org.apache.batik.ext.awt.geom
public class Polyline2D extends Object implements Shape, Cloneable, Serializable
Field Summary | |
---|---|
protected Rectangle2D | bounds
Bounds of the Polyline2D. |
int | npoints
The total number of points. |
float[] | xpoints
The array of x coordinates. |
float[] | ypoints
The array of x coordinates. |
Constructor Summary | |
---|---|
Polyline2D()
Creates an empty Polyline2D. | |
Polyline2D(float[] xpoints, float[] ypoints, int npoints)
Constructs and initializes a Polyline2D from the specified
parameters. | |
Polyline2D(int[] xpoints, int[] ypoints, int npoints)
Constructs and initializes a Polyline2D from the specified
parameters. | |
Polyline2D(Line2D line) |
Method Summary | |
---|---|
void | addPoint(Point2D p) |
void | addPoint(float x, float y)
Appends the specified coordinates to this Polyline2D .
|
Object | clone() |
boolean | contains(Point p)
Determines whether the specified Point is inside this
Polyline2D .
|
boolean | contains(double x, double y)
Determines if the specified coordinates are inside this
Polyline2D .
|
boolean | contains(int x, int y)
Determines whether the specified coordinates are inside this
Polyline2D .
|
boolean | contains(Point2D p)
Tests if a specified Point2D is inside the boundary of this
Polyline2D .
|
boolean | contains(double x, double y, double w, double h)
Tests if the interior of this Polyline2D entirely
contains the specified set of rectangular coordinates.
|
boolean | contains(Rectangle2D r)
Tests if the interior of this Polyline2D entirely
contains the specified Rectangle2D .
|
Rectangle | getBounds()
Gets the bounding box of this Polyline2D .
|
Rectangle2D | getBounds2D()
Returns the high precision bounding box of the Shape. |
PathIterator | getPathIterator(AffineTransform at)
Returns an iterator object that iterates along the boundary of this
Polygon and provides access to the geometry
of the outline of this Polygon . |
PathIterator | getPathIterator(AffineTransform at, double flatness)
Returns an iterator object that iterates along the boundary of
the Shape and provides access to the geometry of the
outline of the Shape . |
Polygon2D | getPolygon2D() |
boolean | intersects(double x, double y, double w, double h)
Tests if the interior of this Polygon intersects the
interior of a specified set of rectangular coordinates. |
boolean | intersects(Rectangle2D r)
Tests if the interior of this Polygon intersects the
interior of a specified Rectangle2D . |
void | reset()
Resets this Polyline2D object to an empty polygon.
|
See Also: getBounds
npoints
represents the number of points in this Polyline2D
.
npoints
is equal to the
number of points in this Polyline2D
.
npoints
is equal to the
number of points in this Polyline2D
.
Polyline2D
from the specified
parameters.Parameters: xpoints an array of x coordinates ypoints an array of y coordinates npoints the total number of points in the
Polyline2D
Throws: NegativeArraySizeException if the value of
npoints
is negative. IndexOutOfBoundsException if npoints
is
greater than the length of xpoints
or the length of ypoints
. NullPointerException if xpoints
or
ypoints
is null
.
Polyline2D
from the specified
parameters.Parameters: xpoints an array of x coordinates ypoints an array of y coordinates npoints the total number of points in the Polyline2D
Throws: NegativeArraySizeException if the value of
npoints
is negative. IndexOutOfBoundsException if npoints
is
greater than the length of xpoints
or the length of ypoints
. NullPointerException if xpoints
or
ypoints
is null
.
Polyline2D
.
If an operation that calculates the bounding box of this
Polyline2D
has already been performed, such as
getBounds
or contains
, then this
method updates the bounding box.
Parameters: x the specified x coordinate y the specified y coordinate
See Also: java.awt.Polygon#getBounds java.awt.Polygon#contains(double,double)
Polyline2D
.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
entirely
contains the specified set of rectangular coordinates.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
entirely
contains the specified Rectangle2D
.
This method is required to implement the Shape interface,
but in the case of Line2D objects it always returns false since a line contains no area.Polyline2D
.
The bounding box is the smallest Rectangle whose
sides are parallel to the x and y axes of the
coordinate space, and can completely contain the Polyline2D
.Returns: a Rectangle
that defines the bounds of this
Polyline2D
.
Returns: a Rectangle2D that precisely
bounds the Shape
.
Polygon
and provides access to the geometry
of the outline of this Polygon
. An optional
AffineTransform can be specified so that the coordinates
returned in the iteration are transformed accordingly.Parameters: at an optional AffineTransform
to be applied to the
coordinates as they are returned in the iteration, or
null
if untransformed coordinates are desired
Returns: a PathIterator object that provides access to the
geometry of this Polygon
.
Shape
and provides access to the geometry of the
outline of the Shape
. Only SEG_MOVETO and SEG_LINETO, point types
are returned by the iterator.
Since polylines are already flat, the flatness
parameter
is ignored.Parameters: at an optional AffineTransform
to be applied to the
coordinates as they are returned in the iteration, or
null
if untransformed coordinates are desired flatness the maximum amount that the control points
for a given curve can vary from colinear before a subdivided
curve is replaced by a straight line connecting the
endpoints. Since polygons are already flat the
flatness
parameter is ignored.
Returns: a PathIterator
object that provides access to the
Shape
object's geometry.
Polygon
intersects the
interior of a specified set of rectangular coordinates.Parameters: x the x coordinate of the specified rectangular shape's top-left corner y the y coordinate of the specified rectangular shape's top-left corner w the width of the specified rectangular shape h the height of the specified rectangular shape
Returns: true
if the interior of this
Polygon
and the interior of the
specified set of rectangular
coordinates intersect each other;
false
otherwise.
Polygon
intersects the
interior of a specified Rectangle2D
.Parameters: r a specified Rectangle2D
Returns: true
if this Polygon
and the
interior of the specified Rectangle2D
intersect each other; false
otherwise.
Polyline2D
object to an empty polygon.
The coordinate arrays and the data in them are left untouched
but the number of points is reset to zero to mark the old
vertex data as invalid and to start accumulating new vertex
data at the beginning.
All internally-cached data relating to the old vertices
are discarded.
Note that since the coordinate arrays from before the reset
are reused, creating a new empty Polyline2D
might
be more memory efficient than resetting the current one if
the number of vertices in the new polyline data is significantly
smaller than the number of vertices in the data from before the
reset.