Package com.luciad.format.gml32.model

Class TLcdGML32AbstractRing

java.lang.Object

com.luciad.datamodel.TLcdDataObject

com.luciad.format.gml32.model.TLcdGML32AbstractRing

All Implemented Interfaces:

ILcdDataObject, ILcdBounded, ILcdCurve, ILcdRing, ILcdShape, ILcdCloneable, ILcdDeepCloneable, Serializable, Cloneable

Direct Known Subclasses:

TLcdGML32LinearRing, TLcdGML32Ring

public class TLcdGML32AbstractRing
extends TLcdDataObject
implements ILcdRing

An abstraction of a ring to support surface boundaries of different complexity. The AbstractRing element is the abstract head of the substitution group for all closed boundaries of a surface patch.

Since:

10.0

See Also:

• Serialized Form

Field Summary

Fields inherited from interface com.luciad.shape.ILcdCurve

INTERPOLATION_CIRCLE_BY_3POINTS, INTERPOLATION_CIRCLE_BY_CENTERPOINT, INTERPOLATION_CIRCULARARC_BY_3POINTS, INTERPOLATION_CIRCULARARC_BY_BULGE, INTERPOLATION_CIRCULARARC_BY_CENTERPOINT, INTERPOLATION_ELLIPTICAL, INTERPOLATION_GEODESIC, INTERPOLATION_LINEAR, INTERPOLATION_MIXED, INTERPOLATION_RHUMB

Constructor Summary

Constructors

Constructor	Description
TLcdGML32AbstractRing()
TLcdGML32AbstractRing(TLcdDataType aType)

Method Summary

Modifier and Type	Method	Description
void	computePointSFCT(double aParam, ILcd3DEditablePoint aPointSFCT)	Computes a point of the curve, defined by the given parameter.
boolean	contains2D(double v, double v1)	Checks whether this ILcdShape contains the given point in the 2D space.
boolean	contains2D(ILcdPoint aILcdPoint)	Checks whether this ILcdShape contains the given ILcdPoint in the 2D space.
boolean	contains3D(double v, double v1, double v2)	Checks whether this ILcdShape contains the given point in the 3D space.
boolean	contains3D(ILcdPoint aILcdPoint)	Checks whether this ILcdShape contains the given ILcdPoint in the 3D space.
ILcdBounds	getBounds()	Returns the ILcdBounds by which the geometry of this ILcdBounded object is bounded.
ILcdPoint	getEndPoint()	Retrieves the end point of the curve.
double	getEndTangent2D()	Returns the angle of the curve's tangent at the end point, in degrees counterclockwise from the direction at 3 o'clock.
ILcdPoint	getFocusPoint()	Returns the focus point of this ILcdShape.
String	getInterpolation()	Returns the interpolation method used by this curve.
double	getLength2D(double aParam1, double aParam2)	Returns the length between two points of the curve, defined by the given parameters.
int	getLineSegmentIntersectionCount(ILcdPoint aP1, ILcdPoint aP2)	Returns the number of intersections between this curve and a line segment defined by the two specified points.
ILcdPoint	getStartPoint()	Retrieves the start point of the curve.
double	getStartTangent2D()	Returns the angle of the curve's tangent at the start point, in degrees counterclockwise from the direction at 3 o'clock.
double	getTangent2D(double aParam)	Returns the angle of the curve's tangent in the point defined by the given parameter, in degrees counterclockwise from the direction at 3 o'clock.

Methods inherited from class com.luciad.datamodel.TLcdDataObject

clone, clone, getDataType, getValue, getValue, hasValue, hasValue, setValue, setValue, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.luciad.util.ILcdCloneable

clone

Constructor Details

TLcdGML32AbstractRing

public TLcdGML32AbstractRing(TLcdDataType aType)

TLcdGML32AbstractRing

public TLcdGML32AbstractRing()

Method Details

getStartPoint

public ILcdPoint getStartPoint()

Description copied from interface: ILcdCurve

Retrieves the start point of the curve.

This is equivalent to computePointSFCT(0).

Specified by:

getStartPoint in interface ILcdCurve

Returns:

the start point of the curve

getEndPoint

public ILcdPoint getEndPoint()

Description copied from interface: ILcdCurve

Retrieves the end point of the curve.

This is equivalent to computePointSFCT(1).

Specified by:

getEndPoint in interface ILcdCurve

Returns:

the end point of the curve

getStartTangent2D

public double getStartTangent2D()

Description copied from interface: ILcdCurve

Returns the angle of the curve's tangent at the start point, in degrees counterclockwise from the direction at 3 o'clock.

The tangent orientation is from the start point towards the rest of the shape.

This is the same as getTangent2D(0).

Specified by:

getStartTangent2D in interface ILcdCurve

Returns:

the curve's angle in the start point

getEndTangent2D

public double getEndTangent2D()

Description copied from interface: ILcdCurve

Returns the angle of the curve's tangent at the end point, in degrees counterclockwise from the direction at 3 o'clock.

The tangent orientation is from the end point, away from the curve before it.

This is the same as getTangent2D(1).

Specified by:

getEndTangent2D in interface ILcdCurve

Returns:

the curve's angle in the end point

getTangent2D

public double getTangent2D(double aParam)

Description copied from interface: ILcdCurve

Returns the angle of the curve's tangent in the point defined by the given parameter, in degrees counterclockwise from the direction at 3 o'clock.

