org.geotools.renderer.shape
Class MultiLineHandler

java.lang.Object
  org.geotools.renderer.shape.MultiLineHandler

All Implemented Interfaces:

ShapeHandler

public class MultiLineHandler

extends java.lang.Object

implements ShapeHandler

Creates Geometry line objects for use by the ShapeRenderer.

Since:

2.1.x

Author:

jeichar

Constructor Summary

MultiLineHandler(ShapeType type, com.vividsolutions.jts.geom.Envelope env, org.opengis.referencing.operation.MathTransform mt, boolean hasOpacity)
Create new instance

Method Summary

boolean	bboxIntersectSegment(boolean intersection, double[] coords, int currentDoubles)
int	getLength(java.lang.Object geometry) Get the length of the given geometry Object in bytes not 16-bit words.
ShapeType	getShapeType() Get the ShapeType of this handler.
java.lang.Object	read(java.nio.ByteBuffer buffer, ShapeType type) Read a geometry from the ByteBuffer.
void	write(java.nio.ByteBuffer buffer, java.lang.Object geometry) Write the geometry into the ByteBuffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiLineHandler

public MultiLineHandler(ShapeType type,
                        com.vividsolutions.jts.geom.Envelope env,
                        org.opengis.referencing.operation.MathTransform mt,
                        boolean hasOpacity)
                 throws org.opengis.referencing.operation.TransformException

Create new instance

Parameters:

type - the type of shape.

env - the area that is visible. If shape is not in area then skip.

mt - the transform to go from data to the envelope (and that should be used to transform the shape coords)

hasOpacity -

Throws:

org.opengis.referencing.operation.TransformException

Method Detail

getShapeType

public ShapeType getShapeType()

Description copied from interface: ShapeHandler

Get the ShapeType of this handler.

Specified by:

getShapeType in interface ShapeHandler

Returns:

The ShapeType.

See Also:

ShapeHandler.getShapeType()

read

public java.lang.Object read(java.nio.ByteBuffer buffer,
                             ShapeType type)

Description copied from interface: ShapeHandler

Read a geometry from the ByteBuffer. The buffer's position, byteOrder, and limit are set to that which is needed. The record has been read as well as the shape type integer. The handler need not worry about reading unused information as the ShapefileReader will correctly adjust the buffer position after this call.

Specified by:

read in interface ShapeHandler

Parameters:

buffer - The ByteBuffer to read from.

Returns:

A geometry object.

See Also:

ShapeHandler.read(java.nio.ByteBuffer, org.geotools.data.shapefile.shp.ShapeType)

bboxIntersectSegment

public boolean bboxIntersectSegment(boolean intersection,
                                    double[] coords,
                                    int currentDoubles)

write

public void write(java.nio.ByteBuffer buffer,
                  java.lang.Object geometry)

Description copied from interface: ShapeHandler

Write the geometry into the ByteBuffer. The position, byteOrder, and limit are all set. The handler is not responsible for writing the record or shape type integer.

Specified by:

write in interface ShapeHandler

Parameters:

buffer - The ByteBuffer to write to.

geometry - The geometry to write.

See Also:

ShapeHandler.write(java.nio.ByteBuffer, java.lang.Object)

getLength

public int getLength(java.lang.Object geometry)

Description copied from interface: ShapeHandler

Get the length of the given geometry Object in bytes not 16-bit words. This is easier to keep track of, since the ByteBuffer deals with bytes. Do not include the 8 bytes of record.

Specified by:

getLength in interface ShapeHandler

Parameters:

geometry - The geometry to analyze.

Returns:

The number of bytes the shape will take up.

See Also:

ShapeHandler.getLength(java.lang.Object)