





This example demonstrates vertical bar meters in a black coloring scheme, and with bars in various shading styles.
ChartDirector 6.1 (Java Edition)
Black Vertical Bar 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 = 66.77; // Create a LinearMeter object of size 70 x 260 pixels with black background and rounded corners LinearMeter m = new LinearMeter(70, 260, 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 (36, 30), with size of 20 x 196 pixels. The scale // labels are located on the left (default - implies vertical meter). m.setMeter(36, 30, 20, 196); // Set meter scale from 0 - 100, with a tick every 10 units m.setScale(0, 100, 10); // Add the chart title at the top center TextBox title = m.addText(m.getWidth() / 2, 5, "Temp C", "Arial Bold", 8, Chart.TextColor, Chart.TopCenter); // Move the scale labels 8 pixels from the meter scale to make room for the color scale m.setLabelPos(false, 8); // Demostrate different types of color scales double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00dd00, 50, 0xffff00, 80, 0xff0000, 100}; double[] highLowColorScale = {0, 0x0000ff, 40, Chart.Transparent, 60, Chart.Transparent, 100, 0xff0000}; double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners m.addBar(0, value, 0x0088ff, Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4); // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) m.addColorScale(smoothColorScale, 29, 4); } else if (chartIndex == 1) { // Add a yellow (0xCC9922) bar from 0 to value with bar lighting effect m.addBar(0, value, 0xcc9922, Chart.barLighting()); // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) m.addColorScale(smoothColorScale, 29, 4); // Set the title style to black text on a yellow (0xcc9922) background with rounded corners title.setFontColor(0x000000); title.setBackground(0xcc9922); title.setRoundedCorners(2); } else if (chartIndex == 2) { // Add a grey (0xaaaaaa) bar from 0 to value with bar lighting effect m.addBar(0, value, 0xaaaaaa, Chart.barLighting()); // Add a 4-pixel high/low color scale at x = 29 (left of meter scale) m.addColorScale(highLowColorScale, 29, 4); } else if (chartIndex == 3) { // Add a brown (0xbb6622) bar from 0 to value with cylinder lighting effect m.addBar(0, value, 0xbb6622, Chart.cylinderEffect()); // Add a 4 pixel thick brown (0xbb6622) frame m.setThickFrame(4, 0xbb6622); // Add a high only color scale at x = 29 (left of meter scale) m.addColorScale(highColorScale, 29, 4); } else if (chartIndex == 4) { // Add a purple (0x7755ee) bar from 0 to value m.addBar(0, value, 0x7755ee); // Add a 4 pixel thick purple (0x880088) frame m.setThickFrame(4, 0x880088); // Add a 4-pixel high/low color scale at x = 29 (left of meter scale) m.addColorScale(highLowColorScale, 29, 4); } else { // Add a green (0x00bb00) bar from 0 to value with soft lighting effect and 4 pixel rounded // corners m.addBar(0, value, 0x00bb00, Chart.softLighting(), 4); // Add a 4-pixel step color scale at x = 29 (left of meter scale) m.addColorScale(stepColorScale, 29, 4); } // Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold // font on a black (0x000000) background with depressed grey (0x333333) rounded border. TextBox t = m.addText(m.getWidth() / 2, m.getHeight() - 7, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff, Chart.BottomCenter); t.setBackground(0x000000, 0x333333, -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 Vertical Bar 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 blackvbarmeter implements DemoModule { //Name of demo program public String toString() { return "Black Vertical Bar 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 = 66.77; // Create a LinearMeter object of size 70 x 260 pixels with black background and rounded // corners LinearMeter m = new LinearMeter(70, 260, 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 (36, 30), with size of 20 x 196 pixels. The scale // labels are located on the left (default - implies vertical meter). m.setMeter(36, 30, 20, 196); // Set meter scale from 0 - 100, with a tick every 10 units m.setScale(0, 100, 10); // Add the chart title at the top center TextBox title = m.addText(m.getWidth() / 2, 5, "Temp C", "Arial Bold", 8, Chart.TextColor, Chart.TopCenter); // Move the scale labels 8 pixels from the meter scale to make room for the color scale m.setLabelPos(false, 8); // Demostrate different types of color scales double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00dd00, 50, 0xffff00, 80, 0xff0000, 100}; double[] highLowColorScale = {0, 0x0000ff, 40, Chart.Transparent, 60, Chart.Transparent, 100, 0xff0000}; double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded // corners m.addBar(0, value, 0x0088ff, Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4); // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) m.addColorScale(smoothColorScale, 29, 4); } else if (chartIndex == 1) { // Add a yellow (0xCC9922) bar from 0 to value with bar lighting effect m.addBar(0, value, 0xcc9922, Chart.barLighting()); // Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) m.addColorScale(smoothColorScale, 29, 4); // Set the title style to black text on a yellow (0xcc9922) background with rounded // corners title.setFontColor(0x000000); title.setBackground(0xcc9922); title.setRoundedCorners(2); } else if (chartIndex == 2) { // Add a grey (0xaaaaaa) bar from 0 to value with bar lighting effect m.addBar(0, value, 0xaaaaaa, Chart.barLighting()); // Add a 4-pixel high/low color scale at x = 29 (left of meter scale) m.addColorScale(highLowColorScale, 29, 4); } else if (chartIndex == 3) { // Add a brown (0xbb6622) bar from 0 to value with cylinder lighting effect m.addBar(0, value, 0xbb6622, Chart.cylinderEffect()); // Add a 4 pixel thick brown (0xbb6622) frame m.setThickFrame(4, 0xbb6622); // Add a high only color scale at x = 29 (left of meter scale) m.addColorScale(highColorScale, 29, 4); } else if (chartIndex == 4) { // Add a purple (0x7755ee) bar from 0 to value m.addBar(0, value, 0x7755ee); // Add a 4 pixel thick purple (0x880088) frame m.setThickFrame(4, 0x880088); // Add a 4-pixel high/low color scale at x = 29 (left of meter scale) m.addColorScale(highLowColorScale, 29, 4); } else { // Add a green (0x00bb00) bar from 0 to value with soft lighting effect and 4 pixel // rounded corners m.addBar(0, value, 0x00bb00, Chart.softLighting(), 4); // Add a 4-pixel step color scale at x = 29 (left of meter scale) m.addColorScale(stepColorScale, 29, 4); } // Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial // Bold font on a black (0x000000) background with depressed grey (0x333333) rounded border. TextBox t = m.addText(m.getWidth() / 2, m.getHeight() - 7, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff, Chart.BottomCenter); t.setBackground(0x000000, 0x333333, -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 blackvbarmeter(); //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); } } |