Hi.
Sorry here is the code I mentioned :-)
Corne Kloppers
//Wed Feb 28 13:42:05 SAST 2001
import visad.*;
import visad.java2d.DisplayImplJ2D;
import java.rmi.RemoteException;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class UserMeshDisplay{
private TextType text;
private TupleType text_tuple;
private FlatField nodeFlatField;
private RealTupleType time_type;
private FunctionType text_function;
private RealTupleType domain_tuple;
private RealType pixel;
private RealType index;
private FunctionType func_dom_node_pix;
private Irregular2DSet nodeSet;
private Gridded2DSet nodeOutlineSet;
private int nodeCornersLength = 0;
private Integer1DSet indexSet;
private FunctionType index_flatfield;
private FieldImpl fieldImpl;
private Set time_set;
private FieldImpl text_field;
private Tuple tt;
private DisplayImplJ2D display;
private GraphicsModeControl dispGMC;
private ScalarMap colMap;
private ScalarMap rowMap;
private ScalarMap pixMap;
private ScalarMap text_map;
private TextControl tcontrol;
private DataReferenceImpl dataReference;
private DataReferenceImpl ref_text_field1;
private JFrame jframe;
public UserMeshDisplay(String args[]) throws RemoteException,
VisADException {
// constructs for the labels
text = new TextType("text");
RealType[] time = {RealType.Time};
time_type = new RealTupleType(time);
MathType[] mtypes = {RealType.YAxis, RealType.XAxis, text};
text_tuple = new TupleType(mtypes);
text_function = new FunctionType(RealType.Time, text_tuple);
domain_tuple = new RealTupleType(RealType.XAxis, RealType.YAxis);
pixel = new RealType("pixel");
index = new RealType("index");
func_dom_node_pix = new FunctionType( domain_tuple, pixel);
float[][] nodeFlatSamplesArray = {{2f,2f,2f,2f,2f,2f,2f}};
float[][] nodeOutlineFlatSamplesArray = {{8f,8f,8f,8f,8f,8f,8f}};
indexSet = new Integer1DSet(index, 2);
index_flatfield = new FunctionType( index, func_dom_node_pix);
fieldImpl = new FieldImpl(index_flatfield, indexSet);
// Labels time_set
//time_set = new Linear1DSet(time_type, 0.0, (double) (1 - 1.0), 1);
time_set = new Linear1DSet(time_type, 0.0, 0.0, 1);
text_field = new FieldImpl(text_function, time_set);
float[][] aNode = {{15f,18f,20f,19f,18f,17f,15f},
{8f,10f,8f,5f,1f,5f,8f}};
nodeSet = new Irregular2DSet(domain_tuple, aNode);
//Create a Gridded2DSet for the outline
nodeOutlineSet = new Gridded2DSet(domain_tuple, aNode, 7);
//Create a FlatField from the irregular set for the colour within.
nodeFlatField = new FlatField(func_dom_node_pix, nodeSet);
nodeFlatField.setSamples(nodeFlatSamplesArray);
fieldImpl.setSample(0, nodeFlatField);
//Create and add the outline
nodeFlatField = new FlatField(func_dom_node_pix, nodeOutlineSet);
nodeFlatField.setSamples(nodeOutlineFlatSamplesArray);
fieldImpl.setSample(1, nodeFlatField);
// Put in the Label: call function
tt = put_lable(aNode, 6, "test");
text_field.setSample(0, tt);
display = new DisplayImplJ2D("display1");
// Get display's graphics mode control and draw scales
dispGMC = (GraphicsModeControl) display.getGraphicsModeControl();
dispGMC.setScaleEnable(true);
// Create the ScalarMaps: column to XAxis, row to YAxis and pixel to RGB
colMap = new ScalarMap( RealType.XAxis, Display.XAxis );
rowMap = new ScalarMap( RealType.YAxis, Display.YAxis );
pixMap = new ScalarMap( pixel, Display.RGB );
text_map = new ScalarMap(text, Display.Text);
// Add maps to display
display.addMap( colMap );
display.addMap( rowMap );
display.addMap( pixMap );
display.addMap(text_map);
//Fonts
tcontrol = (TextControl) text_map.getControl();
tcontrol.setCenter(true);
tcontrol.setSize(0.6);
//Font font = new Font("Dialog", Font.BOLD, 16);
//tcontrol.setFont(font);
dataReference = new DataReferenceImpl("data_ref");
dataReference.setData(fieldImpl.getSample(0));
display.addReference(dataReference);
dataReference = new DataReferenceImpl("data_ref");
dataReference.setData(fieldImpl.getSample(1));
display.addReference(dataReference);
ref_text_field1 = new DataReferenceImpl("ref_text_field");
ref_text_field1.setData(text_field.getSample(0));
display.addReference( ref_text_field1 );
// Create application window and add display to window
jframe = new JFrame("VSOP AjayGridColorJobbie");
jframe.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);} });
jframe.getContentPane().add(display.getComponent());
// Set window size and make it visible
jframe.setSize(300, 300);
jframe.setVisible(true);
}
/**
* Calculate the centriode off the points region,
* put the name string in the middle.
*/
public Tuple put_lable(float[][] points, int size, String name)
throws RemoteException, VisADException
{
float x_sum = 0;
float y_sum = 0;
for (int i=0; i < size-1; i++)
{
x_sum += points[0][i];
y_sum += points[1][i];
}
float x_val = x_sum / (size-1);
float y_val = y_sum / (size-1);
//Debug code
System.out.print("y_val = "+y_val+"\t");
System.out.println("x_val = "+x_val);
// create Data
Data[] td = {
new Real(RealType.YAxis, y_val),
new Real(RealType.XAxis, x_val),
new Text(text, name)
};
//set sample to the text_field
Tuple tt = new Tuple(text_tuple, td);
return tt;
}
public static void main(String[] args)
throws RemoteException, VisADException
{
new UserMeshDisplay(args);
}
}
