<%@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 = 72.55;
// The background and border colors of the meters
int[] bgColor = {0x88ccff, 0xffdddd, 0xffddaa, 0xffccff, 0xdddddd, 0xccffcc};
int[] borderColor = {0x000077, 0x880000, 0xee6600, 0x440088, 0x000000, 0x006000};
// Create an AngularMeter object of size 300 x 180 pixels with transparent background
AngularMeter m = new AngularMeter(300, 180, Chart.Transparent);
// Center at (150, 150), scale radius = 124 pixels, scale angle -90 to +90 degrees
m.setMeter(150, 150, 124, -90, 90);
// Background gradient color with brighter color at the center
double[] bgGradient = {0, m.adjustBrightness(bgColor[chartIndex], 3), 0.75, bgColor[chartIndex]}
;
// Add a scale background of 148 pixels radius using the background gradient, with a 13 pixel
// thick border
m.addScaleBackground(148, m.relativeRadialGradient(bgGradient), 13, borderColor[chartIndex]);
// Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and micro
// tick every 5 units
m.setScale(0, 100, 20, 10, 5);
// Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to
// 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels.
m.setLabelStyle("Arial Italic", 16);
m.setTickLength(-16, -16, -10);
m.setLineWidth(0, 2, 1, 1);
// Demostrate different types of color scales and putting them at different positions
double[] smoothColorScale = {0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
double[] stepColorScale = {0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100};
double[] highLowColorScale = {0, 0x00ff00, 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 radius 124 with zero width and ending at radius
// 124 with 16 pixels inner width
m.addColorScale(smoothColorScale, 124, 0, 124, -16);
} else if (chartIndex == 2) {
// Add the smooth color scale starting at radius 65 with zero width and ending at radius 55
// with 20 pixels outer width
m.addColorScale(smoothColorScale, 65, 0, 55, 20);
} else if (chartIndex == 3) {
// Add the high/low color scale at the default position
m.addColorScale(highLowColorScale);
} else if (chartIndex == 4) {
// Add the step color scale at the default position
m.addColorScale(stepColorScale);
} else {
// Add the smooth color scale at radius 55 with 20 pixels outer width
m.addColorScale(smoothColorScale, 55, 20);
}
// Add a text label centered at (150, 125) with 15pt Arial Italic font
m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter);
// Demonstrate two different types of pointers - thin triangular pointer (the default) and line
// pointer
if (chartIndex % 2 == 0) {
m.addPointer2(value, 0xff0000);
} else {
m.addPointer2(value, 0xff0000, -1, Chart.LinePointer2);
}
// 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">
Color Semicircle 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> |