/** The main loop for the background thread. It is here that most of the work os orchestrated. */ public void run() { double thisCost = 500.0; double oldCost = 0.0; double dcost = 500.0; int countSame = 0; map.update(map.getGraphics()); while (countSame < 100) { generation++; int ioffset = matingPopulationSize; int mutated = 0; // Mate the chromosomes in the favoured population // with all in the mating population for (int i = 0; i < favoredPopulationSize; i++) { Chromosome cmother = chromosomes[i]; // Select partner from the mating population int father = (int) (0.999999 * Math.random() * (double) matingPopulationSize); Chromosome cfather = chromosomes[father]; mutated += cmother.mate(cfather, chromosomes[ioffset], chromosomes[ioffset + 1]); ioffset += 2; } // The new generation is in the matingPopulation area // move them to the correct area for sort. for (int i = 0; i < matingPopulationSize; i++) { chromosomes[i] = chromosomes[i + matingPopulationSize]; chromosomes[i].calculateCost(cities); } // Now sort the new mating population Chromosome.sortChromosomes(chromosomes, matingPopulationSize); double cost = chromosomes[0].getCost(); dcost = Math.abs(cost - thisCost); thisCost = cost; double mutationRate = 100.0 * (double) mutated / (double) matingPopulationSize; NumberFormat nf = NumberFormat.getInstance(); nf.setMinimumFractionDigits(2); nf.setMinimumFractionDigits(2); status.setText( "Generation " + generation + " Cost " + (int) thisCost + " Mutated " + nf.format(mutationRate) + "%"); if ((int) thisCost == (int) oldCost) { countSame++; } else { countSame = 0; oldCost = thisCost; } map.update(map.getGraphics()); } status.setText("Solution found after " + generation + " generations."); }
static { Stroke stroke = new BasicStroke(2); selectionShape = stroke.createStrokedShape(hitRect); format.setMinimumIntegerDigits(1); format.setMinimumFractionDigits(1); format.setMaximumFractionDigits(2); }
public void updateStates() { NumberFormat nf = NumberFormat.getInstance(); nf.setMaximumFractionDigits(2); nf.setMinimumFractionDigits(2); try { // System.out.println("getting variables."); status = cryo.cryoGetStatusCORBA(); frame.lblStatus.setText(statusString[status] + " "); heater = cryo.cryoGetHeaterCORBA(); frame.lblHeater.setText(nf.format(heater) + " watts"); temp = cryo.cryoGetTempCORBA(); frame.lblTemp.setText(nf.format(temp) + " deg"); cli = cryo.cryoGetCliCORBA(); if (Double.isNaN(cli)) { frame.lblCli.setText(cli + " "); } else frame.lblCli.setText(nf.format(cli) + " "); } catch (org.omg.CORBA.COMM_FAILURE cf) { // stop thread and try to reconnect to the server frame.lblStatus.setText("FAILURE!! Server connected?"); stop = true; return; } }
// // Sets the frame rate text displayed in the lower left corner. // void setFrameRateText() { NumberFormat nf = NumberFormat.getInstance(); nf.setMinimumFractionDigits(2); nf.setMaximumFractionDigits(2); frameRateText.text( "frames/sec = " + nf.format((double) frameCount / ((double) (time - lastTime) / 1000.0))); }
/** Update the statistic */ public void setStats(int mi, double me, int ma, double sd) { NumberFormat nf = NumberFormat.getInstance(); nf.setMaximumFractionDigits(2); nf.setMinimumFractionDigits(2); nf.setGroupingUsed(false); min.setText(Integer.toString(mi)); max.setText(Integer.toString(ma)); String s = nf.format(me); mean.setText(s); s = nf.format(sd); stdDev.setText(s); }