// 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.io.*; import java.awt.*; import java.awt.geom.Arc2D; import java.awt.geom.Line2D; import java.awt.geom.Rectangle2D; import java.awt.image.BufferedImage; import java.io.IOException; import javax.imageio.ImageIO; public class Instructions extends Panel { private static final Color bgcolor = new Color(255,255,245); public TextField epsilon; private Paint paint; private Image im; private Graphics buf; private BufferedImage figure; public Button bupdate; public int ydown; StateVars state; private BufferedImage square_root; public Instructions (StateVars state){ super(); this.state = state; setLayout(null); getImages(); setBackground(bgcolor); // update button bupdate = new Button("CLOSE"); bupdate.setBackground(new Color(240,240,255)); //bupdate.setBackground(Color.white); add(bupdate); ydown = state.s50; int buttonx = state.s490; int buttony = state.s390+ydown; int buttonwide = state.s70; int buttonheight = state.s27; bupdate.setBounds(buttonx,buttony,buttonwide,buttonheight); bupdate.setFont(state.ttfFont.deriveFont(Font.BOLD,(float)state.font12)); 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); } private void getImages() { // read in the bullet image, because CHEERPJ does not render this // symbol in any font! (java to javascript converter) try { //bullet = ImageIO.read(getClass().getResource("bullet.png")); BufferedImage img = ImageIO.read(getClass().getResource("square_root.png")); int targetWidth = (int) (state.sfactor * img.getWidth()); int targetHeight = (int) (state.sfactor * img.getHeight()); square_root = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB); Graphics2D graphics2D = square_root.createGraphics(); graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); graphics2D.drawImage(img, 0, 0, targetWidth, targetHeight, 0, 0, img.getWidth(), img.getHeight(), null); graphics2D.dispose(); } catch (IOException e) { e.printStackTrace(); } } 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); boolean saveOldFlag = MaestroG.useBiggerFont; MaestroG.useBiggerFont = false; g.setColor(Color.black); g.setFont(state.ttfFont.deriveFont(Font.BOLD,(float)state.font16)); try { figure = ImageIO.read(getClass().getResource("figureb.gif")); } catch (IOException e) { e.printStackTrace(); } g.drawString("Instructions", state.s20,state.s25+ydown); g.setColor(Color.red); g.setFont(state.ttfFont.deriveFont(Font.BOLD,(float)state.font15)); g.drawString("Input", state.s25,state.s60+ydown); g.drawString("Design Procedure", state.s391,state.s30); g.setColor(Color.black); g.setFont(state.ttfFont.deriveFont((float)state.font14)); int deltaY = state.s20; int starty = state.s30+ydown; //INPUT FontMetrics fmNormal, fmSmall; g.setFont(state.ttfFont.deriveFont((float)state.font12)); fmSmall = g.getFontMetrics(); g.setFont(state.ttfFont.deriveFont((float)state.font14)); fmNormal = g.getFontMetrics(); int lineLength = fmNormal.stringWidth("Main Line Parameters (Z and "); lineLength += fmSmall.stringWidth("01"); MaestroG.subscripter("Main Line Parameters (Z","01","and",g,state.font14,state.s25,state.s90+ydown); MaestroG.subscripter("\u03b5","r1",")",g,state.font14,state.s25+lineLength,state.s90+ydown); MaestroG.subscripter("Load Impedance Z","L","",g,state.font14,state.s25,state.s90+ydown+deltaY); //DESIGN PROCEDURE g.drawString("The goal is to select:", state.s391,starty); g.drawString(" (a) the distance d from the load at which to insert", state.s391,starty+2*deltaY); g.drawString(" the \u03bb/4 transformer. This is done such that", state.s391,starty+3*deltaY); g.drawString(" at d, Z(d) is purely real, which corresponds to ", state.s391,starty+4*deltaY); g.drawString(" the locations of voltage maxima and minima: ", state.s391,starty+5*deltaY); lineLength = fmNormal.stringWidth(" d = dmax and "); lineLength += fmSmall.stringWidth("1"); MaestroG.subscripter(" d","1"," = dmax and ", g,state.font14,state.s391,starty+6*deltaY); MaestroG.subscripter("d","2"," = dmin (2 solutions)", g,state.font14,state.s391+lineLength,starty+6*deltaY); lineLength = fmNormal.stringWidth(" (b) If d = d"); lineLength += fmSmall.stringWidth("1"); MaestroG.subscripter(" (b) If d = d","1","", g,state.font14,state.s391,starty+8*deltaY); g.drawString(" then ",state.s391+lineLength,starty+8*deltaY); lineLength += fmNormal.stringWidth(" then "); g.setFont(state.ttfFont.deriveFont((float)state.font14)); MaestroG.subscripter("Z","02"," = ", g,state.font14,state.s391+lineLength,starty+8*deltaY); lineLength += fmNormal.stringWidth("Z = "); lineLength += fmSmall.stringWidth("02"); //MaestroG.subscripter("\u221AZ","01","Z(", // g,state.font14,state.s391+lineLength,starty+8*deltaY); MaestroG.ImgSubTxtTxt(square_root,"Z","01","Z(", g,state.font14,state.s391+lineLength,starty+8*deltaY,this); //int xstart = state.s391+lineLength+fmNormal.stringWidth("\u221A"); //lineLength += fmNormal.stringWidth("\u221AZZ("); int xstart = state.s391+lineLength+square_root.getWidth(); lineLength += square_root.getWidth() + fmNormal.stringWidth("ZZ("); lineLength += fmSmall.stringWidth("01"); MaestroG.subscripter("d","1",")",g,state.font14,state.s395+lineLength,starty+8*deltaY); int xend = xstart + fmNormal.stringWidth("ZZ(d)")+fmSmall.stringWidth("0011"); g.drawLine(xstart-state.s1,starty+8*deltaY - state.s14,xend,starty+8*deltaY - state.s14); lineLength = fmNormal.stringWidth(" (c) If d = d"); lineLength += fmSmall.stringWidth("2"); MaestroG.subscripter(" (c) If d = d","2","", g,state.font14,state.s391,starty+10*deltaY); g.drawString(" then ",state.s391+lineLength,starty+10*deltaY); lineLength += fmNormal.stringWidth(" then "); g.setFont(state.ttfFont.deriveFont((float)state.font14)); MaestroG.subscripter("Z","02"," = ", g,state.font14,state.s391+lineLength,starty+10*deltaY); lineLength += fmNormal.stringWidth("Z = "); lineLength += fmSmall.stringWidth("02"); //MaestroG.subscripter("\u221AZ","01","Z(", // g,state.font14,state.s391+lineLength,starty+10*deltaY); MaestroG.ImgSubTxtTxt(square_root,"Z","01","Z(", g,state.font14,state.s391+lineLength,starty+10*deltaY,this); xstart = state.s391+lineLength+fmNormal.stringWidth("\u221A"); //lineLength += fmNormal.stringWidth("\u221AZZ("); lineLength += square_root.getWidth() + fmNormal.stringWidth("ZZ("); lineLength += fmSmall.stringWidth("01"); MaestroG.subscripter("d","2",")", g,state.font14,state.s395+lineLength,starty+10*deltaY); xend = xstart + fmNormal.stringWidth("ZZ(d)")+fmSmall.stringWidth("0012"); g.drawLine(xstart-state.s1,starty+10*deltaY - state.s14,xend,starty+10*deltaY - state.s14); //g.drawImage(figure,state.s20,state.s100,this); // DRAW SCALABLE IMAGE OF THE CIRCUIT int y_fig = state.s228+ydown; int x_left = state.s30; int Length_A = state.s85; int Length_B = state.s90; int Length_C = state.s100; int Length_D = state.s20; int height_A = state.s70; int height_B = state.s12; int height_C = state.s50; int load_wx = state.s12; int load_wy = state.s20; int loadx = x_left + Length_A + Length_B + Length_C + Length_D; int loady = y_fig + height_A/2; int stem = state.s15; int Radius = state.s8; int Radius1 = state.s8; int Radius2 = state.s4; // Input section Line drawLineThick(g,(double)x_left,(double)y_fig, (double)(x_left + Length_A),(double)y_fig,state.s2,Color.cyan.darker()); drawLineThick(g,(double)x_left,(double)(y_fig+height_A), (double)(x_left + Length_A),(double)(y_fig+height_A),state.s2,Color.cyan.darker()); // Output section Line drawLineThick(g,(double)(x_left + Length_A + Length_B),(double)y_fig, (double)(x_left + Length_A + Length_B + Length_C),(double)y_fig,state.s2,Color.cyan.darker()); drawLineThick(g,(double)(x_left + Length_A + Length_B),(double)(y_fig+height_A), (double)(x_left + Length_A + Length_B + Length_C),(double)(y_fig+height_A),state.s2,Color.cyan.darker()); // Transformer section Line drawLineThick(g,(double)x_left + Length_A,(double)y_fig, (double)(x_left + Length_A),(double)(y_fig + height_B),state.s2,Color.red); drawLineThick(g,(double)x_left + Length_A,(double)(y_fig + height_A), (double)(x_left + Length_A),(double)(y_fig+height_A-height_B),state.s2,Color.red); drawLineThick(g,(double)(x_left + Length_A + Length_B),(double)y_fig, (double)(x_left + Length_A + Length_B),(double)(y_fig + height_B),state.s2,Color.red); drawLineThick(g,(double)(x_left + Length_A + Length_B),(double)(y_fig + height_A), (double)(x_left + Length_A + Length_B),(double)(y_fig+height_A-height_B),state.s2,Color.red); drawLineThick(g,(double)x_left + Length_A,(double)y_fig + height_B, (double)(x_left + Length_A + Length_B),(double)y_fig + height_B,state.s2,Color.red); drawLineThick(g,(double)x_left + Length_A,(double)(y_fig + height_A - height_B), (double)(x_left + Length_A + Length_B),(double)(y_fig+height_A-height_B),state.s2,Color.red); // Load drawLineThick(g,(double)(x_left + Length_A + Length_B + Length_C),(double)y_fig, (double)(x_left + Length_A + Length_B + Length_C + Length_D),(double)y_fig,state.s2,Color.black); drawLineThick(g,(double)(x_left + Length_A + Length_B + Length_C),(double)(y_fig+height_A), (double)(x_left + Length_A + Length_B + Length_C + Length_D),(double)(y_fig+height_A),state.s2,Color.black); drawLineThick(g,(double)(x_left + Length_A + Length_B + Length_C + Length_D),(double)(y_fig), (double)(x_left + Length_A + Length_B + Length_C + Length_D),(double)(y_fig+height_A),state.s2,Color.black); // Wire connections drawConnect(x_left + Length_A, y_fig, g); drawConnect(x_left + Length_A, y_fig + height_A, g); drawConnect(x_left + Length_A + Length_B, y_fig, g); drawConnect(x_left + Length_A + Length_B, y_fig + height_A, g); drawConnect(x_left + Length_A + Length_B + Length_C, y_fig, g); drawConnect(x_left + Length_A + Length_B + Length_C, y_fig + height_A, g); fillRectangleThick(g2d,(double)(loadx-load_wx), (double)(loady - load_wy), (double)(2.0 * load_wx),(double)(2.0 * load_wy), 2, Color.white); drawRectangleThick(g2d,(double)(loadx-load_wx), (double)(loady - load_wy), (double)(2.0 * load_wx),(double)(2.0 * load_wy), 1, Color.black); MaestroG.subscripter2("Z","01","",g,state.font11,x_left + 3*Length_A/35,loady+load_wy/4); MaestroG.subscripter2("Z","in","",g,state.font11,x_left + 20*Length_A/35,loady+load_wy/4); MaestroG.subscripter2("Z","02","",g,state.font11,x_left + Length_A + 40*Length_B/90,loady+load_wy/4); MaestroG.subscripter2("Z","01","",g,state.font11,x_left + Length_A + Length_B + 45*Length_C/100,loady+load_wy/4); MaestroG.subscripter2("Z","L","",g,state.font11,loadx-55*load_wx/100,loady+load_wy/4); MaestroG.subscripter2("Z(d)","","",g,state.font11,x_left + Length_A + Length_B - 15*stem/10,loady + 