Java熱圖圖表庫 JHeatChart

// Create some dummy data. double[][] data = new double[][]{{3,2,3,4,5,6},
                                 {2,3,4,5,6,7},
                                 {3,4,5,6,7,6},
                                 {4,5,6,7,6,5}};// Create our heat chart using our data. HeatChart chart = new HeatChart(data);// Customise the chart. chart.setTitle("This is my chart title");
chart.setXAxisLabel("X Axis");
chart.setYAxisLabel("Y Axis"); // Output the chart to a file. chart.saveToFile(new File("my-chart.png"));