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Class crw.data3.DataWrapper 

java.lang.Object
   |
   +----crw.data3.DataWrapper
public class DataWrapper
extends Object
A Data wrapper class, is the holding place for all physical data and prepares them for plot. A DataWrapper object is associated with one PlotCanvas object. This object uses a Conversion object which is created based on the data range, xRange and yRange, and the size of the PlotCanvas. One DataWrapper object can hold many physical Data objects in a Vector. This class is responsible for plotting all data in the PlotCanvas drawing area. This class is not usually used in an application, but used by the system (in PlotCanvas). A DataWrapper object is obtained by calling PlotCanvas.getData() method.

Version:
1.0 10/2/1998
Author:
C.R.Wie

Method Index

o add(Data)
Adds a data object into this wrapper class.
o drawCurrent(Graphics, Color)
Draws a curve corresponding to the current parameter value using the Color provided.
o drawFull(Graphics)
Draws all data curves for all parameter values in the background image object.
o drawSpot(Graphics, Color)
Draws the current spot with the given color.
o getLogOrigin()
Returns the value at the axis origin if log scale plot is employed.
o getOrigin()
o getRangeX()
o getRangeY()
o isEmpty()
o remove(Data)
Removes a Data object.
o removeAll()
Removes all data object stored in the vector.
o setCurrentP(double)
Sets the current parameter value.
o setCurrentX(double)
Sets the current x-value.
o setRange()
Finds the range of all physical data based on the function of array data.
o showCurrentSpot(boolean)
Whether to show the current spot or not.

Methods

o removeAll 
  public void removeAll()
Removes all data object stored in the vector.

o remove 
  public boolean remove(Data d)
Removes a Data object.

Parameters:
d - the Data object to remove from this.
o add 
  public void add(Data d)
Adds a data object into this wrapper class.

Parameters:
d - the Data object to plot.
o setRange 
  public void setRange()
Finds the range of all physical data based on the function of array data. When the function parameters change, i.e. when the data changes, this method should be called in the application code.

o drawFull 
  public void drawFull(Graphics g)
Draws all data curves for all parameter values in the background image object.

Parameters:
g - the Graphics context.
o drawCurrent 
  public void drawCurrent(Graphics g,
                          Color c)
Draws a curve corresponding to the current parameter value using the Color provided.

Parameters:
g - the Graphics context.
c - the Color of the curve.
o showCurrentSpot 
  public void showCurrentSpot(boolean show)
Whether to show the current spot or not.

Parameters:
show - true if wish to show
o drawSpot 
  public void drawSpot(Graphics g,
                       Color c)
Draws the current spot with the given color.

Parameters:
g - the Graphics context
c - the Color of the current spot.
o setCurrentP 
  public void setCurrentP(double p)
Sets the current parameter value.

Parameters:
p - the new parameter value.
o setCurrentX 
  public void setCurrentX(double x)
Sets the current x-value.

Parameters:
x - the x-value.
o isEmpty 
  public boolean isEmpty()
Returns:
true if there is no data to plot.
o getRangeX 
  public FloatRange getRangeX()
Returns:
the total range of x-values.
o getRangeY 
  public FloatRange getRangeY()
Returns:
the total range of y-values.
o getOrigin 
  public FloatPoint getOrigin()
Returns:
x and y-values at the origin.
o getLogOrigin 
  public Point getLogOrigin()
Returns the value at the axis origin if log scale plot is employed. Used by Axis.

Returns:
the log value at origin. 
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