org.deegree.gml.geometry
Class GML3GeometryBaseReader

java.lang.Object
  org.deegree.gml.geometry.GML3GeometryBaseReader

Direct Known Subclasses:

GML3CurveSegmentReader, GML3GeometryReader, GML3SurfacePatchReader

 class GML3GeometryBaseReader
extends Object

TODO add documentation here

Version:

$Revision:$, $Date:$

Author:

Markus Schneider , last edited by: $Author:$

Field Summary

protected GeometryFactory	geomFac
protected String	gmlNs Namespace for the parsed GML elements, either CommonNamespaces.GMLNS or CommonNamespaces.GML3_2_NS.
protected GMLVersion	version

Constructor Summary

protected

GML3GeometryBaseReader(GMLVersion version, GeometryFactory geomFac)

Method Summary

protected CRS	determineActiveCRS(XMLStreamReaderWrapper xmlStream, CRS defaultCRS) Determines the active CRS using the value of the srsName attribute of the current geometry element.
protected int	determineCoordDimensions(XMLStreamReaderWrapper xmlStream, int defaultCoordDimensions) Applies a simple heuristic to determine the number of coordinate dimensions.
protected Angle	parseAngleType(XMLStreamReaderWrapper xmlStream)
protected List<Point>	parseCoordinates(XMLStreamReaderWrapper xmlStream, CRS crs)
protected double[]	parseCoordType(XMLStreamReaderWrapper xmlStream)
protected Point	parseDirectPositionType(XMLStreamReaderWrapper xmlStream, CRS defaultCRS)
protected double[]	parseDoubleList(XMLStreamReaderWrapper xmlStream)
protected Length	parseLengthType(XMLStreamReaderWrapper xmlStream)
protected Measure	parseMeasureType(XMLStreamReaderWrapper xmlStream)
protected boolean	parseOrientation(XMLStreamReaderWrapper xmlStream) Parses the orientation attribute from element that the associated XMLStreamReader points to.
protected List<Point>	parsePosList(XMLStreamReaderWrapper xmlStream, CRS crs)

Methods inherited from class java.lang.Object

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

Field Detail

version

protected final GMLVersion version

gmlNs

protected final String gmlNs

Namespace for the parsed GML elements, either CommonNamespaces.GMLNS or CommonNamespaces.GML3_2_NS.

geomFac

protected final GeometryFactory geomFac

Constructor Detail

GML3GeometryBaseReader

protected GML3GeometryBaseReader(GMLVersion version,
                                 GeometryFactory geomFac)

Method Detail

parseDirectPositionType

protected Point parseDirectPositionType(XMLStreamReaderWrapper xmlStream,
                                        CRS defaultCRS)
                                 throws XMLParsingException,
                                        XMLStreamException

Throws:

XMLParsingException

XMLStreamException

parsePosList

protected List<Point> parsePosList(XMLStreamReaderWrapper xmlStream,
                                   CRS crs)
                            throws XMLParsingException,
                                   XMLStreamException

Throws:

XMLParsingException

XMLStreamException

parseCoordinates

protected List<Point> parseCoordinates(XMLStreamReaderWrapper xmlStream,
                                       CRS crs)
                                throws XMLParsingException,
                                       XMLStreamException

Throws:

XMLParsingException

XMLStreamException

parseCoordType

protected double[] parseCoordType(XMLStreamReaderWrapper xmlStream)
                           throws XMLStreamException

Throws:

XMLStreamException

parseLengthType

protected Length parseLengthType(XMLStreamReaderWrapper xmlStream)
                          throws XMLStreamException

Throws:

XMLStreamException

parseAngleType

protected Angle parseAngleType(XMLStreamReaderWrapper xmlStream)
                        throws XMLStreamException

Throws:

XMLStreamException

parseMeasureType

protected Measure parseMeasureType(XMLStreamReaderWrapper xmlStream)
                            throws XMLStreamException

Throws:

XMLStreamException

determineActiveCRS

protected CRS determineActiveCRS(XMLStreamReaderWrapper xmlStream,
                                 CRS defaultCRS)

Determines the active CRS using the value of the srsName attribute of the current geometry element.

Parameters:

defaultCRS - default CSR for the geometry, this is returned if the geometry element has no srsName attribute

Returns:

the applicable CRS, may be null

parseDoubleList

protected double[] parseDoubleList(XMLStreamReaderWrapper xmlStream)
                            throws XMLParsingException,
                                   XMLStreamException

Throws:

XMLParsingException

XMLStreamException

parseOrientation

protected boolean parseOrientation(XMLStreamReaderWrapper xmlStream)

Parses the orientation attribute from element that the associated XMLStreamReader points to.

Returns:

true, if the orientation is '+' or not present, false if the attribute is '-'

determineCoordDimensions

protected int determineCoordDimensions(XMLStreamReaderWrapper xmlStream,
                                       int defaultCoordDimensions)

Applies a simple heuristic to determine the number of coordinate dimensions.

Parameters:

defaultCoordDimensions - default coordinate dimensionality, this is returned if the element has no srsDimension attribute

Returns:

coordinate dimensionality