<%@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 = 74.25;
// The background and border colors of the meters
int[] bgColor = {0xbbddff, 0xccffcc, 0xffccff, 0xffffaa, 0xffdddd, 0xeeeeee};
int[] borderColor = {0x000088, 0x006600, 0x6600aa, 0xee6600, 0x880000, 0x666666};
// Create a LinearMeter object of size 70 x 260 pixels with a 3-pixel thick rounded frame
LinearMeter m = new LinearMeter(70, 260, bgColor[chartIndex], borderColor[chartIndex]);
m.setRoundedFrame(Chart.Transparent);
m.setThickFrame(3);
// Set the scale region top-left corner at (28, 30), with size of 20 x 200 pixels. The scale
// labels are located on the left (default - implies vertical meter)
m.setMeter(28, 30, 20, 200);
// Set meter scale from 0 - 100, with a tick every 10 units
m.setScale(0, 100, 10);
// Demostrate different types of color scales and putting them at different positions
double[] smoothColorScale = {0, 0x6666ff, 25, 0x00bbbb, 50, 0x00ff00, 75, 0xffff00, 100,
0xff0000};
double[] stepColorScale = {0, 0x33ff33, 50, 0xffff33, 80, 0xff3333, 100};
double[] highLowColorScale = {0, 0x6666ff, 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 step color scale at the default position
m.addColorScale(stepColorScale);
} 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 x = 28 (left of scale) with zero width and ending
// at x = 28 with 20 pixels width
m.addColorScale(smoothColorScale, 28, 0, 28, 20);
} else if (chartIndex == 4) {
// Add the smooth color scale starting at x = 38 (center of scale) with zero width and
// ending at x = 28 with 20 pixels width
m.addColorScale(smoothColorScale, 38, 0, 28, 20);
} else {
// Add the smooth color scale starting at x = 48 (right of scale) with zero width and ending
// at x = 28 with 20 pixels width
m.addColorScale(smoothColorScale, 48, 0, 28, 20);
}
// Add a blue (0x0000cc) pointer at the specified value
m.addPointer(value, 0x0000cc);
// Add a title using white (0xffffff) 8pt Arial Bold font with a border color background
m.addTitle("Temp C", "Arial Bold", 8, 0xffffff).setBackground(borderColor[chartIndex]);
// Add a bottom title using white (0xffffff) 8pt Arial Bold font with a border color background
// to display the value
m.addTitle2(Chart.Bottom, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff).setBackground(
borderColor[chartIndex]);
// 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 Vertical 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> |