oracle.spatial.geometry
Class JGeometry

java.lang.Object
oracle.spatial.geometry.JGeometry

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class JGeometry

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

A Java class that maps Oracle Spatial's SQL type MDSYS.SDO_GEOMETRY. Supports only Oracle JDBC Driver version 8.1.7 or higher. Provides basic access functions to the geomeries stroed in Oracle Spatial database.

Note that this class is not synchornized, meaning if one thread is reading this geometry and another is modifying it (such as changing its ordinates array), there may be in-consistencies.

The main methods for reading/writing db geometries are: load(STRUCT) and store(). Here is a simple example showing how to use these two methods:

     /// reading a geometry from database
     ResultSet rs = statement.executeQuery("SELECT geometry FROM states where name='Florida'");
     STRUCT st = (oracle.sql.STRUCT) rs.getObject(1);
     //convert STRUCT into geometry
     JGeometry j_geom = JGeometry.load(st);

     // ... manipulate the geometry or create a new JGeometry ...

     /// writing a geometry back to database
     PreparedStatement ps = connection.prepareStatement("UPDATE states set geometry=? where name='Florida'");
     //convert JGeometry instance to DB STRUCT
     STRUCT obj = JGeometry.store(j_geom, connection);
     ps.setObject(1, obj);
     ps.execute();
  

Requirements for this class:

   Oracle JDBC driver ver. 8.1.7 or higher;
   JDK 1.2 or higher (for Java2D support)
   

Since:

JDBC Driver 8.1.7

See Also:

Serialized Form

Nested Class Summary

static class

JGeometry.Point A convenient class that represents a double-typed point.

Field Summary

static int	GTYPE_COLLECTION collection geometry type
static int	GTYPE_CURVE curve geoemtry type
static int	GTYPE_MULTICURVE multi-curve geometry type
static int	GTYPE_MULTIPOINT multi-point geometry type
static int	GTYPE_MULTIPOLYGON multi-polygon geometry type
static int	GTYPE_POINT point geometry type
static int	GTYPE_POLYGON polygon geometry type

Constructor Summary

JGeometry(double minX, double minY, double maxX, double maxY, int srid)
Creates a JGeometry instance that is a Rectangle.

JGeometry(double x, double y, double z, int srid)
Constructs a 3D JGeometry instance that is a point

JGeometry(double x, double y, int srid)
Constructs a 2D JGeometry instance that is a point

JGeometry(int gtype, int srid, double x, double y, double z, int[] elemInfo, double[] ordinates)
Constructs a JGeometry instance with given information

JGeometry(int gtype, int srid, int[] elemInfo, double[] ordinates)
Constructs a JGeometry instance with given information

