C# Class MapAround.IO.ShapeFile

Represents an ESRI Shape-file. Implements methods for reading and writing.

ファイルを表示 Open project: gkrsu/maparound.core Class Usage Examples

Public Methods

Method	Description
GetDbaseHeader ( DbaseFieldDescriptor dbFields, int count ) : DbaseFileHeader	Generates a dBase file header.
GetDbaseHeader ( Feature feature, List attributeNames, int count ) : DbaseFileHeader	Gets a stub of dBase file header
GetDbaseHeader ( string dbfFile ) : DbaseFileHeader	Gets the header from a dbf file.
GetShapeType ( IGeometry geom ) : ShapeType	Given a geomtery object, returns the equilivent shape file type.
Read ( string fileName, BoundingRectangle bounds ) : void	Reads a shape-file data (geometries and attributes).
ReadAttributes ( string dbaseFile ) : void	Reads a dBase file and merges dBase records with shapes.
ReadHeader ( Stream stream ) : void	Reads the header oe shape-file. Headers are placed into .shp and .shx files.
ReadIndex ( string fileName ) : int[]	Reads the index of shape-file.
ReadRecord ( Stream stream, int recordOffset, BoundingRectangle bounds ) : ShapeFileRecord	Reads a record from the specified stream.
ReadShapes ( Stream stream, int offsets, BoundingRectangle bounds ) : void	Reads the shapes from specified stream.
ReadShapes ( string fileName, int offsets, BoundingRectangle bounds ) : void	Reads the shapes of shape-file.
ShapeFile ( ) : System	Initializes a new instance of MapAround.IO.Shapefile.
ToString ( ) : string	Returns a System.String that represents the current MapAround.IO.ShapeFiler.
Write ( string fileName, ICollection features ) : void	Writes a collection of features into the shape-file.
WriteAttributes ( string dbaseFile, ICollection featureCollection ) : void	Writes the attribute file.
WriteShapes ( string filename, GeometryCollection geometryCollection ) : void	Writes shapes.

Private Methods

Method	Description
GetShapeHandler ( ShapeType type ) : ShapeHandler	Returns the appropriate class to convert a shaperecord to an MapAround geometry given the type of shape.
MergeAttributes ( DataTable table ) : void	Merges attribute rows with the shape file records.
RecountColumnLengths ( DbaseFileHeader DbaseHeader, IEnumerable Features ) : void	Computes the sizes of attribute fileds taking into accound attribute values of the features.
RecountRecords ( DbaseFileHeader DbaseHeader, IEnumerable Features ) : void	Computes the count of DBF records
isRecordInView ( BoundingRectangle bounds, ShapeFileRecord record ) : bool

Method Details

GetDbaseHeader() public static method

Generates a dBase file header.

public static GetDbaseHeader ( DbaseFieldDescriptor dbFields, int count ) : DbaseFileHeader
dbFields	DbaseFieldDescriptor	An array containing the dBase filed descriptors
count	int	The record count
return	DbaseFileHeader

GetDbaseHeader() public static method

Gets a stub of dBase file header

public static GetDbaseHeader ( Feature feature, List attributeNames, int count ) : DbaseFileHeader
feature	Feature	The feature
attributeNames	List	A list containing the attribute names
count	int	The record count
return	DbaseFileHeader

GetDbaseHeader() public static method

Gets the header from a dbf file.

public static GetDbaseHeader ( string dbfFile ) : DbaseFileHeader
dbfFile	string	The DBF file.
return	DbaseFileHeader

GetShapeType() public static method

Given a geomtery object, returns the equilivent shape file type.

public static GetShapeType ( IGeometry geom ) : ShapeType
geom	IGeometry	A Geometry object.
return	ShapeType

Read() public method

Reads a shape-file data (geometries and attributes).

public Read ( string fileName, BoundingRectangle bounds ) : void
fileName	string	The file name
bounds	BoundingRectangle	The bounding rectangle. Only those records are read, /// which bounding rectangles intersect with this rectangle
return	void

ReadAttributes() public method

Reads a dBase file and merges dBase records with shapes.

public ReadAttributes ( string dbaseFile ) : void
dbaseFile	string	The dBase file name
return	void

ReadHeader() public method

Reads the header oe shape-file. Headers are placed into .shp and .shx files.

public ReadHeader ( Stream stream ) : void
stream	Stream	A System.IO.Stream instance to read
return	void

ReadIndex() public method

Reads the index of shape-file.

public ReadIndex ( string fileName ) : int[]
fileName	string	The file name
return	int[]

ReadRecord() public method

Reads a record from the specified stream.

public ReadRecord ( Stream stream, int recordOffset, BoundingRectangle bounds ) : ShapeFileRecord
stream	Stream	A System.IO.Stream instance to read
recordOffset	int	An offset of record
bounds	BoundingRectangle	An object representing a bounds of the reading area
return	ShapeFileRecord

ReadShapes() public method

Reads the shapes from specified stream.

public ReadShapes ( Stream stream, int offsets, BoundingRectangle bounds ) : void
stream	Stream	A System.IO.Stream instance to read shapes
offsets	int	An array containing the offset of records to read
bounds	BoundingRectangle	The bounding rectangle. Only those records are read, /// which bounding rectangles intersect with this rectangle
return	void

ReadShapes() public method

Reads the shapes of shape-file.

public ReadShapes ( string fileName, int offsets, BoundingRectangle bounds ) : void
fileName	string	The file name
offsets	int	An array containing offsets of the records to read
bounds	BoundingRectangle	The bounding rectangle. Only those records are read, /// which bounding rectangles intersect with this rectangle
return	void

ShapeFile() public method

Initializes a new instance of MapAround.IO.Shapefile.

public ShapeFile ( ) : System
return	System

ToString() public method

Returns a System.String that represents the current MapAround.IO.ShapeFiler.

public ToString ( ) : string
return	string

Write() public method

Writes a collection of features into the shape-file.

public Write ( string fileName, ICollection features ) : void
fileName	string	The string defining file name without .shp extension
features	ICollection	The collection of features to write
return	void

WriteAttributes() public method

Writes the attribute file.

public WriteAttributes ( string dbaseFile, ICollection featureCollection ) : void
dbaseFile	string	file attributes
featureCollection	ICollection	A collection containing features which attributes is to be written
return	void

WriteShapes() public method

Writes shapes.

public WriteShapes ( string filename, GeometryCollection geometryCollection ) : void
filename	string	The string value defining shape file name without .shp extension
geometryCollection	GeometryCollection	MapAround.Geometry.GeometryCollection instance containing /// the geometries to write to shape file
return	void