// About.java /* A Java class for * LineImpedance.java * Electromagnetic Transmission Line Applet * Applet without Smith Chart - Prepared by Umberto Ravaioli * for 6th edition of Fundamentals of Applied Electromagnetics Book * May 2009 - All Rights Reserved */ import java.awt.*; public class Instructions extends Panel { private static final Color bgcolor = new Color(255,255,250); public TextField epsilon; private Paint paint; private Image im; private Graphics buf; public Button bupdate; Trans_State state; public Instructions(Trans_State state){ super(); this.state = state; setLayout(null); setBackground(bgcolor); // update button bupdate = new Button("CLOSE"); bupdate.setBackground(new Color(240,240,255)); add(bupdate); bupdate.setFont(new Font("SanSerif",Font.PLAIN,state.font12)); int buttonx = state.s550; int buttony = state.s350; int buttonwide = state.s70; int buttonheight = state.s27; bupdate.setBounds(buttonx,buttony,buttonwide,buttonheight); Panel ps7 = new Panel(); ps7.setBackground(Color.lightGray); add(ps7); ps7.setBounds(buttonx-1,buttony-1,buttonwide+2,buttonheight+2); Panel ps8 = new Panel(); ps8.setBackground(Color.black); add(ps8); ps8.setBounds(buttonx-2,buttony-2,buttonwide+4,buttonheight+4); } 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); } //Addition to reduce flicker new routine public void update(Graphics g){ // added to avoid clearing paint(g); } public void clear(){ this.getGraphics().clearRect(0,0,getSize().width,getSize().height); repaint(); } public void drawCanvas(Graphics g){ FontMetrics fm; Graphics2D g2d = (Graphics2D)g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g.clearRect(0,0,getSize().width-1,getSize().height-1); //g.setFont(font_one); //fm = g.getFontMetrics(); //boolean saveOldFlag = MaestroG.useBiggerFont; //MaestroG.useBiggerFont = false; g.setColor(Color.black); g.drawRect(0,0,getSize().width-1,getSize().height-1); //g.setFont(state.ttfFont.deriveFont(Font.BOLD,16f)); g.setFont(new Font("SanSerif",Font.BOLD,state.font16)); g.drawString("Instructions", state.s20,state.s25); g.setColor(Color.red); //g.setFont(state.ttfFont.deriveFont(Font.BOLD,15f)); g.setFont(new Font("SanSerif",Font.BOLD,state.font15)); g.drawString("Inputs", state.s25,state.s50); int startx2 = state.s400; g.drawString("Displayed Information", startx2,state.s50); g.setColor(Color.black); //g.setFont(state.ttfFont.deriveFont(14f)); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); int deltaY = state.s20; int starty = state.s80; //INPUT g.setFont(new Font("SanSerif",Font.BOLD,state.font14)); g.drawString("Set: Load", state.s25,starty); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("Load Parameters", state.s25,starty+deltaY); g.drawString("Design Target for SWR", state.s25,starty+2*deltaY); g.setFont(new Font("SanSerif",Font.BOLD,state.font14)); g.drawString("Set: Line / Discrete Element", state.s25,starty+3*deltaY); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("Characteristic impedance of line", state.s25,starty+4*deltaY); MaestroG.subscripter("\u03b5","r"," = relative permittivity of dielectric", g,state.font14,state.s25,starty+5*deltaY); g.drawString("Location of Discrete Element", state.s25,starty+6*deltaY); g.drawString("Admittance of Discrete Element", state.s25,starty+7*deltaY); g.setFont(new Font("SanSerif",Font.BOLD,state.font14)); g.drawString("Set: Frequency", state.s25,starty+8*deltaY); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); MaestroG.subscripter("f","o"," = design frequency", g,state.font14,state.s25,starty+9*deltaY); g.setFont(new Font("SanSerif",Font.BOLD,state.font14)); g.drawString("Set: Generator", state.s25,starty+10*deltaY); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("Voltage and source impedance of generator", state.s25,starty+11*deltaY); //OUTPUT g.drawString("SWR = Standing Wave Ratio",startx2,starty); //g.drawString("| \u0393 | = magnitude of reflection coefficient", // startx2,starty+deltaY); MaestroG.subscripterS("| \u0393 |" ,""," = magnitude of reflection coefficient", g,state.font14,startx2,starty+deltaY); starty += state.s10; g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("Impedance matching condition can be realized by",startx2,starty+2*deltaY); g.drawString("changing location and admittance of the discrete",startx2,starty+3*deltaY); g.drawString("element. The user can monitor the Smith chart or",startx2,starty+4*deltaY); g.drawString("the standing wave pattern plots to ensure that ",startx2,starty+5*deltaY); g.drawString("correct trends are followed during the procedure.",startx2,starty+6*deltaY); g.setColor(Color.blue); g.drawString("In the panel \"Set Line / Discrete Element\" enable ",startx2,starty+7*deltaY); g.drawString("Lock Cursor to synchronize element location to the ",startx2,starty+8*deltaY); g.drawString("Smith Chart. ",startx2,starty+9*deltaY); g.setColor(Color.black); starty += state.s10; g.setFont(new Font("SanSerif",Font.BOLD,state.font14)); g.drawString("An alert is displayed on the Circuit Diagram",startx2,starty+10*deltaY); g.drawString("when the design target for SWR is achieved.",startx2,starty+11*deltaY); drawCopyRight(g); //MaestroG.useBiggerFont = saveOldFlag; } public void drawCopyRight(Graphics g) { int deltaY = state.s20; int startingY = getSize().height - state.s70; int startingX = 0; FontMetrics fm; g.setColor(Color.black); g.setColor(Color.black); //g.setFont(normalfont14); //g.setFont(state.ttfFont.deriveFont(14f)); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); fm = g.getFontMetrics(); g.drawString("Application Design: Umberto Ravaioli", startingX+15,startingY+deltaY); MaestroG.superscripter("Interactive Java","TM"," platform: www.amanogawa.com", g,state.font14,startingX+state.s15,startingY+2*deltaY); int lineLength = fm.stringWidth("Interactive JavaTM platform: www.amanogawa.com"); lineLength += state.s10; g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("All Rights Reserved",startingX+state.s15,startingY+3*deltaY); g.drawLine(startingX,startingY, startingX+lineLength+state.s25,startingY); g.drawLine(startingX+lineLength+state.s25,startingY, startingX+lineLength+state.s25,startingY+4*deltaY); } //---------------------------------------------------------------------------------------- }//End