com.bbn.openmap.layer.shape
Class ESRIPolygonRecord

java.lang.Object
  com.bbn.openmap.dataAccess.shape.ShapeUtils
      com.bbn.openmap.layer.shape.ESRIRecord
          com.bbn.openmap.layer.shape.ESRIPolygonRecord

All Implemented Interfaces:

ShapeConstants

Direct Known Subclasses:

ESRILinkPolygonRecord

public class ESRIPolygonRecord
extends ESRIRecord

The Polygon record type. This class implements the ESRI Shapefile polygon AND arc/polyline record types.

Version:

$Revision: 1.8 $ $Date: 2009/01/21 01:24:42 $

Author:

Ray Tomlinson, Tom Mitchell, HACK-author blame it on aculline

Field Summary

ESRIBoundingBox	bounds The bounding box.
ESRIPoly[]	polygons An array of polygons.
protected int	shapeType Polygon or arc/polyline?.

Fields inherited from class com.bbn.openmap.layer.shape.ESRIRecord

contentLength, recordNumber

Fields inherited from interface com.bbn.openmap.dataAccess.shape.ShapeConstants

DBF_ATTRIBUTE, DBF_AUTOINCREMENT, DBF_BINARY, DBF_CHARACTER, DBF_DATE, DBF_DOUBLE, DBF_FLOAT, DBF_LOGICAL, DBF_LONG, DBF_MEMO, DBF_NUMERIC, DBF_OLE, DBF_TIMESTAMP, DBF_TYPE_AUTOINCREMENT, DBF_TYPE_BINARY, DBF_TYPE_CHARACTER, DBF_TYPE_DATE, DBF_TYPE_DOUBLE, DBF_TYPE_FLOAT, DBF_TYPE_LOGICAL, DBF_TYPE_LONG, DBF_TYPE_MEMO, DBF_TYPE_NUMERIC, DBF_TYPE_OLE, DBF_TYPE_TIMESTAMP, PARAM_DBF, PARAM_SHP, PARAM_SHX, SHAPE_BOUNDS_ATTRIBUTE, SHAPE_DBF_DASHPATTERN, SHAPE_DBF_DASHPHASE, SHAPE_DBF_DESCRIPTION, SHAPE_DBF_FILLCOLOR, SHAPE_DBF_INFO_ATTRIBUTE, SHAPE_DBF_LINECOLOR, SHAPE_DBF_LINEWIDTH, SHAPE_DBF_SELECTCOLOR, SHAPE_FILE_HEADER_LENGTH, SHAPE_FILE_RECORD_HEADER_LENGTH, SHAPE_INDEX_ATTRIBUTE, SHAPE_MAX_MEASURE_ATTRIBUTE, SHAPE_MAX_Z_ATTRIBUTE, SHAPE_MEASURE_ATTRIBUTE, SHAPE_MIN_MEASURE_ATTRIBUTE, SHAPE_MIN_Z_ATTRIBUTE, SHAPE_TYPE_ARC, SHAPE_TYPE_MULTIPATCH, SHAPE_TYPE_MULTIPOINT, SHAPE_TYPE_MULTIPOINTM, SHAPE_TYPE_MULTIPOINTZ, SHAPE_TYPE_NULL, SHAPE_TYPE_POINT, SHAPE_TYPE_POINTM, SHAPE_TYPE_POINTZ, SHAPE_TYPE_POLYGON, SHAPE_TYPE_POLYGONM, SHAPE_TYPE_POLYGONZ, SHAPE_TYPE_POLYLINE, SHAPE_TYPE_POLYLINEM, SHAPE_TYPE_POLYLINEZ, SHAPE_Z_ATTRIBUTE

Constructor Summary

ESRIPolygonRecord()

ESRIPolygonRecord(byte[] b, int off)
Initialize a polygon record from the given buffer.