Method Summary

java.lang.Object	clone() constructs an instance that is a clone of this JGeometry.
static double[]	computeArc(double x1, double y1, double x2, double y2, double x3, double y3) Helper method to compute center, radius, and angles for this arc from the three coordinate points.
static JGeometry	createCircle(double x1, double y1, double x2, double y2, double x3, double y3, int srid) Creates a JGeometry that is a 2D Circle.
static JGeometry	createCircle(double x, double y, double radius, int srid) Creates a JGeometry that is a Circle with provided radius and center.
static JGeometry	createLinearLineString(double[] coords, int dim, int srid) Creates a JGeometry that is a single linear Line String.
static JGeometry	createLinearMultiLineString(java.lang.Object[] coords, int dim, int srid) Creates a JGeometry that is a linear multi-linestring.
static JGeometry	createLinearPolygon(double[] coords, int dim, int srid) Creates a JGeometry that is a simple linear Polygon without holes.
static JGeometry	createLinearPolygon(java.lang.Object[] coords, int dim, int srid) Creates a JGeometry that is a linear polygon which may have holes.
static JGeometry	createLRSLinearLineString(double[] coords, int LRSdim, int srid) Creates a JGeometry that is a single LRS linear Line String.
static JGeometry	createLRSLinearMultiLineString(java.lang.Object[] coords, int LRSdim, int srid) Creates a JGeometry that is a LRS linear multi-linestring.
static JGeometry	createLRSLinearPolygon(double[] coords, int LRSdim, int srid) Creates a JGeometry that is a simple LRS linear Polygon without holes.
static JGeometry	createLRSLinearPolygon(java.lang.Object[] coords, int LRSdim, int srid) Creates a JGeometry that is a linear LRS polygon which may have holes.
static JGeometry	createLRSPoint(double[] coord, int LRSdim, int srid)
static JGeometry	createMultiPoint(java.lang.Object[] coords, int dim, int srid) Creates a JGeometry that is a multi-point geometry.
static JGeometry	createPoint(double[] coord, int dim, int srid)
java.awt.Shape	createShape() Creates a Java2D shape object from this JGeometry Note: for point geometry this method returns null.
boolean	equals(java.lang.Object otherObj) Deprecated. This function has been moved to oracle.spatial.util.GML. public static JGeometry fromNodeToGeometry(Node nd) throws DataException { return GML.fromNodeToGeometry(nd); }
int	getDimensions() Gets the dimensionality of this geometry.
int[]	getElemInfo() Gets the reference to the element infomation array of this JGeometry.
double[]	getFirstPoint() Gets the first coordinate for this geometry.
java.awt.geom.Point2D	getJavaPoint() Gets the java2D point rerepsentation of this geometry.
java.awt.geom.Point2D[]	getJavaPoints() Gets the java2D points rerepsentation of this geometry.
java.awt.geom.Point2D	getLabelPoint() Gets the SDO_GEOMETRY.sdo_point as a label point.
double[]	getLastPoint() Gets the last coordinate of the geometry.
double[]	getMBR() Gets the MBR of this geometry.
int	getNumPoints() Gets the number of points or verticies in this geometry.
double[]	getOrdinatesArray() Gets the reference to the ordinate array of this JGeometry.
java.lang.Object[]	getOrdinatesOfElements() Gets an array of the (top-level) elements in this geometry.
double[]	getPoint() Gets the coordinate of this point geometry.
long	getSize() Gets an estimated size of the geometry in bytes.
int	getSRID() Gets the geometry SRID.
int	getType() Gets the geometry type.
boolean	hasCircularArcs() Checks if this geometry is a compound one.
boolean	isCircle() Checks if this geometry represents a circle.
boolean	isGeodeticMBR() Checks if this geometry represents a geodetic MBR.
boolean	isLRSGeometry() Checks if this is a LRS (Linear Reference System) geometry.
boolean	isMultiPoint() Checks if this geometry is of Multi-Point type.
boolean	isPoint() Checks if this geometry is of point type.
boolean	isRectangle() Checks if this geometry represents a rectangle.
static double[]	linearizeArc(double x1, double y1, double x2, double y2, double x3, double y3) For a given arc, returns a linearized array of 2D line segments.
static double[]	linearizeArc(double x1, double y1, double x2, double y2, double x3, double y3, double tolerance) For a given arc, returns a linearized array of 2D line segments.
static double[]	linearizeArc(double x1, double y1, double x2, double y2, double x3, double y3, int numPoints) returns a linearized array of 2D line segments for an ARC given in three points.
static JGeometry	load(STRUCT st) Creates a JGeometry instance from a STRUCT object representing a geometry column in a JDBC result set.
static int	monoMeasure(double[] coords, int dim) Edited version of PL/SQL monotonic_measure() monoMeasure() determines whether a line is monotonically increasing or decreasing Returns: 1 if increasing or all measures null; -1 if decreasing; 0 if measures are inconsistent Note: Repeated measures are not flagged as inconsistent (but are not valid in LRS); assumes measure is in the last position: X,Y,M or X,Y,Z,M
void	setSRID(int srid) Sets the srid for this geometry.
void	setType(int gt) Sets the geometry type for this geometry.
static STRUCT	store(JGeometry geom, java.sql.Connection conn) Convert the given geometry object into an Oracle JDBC STRUCT object.
java.lang.String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

GTYPE_POINT

public static final int GTYPE_POINT

point geometry type

See Also:

Constant Field Values

GTYPE_CURVE

public static final int GTYPE_CURVE

curve geoemtry type

See Also:

Constant Field Values

GTYPE_POLYGON

public static final int GTYPE_POLYGON

polygon geometry type

See Also:

Constant Field Values

GTYPE_COLLECTION

public static final int GTYPE_COLLECTION

collection geometry type

See Also:

Constant Field Values

GTYPE_MULTIPOINT

public static final int GTYPE_MULTIPOINT

multi-point geometry type

See Also:

Constant Field Values

GTYPE_MULTICURVE

public static final int GTYPE_MULTICURVE

multi-curve geometry type

See Also:

