Source Code : Draw Radiation: Annotation layout mechanism, Visibility settings, Custom linestyle

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Draw Radiation: Annotation layout mechanism, Visibility settings, Custom linestyle

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

import no.geosoft.cc.geometry.Geometry;
import no.geosoft.cc.geometry.Matrix4x4;
import no.geosoft.cc.graphics.*;



/**
 * G demo program. Demonstrates:
 *
 * <ul>
 * <li>Annotation layout mechanism
 * <li>Visibility settings
 * <li>Custom linestyle
 * </ul>
 * 
 * @author <a href="mailto:jacob.dreyer@geosoft.no">Jacob Dreyer</a>
 */   
public class Demo3 extends JFrame
  implements ActionListener
{
  private JCheckBox  annotationToggle_;
  private JCheckBox  geometryToggle_;

  private GScene     scene_;
  
  

  /**
   * Class for creating the demo canvas and hande Swing events.
   */   
  public Demo3()
  {
    super ("G Graphics Library - Demo 3");
    setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
    
    // Create the GUI
    JPanel topLevel = new JPanel();
    topLevel.setLayout (new BorderLayout());
    getContentPane().add (topLevel);        

    JPanel buttonPanel = new JPanel();

    buttonPanel.add (new JLabel ("Visibility"));
    
    geometryToggle_ = new JCheckBox ("Geometry");
    geometryToggle_.setSelected (true);
    buttonPanel.add (geometryToggle_);
    geometryToggle_.addActionListener (this);
    
    annotationToggle_ = new JCheckBox ("Annotation");    
    annotationToggle_.setSelected (true);
    buttonPanel.add (annotationToggle_);
    annotationToggle_.addActionListener (this);
    
    topLevel.add (buttonPanel, BorderLayout.NORTH);

    // Create the graphic canvas
    GWindow window = new GWindow (new Color (245, 250, 236));
    topLevel.add (window.getCanvas(), BorderLayout.CENTER);    
    
    // Create scene with default viewport and world extent settings
    scene_ = new GScene (window, "Scene");

    // Create som graphic objects
    GObject testObject = new TestObject (20);
    scene_.add (testObject);

    pack();
    setSize (new Dimension (500, 500));
    setVisible (true);
  }


  
  /**
   * Handle button interactions.
   * 
   * @param event  Event causing call to this method.
   */
  public void actionPerformed (ActionEvent event)
  {
    Object source = event.getSource();

    boolean showGeometry   = geometryToggle_.isSelected();
    boolean showAnnotation = annotationToggle_.isSelected();

    if (showGeometry)   scene_.setVisibility (GObject.DATA_VISIBLE);
    else                scene_.setVisibility (GObject.DATA_INVISIBLE);
    
    if (showAnnotation) scene_.setVisibility (GObject.ANNOTATION_VISIBLE);
    else                scene_.setVisibility (GObject.ANNOTATION_INVISIBLE);

    scene_.refresh();
  }


  
  /**
   * Defines the geometry and presentation for the sample
   * graphic object.
   */   
  private class TestObject extends GObject
  {
    private GSegment[]  lines_;

    
    TestObject (int nLines)
    {
      lines_ = new GSegment[nLines];

      GStyle textStyle = new GStyle();
      textStyle.setForegroundColor (new Color (0, 0, 0));
      textStyle.setFont (new Font ("Dialog", Font.BOLD, 14));      
      
      for (int i = 0; i < nLines; i++) {
        lines_[i] = new GSegment();
        GStyle lineStyle = new GStyle();
        lineStyle.setForegroundColor (new Color ((float) i / nLines, 0.7f, 0.7f));
        lineStyle.setLineWidth (3);
        lineStyle.setAntialiased (true);
        lineStyle.setLineStyle (new float[] {10.0f, 5.0f, 2.0f, 5.0f});
        lines_[i].setStyle (lineStyle);
        addSegment (lines_[i]);
        
        GText text = new GText ("Line " + (i+1), GPosition.BOTTOM | GPosition.CENTER);
        text.setStyle (textStyle);
        lines_[i].setText (text);
      }
    }

    
    public void draw()
    {
      // Center of viewport
      int x0     = (int) Math.round (getScene().getViewport().getCenterX());
      int y0     = (int) Math.round (getScene().getViewport().getCenterY());

      int width  = (int) Math.round (getScene().getViewport().getWidth());
      int height = (int) Math.round (getScene().getViewport().getHeight());

      int nLines = lines_.length;
      for (int i = 0; i < nLines; i++) {
        int x1 = x0;
        int y1 = 0;
        int x2 = (int) Math.round ((double) width / nLines * i);
        int y2 = height;

        lines_[i].setGeometry (x1, y1, x2, y2);
      }
    }
  }
  


  public static void main (String[] args)
  {
    new Demo3();
  }
}

           
       

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