCurve and the ILcdShape should be an implementation of the ILcdShapes mentioned above
• ILcdRing - with - ILcdRing, ILcdShape : each of the ILcdCurve elements of the ILcdRing and the ILcdShape should be an implementation of the ILcdShapes mentioned above
• ILcdShapeList - with - ILcdShapeList, ILcdShape : each of the ILcdShape elements of the ILcdShapeList should be an implementation of the ILcdShapes mentioned above

In case of ILcdGeoBuffer objects, support is only provided if the base shape of the buffer is of the type ILcdPolyline. In case no specific implementation is known the behavior depends on the return value of the method isFallBackOnBoundsWithBounds: if true the bounds of the ILcdShape objects are compared, otherwise a IllegalArgumentException is thrown.

Since:

2.0

Field Summary

Fields inherited from class com.luciad.geometry.topology.ALcd2DBasicBinaryTopologyMultiShape

fBTCircleCircle, fBTDefault, fBTPolygonCircle, fBTPolygonPolygon, fBTPolygonPolyline, fBTPolygonPolypoint, fBTPolylineCircle, fBTPolylinePolyline, fBTPolylinePolypoint, fBTPolypointCircle, fBTPolypointPolypoint, fBTShapeBounds, fBTShapePoint, fBTSRSR

Fields inherited from interface com.luciad.geometry.topology.ILcd2DBinaryTopology

CONTAIN, INSIDE, INTERACT, LINE_INTERSECT

Constructor Summary

Constructors

Constructor	Description
TLcdEllipsoidalBasicBinaryTopology()	Default constructor for the TLcdEllipsoidalBasicBinaryTopology object.
TLcdEllipsoidalBasicBinaryTopology(ILcdEllipsoid aEllipsoid)	Constructor for the TLcdEllipsoidalBasicBinaryTopology object.
TLcdEllipsoidalBasicBinaryTopology(ILcdEllipsoid aEllipsoid, double aRelativeTolerance, double aAbsoluteTolerance)	Constructor for the TLcdEllipsoidalBasicBinaryTopology object.

Method Summary

Modifier and Type	Method	Description
boolean	checkTopology(ILcdShape aS1, ILcdShape aS2, int aRel)	If no implementation is found for the object pair (aS1,aS2) an IllegalArgumentException is thrown except if the method isFallBackOnBoundsWithBounds returns true .
double	getAbsoluteTolerance()	Gets the absolute tolerance (meters) used for approximations.
ILcdEllipsoid	getEllipsoid()	Get the ellipsoid on which the calculations are performed.
double	getRelativeTolerance()	Gets the relative tolerance used for approximations.
boolean	isFallBackOnBoundsWithBounds()	Gets the fallBackOnBoundsWithBounds attribute of the ALcd2DBasicBinaryTopologyMultiShape object.
ILcdPoint[]	lineIntersection(ILcdShape aS1, ILcdShape aS2)	Calculates the intersection points in 2D between the outlines of the given shapes.
int	lineIntersectionSFCT(ILcdShape aS1, ILcdShape aS2, ILcd2DEditablePoint[] aPointsSFCT)	Calculates the intersection points in 2D between the outlines of the given shapes.
void	setAbsoluteTolerance(double aAbsoluteTolerance)	Sets the absolute tolerance (meters) to be used for approximations.
void	setEllipsoid(ILcdEllipsoid aEllipsoid)	Set the ellipsoid on which to perform the calculations.
void	setFallBackOnBoundsWithBounds(boolean aFallBack)	Sets the fallBackOnBoundsWithBounds attribute of the ALcd2DBasicBinaryTopologyMultiShape object.
void	setRelativeTolerance(double aRelativeTolerance)	Sets the relative tolerance to be used for approximations.

Methods inherited from class com.luciad.geometry.topology.ALcd2DBasicBinaryTopologyMultiShape

isTraceOn, setClassTraceOn

Methods inherited from class com.luciad.geometry.topology.ALcd2DBasicBinaryTopology

symRel

Methods inherited from class java.lang.Object

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

Constructor Details

TLcdEllipsoidalBasicBinaryTopology

public TLcdEllipsoidalBasicBinaryTopology()

Default constructor for the TLcdEllipsoidalBasicBinaryTopology object. Uses a default ILcdEllipsoid object corresponding to the ILcdEllipsoid from the WGS84 geodetic datum.

TLcdEllipsoidalBasicBinaryTopology

public TLcdEllipsoidalBasicBinaryTopology(ILcdEllipsoid aEllipsoid)

Constructor for the TLcdEllipsoidalBasicBinaryTopology object.

Parameters:

aEllipsoid - ellipsoid representing the earth.

TLcdEllipsoidalBasicBinaryTopology

public TLcdEllipsoidalBasicBinaryTopology(ILcdEllipsoid aEllipsoid,
 double aRelativeTolerance,
 double aAbsoluteTolerance)

Constructor for the TLcdEllipsoidalBasicBinaryTopology object.

Parameters:

aEllipsoid - ellipsoid representing the earth.

aRelativeTolerance - relative tolerance to be used for approximations.

aAbsoluteTolerance - absolute tolerance to be used for approximations, expressed in meters.

See Also:

• setRelativeTolerance(double)
• setAbsoluteTolerance(double)

Method Details

setEllipsoid

public void setEllipsoid(ILcdEllipsoid aEllipsoid)

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Set the ellipsoid on which to perform the calculations.