Method Summary

void	add(double[] radians) Add a poly to the record.
OMGeometry	addOMGeometry(OMGeometryList list) Generates OMGeometry and adds them to the given list.
void	addOMGraphics(OMGraphicList list, DrawingAttributes drawingAttributes) Generates 2D OMGraphics and adds them to the given list.
ESRIBoundingBox	getBoundingBox() Gets this record's bounding box.
int	getRecordLength() Yields the length of this record's data portion.
int	getShapeType() Gets this record's shape type as an int.
boolean	isPolygon() Is this a polygon or a arc/polyline?
void	setPolygon(boolean isPolygon) Set the poly type (polygon or arc/polyline).
int	write(byte[] b, int off) Writes this polygon to the given buffer at the given offset.

Methods inherited from class com.bbn.openmap.layer.shape.ESRIRecord

getBinaryStoreSize, getContentLength, getRecordNumber

Methods inherited from class com.bbn.openmap.dataAccess.shape.ShapeUtils

getStringForType, readBEInt, readBox, readLEDouble, readLEInt, readLEInt, readLELong, readPoint, writeBEInt, writeBox, writeLEDouble, writeLEInt, writeLELong, writePoint

Methods inherited from class java.lang.Object

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

Field Detail

shapeType

protected int shapeType

Polygon or arc/polyline?.

bounds

public ESRIBoundingBox bounds

The bounding box.

polygons

public ESRIPoly[] polygons

An array of polygons.

Constructor Detail

ESRIPolygonRecord

public ESRIPolygonRecord()

ESRIPolygonRecord

public ESRIPolygonRecord(byte[] b,
                         int off)
                  throws java.io.IOException

Initialize a polygon record from the given buffer.

Parameters:

b - the buffer

off - the offset into the buffer where the data starts

Throws:

java.io.IOException

Method Detail

isPolygon

public boolean isPolygon()

Is this a polygon or a arc/polyline?

Returns:

boolean

setPolygon

public void setPolygon(boolean isPolygon)

Set the poly type (polygon or arc/polyline).

add

public void add(double[] radians)

Add a poly to the record.

Parameters:

radians - coordinates: y,x,y,x,... (lat,lon) order in RADIANS!

addOMGraphics

public void addOMGraphics(OMGraphicList list,
                          DrawingAttributes drawingAttributes)

Generates 2D OMGraphics and adds them to the given list. If you are using jdk1.1.X, you'll have to comment out this method, because jdk1.1.X doesn't know about the java.awt.Stroke and java.awt.Paint interfaces.

Specified by:

addOMGraphics in class ESRIRecord

Parameters:

list - the graphics list

drawingAttributes - the drawingAttributes to paint the poly.

addOMGeometry

public OMGeometry addOMGeometry(OMGeometryList list)

Generates OMGeometry and adds them to the given list.

Specified by:

addOMGeometry in class ESRIRecord

Parameters:

list - the geometry list

getBoundingBox

public ESRIBoundingBox getBoundingBox()

Gets this record's bounding box.

Specified by:

getBoundingBox in class ESRIRecord

Returns:

a bounding box

getShapeType

public int getShapeType()

Gets this record's shape type as an int. Shape types are enumerated on the ShapeUtils class.

Specified by:

getShapeType in class ESRIRecord

Returns:

the shape type as an int (either SHAPE_TYPE_POLYGON or SHAPE_TYPE_ARC)

getRecordLength

public int getRecordLength()

Yields the length of this record's data portion.

(44 + (numParts * 4) + (numPoints * 16))
3 Integers + 4 doubles == 3 * 4bytes + 4 * 8bytes == 12 + 32 == 44.

Specified by:

getRecordLength in class ESRIRecord

Returns:

number of bytes equal to the size of this record's data

write

public int write(byte[] b,
                 int off)

Writes this polygon to the given buffer at the given offset.

Overrides:

write in class ESRIRecord

Parameters:

b - the buffer

off - the offset

Returns:

the number of bytes written