Class VariableBuffer

Creates a buffer polygon with a varying buffer distance at each vertex along a line. Vertex distances may be zero.

Only single linestring is supported as input, since buffer widths generally need to be specified individually for each line.

Inheritance

object

VariableBuffer

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.Operation.Buffer

Assembly: NetTopologySuite.dll

Syntax

public class VariableBuffer

Constructors

VariableBuffer(Geometry, double[])

Creates a generator for a variable-distance line buffer.

Declaration

public VariableBuffer(Geometry line, double[] distance)

Parameters

Type	Name	Description
Geometry	line	The linestring to buffer
double[]	distance	The buffer distance for each vertex of the line

Methods

Buffer(Geometry, double, double)

Creates a buffer polygon along a line with the buffer distance interpolated between a start distance and an end distance.

Declaration

public static Geometry Buffer(Geometry line, double startDistance, double endDistance)

Parameters

Type	Name	Description
Geometry	line	The line to buffer
double	startDistance	The buffer width at the start of the line
double	endDistance	The buffer width at the end of the line

Returns

Type	Description
Geometry	The variable-distance buffer polygon

Buffer(Geometry, double, double, double)

Creates a buffer polygon along a line with the buffer distance interpolated between a start distance, a middle distance and an end distance. The middle distance is attained at the vertex at or just past the half-length of the line. For smooth buffering of a LinearRing (or the rings of a Polygon) the start distance and end distance should be equal.

Declaration

public static Geometry Buffer(Geometry line, double startDistance, double midDistance, double endDistance)

Parameters

Type	Name	Description
Geometry	line	The line to buffer
double	startDistance	The buffer width at the start of the line
double	midDistance	The buffer width at the middle vertex of the line
double	endDistance	The buffer width at the end of the line

Returns

Type	Description
Geometry	The variable-distance buffer polygon

Buffer(Geometry, double[])

Creates a buffer polygon along a line with the distance specified at each vertex.

Declaration

public static Geometry Buffer(Geometry line, double[] distance)

Parameters

Type	Name	Description
Geometry	line	The line to buffer
double[]	distance	The buffer distance for each vertex of the line

Returns

Type	Description
Geometry	The variable-width buffer polygon

GetResult()

Computes the variable buffer polygon.

Declaration

public Geometry GetResult()

Returns

Type	Description
Geometry	A buffer polygon