net.sf.oriented.pseudoline

Class PseudoLineDrawing

java.lang.Object

net.sf.oriented.pseudoline.PseudoLineDrawing

All Implemented Interfaces:

Verify

public class PseudoLineDrawing
extends Object
implements Verify

This class is for generating images of pseudolines as Euclidean pictures of the projective plane. Each image shows one of the lines, the line at infinity as an oval or circle. The other lines meet the line at infinity at either edge of the image: conceptually the two opposite points in the Euclidean picture are a single projective point. Pairs of lines that meet at the line at infinity are parallel. This concept of Euclidean parallelness should not be confused with the oriented matroid concept of parallel (or anti-parallel) elements. The specific options for the image are controlled by the ImageOptions class,

Author:

jeremycarroll

Method Summary

Methods

Modifier and Type	Method and Description
RenderedImage	image() Returns an image of the oriented matroid with default options.
RenderedImage	image(ImageOptions opt) Returns an image of the oriented matroid with the specified options.
String	toString()
void	verify() Check invariants of the object.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

toString

public String toString()

Overrides:

toString in class Object

verify

public void verify()
            throws AxiomViolation

Description copied from interface: Verify

Check invariants of the object. Calling code should not assume that this operation is quick.

Specified by:

verify in interface Verify

Throws:

AxiomViolation - If an invariant did not hold.

image

public RenderedImage image()

Returns an image of the oriented matroid with default options.

Returns:

An image of the oriented matroid.

See Also:

image(ImageOptions), ImageOptions.defaultColor()

image

public RenderedImage image(ImageOptions opt)

Returns an image of the oriented matroid with the specified options.

Parameters:

opt - The options controlling the image generation

Returns:

An image of the oriented matroid.