import java.awt.*; public class RadarCanvas extends Canvas{ private Image im; private Graphics buf; Rectangle r; DipoleAnt ant; boolean is_theta_plane; public int thick_plot = 2; RadarCanvas(DipoleAnt ant, boolean is_theta_plane){ super(); this.ant=ant; this.is_theta_plane=is_theta_plane; } public void drawCanvas(Graphics g){ int i; float theta, theta2; r = getBounds(); g.setColor(Color.lightGray); g.fill3DRect(0,0,r.width-1,r.height-1,true); Graphics2D g2d = (Graphics2D)g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); // DRAW THE CHART LINES =========================================== g.setColor(Color.white); //draw concentric circles g.drawOval((int)(r.width*0.4),(int)(r.width*0.4),(int)(r.width*0.20),(int)(r.width*0.20)); g.drawOval((int)(r.width*0.3),(int)(r.width*0.3),(int)(r.width*0.40),(int)(r.width*0.40)); g.drawOval((int)(r.width*0.2),(int)(r.width*0.2),(int)(r.width*0.60),(int)(r.width*0.60)); g.drawOval((int)(r.width*0.1),(int)(r.width*0.1),(int)(r.width*0.80),(int)(r.width*0.80)); //draw radial lines g.drawLine((int)(r.width*0.1),(int)(r.width*0.5),(int)(r.width*0.9),(int)(r.width*0.5)); g.drawLine((int)(r.width*0.5),(int)(r.width*0.1),(int)(r.width*0.5),(int)(r.width*0.9)); g.drawLine( (int)(r.width*(0.5+0.4*(0.866))), (int)(r.width*(0.5+0.4*(0.5))), (int)(r.width*(0.5-0.4*(0.866))), (int)(r.width*(0.5-0.4*(0.5)))); g.drawLine( (int)(r.width*(0.5-0.4*(0.866))), (int)(r.width*(0.5+0.4*(0.5))), (int)(r.width*(0.5+0.4*(0.866))), (int)(r.width*(0.5-0.4*(0.5)))); g.drawLine( (int)(r.width*(0.5+0.4*(0.5))), (int)(r.width*(0.5+0.4*(0.866))), (int)(r.width*(0.5-0.4*(0.5))), (int)(r.width*(0.5-0.4*(0.866)))); g.drawLine( (int)(r.width*(0.5-0.4*(0.5))), (int)(r.width*(0.5+0.4*(0.866))), (int)(r.width*(0.5+0.4*(0.5))), (int)(r.width*(0.5-0.4*(0.866)))); //================================================================== //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); g.setColor(Color.black); //write the angles if(this.is_theta_plane==true) { //g.setColor(Color.red); //g.setFont(new Font("Symbol",Font.PLAIN,ant.font18)); //g.drawString("\u03b8",ant.s20,ant.s20); g.setColor(Color.black); g.setFont(new Font("SanSerif",Font.PLAIN,ant.font11)); g.drawString("0\u00ba",(int)(r.width*(0.5-0.4*(0.029))),(int)(r.width*(0.5+0.42*(-1.00)))); g.drawString("30\u00ba",(int)(r.width*(0.5+0.41*(0.500))),(int)(r.width*(0.5+0.42*(-0.866)))); g.drawString("30\u00ba",(int)(r.width*(0.5-0.46*(0.500))),(int)(r.width*(0.5+0.42*(-0.866)))); g.drawString("60\u00ba",(int)(r.width*(0.5+0.41*(0.886))),(int)(r.width*(0.5+0.44*(-0.48)))); g.drawString("60\u00ba",(int)(3+r.width*(0.5-0.41*(0.98))),(int)(r.width*(0.5+0.44*(-0.48)))); g.drawString("90\u00ba",(int)(r.width*(0.5+0.42*(1.000))),(int)(r.width*(0.5+0.30*(0.05)))); g.drawString("90\u00ba",(int)(3+r.width*(0.5-0.45*(1.02))),(int)(r.width*(0.5+0.30*(0.05)))); g.drawString("120\u00ba",(int)(r.width*(0.5+0.42*(0.866))),(int)(r.width*(0.5+0.47*(0.50)))); g.drawString("120\u00ba",(int)(3+r.width*(0.5-0.46*(0.92))),(int)(r.width*(0.5+0.48*(0.50)))); g.drawString("150\u00ba",(int)(r.width*(0.5+0.42*(0.450))),(int)(r.width*(0.5+0.47*(0.83)))); g.drawString("150\u00ba",(int)(r.width*(0.5-0.47*(0.550))),(int)(r.width*(0.5+0.47*(0.83)))); g.drawString("180\u00ba",(int)(r.width*(0.5-0.42*(0.070))),(int)(r.width*(0.5+0.44*(1.00)))); // THETA