Constant Field Values

GTYPE_MULTIPOLYGON

public static final int GTYPE_MULTIPOLYGON

multi-polygon geometry type

See Also:

Constant Field Values

Constructor Detail

JGeometry

public JGeometry(int gtype,
                 int srid,
                 double x,
                 double y,
                 double z,
                 int[] elemInfo,
                 double[] ordinates)

Constructs a JGeometry instance with given information

Parameters:

gtype - the geometry type

srid - the SRS id; if 0 is used then the MDSYS.SDO_GEOMETRY.SDO_SRID will be set to null when converted into DB format.

x - x ordinate of a label point

y - y ordinate of a label point

z - z ordinate of a label point

elemInfo - geometry element info array

ordinates - geometry ordinates array

JGeometry

public JGeometry(int gtype,
                 int srid,
                 int[] elemInfo,
                 double[] ordinates)

Constructs a JGeometry instance with given information

Parameters:

gtype - the geometry type

srid - the SRS id; if 0 is used then the MDSYS.SDO_GEOMETRY.SDO_SRID will be set to null when converted into DB format.

elemInfo - geometry element info array

ordinates - geometry ordinates array

JGeometry

public JGeometry(double x,
                 double y,
                 int srid)

Constructs a 2D JGeometry instance that is a point

Parameters:

x - x ordinate of a label point

y - y ordinate of a label point

srid - the SRS id; if 0 is used then the MDSYS.SDO_GEOMETRY.SDO_SRID will be set to null when converted into DB format.

JGeometry

public JGeometry(double x,
                 double y,
                 double z,
                 int srid)

Constructs a 3D JGeometry instance that is a point

Parameters:

x - x ordinate of a label point

y - y ordinate of a label point

z - z ordinate of a label point

srid - the SRS id; if 0 is used then the MDSYS.SDO_GEOMETRY.SDO_SRID will be set to null when converted into DB format.

JGeometry

public JGeometry(double minX,
                 double minY,
                 double maxX,
                 double maxY,
                 int srid)

Creates a JGeometry instance that is a Rectangle. The coordinates for the lower-left and upper-right corners are supplied.

Parameters:

minX - the minimum x ordinate of the rectangle

minY - the minimum y ordinate of the rectangle

maxX - the maximum x ordinate of the rectangle

maxY - the maximum y ordinate of the rectangle

srid - the SRS id. if 0 is used then the MDSYS.SDO_GEOMETRY.SDO_SRID will be set to null when converted into DB format.

Method Detail

clone

public java.lang.Object clone()

constructs an instance that is a clone of this JGeometry. All the fields of this object is deep-copied over to the clone.

Overrides:

clone in class java.lang.Object

createPoint

public static JGeometry createPoint(double[] coord,
                                    int dim,
                                    int srid)

createLRSPoint

public static JGeometry createLRSPoint(double[] coord,
                                       int LRSdim,
                                       int srid)

Parameters:

LRSdim - LRS dimensionality: X,Y,M=2D; X,Y,Z,M=3D

createCircle

public static JGeometry createCircle(double x,
                                     double y,
                                     double radius,
                                     int srid)

Creates a JGeometry that is a Circle with provided radius and center.

Parameters:

x - the x ordinate of the circle's center

y - the y ordinate of the circle's center

radius - the radius of the circle

srid - the srid of the circle

createCircle

public static JGeometry createCircle(double x1,
                                     double y1,
                                     double x2,
                                     double y2,
                                     double x3,
                                     double y3,
                                     int srid)

Creates a JGeometry that is a 2D Circle. The three supplied coordinates form the circumference of the circle.

Parameters:

x1 - x ordinate of point 1

y1 - y ordinate of point 1

x2 - x ordinate of point 2

y2 - y ordinate of point 2

x3 - x ordinate of point 3

y3 - y ordinate of point 3

srid - srs id for the circle

createLinearLineString

public static JGeometry createLinearLineString(double[] coords,
                                               int dim,
                                               int srid)

Creates a JGeometry that is a single linear Line String.

Parameters:

coords - the coordinates of the linear line string

dim - the dimensionality of the line string.

srid - the srid of the linear line string

Returns:

a JGeometry object that is a linear line string

createLRSLinearLineString

public static JGeometry createLRSLinearLineString(double[] coords,
                                                  int LRSdim,
                                                  int srid)

Creates a JGeometry that is a single LRS linear Line String.

