
Oracle® Spatial Java API Reference 11g Release 2 (11.2) E1182902 

PREV CLASS NEXT CLASS  FRAMES NO FRAMES  
SUMMARY: NESTED  FIELD  CONSTR  METHOD  DETAIL: FIELD  CONSTR  METHOD 
java.lang.Object
oracle.spatial.util.SDODoubleGeneralPath
public final class SDODoubleGeneralPath
The GeneralPath
class represents a geometric path constructed from straight lines, and quadratic and cubic (Bézier) curves. It can contain multiple subpaths.
The winding rule specifies how the interior of a path is determined. There are two types of winding rules: EVEN_ODD and NON_ZERO.
An EVEN_ODD winding rule means that enclosed regions of the path alternate between interior and exterior areas as traversed from the outside of the path towards a point inside the region.
A NON_ZERO winding rule means that if a ray is drawn in any direction from a given point to infinity and the places where the path intersects the ray are examined, the point is inside of the path if and only if the number of times that the path crosses the ray from left to right does not equal the number of times that the path crosses the ray from right to left.
Field Summary  

static int 
WIND_EVEN_ODD An evenodd winding rule for determining the interior of a path. 
static int 
WIND_NON_ZERO A nonzero winding rule for determining the interior of a path. 
Constructor Summary  

SDODoubleGeneralPath() Constructs a new GeneralPath object. 

SDODoubleGeneralPath(int rule) Constructs a new GeneralPath object with the specified winding rule to control operations that require the interior of the path to be defined. 

SDODoubleGeneralPath(int rule, int initialCapacity) Constructs a new GeneralPath object with the specified winding rule and the specified initial capacity to store path coordinates. 

SDODoubleGeneralPath(java.awt.Shape s) Constructs a new GeneralPath object from an arbitrary Shape object. 
Method Summary  

void 
append(java.awt.geom.PathIterator pi, boolean connect) Appends the geometry of the specified PathIterator object to the path, possibly connecting the new geometry to the existing path segments with a line segment. 
void 
append(java.awt.Shape s, boolean connect) Appends the geometry of the specified Shape object to the path, possibly connecting the new geometry to the existing path segments with a line segment. 
java.lang.Object 
clone() Creates a new object of the same class as this object. 
void 
closePath() Closes the current subpath by drawing a straight line back to the coordinates of the last moveTo . 
boolean 
contains(double x, double y) Tests if the specified coordinates are inside the boundary of this Shape . 
boolean 
contains(double x, double y, double w, double h) Tests if the specified rectangular area is inside the boundary of this Shape . 
boolean 
contains(java.awt.geom.Point2D p) Tests if the specified Point2D is inside the boundary of this Shape . 
boolean 
contains(java.awt.geom.Rectangle2D r) Tests if the specified Rectangle2D is inside the boundary of this Shape . 
java.awt.Shape 
createTransformedShape(java.awt.geom.AffineTransform at) Returns a new transformed Shape . 
void 
curveTo(double x1, double y1, double x2, double y2, double x3, double y3) Adds a curved segment, defined by three new points, to the path by drawing a Bézier curve that intersects both the current coordinates and the coordinates (x3, y3), using the specified points (x1, y1) and (x2, y2) as Bézier control points. 
java.awt.Rectangle 
getBounds() Return the bounding box of the path. 
java.awt.geom.Rectangle2D 
getBounds2D() Returns the bounding box of the path. 
java.awt.geom.Point2D 
getCurrentPoint() Returns the coordinates most recently added to the end of the path as a Point2D object. 
java.awt.geom.PathIterator 
getPathIterator(java.awt.geom.AffineTransform at) Returns a PathIterator object that iterates along the boundary of this Shape and provides access to the geometry of the outline of this Shape . 
java.awt.geom.PathIterator 
getPathIterator(java.awt.geom.AffineTransform at, double flatness) Returns a PathIterator object that iterates along the boundary of the flattened Shape and provides access to the geometry of the outline of the Shape . 
int 
getWindingRule() Returns the fill style winding rule. 
boolean 
intersects(double x, double y, double w, double h) Tests if the interior of this Shape intersects the interior of a specified set of rectangular coordinates. 
boolean 
intersects(java.awt.geom.Rectangle2D r) Tests if the interior of this Shape intersects the interior of a specified Rectangle2D . 
void 
lineTo(double x, double y) Adds a point to the path by drawing a straight line from the current coordinates to the new specified coordinates. 
void 
moveTo(double x, double y) Adds a point to the path by moving to the specified coordinates. 
void 
quadTo(double x1, double y1, double x2, double y2) Adds a curved segment, defined by two new points, to the path by drawing a Quadratic curve that intersects both the current coordinates and the coordinates (x2, y2), using the specified point (x1, y1) as a quadratic parametric control point. 
void 
reset() Resets the path to empty. 
void 
setWindingRule(int rule) Sets the winding rule for this path to the specified value. 
void 
transform(java.awt.geom.AffineTransform at) Transforms the geometry of this path using the specified AffineTransform . 
Methods inherited from class java.lang.Object 