LABEL g.setColor(Color.black); g.setFont(new Font("Serif",Font.PLAIN,ant.font24)); g.drawString("\u03b8",ant.s30,ant.s30); } else{ g.setColor(Color.black); g.setFont(new Font("Serif",Font.PLAIN,ant.font16)); g.drawString("\u03b8",r.width-ant.s75,ant.s20); g.setFont(new Font("Serif",Font.PLAIN,ant.font16)); g.drawString("= 90 \u00ba",r.width-ant.s63,ant.s20); // PHI LABEL g.setColor(Color.black); g.setFont(new Font("Serif",Font.PLAIN,ant.font24)); g.drawString("\u03c6",ant.s30,ant.s30); g.setColor(Color.blue); g.setFont(new Font("SanSerif",Font.PLAIN,ant.font11)); g.setColor(Color.black); g.drawString("90\u00ba",(int)(r.width*(0.5-0.4*(0.029))),(int)(r.width*(0.5+0.42*(-1.00)))); g.drawString("60\u00ba",(int)(r.width*(0.5+0.42*(0.500))),(int)(r.width*(0.5+0.42*(-0.866)))); g.drawString("120\u00ba",(int)(r.width*(0.5-0.47*(0.502))),(int)(r.width*(0.5+0.42*(-0.866)))); g.drawString("30\u00ba",(int)(r.width*(0.5+0.42*(0.866))),(int)(r.width*(0.5+0.44*(-0.48)))); g.drawString("150\u00ba",(int)(r.width*(0.5-0.41*(1.0))),(int)(r.width*(0.5+0.44*(-0.48)))); g.drawString("0\u00ba",(int)(r.width*(0.5+0.42*(1.000))),(int)(r.width*(0.5+0.30*(0.05)))); g.drawString("180\u00ba",(int)(3+r.width*(0.5-0.45*(1.05))),(int)(r.width*(0.5+0.30*(0.05)))); g.drawString("330\u00ba",(int)(r.width*(0.5+0.42*(0.866))),(int)(r.width*(0.5+0.47*(0.50)))); g.drawString("210\u00ba",(int)(3+r.width*(0.5-0.46*(0.92))),(int)(r.width*(0.5+0.48*(0.50)))); g.drawString("300\u00ba",(int)(r.width*(0.5+0.42*(0.450))),(int)(r.width*(0.5+0.47*(0.83)))); g.drawString("240\u00ba",(int)(r.width*(0.5-0.47*(0.550))),(int)(r.width*(0.5+0.47*(0.83)))); g.drawString("270\u00ba",(int)(r.width*(0.5-0.42*(0.070))),(int)(r.width*(0.5+0.44*(1.00)))); } g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); if(this.is_theta_plane==true){//This is the theta plane // draw a dipole antenna in the center g.setColor(Color.red); MaestroG.drawLineThick2(g, r.width*(0.5),r.width*(0.5-0.1),r.width*(0.5),r.width*(0.5-0.02), ant.s3, Color.red); MaestroG.drawLineThick2(g, r.width*(0.5),r.width*(0.5+0.1),r.width*(0.5),r.width*(0.5+0.02), ant.s3, Color.red); } else{//This is phi plane g.setColor(Color.red); MaestroG.fillCircle((int)(r.width*(0.5)),(int)(r.width*(0.5)),ant.s6,g); } if(ant.dipolelength!=0.0){ //Now draw the radiation diagram if(ant.rcons.c1.getState()==true){ g.setColor(Color.blue.darker()); //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); for(i=0;i<360;i++){ theta = (float)(Math.PI*i/360.0f-Math.PI/2.0); theta2 = (float)(Math.PI*(i+1)/360.0f-Math.PI/2.0); if(this.is_theta_plane==true){//theta-plane g.setColor(Color.blue.darker()); MaestroG.drawLineThick( g,(r.width*0.5) + (r.width*(0.4*ant.efield[i]*Math.cos(theta))), (r.width*0.5) + (r.width*(0.4*ant.efield[i]*Math.sin(theta))), (r.width*0.5) + (r.width*(0.4*ant.efield[i+1]*Math.cos(theta2))), (r.width*0.5) + (r.width*(0.4*ant.efield[i+1]*Math.sin(theta2))),thick_plot,Color.blue.darker()); MaestroG.drawLineThick( g,(r.width*0.5) - (r.width*(0.4*ant.efield[i]*Math.cos(theta))), (r.width*0.5) - (r.width*(0.4*ant.efield[i]*Math.sin(theta))), (r.width*0.5) - (r.width*(0.4*ant.efield[i+1]*Math.cos(theta2))), (r.width*0.5) - (r.width*(0.4*ant.efield[i+1]*Math.sin(theta2))),thick_plot,Color.blue.darker()); /* g.drawLine( (int)(r.width*