showarrayfactor.java

天线阵列的涉及软件

/*
 *	ShowArrayFactor
 *
 *	Button action to read current taper and performances
 *	Get array factor then call the drawer to show on the screen
 *
 *	Meirong He
 *	EEE Department
 *	University of Sheffield
 *	July 2005
 */

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

class ShowArrayFactor implements ActionListener {
		
	private Button button;
	private AntennaDesigner taper;
		
	public ShowArrayFactor (Button bb, AntennaDesigner tt) {	
		button=bb;
		taper=tt;
	}
	
	public void actionPerformed (ActionEvent e) {
		
		taper.screen.clear();
		
		int N=taper.N;
		Complex[] I=new Complex[N];
		double d=taper.lamda*Double.parseDouble(new String(taper.spacing.getText()));

		double module, ang;
		for (int i=0; i<N; i++) {
			module=Double.parseDouble(new String(taper.amp[i].getText()));
			ang=Double.parseDouble(new String(taper.phase[i].getText()))*Math.PI/180;
			I[i]=new Complex("polar", module, ang);
		}			
					//Read current taper and construct current array
				
		ArrayFactor arrayFactor=new ArrayFactor(I,d,taper.k0);
					//Constructor array factor calculation function
		
		String com=button.getLabel();
		if (com.equals("Power Pattern")) {
			taper.screen.drawArrayFactor(arrayFactor); 
		}
		if(com.equals("Geometrical Pattern"))	{		
			taper.screen.drawGeometry(arrayFactor);
		}			//Call drawer operation according to user command
	}
}