Specified by:

setEllipsoid in interface ILcd2DEllipsoidalBinaryTopology

Parameters:

aEllipsoid - The new ellipsoid value.

See Also:

• ILcd2DEllipsoidalBinaryTopology.getEllipsoid()

setRelativeTolerance

public void setRelativeTolerance(double aRelativeTolerance)

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Sets the relative tolerance to be used for approximations.

Specified by:

setRelativeTolerance in interface ILcd2DEllipsoidalBinaryTopology

Parameters:

aRelativeTolerance - The new relativeTolerance value.

See Also:

• ILcd2DEllipsoidalBinaryTopology.getRelativeTolerance()

setAbsoluteTolerance

public void setAbsoluteTolerance(double aAbsoluteTolerance)

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Sets the absolute tolerance (meters) to be used for approximations.

Specified by:

setAbsoluteTolerance in interface ILcd2DEllipsoidalBinaryTopology

Parameters:

aAbsoluteTolerance - The new absoluteTolerance value (meters).

See Also:

• ILcd2DEllipsoidalBinaryTopology.getAbsoluteTolerance()

getEllipsoid

public ILcdEllipsoid getEllipsoid()

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Get the ellipsoid on which the calculations are performed.

Specified by:

getEllipsoid in interface ILcd2DEllipsoidalBinaryTopology

Returns:

The ellipsoid value.

See Also:

• ILcd2DEllipsoidalBinaryTopology.setEllipsoid(com.luciad.geodesy.ILcdEllipsoid)

getRelativeTolerance

public double getRelativeTolerance()

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Gets the relative tolerance used for approximations.

Specified by:

getRelativeTolerance in interface ILcd2DEllipsoidalBinaryTopology

Returns:

The relativeTolerance value.

See Also:

• ILcd2DEllipsoidalBinaryTopology.setRelativeTolerance(double)

getAbsoluteTolerance

public double getAbsoluteTolerance()

Description copied from interface: ILcd2DEllipsoidalBinaryTopology

Gets the absolute tolerance (meters) used for approximations.

Specified by:

getAbsoluteTolerance in interface ILcd2DEllipsoidalBinaryTopology

Returns:

The absoluteTolerance value (meters).

See Also:

• ILcd2DEllipsoidalBinaryTopology.setAbsoluteTolerance(double)

setFallBackOnBoundsWithBounds

public void setFallBackOnBoundsWithBounds(boolean aFallBack)

Description copied from class: ALcd2DBasicBinaryTopologyMultiShape

Sets the fallBackOnBoundsWithBounds attribute of the ALcd2DBasicBinaryTopologyMultiShape object.

Overrides:

setFallBackOnBoundsWithBounds in class ALcd2DBasicBinaryTopologyMultiShape

Parameters:

aFallBack - The new fallBackOnBoundsWithBounds value.

isFallBackOnBoundsWithBounds

public boolean isFallBackOnBoundsWithBounds()

Description copied from class: ALcd2DBasicBinaryTopologyMultiShape

Gets the fallBackOnBoundsWithBounds attribute of the ALcd2DBasicBinaryTopologyMultiShape object.

Overrides:

isFallBackOnBoundsWithBounds in class ALcd2DBasicBinaryTopologyMultiShape

Returns:

The fallBackOnBoundsWithBounds value.

checkTopology

public boolean checkTopology(ILcdShape aS1,
 ILcdShape aS2,
 int aRel)
                      throws IllegalArgumentException

Description copied from class: ALcd2DBasicBinaryTopologyMultiShape

If no implementation is found for the object pair (aS1,aS2) an IllegalArgumentException is thrown except if the method isFallBackOnBoundsWithBounds returns true .

Specified by:

checkTopology in interface ILcd2DBinaryTopology

Overrides:

checkTopology in class ALcd2DBasicBinaryTopologyMultiShape

Parameters:

aS1 - first shape

aS2 - second shape

aRel - a relation to be checked upon

Returns:

whether the relation aRelation holds between the two shapes.

Throws:

IllegalArgumentException - if no specific implementation is known for the two shapes, that is, when the combination of the two given shapes is not supported.

lineIntersection

public ILcdPoint[] lineIntersection(ILcdShape aS1,
 ILcdShape aS2)

Description copied from interface: ILcd2DLineIntersectionTopology

Calculates the intersection points in 2D between the outlines of the given shapes.

Note that the order of the intersection points might be unexpected.

Specified by:

lineIntersection in interface ILcd2DLineIntersectionTopology

Parameters:

aS1 - The first shape.

aS2 - The second shape.

Returns:

If both shapes intersect, an array of zero length if no intersection points were found (e.g., two overlapping circles) or an array containing the intersection points otherwise. If no intersection is found, null is returned.

lineIntersectionSFCT

public int lineIntersectionSFCT(ILcdShape aS1,
 ILcdShape aS2,
 ILcd2DEditablePoint[] aPointsSFCT)

Description copied from interface: ILcd2DLineIntersectionTopology

Calculates the intersection points in 2D between the outlines of the given shapes. The result is filled in the given point array. The number of intersection points is returned as an integer.

Note that the order of the intersection points might be unexpected.

Specified by:

lineIntersectionSFCT in interface ILcd2DLineIntersectionTopology

Parameters:

aS1 - The first shape.

aS2 - The second shape.

aPointsSFCT - The array of points in which the results should be stored.

Returns:

If both shapes intersect, the number of intersection points that were found (>= 0; e.g., 0 for two overlapping circles). If no intersection is found, -1 is returned.