12*height_A/10); MaestroG.SerifItalic("\u03bb/4",g,state.font12,x_left+Length_A+Length_B/2-3,y_fig-25*Radius/10); MaestroG.SerifItalic("d",g,state.font12,x_left+Length_A+Length_B+Length_C/2,y_fig-25*Radius/10); MaestroG.SerifItalic("M",g,state.font12,x_left+Length_A-4*fmNormal.stringWidth("M")/10,y_fig-38*Radius/10); MaestroG.SerifItalic("M'",g,state.font12,x_left+Length_A-fmNormal.stringWidth("M")/2,y_fig+height_A+3*Radius); MaestroG.SerifItalic("B",g,state.font12,x_left+Length_A+Length_B-4*fmNormal.stringWidth("B")/10,y_fig-38*Radius/10); MaestroG.SerifItalic("B'",g,state.font12,x_left+Length_A+Length_B-fmNormal.stringWidth("B")/2,y_fig+height_A+3*Radius); MaestroG.SerifItalic("A",g,state.font12,x_left+Length_A+Length_B+Length_C-4*fmNormal.stringWidth("A")/10,y_fig-38*Radius/10); MaestroG.SerifItalic("A'",g,state.font12,x_left+Length_A+Length_B+Length_C-fmNormal.stringWidth("A")/2,y_fig+height_A+3*Radius); g.setColor(Color.red); MaestroG.subscripter4("Feedline","","",g,state.font10,x_left,y_fig-Radius); g.setColor(Color.red); drawArrowScaled(x_left+Length_A, loady, 7, state.sfactor, g); drawLineThick(g,(double)(x_left+Length_A+state.s1),(double)loady, (double)(x_left + Length_A - stem),(double)loady,state.s1,Color.red); g.setColor(Color.green.darker()); drawArrowScaled(x_left+Length_A+Length_B, loady, 7, state.sfactor, g); drawLineThick(g,(double)(x_left+ Length_A+Length_B+state.s1),(double)loady, (double)(x_left + Length_A + Length_B - stem),(double)loady,state.s1,Color.green.darker()); drawLineThick(g,(double)(x_left + Length_A + Length_B - stem),(double)loady, (double)(x_left + Length_A + Length_B - stem),(double)loady + height_A,state.s1,Color.green.darker()); g.setColor(Color.black); g.drawLine(x_left+Length_A,y_fig-Radius,x_left+Length_A,y_fig-3*Radius); g.drawLine(x_left+Length_A+Length_B,y_fig-Radius,x_left+Length_A+Length_B,y_fig-3*Radius); g.drawLine(x_left+Length_A+Length_B+Length_C,y_fig-Radius,x_left+Length_A+Length_B+Length_C,y_fig-3*Radius); g.drawLine(x_left+Length_A,y_fig-2*Radius,x_left+Length_A+Length_B,y_fig-2*Radius); g.drawLine(x_left+Length_A+Length_B,y_fig-2*Radius,x_left+Length_A+Length_B+Length_C,y_fig-2*Radius); drawArrowScaled(x_left+Length_A+state.s8, y_fig-2*Radius, 4, state.sfactor, g); drawArrowScaled(x_left+Length_A+Length_B-state.s8, y_fig-2*Radius, 3, state.sfactor, g); drawArrowScaled(x_left+Length_A+Length_B+state.s8, y_fig-2*Radius, 4, state.sfactor, g); drawArrowScaled(x_left+Length_A+Length_B+Length_C-state.s8, y_fig-2*Radius, 3, state.sfactor, g); 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(state.ttfFont.deriveFont((float)state.font14)); fm = g.getFontMetrics(); g.drawString("Application Design: Umberto Ravaioli",startingX+state.s15,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(state.ttfFont.deriveFont((float)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); } private void drawConnect(int x, int y, Graphics g){ int tmp1, tmp2; tmp1 = state.s6; tmp2 = tmp1-state.s2; //drawRect(x,y,tmp1,tmp1,Color.white,g); //drawRect(x,y,tmp2,tmp2,Color.black,g); Graphics2D g2d = (Graphics2D)g; g2d.setStroke(new BasicStroke(2)); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g2d.setPaint(Color.white); g.fillOval(x-tmp1/2,y-tmp1/2,tmp1,tmp1); g2d.setPaint(Color.cyan.darker()); //g.fillOval(x-tmp2/2,y-tmp2/2,tmp2,tmp2); Arc2D.Double arc_zero = new Arc2D.Double((double)(x-tmp1/2),(double)(y-tmp1/2), (double)tmp1,(double)tmp1,0,360,0); g2d.draw(arc_zero); g2d.setStroke(new BasicStroke(1)); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } public void drawLineThick(Graphics g, double x1, double y1, double x2, double y2, int thick, Color color){ Graphics2D g2d = (Graphics2D)g; g2d.setPaint(color); g2d.setStroke(new BasicStroke(thick,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND)); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); Line2D.Double line = new Line2D.Double(x1,y1,x2,y2); g2d.draw(line); g2d.setStroke(new BasicStroke(1)); //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } public void drawRectangleThick(Graphics