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Field Detail 

public static final int WIND_EVEN_ODD
public static final int WIND_NON_ZERO
Constructor Detail 

public SDODoubleGeneralPath()
GeneralPath
object. If an operation performed on this path requires the interior of the path to be defined then the default NON_ZERO winding rule is used.
WIND_NON_ZERO
public SDODoubleGeneralPath(int rule)
GeneralPath
object with the specified winding rule to control operations that require the interior of the path to be defined.
rule
 the winding ruleWIND_EVEN_ODD
, WIND_NON_ZERO
public SDODoubleGeneralPath(int rule, int initialCapacity)
GeneralPath
object with the specified winding rule and the specified initial capacity to store path coordinates. This number is an initial guess as to how many path segments are in the path, but the storage is expanded as needed to store whatever path segments are added to this path.
rule
 the winding ruleinitialCapacity
 the estimate for the number of path segments in the pathWIND_EVEN_ODD
, WIND_NON_ZERO
public SDODoubleGeneralPath(java.awt.Shape s)
GeneralPath
object from an arbitrary Shape
object. All of the initial geometry and the winding rule for this path are taken from the specified Shape
object.
s
 the specified Shape
objectMethod Detail 

public void moveTo(double x, double y)
x, y
 the specified coordinatespublic void lineTo(double x, double y)
x, y
 the specified coordinatespublic void quadTo(double x1, double y1, double x2, double y2)
x1, y1
 the coordinates of the first quadratic control pointx2, y2
 the coordinates of the final endpointpublic void curveTo(double x1, double y1, double x2, double y2, double x3, double y3)
x1, y1
 the coordinates of the first Béezier control pointx2, y2
 the coordinates of the second Bézier control pointx3, y3
 the coordinates of the final endpointpublic void closePath()
moveTo
. If the path is already closed then this method has no effect.public void append(java.awt.Shape s, boolean connect)
Shape
object to the path, possibly connecting the new geometry to the existing path segments with a line segment. If the connect
parameter is true
and the path is not empty then any initial moveTo
in the geometry of the appended Shape
is turned into a lineTo
segment. If the destination coordinates of such a connecting lineTo
segment match the ending coordinates of a currently open subpath then the segment is omitted as superfluous. The winding rule of the specified Shape
is ignored and the appended geometry is governed by the winding rule specified for this path.s
 the Shape
whose geometry is appended to this pathconnect
 a boolean to control whether or not to turn an initial moveTo
segment into a lineTo
segment to connect the new geometry to the existing pathpublic void append(java.awt.geom.PathIterator pi, boolean connect)
PathIterator
object to the path, possibly connecting the new geometry to the existing path segments with a line segment. If the connect
parameter is true
and the path is not empty then any initial moveTo
in the geometry of the appended Shape
is turned into a lineTo
segment. If the destination coordinates of such a connecting lineTo
segment match the ending coordinates of a currently open subpath then the segment is omitted as superfluous. The winding rule of the specified Shape
is ignored and the appended geometry is governed by the winding rule specified for this path.pi
 the PathIterator
whose geometry is appended to this pathconnect
 a boolean to control whether or not to turn an initial moveTo
segment into a lineTo
segment to connect the new geometry to the existing pathpublic int getWindingRule()
WIND_EVEN_ODD
, WIND_NON_ZERO
, setWindingRule(int)
public void setWindingRule(int rule)
rule
 an integer representing the specified winding ruleIllegalArgumentException
 if rule
is not either WIND_EVEN_ODD
or WIND_NON_ZERO
WIND_EVEN_ODD
, WIND_NON_ZERO
, getWindingRule()
public java.awt.geom.Point2D getCurrentPoint()
Point2D
object.Point2D
object containing the ending coordinates of the path or null
if there are no points in the path.public void reset()