Parameters:

coords - the coordinates of the LRS linear line string

LRSdim - the LRS dimensionality of the line string: X,Y,M=2D; X,Y,Z,M=3D

srid - the srid of the linear line string

Returns:

a JGeometry object that is a LRS linear line string

createLinearMultiLineString

public static JGeometry createLinearMultiLineString(java.lang.Object[] coords,
                                                    int dim,
                                                    int srid)

Creates a JGeometry that is a linear multi-linestring.

Parameters:

coords - an array of all the linestrings' coordinates

dim - the dimensionality of the linestring

srid - the srid of the multi-linestring

createLRSLinearMultiLineString

public static JGeometry createLRSLinearMultiLineString(java.lang.Object[] coords,
                                                       int LRSdim,
                                                       int srid)

Creates a JGeometry that is a LRS linear multi-linestring.

Parameters:

coords - an array of all the LRS linestrings' coordinates

LRSdim - the LRS dimensionality of the linestring: X,Y,M=2D; X,Y,Z,M=3D

srid - the srid of the multi-linestring

createMultiPoint

public static JGeometry createMultiPoint(java.lang.Object[] coords,
                                         int dim,
                                         int srid)

Creates a JGeometry that is a multi-point geometry.

Parameters:

coords - the array of double-typed arrays each containing one point

dim - the dimensionality of each point

srid - the srid for the geometry.

createLinearPolygon

public static JGeometry createLinearPolygon(double[] coords,
                                            int dim,
                                            int srid)

Creates a JGeometry that is a simple linear Polygon without holes. Note that if the supplied coordinate array does not close itslef, meaning the last coordinate is not the same as the first, a new coordinate will be appended to the end of the input coordinates array. the new coordinate repeats the first one.

Parameters:

coords - the coordinates of the linear polygon

dim - the dimensionality of the polygon

srid - the srid of the polygon

createLinearPolygon

public static JGeometry createLinearPolygon(java.lang.Object[] coords,
                                            int dim,
                                            int srid)

Creates a JGeometry that is a linear polygon which may have holes. Each array in the double array parameter represents a single ring of the polygon. The outer ring must be the first in the double array. Note that for each ring, if its coordinate array does not close itslef, meaning the last coordinate is not the same as the first, a new coordinate will be appended to the end of that ring's coordinates array. The new coordinate repeats the first one for the said ring.

Parameters:

coords - an array of double-typed arrays that contains all the rings' coordinates

dim - the dimensionality of the polygon

srid - the srid of the polygon

createLRSLinearPolygon

public static JGeometry createLRSLinearPolygon(double[] coords,
                                               int LRSdim,
                                               int srid)

Creates a JGeometry that is a simple LRS linear Polygon without holes. Note that if the supplied coordinate array does not close itslef, meaning the last coordinate is not the same as the first, a new coordinate will be appended to the end of the input coordinates array. the new coordinate repeats the first one.

Parameters:

coords - the coordinates of the LRS linear polygon

LRSdim - the LRS dimensionality of the polygon: X,Y,M=2D; X,Y,Z,M=3D

srid - the srid of the polygon

createLRSLinearPolygon

public static JGeometry createLRSLinearPolygon(java.lang.Object[] coords,
                                               int LRSdim,
                                               int srid)

Creates a JGeometry that is a linear LRS polygon which may have holes. Each array in the double array parameter represents a single ring of the polygon. The outer ring must be the first in the double array. Note that for each ring, if its coordinate array does not close itslef, meaning the last coordinate is not the same as the first, a new coordinate will be appended to the end of that ring's coordinates array. The new coordinate repeats the first one for the said ring.

Parameters:

coords - an array of double-typed arrays that contains all the rings' coordinates

LRSdim - the LRS dimensionality of the polygon: X,Y,M=2D; X,Y,Z,M=3D

srid - the srid of the polygon

monoMeasure

public static int monoMeasure(double[] coords,
                              int dim)

Edited version of PL/SQL monotonic_measure() monoMeasure() determines whether a line is monotonically increasing or decreasing Returns: 1 if increasing or all measures null; -1 if decreasing; 0 if measures are inconsistent Note: Repeated measures are not flagged as inconsistent (but are not valid in LRS); assumes measure is in the last position: X,Y,M or X,Y,Z,M

Parameters:

coords - an array of double that contains all coordinates

dim - the dimensionality of the feature: X,Y,M=3D; X,Y,Z,M=4D

getType

public int getType()

Gets the geometry type.

