<%@page import="ChartDirector.*" %> <% //The data for the chart double[] data = {50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84, 82, 80, 84, 89}; //The error data representing the error band around the data points double[] errData = {5, 6, 5.1, 6.5, 6.6, 8, 5.4, 5.1, 4.6, 5.0, 5.2, 6.0, 4.9, 5.6, 4.8, 6.2, 7.4, 7.1, 6.5, 9.6, 12.1, 15.3, 18.5, 20.9, 24.1}; //The labels for the chart String[] labels = {"Jan 01", "-", "-", "Apr", "-", "-", "Jul", "-", "-", "Oct", "-", "-", "Jan 02", "-", "-", "Apr", "-", "-", "Jul", "-", "-", "Oct", "-", "-", "Jan 03"}; //Create a XYChart object of size 550 x 220 pixels XYChart c = new XYChart(550, 220); //Set the plot area at (50, 5) and of size 480 x 180 pixels. Enabled both //vertical and horizontal grids by setting their colors to light grey (0xc0c0c0) c.setPlotArea(50, 5, 480, 180).setGridColor(0xc0c0c0, 0xc0c0c0); //Add a legend box (50, 5) (top of plot area) using horizontal layout. Use 8 pts //Arial font. Disable bounding box (set border to transparent). LegendBox legendBox = c.addLegend(50, 5, false, "", 8); legendBox.setBackground(Chart.Transparent); //Add keys to the legend box to explain the color zones legendBox.addKey("Historical", 0x9999ff); legendBox.addKey("Forecast", 0xff9966); //Add a title to the y axis. c.yAxis().setTitle("Energy Consumption"); //Set the labels on the x axis c.xAxis().setLabels(labels); //Add a line layer to the chart LineLayer layer = c.addLineLayer2(); //Create the color to draw the data line. The line is blue (0x333399) to the //left of x = 18, and become a red (0xd04040) dash line to the right of x = 18. int lineColor = layer.xZoneColor(18, 0x333399, c.dashLineColor(0xd04040, Chart.DashLine)); //Add the data line layer.addDataSet(data, lineColor); //Create the color to draw the err zone. The color is semi-transparent blue //(0x809999ff) to the left of x = 18, and become semi-transparent red //(0x80ff9966) to the right of x = 18. int errColor = layer.xZoneColor(18, 0x809999ff, 0x80ff9966); //Add the upper border of the err zone layer.addDataSet(new ArrayMath(data).add(errData).result(), errColor); //Add the lower border of the err zone layer.addDataSet(new ArrayMath(data).sub(errData).result(), errColor); //Set the default line width to 2 pixels layer.setLineWidth(2); //Color the region between the err zone lines c.addInterLineLayer(layer.getLine(1), layer.getLine(2), errColor); //output the chart request.getSession().setAttribute("chart1", c.makeChart2(Chart.PNG)); %> <html> <body topmargin=0 leftmargin=5 rightmargin=0 marginwidth=5 marginheight=0> <div style="font-size:18pt; font-family:verdana; font-weight:bold"> X Zone Coloring </div> <hr color="#000080"> <div style="font-size:10pt; font-family:verdana"> <a href="VIEWSOURCE.jsp?file=<%=request.getServletPath()%>"> View Chart Source Code </a> </div> <br> <img src="chart1.chart?no_cache=<%=Chart.getUniqueId()%>"> </body> </html>