Package org.geolatte.geom

Interface MeasureGeometryOperations

All Known Implementing Classes:

DefaultMeasureGeometryOperations

public interface MeasureGeometryOperations

A set of operations on measured (2DM/3DM) Geometrys.

Author:

Karel Maesen, Geovise BVBA creation-date: 4/4/12

Field Summary

Fields

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

Method Summary

Modifier and Type	Method	Description
<P extends C2D & Measured> Geometry<P>	locateAlong(Geometry<P> geometry, double mValue)	Creates an operation to calculate the GeometryCollection that matches the specified M-coordinate value.
<P extends C2D & Measured> Geometry<P>	locateBetween(Geometry<P> geometry, double startMeasure, double endMeasure)	Creates an operation to calculate the GeometryCollection that matches the specified range of M-coordinate value inclusively.
<P extends Position & Measured> double	maximumMeasure(Geometry<P> geometry)	Creates a GeometryOperation that returns the maximum measure value of the Positions of the specified Geometry.
<P extends C2D & Measured> double	measureAt(Geometry<P> geometry, C2D pos, double tolerance)	Creates a GeometryOperation to calculate the measure value at the specified point
<P extends C2D,M extends C2D & Measured> Geometry<M>	measureOnLength(Geometry<P> geometry, Class<M> positionTypeMarker, boolean keepBeginMeasure)	Creates a GeometryOperation that creates a new Geometry that has the same 2D/3D-coordinates as the specified Geometry, and with measure values that correspond with the length along it (or begin-measure + length).
<P extends Position & Measured> double	minimumMeasure(Geometry<P> geometry)	Creates a GeometryOperation that returns the minimum measure value of the Positions of the specified Geometry.

Field Detail

Default

static final MeasureGeometryOperations Default

Default implementation of this interface

Method Detail

locateBetween

<P extends C2D & Measured> Geometry<P> locateBetween(Geometry<P> geometry,
                                                     double startMeasure,
                                                     double endMeasure)

Creates an operation to calculate the GeometryCollection that matches the specified range of M-coordinate value inclusively.

This method is only valid if executed on 0- or 1-dimensional objects or collections thereof.

The semantics implemented here are specified by SFA 1.2.1, section 6.1.2.6.

Parameters:

geometry - the geometry on which to perform the calculation

startMeasure - the start of the specified range of M-coordinate values

endMeasure - the end of the specified range of M-coordinate values

Returns:

a GeometryOperation that calculates the GeometryCollection matching the specified range of M-coordinate values.

Throws:

IllegalArgumentException - if this method is executed on 2-dimensional Geometrys.

locateAlong

<P extends C2D & Measured> Geometry<P> locateAlong(Geometry<P> geometry,
                                                   double mValue)

Creates an operation to calculate the GeometryCollection that matches the specified M-coordinate value.

This method is only valid if executed on 0- or 1-dimensional objects or collections thereof.

The semantics implemented here are specified by SFA 1.2.1, section 6.1.2.6.

Parameters:

geometry - the geometry on which to perform the calculation

mValue - the specified M-coordinate value

Returns:

a GeometryOperation that calculates the GeometryCollection matching the specified M-coordinate value.

Throws:

IllegalArgumentException - if this method is executed on 2-dimensional Geometrys.

measureAt

<P extends C2D & Measured> double measureAt(Geometry<P> geometry,
                                            C2D pos,
                                            double tolerance)

Creates a GeometryOperation to calculate the measure value at the specified point

Parameters:

geometry - a linear Geometry

pos - a Position within tolerance of the geometry

tolerance - the maximum value allowed for distance between pos and geometry.

Returns:

a GeometryOperation that returns the measure value at the specified point on the specified geometry

measureOnLength

<P extends C2D,M extends C2D & Measured> Geometry<M> measureOnLength(Geometry<P> geometry,
                                                                           Class<M> positionTypeMarker,
                                                                           boolean keepBeginMeasure)

Creates a GeometryOperation that creates a new Geometry that has the same 2D/3D-coordinates as the specified Geometry, and with measure values that correspond with the length along it (or begin-measure + length).

The positionTypeMarker is needed because the compiler can't figure our the relationship between the input CRS and its measured variant.

Parameters:

geometry - the Geometry for which to build measures

keepBeginMeasure - if true, than the measure of the first coordinate is used as start-value

positionTypeMarker - the type of Position for the result of the created operations

Returns:

a GeometryOperation that returns a Geometry with measures increasing with length

minimumMeasure

<P extends Position & Measured> double minimumMeasure(Geometry<P> geometry)

Creates a GeometryOperation that returns the minimum measure value of the Positions of the specified Geometry. If the geometry is empty, this method returns Double.NaN

Parameters:

geometry - the geometry for which the minimum measure is sought

Returns:

the minimum measure

Throws:

IllegalArgumentException - if the geometry is not a measured geometry

maximumMeasure

<P extends Position & Measured> double maximumMeasure(Geometry<P> geometry)

Creates a GeometryOperation that returns the maximum measure value of the Positions of the specified Geometry. If the geometry is empty, this method returns Double.NaN

Parameters:

geometry - the geometry for which the maximum measure is sought

Returns:

the minimum measure

Throws:

IllegalArgumentException - if the geometry is not a measured geometry