Package ucar.nc2.dt.ugrid.geom

Class Polygon2D.Double

java.lang.Object

ucar.nc2.dt.ugrid.geom.Polygon2D

ucar.nc2.dt.ugrid.geom.Polygon2D.Double

All Implemented Interfaces:

Shape, Serializable

Enclosing class:

Polygon2D

public static class Polygon2D.Double
extends Polygon2D

The concrete Polygon class that stores coordinates internally as doubles.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class ucar.nc2.dt.ugrid.geom.Polygon2D

Polygon2D.Double, Polygon2D.Float

Field Summary

Fields inherited from class ucar.nc2.dt.ugrid.geom.Polygon2D

_closed, _coordCount

Constructor Summary

Constructors

Constructor	Description
Double()	Create a new polygon with no coordinates
Double(double[] coords)	Create a new polygon with the given vertices, in the format [x0, y0, x1, y1, ...
Double(double[] xlocs, double[] ylocs)	Create a new polygon with the provided x and y locations.
Double(double x, double y)	Create a new polygon with a single start point
Double(int size)	Create a new polygon with space for the given number of vertices.
Double(Point2D p)

Method Summary

Modifier and Type	Method	Description
Polygon2D.Double	copy()	Creates a copy of this polygon with the same coordinates.
Rectangle2D	getBounds2D()	Get the floating-point bounds of the polygon.
GeoRectangle.Double	getBoundsGeo()	Get the bound box of this poly as a GeoRectangle2D
Point2D	getCentroid()	Calculates the center point of this Polygon2D
List<Point2D>	getVertices()	Gets a list of Point2D vertices of this polygon.
double	getX(int index)	Get the given X-coordinate
double[]	getXCoords()	Gets a double array containing the X coordinates of the polygon.
double	getY(int index)	Get the given Y-coordinate
double[]	getYCoords()	Gets a double array containing the Y coordinates of the polygon.
void	lineTo(double x, double y)	Add a new vertex to the end of the line.
void	moveTo(double x, double y)	Move the start point of the vertex to the given position.
void	setX(int index, double x)	Set the given X-coordinate.
void	setY(int index, double y)	Set the given Y-coordinate
void	transform(AffineTransform at)	Transform the polygon with the given transform.
void	translate(double x, double y)	Translate the polygon the given distance.

Methods inherited from class ucar.nc2.dt.ugrid.geom.Polygon2D

area, closePath, contains, contains, contains, contains, contains, contains, distance, distanceSq, getArea, getBounds, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, getPathIterator, getVertexCount, intersects, intersects, intersects, intersects, intersects, intersects, lineIntersectsPoint, linesIntersect, lineTo, moveTo, reset, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Double

public Double()

Create a new polygon with no coordinates

Double

public Double(int size)

Create a new polygon with space for the given number of vertices.

Double

public Double(double[] coords)

Create a new polygon with the given vertices, in the format [x0, y0, x1, y1, ... ].

Double

public Double(Point2D p)

Double

public Double(double x,
              double y)

Create a new polygon with a single start point

Double

public Double(double[] xlocs,
              double[] ylocs)

Create a new polygon with the provided x and y locations. If the two arrays are of unequal length, an empty polygon is created. NaN values are ignored

Parameters:

xlocs - the array of x locations.

ylocs - the array of y locations.

Method Detail

copy

public Polygon2D.Double copy()

Creates a copy of this polygon with the same coordinates. The original polygon remains unchanged.

Specified by:

copy in class Polygon2D

Returns:

a copy of the this polygon

getBounds2D

public Rectangle2D getBounds2D()

Get the floating-point bounds of the polygon.

Specified by:

getBounds2D in interface Shape

Specified by:

getBounds2D in class Polygon2D

getBoundsGeo

public GeoRectangle.Double getBoundsGeo()

Description copied from class: Polygon2D

Get the bound box of this poly as a GeoRectangle2D

Specified by:

getBoundsGeo in class Polygon2D

getCentroid

public Point2D getCentroid()

Description copied from class: Polygon2D

Calculates the center point of this Polygon2D

Specified by:

getCentroid in class Polygon2D

Returns:

the center point of this Polygon2D

getVertices

public List<Point2D> getVertices()

Description copied from class: Polygon2D

Gets a list of Point2D vertices of this polygon.

Specified by:

getVertices in class Polygon2D

Returns:

a List{Point2D} of vertices

getXCoords

public double[] getXCoords()

Description copied from class: Polygon2D

Gets a double array containing the X coordinates of the polygon.

Specified by:

getXCoords in class Polygon2D

Returns:

the X coordinates

getYCoords

public double[] getYCoords()

Description copied from class: Polygon2D

Gets a double array containing the Y coordinates of the polygon.

Specified by:

getYCoords in class Polygon2D

Returns:

the Y coordinates

getX

public double getX(int index)

Get the given X-coordinate

Specified by:

getX in class Polygon2D

Throws:

IndexOutOfBoundsException - The index is out of bounds.

getY

public double getY(int index)

Get the given Y-coordinate

Specified by:

getY in class Polygon2D

Throws:

IndexOutOfBoundsException - The index is out of bounds.

lineTo

public void lineTo(double x,
                   double y)

Add a new vertex to the end of the line.

Specified by:

lineTo in class Polygon2D

moveTo

public void moveTo(double x,
                   double y)

Move the start point of the vertex to the given position.

Specified by:

moveTo in class Polygon2D

Throws:

UnsupportedOperationException - The polygon already has vertices

setX

public void setX(int index,
                 double x)

Set the given X-coordinate.

Specified by:

setX in class Polygon2D

Throws:

IndexOutOfBoundsException - The index is out of bounds.

setY

public void setY(int index,
                 double y)

Set the given Y-coordinate

Specified by:

setY in class Polygon2D

Throws:

IndexOutOfBoundsException - The index is out of bounds.

transform

public void transform(AffineTransform at)

Transform the polygon with the given transform.

Specified by:

transform in class Polygon2D

translate

public void translate(double x,
                      double y)

Translate the polygon the given distance.

Specified by:

translate in class Polygon2D