multigraph
Class PlotPoint

java.lang.Object
  multigraph.PlotPoint

Direct Known Subclasses:

DatePoint

public class PlotPoint

extends java.lang.Object

The PlotPoint object is used to specify a location for drawing on a Plotter canvas relative to a PlotFrame; see PlotFrame for a more thorough discussion of this.

Note: once created, a PlotPoint simply represents a point in a drawing canvas; its coordinates are stored internally as device pixel coordinates. The PlotFrame used to create the PlotPoint is not retained.

Version:

$Id: PlotPoint.java,v 1.1.1.1 2004/11/30 22:30:41 mphillips Exp $

Author:

Mark Phillips

See Also:

PlotFrame, Plotter

Constructor Summary

PlotPoint(double x, double y)
Create a PlotPoint having given device pixel coordinates.

PlotPoint(PlotFrame f, double x, double y)
Create a PlotPoint having coordinates (x,y) in PlotFrame f.

PlotPoint(PlotFrame xf, double x, PlotFrame yf, double y)
Create a PlotPoint whose x coordinate is specified relative to one frame (xf), and whose y coordinate is specified relative to a different frame (yf).

Method Summary

PlotPoint	add(double dx, double dy) Return a new PlotPoint whose location is obtained by adding (dx,dy) to the device pixel coordinates of this PlotPoint.
java.lang.String	toString() Return a string representation of this PlotPoint.
int	xPixel() Return the device pixel x coordinate of this point
int	yPixel() Return the device pixel y coordinate of this point

Methods inherited from class java.lang.Object

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

Constructor Detail

PlotPoint

public PlotPoint(double x,
                 double y)

Create a PlotPoint having given device pixel coordinates.

PlotPoint

public PlotPoint(PlotFrame f,
                 double x,
                 double y)

Create a PlotPoint having coordinates (x,y) in PlotFrame f.

PlotPoint

public PlotPoint(PlotFrame xf,
                 double x,
                 PlotFrame yf,
                 double y)

Create a PlotPoint whose x coordinate is specified relative to one frame (xf), and whose y coordinate is specified relative to a different frame (yf).

Method Detail

xPixel

public int xPixel()

Return the device pixel x coordinate of this point

yPixel

public int yPixel()

Return the device pixel y coordinate of this point

add

public PlotPoint add(double dx,
                     double dy)

Return a new PlotPoint whose location is obtained by adding (dx,dy) to the device pixel coordinates of this PlotPoint.

toString

public java.lang.String toString()

Return a string representation of this PlotPoint.