Class ui.Graph 
All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class ui.Graph 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----ui.Graph
public class Graph
extends Canvas
A graph object which plots an expression given [xmin, xmax] range. It can also be used to display multi-line messages.

Variable Index

o DRAW_EXPRESSION
Mode of plotting expression.
o DRAW_MESSAGE
Mode of drawing multi-line messages.
o DRAW_NOTHING
Mode of drawing blank graph.
o expression
The expression to be plot.
o mode
Current mode of graph.
o msgString
The message to be displayed.
o xmax
Maximum x value of [xmin, xmax] range.
o xmin
Minumum x value of [xmin, xmax] range.

Constructor Index

o Graph()
Construct a empty graph.
o Graph(Expression, double, double)
Construct a graph with an expression and [xmin, xmax] range.

Method Index

o paint(Graphics)
Paint the graph.
o setExpression(Expression)
Set the expression to be plot.
o setMode(int)
Set plotting mode.
o setMsgString(String)
Set message string.
o setXRange(double, double)
Set the range of expression to be plot.

Variables

o DRAW_NOTHING 
  public final static int DRAW_NOTHING
Mode of drawing blank graph.
o DRAW_MESSAGE 
  public final static int DRAW_MESSAGE
Mode of drawing multi-line messages.
o DRAW_EXPRESSION 
  public final static int DRAW_EXPRESSION
Mode of plotting expression.
o xmin 
  public double xmin
Minumum x value of [xmin, xmax] range.
o xmax 
  public double xmax
Maximum x value of [xmin, xmax] range.
o expression 
  public Expression expression
The expression to be plot.
o msgString 
  public String msgString
The message to be displayed.
o mode 
  public int mode
Current mode of graph.

Constructors

o Graph 
  public Graph()
Construct a empty graph.
o Graph 
  public Graph(Expression expr,
               double xmin,
               double xmax)
Construct a graph with an expression and [xmin, xmax] range.

Methods

o setExpression 
  public void setExpression(Expression expr)
Set the expression to be plot.
o setXRange 
  public void setXRange(double xmin,
                        double xmax)
Set the range of expression to be plot.
o setMode 
  public void setMode(int m)
Set plotting mode.
o setMsgString 
  public void setMsgString(String s)
Set message string.
o paint 
  public synchronized void paint(Graphics g)
Paint the graph.
Overrides:
paint in class Canvas 
All Packages  Class Hierarchy  This Package  Previous  Next  Index