Re: Gridded2DSet, Irregular2DSet ?

• To: visad-list@xxxxxxxxxxxxx
• Subject: Re: Gridded2DSet, Irregular2DSet ?
• From: VSOP User <vsop@xxxxxxxxxxxx>
• Date: Thu, 1 Mar 2001 14:49:24 +0200 (SAST)

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);
  }

}

• References:
  • Gridded2DSet, Irregular2DSet ?
    • From: VSOP User