Known geom types (1st digit from right):

 GTYPE_POINT = 1;
 GTYPE_CURVE = 2;
 GTYPE_POLYGON = 3;
 GTYPE_COLLECTION = 4;
 GTYPE_MULTIPOINT = 5;
 GTYPE_MULTICURVE = 6;
 GTYPE_MULTIPOLYGON = 7;

Returns:

the geometry type

setType

public void setType(int gt)

Sets the geometry type for this geometry.

Parameters:

gt - the geometry type

getSRID

public int getSRID()

Gets the geometry SRID.

setSRID

public void setSRID(int srid)

Sets the srid for this geometry.

Parameters:

srid - the srid

getLabelPoint

public java.awt.geom.Point2D getLabelPoint()

Gets the SDO_GEOMETRY.sdo_point as a label point.

getPoint

public double[] getPoint()

Gets the coordinate of this point geometry. Retruns null if this geometry is not of point type.

Returns:

a double array which stores the oridnates of this point; null if this geometry is not a point

getJavaPoint

public java.awt.geom.Point2D getJavaPoint()

Gets the java2D point rerepsentation of this geometry. Returns null if this geometry is not of point type.

Returns:

a java Point2D.Double instance if this is a point geometry.

getJavaPoints

public java.awt.geom.Point2D[] getJavaPoints()

Gets the java2D points rerepsentation of this geometry. Returns null if this geometry is not of 2D multipoint type.

Returns:

an array of java Point2D.Double instances if this is a 2D multipoint geometry.

isPoint

public final boolean isPoint()

Checks if this geometry is of point type.

Returns:

true if this geometry is a point

isMultiPoint

public final boolean isMultiPoint()

Checks if this geometry is of Multi-Point type.

Returns:

true if this geometry is a multi-point; otherwise false.

isRectangle

public final boolean isRectangle()

Checks if this geometry represents a rectangle.

Returns:

true if this geometry is a rectangle.

isCircle

public final boolean isCircle()

Checks if this geometry represents a circle.

Returns:

true if this geometry is a circle.

isGeodeticMBR

public final boolean isGeodeticMBR()

Checks if this geometry represents a geodetic MBR.

Returns:

true if this geometry is a geodetic MBR.

isLRSGeometry

public final boolean isLRSGeometry()

Checks if this is a LRS (Linear Reference System) geometry.

Returns:

true if this is a LRS geometry; otherwise false

hasCircularArcs

public final boolean hasCircularArcs()

Checks if this geometry is a compound one. A compound geometry has circular arcs as part of its boundary.

getDimensions

public int getDimensions()

Gets the dimensionality of this geometry.

Returns:

the dimensions of this geoemtry.

getOrdinatesArray

public double[] getOrdinatesArray()

Gets the reference to the ordinate array of this JGeometry. Unless you know what you are doing, you should not modify the values in the returned array.

Returns:

the ordinates array corresponding to the server side MDSYS.SDO_GEOMETRY.SDO_ORDINATE_ARRAY. Null will be returned if this geometry is a point with optimal storage (i.e., the coordinate is stored in the SDO_GEOM.SDO_POINT field).

getElemInfo

public int[] getElemInfo()

Gets the reference to the element infomation array of this JGeometry. Unless you know what you are doing, you should not modify the values in the returned array.

Returns:

the element information array corresponding to the server side MDSYS.SDO_GEOMETRY.SDO_ELEM_INFO_ARRAY.

getNumPoints

public final int getNumPoints()

Gets the number of points or verticies in this geometry. Not to be confused with the number of ordinates or double values in the ordinates array.

Returns:

the number of points (including all parts) in this geometry.

getFirstPoint

public double[] getFirstPoint()

Gets the first coordinate for this geometry. If the geometry is a point, the point's coordinate will be returned. If anything else, the first coordinate in the geometry's ordinates array (MDSYS.SDO_GEOMETRY.SDO_ORDINATES) will be returned.

