ChartDirector 7.0 (Java Edition)

Vertical Bar Meter




This example demonstrates the basic steps in creating a vertical bar meter.

A vertical bar meter can be created using the following steps:

Source Code Listing

[JSP Version] jspdemo/vbarmeter.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The value to display on the meter double value = 66.77; // Create an LinearMeter object of size 70 x 240 pixels with a very light grey (0xeeeeee) // background, and a rounded 3-pixel thick light grey (0xbbbbbb) border LinearMeter m = new LinearMeter(70, 240, 0xeeeeee, 0xbbbbbb); m.setRoundedFrame(Chart.Transparent); m.setThickFrame(3); // Set the scale region top-left corner at (28, 18), with size of 20 x 205 pixels. The scale labels // are located on the left (default - implies vertical meter). m.setMeter(28, 18, 20, 205); // Set meter scale from 0 - 100, with a tick every 10 units m.setScale(0, 100, 10); // Add a 5-pixel thick smooth color scale to the meter at x = 54 (right of meter scale) double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xffff00, 100, 0xff0000}; m.addColorScale(smoothColorScale, 54, 5); // Add a light blue (0x0088ff) bar from 0 to the data value with glass effect and 4 pixel rounded // corners m.addBar(0, value, 0x0088ff, Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4); // Output the chart WebChartViewer viewer = new WebChartViewer(request, "chart1"); viewer.setChart(m, Chart.SVG); %> <!DOCTYPE html> <html> <head> <title>Vertical Bar Meter</title> <!-- Include ChartDirector Javascript Library to support chart interactions --> <script type="text/javascript" src="cdjcv.js"></script> </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> Vertical Bar Meter </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a> </div> <!-- ****** Here is the chart image ****** --> <%= viewer.renderHTML(response) %> </body> </html>