public void transform(java.awt.geom.AffineTransform at)
AffineTransform
. The geometry is transformed in place, which permanently changes the boundary defined by this object.at
 the AffineTransform
used to transform the areapublic java.awt.Shape createTransformedShape(java.awt.geom.AffineTransform at)
Shape
.at
 the AffineTransform
used to transform a new Shape
.Shape
, transformed with the specified AffineTransform
.public java.awt.Rectangle getBounds()
getBounds
in interface java.awt.Shape
Rectangle
object that bounds the current path.public java.awt.geom.Rectangle2D getBounds2D()
getBounds2D
in interface java.awt.Shape
Rectangle2D
object that bounds the current path.public boolean contains(double x, double y)
Shape
.contains
in interface java.awt.Shape
x, y
 the specified coordinatestrue
if the specified coordinates are inside this Shape
; false
otherwisepublic boolean contains(java.awt.geom.Point2D p)
Point2D
is inside the boundary of this Shape
.contains
in interface java.awt.Shape
p
 the specified Point2D
true
if this Shape
contains the specified Point2D
, false
otherwise.public boolean contains(double x, double y, double w, double h)
Shape
.contains
in interface java.awt.Shape
x, y
 the specified coordinatesw
 the width of the specified rectangular areah
 the height of the specified rectangular areatrue
if this Shape
contains the specified rectangluar area; false
otherwise.public boolean contains(java.awt.geom.Rectangle2D r)
Rectangle2D
is inside the boundary of this Shape
.contains
in interface java.awt.Shape
r
 a specified Rectangle2D
true
if this Shape
bounds the specified Rectangle2D
; false
otherwise.public boolean intersects(double x, double y, double w, double h)
Shape
intersects the interior of a specified set of rectangular coordinates.intersects
in interface java.awt.Shape
x, y
 the specified coordinatesw
 the width of the specified rectangular coordinatesh
 the height of the specified rectangular coordinatestrue
if this Shape
and the interior of the specified set of rectangular coordinates intersect each other; false
otherwise.public boolean intersects(java.awt.geom.Rectangle2D r)
Shape
intersects the interior of a specified Rectangle2D
.intersects
in interface java.awt.Shape
r
 the specified Rectangle2D
true
if this Shape
and the interior of the specified Rectangle2D
intersect each other; false
otherwise.public java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at)
PathIterator
object that iterates along the boundary of this Shape
and provides access to the geometry of the outline of this Shape
. The iterator for this class is not multithreaded safe, which means that this GeneralPath
class does not guarantee that modifications to the geometry of this GeneralPath
object do not affect any iterations of that geometry that are already in process.getPathIterator
in interface java.awt.Shape
at
 an AffineTransform
PathIterator
that iterates along the boundary of this Shape
and provides access to the geometry of this Shape
's outlinepublic java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at, double flatness)
PathIterator
object that iterates along the boundary of the flattened Shape
and provides access to the geometry of the outline of the Shape
. The iterator for this class is not multithreaded safe, which means that this GeneralPath
class does not guarantee that modifications to the geometry of this GeneralPath
object do not affect any iterations of that geometry that are already in process.getPathIterator
in interface java.awt.Shape
at
 an AffineTransform
flatness
 the maximum distance that the line segments used to approximate the curved segments are allowed to deviate from any point on the original curvePathIterator
that iterates along the flattened Shape
boundary.public java.lang.Object clone()
clone
in class java.lang.Object
java.lang.OutOfMemoryError
 if there is not enough memory.Cloneable

Oracle® Spatial Java API Reference 11g Release 2 (11.2) E1182902 

PREV CLASS NEXT CLASS  FRAMES NO FRAMES  
SUMMARY: NESTED  FIELD  CONSTR  METHOD  DETAIL: FIELD  CONSTR  METHOD 