Returns:

the first point of the geometry in an array that stores the ordinates. The size of the result array is the same as the dimension of the geometry.

getLastPoint

public double[] getLastPoint()

Gets the last coordinate of the geometry. If the geometry is a point its coordinate will be returned. For any other geometry types the last coordinate in the ordinates array (MDSYS.SDO_GEOMETRY.SDO_ORDINATES) will be returned. Note that this method does not take into account the logica separation that may exist for the ordinates array (such as that of a multi-polygon geometry). It merely picks the last coordinate in the array.

Returns:

the last point of the geometry in an array that stores the ordinates. The size of the result array is the same as the dimension of the geometry.

getMBR

public double[] getMBR()

Gets the MBR of this geometry. When a JSDOGeoemtry is first instantiated from a db geometry STRUCT, no MBR is computed. The MBR exists only after the first call to this method. The MBR will be recalucated only when the geoemtry's structure has been modified.

Returns:

a double array containing the minX,minY, maxX,maxY value of the MBR

getOrdinatesOfElements

public java.lang.Object[] getOrdinatesOfElements()

Gets an array of the (top-level) elements in this geometry. Each array element in the result array is itself an array of all the ordinates for a geometry element. In other words, if this geometry has three elements, each with 10,20 and 30 ordinates, then the result Object[] array will have three elements, each being double[10], double[20] and double[30].

Note: applicable only to linear geometries without compound elements.

Returns:

an array of ordinates arrays

createShape

public final java.awt.Shape createShape()

Creates a Java2D shape object from this JGeometry Note: for point geometry this method returns null. You should call getJavaPoint() for point or getJavaPoints() for multi-points.

Returns:

a Java2D shape representation of this geometry; NULL if the geometry is of Point or Multi-point type.

load

public static final JGeometry load(STRUCT st)
                            throws java.sql.SQLException

Creates a JGeometry instance from a STRUCT object representing a geometry column in a JDBC result set.

Parameters:

st - the STRUCT object from an oracle result set.

Returns:

a JGeometry instance if successful; otherwise null is returned.

Throws:

java.sql.SQLException

store

public static STRUCT store(JGeometry geom,
                           java.sql.Connection conn)
                    throws java.sql.SQLException

Convert the given geometry object into an Oracle JDBC STRUCT object. You can then bind the STRUCT object to a SQL statment that inserts or updates the geometry in the database. Usage note: Do not bind the STRUCT object of a JGeometry of the geodetic MBR type to an SQL DML statement that inserts or updates the geometry in the database. a database, you are not allowed to use this method to convert it into a STRUCT object.

Parameters:

geom - the JGeometry instance to be converted.

conn - the connection to use.

Returns:

a Oracle STRUCT object when successful; otherwise null

Throws:

java.sql.SQLException

computeArc

public static final double[] computeArc(double x1,
                                        double y1,
                                        double x2,
                                        double y2,
                                        double x3,
                                        double y3)

Helper method to compute center, radius, and angles for this arc from the three coordinate points.

Returns:

an array if an arc can be computed; null if the three points overlap or are co-linear. The array contains the following (in radians): centerX, centerY, radius, startAngle, midAngle, endAngle;

linearizeArc

public static double[] linearizeArc(double x1,
                                    double y1,
                                    double x2,
                                    double y2,
                                    double x3,
                                    double y3,
                                    int numPoints)

returns a linearized array of 2D line segments for an ARC given in three points.

Returns:

an double array in the form of (x1,y1,x2,y2....xn,yn)

linearizeArc

public static double[] linearizeArc(double x1,
                                    double y1,
                                    double x2,
                                    double y2,
                                    double x3,
                                    double y3,
                                    double tolerance)

For a given arc, returns a linearized array of 2D line segments.

Returns:

an double array in the form of (x1,y1,x2,y2....xn,yn)

linearizeArc

public static double[] linearizeArc(double x1,
                                    double y1,
                                    double x2,
                                    double y2,
                                    double x3,
                                    double y3)

For a given arc, returns a linearized array of 2D line segments. This will use a default tolerance value that is 1% of the arc radius.

Returns:

an double array in the form of (x1,y1,x2,y2....xn,yn)

getSize

public long getSize()

Gets an estimated size of the geometry in bytes.

Returns:

size of this geometry in bytes.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object otherObj)

Deprecated. This function has been moved to oracle.spatial.util.GML. public static JGeometry fromNodeToGeometry(Node nd) throws DataException { return GML.fromNodeToGeometry(nd); }

Overrides:

equals in class java.lang.Object