org.gvsig.fmap.dal.store.dgn.lib

Class DGNReader

java.lang.Object

org.gvsig.fmap.dal.store.dgn.lib.DGNReader

public class DGNReader
extends Object

Clase dedicada a leer del fichero DGN.

Constructor Summary

Constructors

Constructor and Description
DGNReader(String pathFich)
DGNReader(String pathFich, boolean logErrors)

Method Summary

Modifier and Type	Method and Description
String	DGNDumpElement(DGNInfo psInfo, DGNElemCore psElement) Muestra por consola los elementos que contiene el DGN.
DGNLink	DGNGetLinkage(DGNElemCore psElement, Integer index, Integer type, Integer entityCode, Integer mslink, Pattern data)
int	DGNGetLinkageCount(DGNElemCore psElement)
double[]	DGNGetRawExtents(DGNInfo info, byte[] pabyRawData, DGNElemCore elemento) Devuelve los extent de una fila.
int	DGNGetShapeFillInfo(DGNElemCore psElem) Fetch fill color for a shape.
int	DGNGotoElement(int element_id) Seek to indicated element.
Color	DGNLookupColor(int color_index) Translate color index into RGB values.
DGNElemCore	DGNReadElement()
Rectangle2D	getBoundingBox() Devuelve el rectángulo del extent.
DGNInfo	getInfo() Devuelve la información del DGN.
int	getNumEntities() Devuelve el número de elementos.
boolean	is3D()
Iterator	linksiterator(DGNElemCore psElement)

Methods inherited from class java.lang.Object

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

Constructor Detail

DGNReader

public DGNReader(String pathFich)
          throws DataException

Throws:

DataException

DGNReader

public DGNReader(String pathFich,
                 boolean logErrors)
          throws DataException

Throws:

DataException

Method Detail

is3D

public boolean is3D()

getInfo

public DGNInfo getInfo()

Devuelve la información del DGN.

Returns:

DGNInfo Información.

getNumEntities

public int getNumEntities()

Devuelve el número de elementos.

Returns:

Número de elementos.

getBoundingBox

public Rectangle2D getBoundingBox()

Devuelve el rectángulo del extent.

Returns:

Rectángulo.

DGNGotoElement

public int DGNGotoElement(int element_id)

Seek to indicated element. Changes what element will be read on the next call to DGNReadElement(). Note that this function requires and index, and one will be built if not already available.

Parameters:

element_id - the element to seek to. These values are sequentially ordered starting at zero for the first element.

Returns:

returns TRUE on success or FALSE on failure.

DGNReadElement

public DGNElemCore DGNReadElement()

DGNGetRawExtents

public double[] DGNGetRawExtents(DGNInfo info,
                                 byte[] pabyRawData,
                                 DGNElemCore elemento)

Devuelve los extent de una fila.

Parameters:

info - Información del DGN.

pabyRawData - Vector de byte.

elemento - Elemento.

Returns:

Vector de double.

DGNDumpElement

public String DGNDumpElement(DGNInfo psInfo,
                             DGNElemCore psElement)

Muestra por consola los elementos que contiene el DGN.

Parameters:

psInfo - Información del DGN.

psElement - elemento

DGNGetLinkage

public DGNLink DGNGetLinkage(DGNElemCore psElement,
                             Integer index,
                             Integer type,
                             Integer entityCode,
                             Integer mslink,
                             Pattern data)

linksiterator

public Iterator linksiterator(DGNElemCore psElement)

DGNGetLinkageCount

public int DGNGetLinkageCount(DGNElemCore psElement)

DGNLookupColor

public Color DGNLookupColor(int color_index)

Translate color index into RGB values. If no color table has yet been encountered in the file a hard-coded "default" color table will be used. This seems to be what Microstation uses as a color table when there isn't one in a DGN file but I am not absolutely convinced it is appropriate.

Parameters:

color_index - the color index to lookup.

Returns:

TRUE on success or FALSE on failure. May fail if color_index is out of range.

DGNGetShapeFillInfo

public int DGNGetShapeFillInfo(DGNElemCore psElem)

Fetch fill color for a shape. This method will check for a 0x0041 user attribute linkaged with fill color information for the element. If found the function returns TRUE, and places the fill color in pnColor, otherwise FALSE is returned and pnColor is not updated.

Parameters:

psElem - the element.

Returns:

index of color on success or -1 on failure.