The tangent orientation is from the point at parameter aParam towards the rest of the shape.

• The tangent at parameter 0 is the same as ILcdCurve.getStartTangent2D().
• The tangent at parameter 1 is the same as ILcdCurve.getEndTangent2D().

Specified by:

getTangent2D in interface ILcdCurve

Parameters:

aParam - a value of the closed interval [0,1]

Returns:

the curve's angle in the point defined by the given parameter

getLength2D

public double getLength2D(double aParam1,
 double aParam2)

Description copied from interface: ILcdCurve

Returns the length between two points of the curve, defined by the given parameters.

• When aParam1 == aParam2, the length is 0.
• When aParam1 == 0 and aParam2 == 1, the length is the whole length of the curve.
• When aParam1 > aParam2, the length is (aParam1 to 1) + (0 to aParam2).

Specified by:

getLength2D in interface ILcdCurve

Parameters:

aParam1 - a value of the closed interval [0,1]

aParam2 - a value of the closed interval [0,1]

Returns:

the length of the curve.

computePointSFCT

public void computePointSFCT(double aParam,
 ILcd3DEditablePoint aPointSFCT)

Description copied from interface: ILcdCurve

Computes a point of the curve, defined by the given parameter.

• At parameter 0, the point is the same as ILcdCurve.getStartPoint().
• At parameter 1, the point is the same as ILcdCurve.getEndPoint().

Specified by:

computePointSFCT in interface ILcdCurve

Parameters:

aParam - a value of the closed interval [0,1]

aPointSFCT - the point to store the computed curve point in

getInterpolation

public String getInterpolation()

Description copied from interface: ILcdCurve

Returns the interpolation method used by this curve.

A set of predefined constants are defined in this interface, which are used by the default ILcdCurve implementations provided by LuciadLightspeed.

Custom implementations can define their own constants, and use them to interpret the interpolation of the curve.

Specified by:

getInterpolation in interface ILcdCurve

Returns:

the interpolation method used by this curve.

getLineSegmentIntersectionCount

public int getLineSegmentIntersectionCount(ILcdPoint aP1,
 ILcdPoint aP2)

Description copied from interface: ILcdCurve

Returns the number of intersections between this curve and a line segment defined by the two specified points.

This information can be used to perform containment calculations, if this curve is closed or if this curve is part of a composite closed curve. By determining the number of intersections between this curve and a line segment starting from a given point in a fixed direction, one can determine whether a point is located within the closed curve by using the even-odd rule.

Specified by:

getLineSegmentIntersectionCount in interface ILcdCurve

Parameters:

aP1 - the first point of the line segment

aP2 - the second point of the line segment

Returns:

the number of intersections between the curve and the line segment

getFocusPoint

public ILcdPoint getFocusPoint()

Description copied from interface: ILcdShape

Returns the focus point of this ILcdShape.

Specified by:

getFocusPoint in interface ILcdShape

Returns:

the focus point of this ILcdShape.

contains2D

public boolean contains2D(ILcdPoint aILcdPoint)

Description copied from interface: ILcdShape

Checks whether this ILcdShape contains the given ILcdPoint in the 2D space. Only the first two dimensions of the ILcdShape and the ILcdPoint are considered.

Specified by:

contains2D in interface ILcdShape

Parameters:

aILcdPoint - the ILcdPoint to test.

Returns:

the boolean result of the containment test.

See Also:

• ILcdShape.contains2D(double, double)

contains2D

public boolean contains2D(double v,
 double v1)

Description copied from interface: ILcdShape

Checks whether this ILcdShape contains the given point in the 2D space. Only the first two dimensions of the ILcdShape are considered.

Specified by:

contains2D in interface ILcdShape

Parameters:

v - the x coordinate of the point.

v1 - the y coordinate of the point.

Returns:

the boolean result of the containment test.

contains3D

public boolean contains3D(ILcdPoint aILcdPoint)

Description copied from interface: ILcdShape

Checks whether this ILcdShape contains the given ILcdPoint in the 3D space.

Specified by:

contains3D in interface ILcdShape

Parameters:

aILcdPoint - the ILcdPoint to test.

Returns:

the boolean result of the containment test.

See Also:

• ILcdShape.contains3D(double, double, double)

contains3D

public boolean contains3D(double v,
 double v1,
 double v2)

Description copied from interface: ILcdShape

Checks whether this ILcdShape contains the given point in the 3D space.

Specified by:

contains3D in interface ILcdShape

Parameters:

v - the x coordinate of the point.

v1 - the y coordinate of the point.

v2 - the z coordinate of the point.

Returns:

the boolean result of the containment test.

getBounds

public ILcdBounds getBounds()

Description copied from interface: ILcdBounded

Returns the ILcdBounds by which the geometry of this ILcdBounded object is bounded.

If the geometry does not allow retrieving valid bounds (for example a polyline with 0 points) the return value is unspecified. It is highly recommended to return an undefined bounds. You can create undefined bounds using the default constructors of TLcdLonLatBounds or TLcdXYBounds.

Specified by:

getBounds in interface ILcdBounded

Returns:

the ILcdBounds by which the geometry of this ILcdBounded object is bounded.