0.5) + (int)(r.width*(0.4*ant.efield[i]*Math.cos(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.efield[i]*Math.sin(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.efield[i+1]*Math.cos(theta2))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.efield[i+1]*Math.sin(theta2)))); g.drawLine( (int)(r.width*0.5) - (int)(r.width*(0.4*ant.efield[i]*Math.cos(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.efield[i]*Math.sin(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.efield[i+1]*Math.cos(theta2))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.efield[i+1]*Math.sin(theta2)))); */ } else{ g.setColor(Color.blue.darker()); MaestroG.drawLineThick( g,(r.width*0.5) + (r.width*(0.4*ant.eefield[i]*Math.cos(theta))), (r.width*0.5) + (r.width*(0.4*ant.eefield[i]*Math.sin(theta))), (r.width*0.5) + (r.width*(0.4*ant.eefield[i+1]*Math.cos(theta2))), (r.width*0.5) + (r.width*(0.4*ant.eefield[i+1]*Math.sin(theta2))),thick_plot,Color.blue.darker()); MaestroG.drawLineThick( g,(r.width*0.5) - (r.width*(0.4*ant.eefield[i]*Math.cos(theta))), (r.width*0.5) - (r.width*(0.4*ant.eefield[i]*Math.sin(theta))), (r.width*0.5) - (r.width*(0.4*ant.eefield[i+1]*Math.cos(theta2))), (r.width*0.5) - (r.width*(0.4*ant.eefield[i+1]*Math.sin(theta2))),thick_plot,Color.blue.darker()); /* g.drawLine(//phi-plane (int)(r.width*0.5) + (int)(r.width*(0.4*ant.eefield[i]*Math.cos(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.eefield[i]*Math.sin(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.eefield[i+1]*Math.cos(theta2))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.eefield[i+1]*Math.sin(theta2)))); g.drawLine( (int)(r.width*0.5) - (int)(r.width*(0.4*ant.eefield[i]*Math.cos(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.eefield[i]*Math.sin(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.eefield[i+1]*Math.cos(theta2))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.eefield[i+1]*Math.sin(theta2)))); */ } } //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } if(ant.rcons.c3.getState()==true){ g.setColor(Color.magenta.darker()); //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); for(i=0;i<360;i++){ theta=(float)(Math.PI*i/360.0f-Math.PI/2.0); theta2 = (float)(Math.PI*(i+1)/360.0f-Math.PI/2.0); if(this.is_theta_plane==true){//theta-plane MaestroG.drawLineThick( g,(r.width*0.5) + (r.width*(0.4*ant.power[i]*Math.cos(theta))), (r.width*0.5) + (r.width*(0.4*ant.power[i]*Math.sin(theta))), (r.width*0.5) + (r.width*(0.4*ant.power[i+1]*Math.cos(theta2))), (r.width*0.5) + (r.width*(0.4*ant.power[i+1]*Math.sin(theta2))),thick_plot,Color.magenta.darker()); /* g.drawLine( (int)(r.width*0.5) + (int)(r.width*(0.4*ant.power[i]*Math.cos(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.power[i]*Math.sin(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.power[i+1]*Math.cos(theta2))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.power[i+1]*Math.sin(theta2))) ); */ } else{//phi-plane MaestroG.drawLineThick( g,(r.width*0.5) + (r.width*(0.4*ant.ppower[i]*Math.cos(theta))), (r.width*0.5) + (r.width*(0.4*ant.ppower[i]*Math.sin(theta))), (r.width*0.5) + (r.width*(0.4*ant.ppower[i+1]*Math.cos(theta2))), (r.width*0.5) + (r.width*(0.4*ant.ppower[i+1]*Math.sin(theta2))),thick_plot,Color.magenta.darker()); /* g.drawLine( (int)(r.width*0.5) + (int)(r.width*(0.4*ant.ppower[i]*Math.cos(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.ppower[i]*Math.sin(theta))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.ppower[i+1]*Math.cos(theta2))), (int)(r.width*0.5) + (int)(r.width*(0.4*ant.ppower[i+1]*Math.sin(theta2))) ); */ } } for(i=0;i<360;i++){ theta=(float)(Math.PI*i/360.0f-Math.PI/2.0); theta2 = (float)(Math.PI*(i+1)/360.0f-Math.PI/2.0); if(this.is_theta_plane==true){//theta-plane MaestroG.drawLineThick( g,(r.width*0.5) - (r.width*(0.4*ant.power[i]*Math.cos(theta))), (r.width*0.5) - (r.width*(0.4*ant.power[i]*Math.sin(theta))), (r.width*0.5) - (r.width*(0.4*ant.power[i+1]*Math.cos(theta2))), (r.width*0.5) - (r.width*(0.4*ant.power[i+1]*Math.sin(theta2))),thick_plot,Color.magenta.darker()); /* g.drawLine( (int)(r.width*0.5) - (int)(r.width*(0.4*ant.power[i]*Math.cos(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.power[i]*Math.sin(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.power[i+1]*Math.cos(theta2))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.power[i+1]*Math.sin(theta2))) ); */ } else{//phi-plane MaestroG.drawLineThick( g,(r.width*0.5) - (r.width*(0.4*ant.ppower[i]*Math.cos(theta))), (r.width*0.5) - (r.width*(0.4*ant.ppower[i]*Math.sin(theta))), (r.width*0.5) - (r.width*(0.4*ant.ppower[i+1]*Math.cos(theta2))), (r.width*0.5) - (r.width*(0.4*ant.ppower[i+1]*Math.sin(theta2))),thick_plot,Color.magenta.darker()); /* g.drawLine( (int)(r.width*0.5) - (int)(r.width*(0.4*ant.ppower[i]*Math.cos(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.ppower[i]*Math.sin(theta))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.ppower[i+1]*Math.cos(theta2))), (int)(r.width*0.5) - (int)(r.width*(0.4*ant.ppower[i+1]*Math.sin(theta2))) ); */ } } //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } } //PAINT AGAIN DIPOLE if(this.is_theta_plane==true){//This is the theta plane // draw a dipole antenna in the center g.setColor(Color.red); MaestroG.drawLineThick2(g, r.width*(0.5),r.width*(0.5-0.1),r.width*(0.5),r.width*(0.5-0.02), ant.s3, Color.red); MaestroG.drawLineThick2(g, r.width*(0.5),r.width*(0.5+0.1),r.width*(0.5),r.width*(0.5+0.02), ant.s3, Color.red); if(ant.rcons.c1.getState() == true){ g.setColor(Color.black); MaestroG.subscripter2("Electric Field"," E","","",g,ant.font13,ant.s10,r.height-ant.s10); } else if(ant.rcons.c3.getState() == true){ g.setColor(Color.black); MaestroG.subscripter2("Power Density"," S","av","",g,ant.font13,ant.s10,r.height-ant.s10); } } else{//This is phi plane g.setColor(Color.red); MaestroG.fillCircle((int)(r.width*(0.5)),(int)(r.width*(0.5)),ant.s6,g); if(ant.rcons.c1.getState() == true){ g.setColor(Color.black); MaestroG.subscripter2("Electric Field"," E","","",g,ant.font13,ant.s10,r.height-ant.s10); } else if(ant.rcons.c3.getState() == true){ g.setColor(Color.black); MaestroG.subscripter2("Power Density"," S","av","",g,ant.font13,ant.s10,r.height-ant.s10); } } } public void paint(Graphics g){ if(im == null){ im = createImage(getSize().width,getSize().height); buf = im.getGraphics(); drawCanvas(buf); } else{ drawCanvas(buf); } g.drawImage(im,0,0,null); //drawCanvas(g); } //Addition to reduce flicker new routine public void update(Graphics g){ // added to avoid clearing paint(g); } public void redraw(){ repaint(); } }//End of RadarCanvas