g, double x1, double y1, double x2, double y2, int thick, Color color){ Graphics2D g2d = (Graphics2D)g; g2d.setPaint(color); g2d.setStroke(new BasicStroke(thick,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND)); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); Rectangle2D rect = new Rectangle2D.Double(x1,y1,x2,y2); g2d.draw(rect); g2d.setStroke(new BasicStroke(1)); //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } public void fillRectangleThick(Graphics g, double x1, double y1, double x2, double y2, int thick, Color color){ Graphics2D g2d = (Graphics2D)g; g2d.setPaint(color); g2d.setStroke(new BasicStroke(thick,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND)); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); Rectangle2D rect = new Rectangle2D.Double(x1,y1,x2,y2); g2d.fill(rect); g2d.setStroke(new BasicStroke(1)); //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } public void drawArrowScaled(int x, int y, int tipo, double sfactor, Graphics g){ Graphics2D g2d = (Graphics2D)g; double s; s = sfactor; switch (tipo){ case 1://ArrowUpSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x,y-(int)(s*8)); //draw oblique arrow head Polygon pH = new Polygon(); pH.addPoint(x-(int)(s*2), y-(int)(s*2)); pH.addPoint(x+(int)(s*2), y-(int)(s*2)); pH.addPoint(x,y-(int)(s*8)); g.drawPolygon(pH); g.fillPolygon(pH); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 2://ArrowDownSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x,y+(int)(s*8)); //draw oblique arrow head Polygon pJ = new Polygon(); pJ.addPoint(x-(int)(s*2), y+(int)(s*2)); pJ.addPoint(x+(int)(s*2), y+(int)(s*2)); pJ.addPoint(x,y+(int)(s*8)); g.drawPolygon(pJ); g.fillPolygon(pJ); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 3://ArrowRightSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x+(int)(s*8),y); //draw oblique arrow head Polygon pK = new Polygon(); pK.addPoint(x+(int)(s*2), y-(int)(s*2)); pK.addPoint(x+(int)(s*2), y+(int)(s*2)); pK.addPoint(x+(int)(s*8),y); g.drawPolygon(pK); g.fillPolygon(pK); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 4://ArrowLeftSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x-(int)(s*8),y); //draw oblique arrow head Polygon pL = new Polygon(); pL.addPoint(x-(int)(s*2), y-(int)(s*2)); pL.addPoint(x-(int)(s*2), y+(int)(s*2)); pL.addPoint(x-(int)(s*8),y); g.drawPolygon(pL); g.fillPolygon(pL); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 5://ArrowOblique 45 degrees NE g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); //draw oblique arrow head Polygon pM = new Polygon(); //draw oblique arrow head pM.addPoint(x+(int)(s*5),y-(int)(s*5)); pM.addPoint(x-(int)(s*1),y-(int)(s*2)); pM.addPoint(x+(int)(s*2),y+(int)(s*1)); g.drawPolygon(pM); g.fillPolygon(pM); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 7://Larger ArrowRightSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x+(int)(s*10),y); //draw oblique arrow head Polygon pR = new Polygon(); pR.addPoint(x+(int)(s*3), y-(int)(s*3)); pR.addPoint(x+(int)(s*3), y+(int)(s*3)); pR.addPoint(x+(int)(s*10),y); g.drawPolygon(pR); g.fillPolygon(pR); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; case 8://Larger ArrowLeftSmooth g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.drawLine(x,y,x-(int)(s*10),y); //draw oblique arrow head Polygon pS = new Polygon(); pS.addPoint(x-(int)(s*3), y-(int)(s*3)); pS.addPoint(x-(int)(s*3), y+(int)(s*3)); pS.addPoint(x-(int)(s*10),y); g.drawPolygon(pS); g.fillPolygon(pS); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); break; } } //---------------------------------------------------------------------------------------- }//End