





This example demonstrates horizontal bar meters in a black coloring scheme.
ChartDirector 6.1 (Java Edition)
Black Horizontal Linear Meters
Source Code Listing
<%@page import="ChartDirector.*" %> <%@page import="javax.servlet.http.*" %> <%! // Function to create the demo charts String createChart(HttpServletRequest request, int chartIndex) { // The value to display on the meter double value = 75.35; // Create a LinearMeter object of size 250 x 75 pixels with black background and rounded corners LinearMeter m = new LinearMeter(250, 75, 0x000000); m.setRoundedFrame(Chart.Transparent); // Set the default text and line colors to white (0xffffff) m.setColor(Chart.TextColor, 0xffffff); m.setColor(Chart.LineColor, 0xffffff); // Set the scale region top-left corner at (14, 23), with size of 218 x 20 pixels. The scale // labels are located on the top (implies horizontal meter) m.setMeter(14, 23, 218, 20, Chart.Top); // Set meter scale from 0 - 100, with a tick every 10 units m.setScale(0, 100, 10); // The tick line width to 1 pixel m.setLineWidth(0, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 50, 0xeecc00, 80, 0xdd0000, 100}; double[] highLowColorScale = {0, 0x0000ff, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at y = 23 (top of scale) with zero width and ending // at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 23, 0, 23, 20); } else if (chartIndex == 2) { // Add the high low scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 3) { // Add the smooth color scale starting at y = 33 (center of scale) with zero width and // ending at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 33, 0, 23, 20); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale starting at y = 43 (bottom of scale) with zero width and // ending at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 43, 0, 23, 20); } // Add a blue (0x0000cc) pointer with white (0xffffff) border at the specified value m.addPointer(value, 0x0000cc, 0xffffff); // Add a label left aligned to (10, 61) using 8pt Arial Bold font m.addText(10, 61, "Temperature C", "Arial Bold", 8, Chart.TextColor, Chart.Left); // Add a text box right aligned to (235, 61). Display the value using white (0xffffff) 8pt Arial // Bold font on a black (0x000000) background with depressed grey (0x444444) rounded border. TextBox t = m.addText(235, 61, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff, Chart.Right ); t.setBackground(0x000000, 0x444444, -1); t.setRoundedCorners(3); // Output the chart return m.makeSession(request, "chart" + chartIndex); } %> <% String chart0URL = createChart(request, 0); String chart1URL = createChart(request, 1); String chart2URL = createChart(request, 2); String chart3URL = createChart(request, 3); String chart4URL = createChart(request, 4); String chart5URL = createChart(request, 5); %> <html> <body style="margin:5px 0px 0px 5px"> <div style="font-size:18pt; font-family:verdana; font-weight:bold"> Black Horizontal Linear Meters </div> <hr color="#000080"> <div style="font-size:10pt; font-family:verdana; margin-bottom:1.5em"> <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a> </div> <img src='<%=response.encodeURL("getchart.jsp?"+chart0URL)%>'> <img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'> <img src='<%=response.encodeURL("getchart.jsp?"+chart2URL)%>'> <img src='<%=response.encodeURL("getchart.jsp?"+chart3URL)%>'> <img src='<%=response.encodeURL("getchart.jsp?"+chart4URL)%>'> <img src='<%=response.encodeURL("getchart.jsp?"+chart5URL)%>'> </body> </html> |
import java.awt.*; import java.awt.event.*; import javax.swing.*; import ChartDirector.*; public class blackhlinearmeter implements DemoModule { //Name of demo program public String toString() { return "Black Horizontal Linear Meters"; } //Number of charts produced in this demo public int getNoOfCharts() { return 6; } //Main code for creating charts public void createChart(ChartViewer viewer, int chartIndex) { // The value to display on the meter double value = 75.35; // Create a LinearMeter object of size 250 x 75 pixels with black background and rounded // corners LinearMeter m = new LinearMeter(250, 75, 0x000000); m.setRoundedFrame(Chart.Transparent); // Set the default text and line colors to white (0xffffff) m.setColor(Chart.TextColor, 0xffffff); m.setColor(Chart.LineColor, 0xffffff); // Set the scale region top-left corner at (14, 23), with size of 218 x 20 pixels. The scale // labels are located on the top (implies horizontal meter) m.setMeter(14, 23, 218, 20, Chart.Top); // Set meter scale from 0 - 100, with a tick every 10 units m.setScale(0, 100, 10); // The tick line width to 1 pixel m.setLineWidth(0, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 50, 0xeecc00, 80, 0xdd0000, 100}; double[] highLowColorScale = {0, 0x0000ff, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at y = 23 (top of scale) with zero width and // ending at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 23, 0, 23, 20); } else if (chartIndex == 2) { // Add the high low scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 3) { // Add the smooth color scale starting at y = 33 (center of scale) with zero width and // ending at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 33, 0, 23, 20); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale starting at y = 43 (bottom of scale) with zero width and // ending at y = 23 with 20 pixels width m.addColorScale(smoothColorScale, 43, 0, 23, 20); } // Add a blue (0x0000cc) pointer with white (0xffffff) border at the specified value m.addPointer(value, 0x0000cc, 0xffffff); // Add a label left aligned to (10, 61) using 8pt Arial Bold font m.addText(10, 61, "Temperature C", "Arial Bold", 8, Chart.TextColor, Chart.Left); // Add a text box right aligned to (235, 61). Display the value using white (0xffffff) 8pt // Arial Bold font on a black (0x000000) background with depressed grey (0x444444) rounded // border. TextBox t = m.addText(235, 61, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff, Chart.Right); t.setBackground(0x000000, 0x444444, -1); t.setRoundedCorners(3); // Output the chart viewer.setChart(m); } //Allow this module to run as standalone program for easy testing public static void main(String[] args) { //Instantiate an instance of this demo module DemoModule demo = new blackhlinearmeter(); //Create and set up the main window JFrame frame = new JFrame(demo.toString()); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) {System.exit(0);} }); frame.getContentPane().setBackground(Color.white); frame.getContentPane().setLayout(new FlowLayout(FlowLayout.LEFT)); frame.setSize(800, 450); // Create the charts and put them in the content pane for (int i = 0; i < demo.getNoOfCharts(); ++i) { ChartViewer viewer = new ChartViewer(); demo.createChart(viewer, i); frame.getContentPane().add(viewer); } // Display the window frame.setVisible(true); } } |