Polygon (Slick - The 2D Library)

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org.newdawn.slick.geom
Class Polygon

java.lang.Object
  org.newdawn.slick.geom.Shape
      org.newdawn.slick.geom.Polygon

All Implemented Interfaces:: java.io.Serializable

public class Polygon
extends Shape
extends Shape

A polygon implementation meeting the Shape contract.

Author:: Mark
See Also:: Serialized Form

Field Summary

Fields inherited from class org.newdawn.slick.geom.Shape
`boundingCircleRadius, center, maxX, maxY, minX, minY, points, pointsDirty, trianglesDirty, tris, x, y`

Constructor Summary
`Polygon()` Create an empty polygon
`Polygon(float[] points)` Construct a new polygon with 3 or more points.

Method Summary
`void`	`addPoint(float x, float y)` Add a point to the polygon
`boolean`	`closed()` True if this is a closed shape
`Polygon`	`copy()` Provide a copy of this polygon
`protected void`	`createPoints()` Subclasses implement this to create the points of the shape.
`void`	`setAllowDuplicatePoints(boolean allowDups)` Indicate if duplicate points are allow
`void`	`setClosed(boolean closed)` Indicate if the polygon should be closed
`void`	`setX(float x)` Set the x position of the left side this shape.
`void`	`setY(float y)` Set the y position of the top of this shape.
`Shape`	`transform(Transform transform)` Apply a transformation and return a new shape.

Methods inherited from class org.newdawn.slick.geom.Shape
`calculateRadius, calculateTriangles, checkPoints, contains, contains, findCenter, getBoundingCircleRadius, getCenter, getCenterX, getCenterY, getHeight, getMaxX, getMaxY, getMinX, getMinY, getNormal, getPoint, getPointCount, getPoints, getTriangles, getWidth, getX, getY, hasVertex, includes, increaseTriangulation, indexOf, intersects, preCache, prune, setCenterX, setCenterY, setLocation, setLocation, subtract, union`

Methods inherited from class org.newdawn.slick.geom.Shape

calculateRadius, calculateTriangles, checkPoints, contains, contains, findCenter, getBoundingCircleRadius, getCenter, getCenterX, getCenterY, getHeight, getMaxX, getMaxY, getMinX, getMinY, getNormal, getPoint, getPointCount, getPoints, getTriangles, getWidth, getX, getY, hasVertex, includes, increaseTriangulation, indexOf, intersects, preCache, prune, setCenterX, setCenterY, setLocation, setLocation, subtract, union

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

Polygon

public Polygon(float[] points)

Construct a new polygon with 3 or more points. This constructor will take the first set of points and copy them after the last set of points to create a closed shape.

Parameters:: points - An array of points in x, y order.

Polygon

public Polygon()

Create an empty polygon

Method Detail

setAllowDuplicatePoints

public void setAllowDuplicatePoints(boolean allowDups)

Indicate if duplicate points are allow

Parameters:: allowDups - True if duplicate points are allowed

addPoint

public void addPoint(float x,
                     float y)

Add a point to the polygon

Parameters:: x - The x coordinate of the point; y - The y coordinate of the point

transform

public Shape transform(Transform transform)

Apply a transformation and return a new shape. This will not alter the current shape but will return the transformed shape.

Specified by:: transform in class Shape

Parameters:: transform - The transform to be applied
Returns:: The transformed shape.

setX

public void setX(float x)

Description copied from class: Shape

Set the x position of the left side this shape.

Overrides:: setX in class Shape

Parameters:: x - The new x position of the left side this shape.
See Also:: Shape.setX(float)

setY

public void setY(float y)

Description copied from class: Shape

Set the y position of the top of this shape.

Overrides:: setY in class Shape

Parameters:: y - The new y position of the top of this shape.
See Also:: Shape.setY(float)

createPoints

protected void createPoints()

Description copied from class: Shape

Subclasses implement this to create the points of the shape.

Specified by:: createPoints in class Shape

See Also:: Shape.createPoints()

closed

public boolean closed()

Description copied from class: Shape

True if this is a closed shape

Overrides:: closed in class Shape

Returns:: True if this is a closed shape
See Also:: Shape.closed()

setClosed

public void setClosed(boolean closed)

Indicate if the polygon should be closed

Parameters:: closed - True if the polygon should be closed

copy

public Polygon copy()

Provide a copy of this polygon

Returns:: A copy of this polygon

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org.newdawn.slick.geom Class Polygon

Polygon

Polygon

setAllowDuplicatePoints

addPoint

transform

setX

setY

createPoints

closed

setClosed

copy

org.newdawn.slick.geom
Class Polygon