ecologylab.generic
Class Line2D

java.lang.Object
  ecologylab.generic.Line2D

public class Line2D
extends java.lang.Object

A 2D line, as defined by parametric coefficients. The line, ultimately will be defined by 2 end points, that is, by 4 integers, when it is drawn. The parametric representation is of the form: x0 = a*x + b*width + c, y0 = a*y + b*height + c. Displacement1D holds these parametric forms. In our world a=1, always, so we assume that, and dont bother with the extra multiplication. (This could always be changed inside the encapsulated Displacement1D, without effecting the call sites.)

Constructor Summary

Line2D(int[] dx0)

Line2D(int[] dx0, int[] dy0, int[] dx1, int[] dy1)

Line2D(int dxb0, int dxc0, int dyb0, int dyc0, int dxb1, int dxc1, int dyb1, int dyc1)

Method Summary

void	draw(java.awt.Graphics g, int x, int y, int width, int height)

Methods inherited from class java.lang.Object

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

Constructor Detail

Line2D

public Line2D(int[] dx0,
              int[] dy0,
              int[] dx1,
              int[] dy1)

Line2D

public Line2D(int[] dx0)

Line2D

public Line2D(int dxb0,
              int dxc0,
              int dyb0,
              int dyc0,
              int dxb1,
              int dxc1,
              int dyb1,
              int dyc1)

Method Detail

draw

public void draw(java.awt.Graphics g,
                 int x,
                 int y,
                 int width,
                 int height)