org.opengis.geometry.coordinate

Interface LineString

All Superinterfaces:

CurveSegment, GenericCurve

All Known Subinterfaces:

LineSegment

@UML(identifier="GM_LineString",
     specification=ISO_19107)
public interface LineString
extends CurveSegment

A sequence of line segments, each having a parameterization like the one LineSegment. The class essentially combines a List<LineSegment> into a single object, with the obvious savings of storage space.

Since:

GeoAPI 1.0

Author:

Martin Desruisseaux (IRD)

See Also:

GeometryFactory.createLineString(java.util.List<org.opengis.geometry.coordinate.Position>)

Method Summary

Modifier and Type	Method and Description
List<LineSegment>	asLineSegments() Decomposes a line string into an equivalent sequence of line segments.
PointArray	getControlPoints() Returns a sequence of positions between which the curve is linearly interpolated.

Methods inherited from interface CurveSegment

getBoundary, getCurve, getInterpolation, getNumDerivativesAtEnd, getNumDerivativesAtStart, getNumDerivativesInterior, getSamplePoints, reverse

Methods inherited from interface GenericCurve

asLineString, forConstructiveParam, forParam, getEndConstructiveParam, getEndParam, getEndPoint, getParamForPoint, getStartConstructiveParam, getStartParam, getStartPoint, getTangent, length, length

Method Detail

getControlPoints

@UML(identifier="controlPoint",
     obligation=MANDATORY,
     specification=ISO_19107)
PointArray getControlPoints()

Returns a sequence of positions between which the curve is linearly interpolated. The first position in the sequence is the start Point of this LineString, and the last point in the sequence is the end point of this LineString.

Returns:

The control points between which the curve is linearly interpolated.

asLineSegments

@UML(identifier="asGM_LineSegment",
     obligation=MANDATORY,
     specification=ISO_19107)
List<LineSegment> asLineSegments()

Decomposes a line string into an equivalent sequence of line segments.

Returns:

The sequence of line segments.