graph.vectorset.html

java 作图的程序

  <dd> Instantiate a DataSet with the parsed data.
The double array contains the data. 
The data is stored in the array in the sequence
<PRE>
            x,y,dx,dy,x,y,dx,dy,...
</PRE>
Where (x,y) is the position of the tail and (dx,dy) is the relative
position of the head.
This means that the length of the data
array is 4*n.
  <dl>
    <dt> <b>Parameters:</b>
    <dd> d - Array containing the (x,y,dy,dx) vectors.
    <dd> n - Number of (x,y) data pairs in the array.
    <dt> <b>Throws:</b> <a href="Exception
.html#_top_">Exception
</a>
    <dd> A Generic exception if it fails to load the
           parsed array into the class.
  </dl>
</dl>
<a name="VectorSet(double)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>VectorSet</b>
<pre>
  public VectorSet(double scale) throws <a href="java.lang.Exception.html#_top_">Exception</a>
</pre>
<dl>
  <dd> Instantiate an empty data set.
  <dl>
    <dt> <b>Parameters:</b>
    <dd> s - The scaling to use when plotting the vectors.
    <dt> <b>Throws:</b> <a href="Exception
.html#_top_">Exception
</a>
    <dd> A Generic exception if it fails to instantiate the
           the class with the correct stride.
  </dl>
</dl>
<a name="VectorSet(double[], int, double)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>VectorSet</b>
<pre>
  public VectorSet(double d[],
                   int n,
                   double scale) throws <a href="java.lang.Exception.html#_top_">Exception</a>
</pre>
<dl>
  <dd> Instantiate a DataSet with the parsed data.
  <dl>
    <dt> <b>Parameters:</b>
    <dd> d - Array containing the (x,y,dy,dx) vectors.
    <dd> n - Number of (x,y,dx,dy) vectors in the array.
    <dt> <b>Throws:</b> <a href="Exception
.html#_top_">Exception
</a>
    <dd> A Generic exception if it fails to load the
           parsed array into the class.
  </dl>
</dl>
<a name="methods"></a>
<h2>
  <img src="images/methods.gif" width=151 height=38 alt="Methods">
</h2>
<a name="setScale(double)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="setScale"><b>setScale</b></a>
<pre>
  public void setScale(double scale)
</pre>
<dl>
  <dd> Set the scaling to use when drawing vectors
  <dl>
    <dt> <b>Parameters:</b>
    <dd> scale - The scaling to employ
  </dl>
</dl>
<a name="setScalingType(int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="setScalingType"><b>setScalingType</b></a>
<pre>
  public void setScalingType(int type)
</pre>
<dl>
  <dd> Set the scaling type to use when drawing vectors
  <dl>
    <dt> <b>Parameters:</b>
    <dd> type - Either MEAN, MAXIMUM or MINIMUM.
  </dl>
</dl>
<a name="getScaleFactor()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="getScaleFactor"><b>getScaleFactor</b></a>
<pre>
  public double getScaleFactor()
</pre>
<dl>
  <dd> return the current scaling factor. That is the calculated scaling
 using the axis range the mean/max/min magnitude and the percentage
 scale.
</dl>
<a name="legend()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="legend"><b>legend</b></a>
<pre>
  public void legend()
</pre>
<dl>
  <dd> Draw a Vector legend in the graph window. The legend will be placed
above the data window in the center
</dl>
<a name="legend(java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="legend"><b>legend</b></a>
<pre>
  public void legend(<a href="java.lang.String.html#_top_">String</a> text)
</pre>
<dl>
  <dd> Define a Vector legend in the graph window. The legend will be placed
above the data window in the center
  <dl>
    <dt> <b>Parameters:</b>
    <dd> text - text to display in the legend
  </dl>
</dl>
<a name="legend(int, int, java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="legend"><b>legend</b></a>
<pre>
  public void legend(int x,
                     int y,
                     <a href="java.lang.String.html#_top_">String</a> text)
</pre>
<dl>
  <dd> Define a Vector legend in the graph window
  <dl>
    <dt> <b>Parameters:</b>
    <dd> x - pixel position of the legend.
    <dd> y - pixel position of the legend.
    <dd> text - text to display in the legend
    <dt> <b>Overrides:</b>
    <dd> <a href="graph.DataSet.html#legend(int, int, java.lang.String)">legend</a> in class <a href="graph.DataSet.html#_top_">DataSet</a>
  </dl>
</dl>
<a name="legend(double, double, java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="legend"><b>legend</b></a>
<pre>
  public void legend(double x,
                     double y,
                     <a href="java.lang.String.html#_top_">String</a> text)
</pre>
<dl>
  <dd> Define a Vector legend in the graph window
  <dl>
    <dt> <b>Parameters:</b>
    <dd> x - data position of the legend.
    <dd> y - data position of the legend.
    <dd> text - text to display in the legend
    <dt> <b>Overrides:</b>
    <dd> <a href="graph.DataSet.html#legend(double, double, java.lang.String)">legend</a> in class <a href="graph.DataSet.html#_top_">DataSet</a>
  </dl>
</dl>
<a name="draw_data(java.awt.Graphics, java.awt.Rectangle)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="draw_data"><b>draw_data</b></a>
<pre>
  public void draw_data(<a href="java.awt.Graphics.html#_top_">Graphics</a> g,
                        <a href="java.awt.Rectangle.html#_top_">Rectangle</a> bounds)
</pre>
<dl>
  <dd> Draw the vectors at the data points.
If this data has been attached to an Axis then scale the data
based on the axis maximum/minimum otherwise scale using
the data's maximum/minimum
  <dl>
    <dt> <b>Parameters:</b>
    <dd> g - Graphics state
    <dd> bounds - The data window to draw into
    <dt> <b>Overrides:</b>
    <dd> <a href="graph.DataSet.html#draw_data(java.awt.Graphics, java.awt.Rectangle)">draw_data</a> in class <a href="graph.DataSet.html#_top_">DataSet</a>
  </dl>
</dl>
<a name="draw_legend(java.awt.Graphics, java.awt.Rectangle)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="draw_legend"><b>draw_legend</b></a>
<pre>
  protected void draw_legend(<a href="java.awt.Graphics.html#_top_">Graphics</a> g,
                             <a href="java.awt.Rectangle.html#_top_">Rectangle</a> w)
</pre>
<dl>
  <dd> Draw a legend for this Vector set
  <dl>
    <dt> <b>Parameters:</b>
    <dd> g - Graphics context
    <dd> w - Data Window
    <dt> <b>Overrides:</b>
    <dd> <a href="graph.DataSet.html#draw_legend(java.awt.Graphics, java.awt.Rectangle)">draw_legend</a> in class <a href="graph.DataSet.html#_top_">DataSet</a>
  </dl>
</dl>
<a name="drawVectors(java.awt.Graphics, java.awt.Rectangle)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="drawVectors"><b>drawVectors</b></a>
<pre>
  protected void drawVectors(<a href="java.awt.Graphics.html#_top_">Graphics</a> g,
                             <a href="java.awt.Rectangle.html#_top_">Rectangle</a> w)
</pre>
<a name="range(int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="range"><b>range</b></a>
<pre>
  protected void range(int stride)
</pre>
<dl>
  <dd> Calculate the range of the data and the magnitude of the vectors.
This modifies dxmin,dxmax,dymin,dymax
and xmin,xmax,ymin,ymax
  <dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="graph.DataSet.html#range(int)">range</a> in class <a href="graph.DataSet.html#_top_">DataSet</a>
  </dl>
</dl>
<hr>
<pre>
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