com.bbn.openmap.dataAccess.shape.input
Class ShpInputStream

java.lang.Object
  com.bbn.openmap.dataAccess.shape.input.ShpInputStream

All Implemented Interfaces:

ShapeConstants

public class ShpInputStream
extends java.lang.Object
implements ShapeConstants

Reads geometry data from a .shp file.

Author:

Doug Van Auken

Field Summary

protected DrawingAttributes

drawingAttributes

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

ShpInputStream(java.io.InputStream is)
Constructor

Method Summary

DrawingAttributes	getDrawingAttributes() Get the DrawingAttributes used for drawing the graphics.
EsriGraphicList	getGeometry() Reads geometry from a .shp file.
EsriGraphicList	getGeometry(EsriGraphicFactory factory) Reads geometry from a .shp file.
EsriGraphicList	getGeometry(int[][] indexData) Deprecated. use getGeometry() instead, indexData isn't used.
protected int[]	getPartOffsets(OMGraphicList sublist) Deprecated. not used.
EsriGraphicList	getPointGeometry(int[][] indexData) Deprecated. not used.
protected int	getPointsPerShape(OMGraphicList sublist) Deprecated. not used.
EsriGraphicList	getPolyGeometry(int[][] indexData, int shapeType) Deprecated. not used.
int	readHeader() Deprecated. not used.
void	setDrawingAttributes(DrawingAttributes da) Set the DrawingAttributes to use for drawing the graphics.

Methods inherited from class java.lang.Object

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

Field Detail

drawingAttributes

protected DrawingAttributes drawingAttributes

Constructor Detail

ShpInputStream

public ShpInputStream(java.io.InputStream is)

Constructor

Parameters:

is - An inputstream to chain with LittleEndianInputStream

Method Detail

setDrawingAttributes

public void setDrawingAttributes(DrawingAttributes da)

Set the DrawingAttributes to use for drawing the graphics.

getDrawingAttributes

public DrawingAttributes getDrawingAttributes()

Get the DrawingAttributes used for drawing the graphics.

getGeometry

public EsriGraphicList getGeometry(int[][] indexData)
                            throws java.lang.Exception

Deprecated. use getGeometry() instead, indexData isn't used.

Reads geometry from a .shp file

Parameters:

indexData - The index data retrieved from the .shx file

Returns:

EsriGraphicList A list of geometry

Throws:

java.lang.Exception

getGeometry

public EsriGraphicList getGeometry()
                            throws java.lang.Exception

Reads geometry from a .shp file. This method will create an EsriGraphicFactory with the default settings (LINETYPE_STRAIGHT and no data projection available).

Returns:

EsriGraphicList A list of geometry

Throws:

java.lang.Exception

getGeometry

public EsriGraphicList getGeometry(EsriGraphicFactory factory)
                            throws java.lang.Exception

Reads geometry from a .shp file. This method will use the provided EsriGraphicFactory.

Parameters:

factory - an EsriGraphicFactory to be used to read from the internal stream.

Returns:

EsriGraphicList A list of geometry

Throws:

java.lang.Exception

getPartOffsets

protected int[] getPartOffsets(OMGraphicList sublist)

Deprecated. not used.

Creates an array that specifies at what index a parts geometry begins with

Returns:

An array whose elements denote the position where a part begins witin an array of point data for a given shape

getPointGeometry

public EsriGraphicList getPointGeometry(int[][] indexData)
                                 throws java.lang.Exception

Deprecated. not used.

Iterates through the given input stream to construct geometry objects

Parameters:

indexData - A list of offsets obtained by iterating through the associated SHX file

Returns:

list An OMGraphicList that contains the collection of objects created by iterating through this input stream *

Throws:

java.lang.Exception

getPointsPerShape

protected int getPointsPerShape(OMGraphicList sublist)

Deprecated. not used.

Iterates through each part of shape to obtain the total number of points

Parameters:

sublist - A list that contains multiple parts

Returns:

The total number of points for a given shape

getPolyGeometry

public EsriGraphicList getPolyGeometry(int[][] indexData,
                                       int shapeType)
                                throws java.lang.Exception

Deprecated. not used.

Iterates through the given input stream to construct geometry objects

Parameters:

shapeType - the type of shape to read

indexData - A list of offsets obtained by iterating through the associated SHX file

Returns:

list An OMGraphicList that contains the collection of objects created by iterating through this input stream *

Throws:

java.lang.Exception

readHeader

public int readHeader()
               throws java.io.IOException

Deprecated. not used.

Reads the header section of a .shp file

Returns:

the shape type

Throws:

java.io.IOException