Cluster Bar Chart
"Rew, Robert L" <[email protected]> Mon, 17 Jul 2006 11:32:36 -0500
| Newsgroups | gmane.comp.krysalis.jcharts.user |
|---|---|
| Message-ID | <4F5CA8D7D1561B45A128D35DB86BA8F8093632EE@IOWAEVS03.iowa.uiowa.edu> |
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Are there any problems with moving to JDK 1.5 and Tomcat 5.5 using
jCharts? =20
=20
I had a clustered bar chart working with jdk 1.4 and Tomcat 4.1.30. As
soon as we upgraded to the above, no chart displays at all, yet there
are no errors indicated in my application log file nor the Tomcat log
files.
I had made no code modifications.
=20
I know the encoders indicate that you must have jdk 1.4, but I assumed
that meant at least jdk 1.4.
=20
My code looks as follows:
=20
String xAxisTitle =3D "Grades";
String yAxisTitle =3D "Percent";
String title =3D "Grade Distribution";
DataSeries dataSeries =3D new DataSeries( xAxisLabels, xAxisTitle,
yAxisTitle, title );
=20
String[] legendLabels =3D { "Section", "Course", "Department" };
Paint[] paints =3D new Paint[]{ Color.yellow, Color.green, Color.blue };
ClusteredBarChartProperties clusteredBarChartProperties =3D new
ClusteredBarChartProperties();
clusteredBarChartProperties.setWidthPercentage( 0.7f );
clusteredBarChartProperties.setShowOutlinesFlag(true);
=20
AxisChartDataSet axisChartDataSet =3D new AxisChartDataSet( data,
legendLabels, paints, ChartType.BAR_CLUSTERED,
clusteredBarChartProperties );
dataSeries.addIAxisPlotDataSet( axisChartDataSet );
=20
ChartProperties chartProperties =3D new ChartProperties();
AxisProperties axisProperties =3D new AxisProperties();
LegendProperties legendProperties =3D new LegendProperties();
AxisChart axisChart =3D new AxisChart( dataSeries, chartProperties,
axisProperties, legendProperties, 1000, 500 );
=20
AxisChart axisChart =3D
(AxisChart)request.getSession().getAttribute("gradeBarGraph");
JPEGEncoder.encode(axisChart, 1.0f, response.getOutputStream());
=20
=20
=20
Any suggestions?
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<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Are there any problems with moving to JDK 1.5 and =
Tomcat 5.5
using jCharts? </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I had a clustered bar chart working with jdk 1.4 and =
Tomcat
4.1.30. As soon as we upgraded to the above, no chart displays at =
all,
yet there are no errors indicated in my application log file nor the =
Tomcat log
files.</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I had made no code modifications.</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I know the encoders indicate that you must have jdk =
1.4, but
I assumed that meant at least jdk 1.4.</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>My code looks as follows:</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>String xAxisTitle =3D =
"Grades";</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>String yAxisTitle =3D =
"Percent";</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>String title =3D "Grade =
Distribution";</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>DataSeries dataSeries =3D new DataSeries( =
xAxisLabels,
xAxisTitle, yAxisTitle, title );</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>String[] legendLabels =3D { "Section",
"Course", "Department" };</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Paint[] paints =3D new Paint[]{ Color.yellow, =
Color.green,
Color.blue };</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ClusteredBarChartProperties =
clusteredBarChartProperties =3D
new ClusteredBarChartProperties();</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>clusteredBarChartProperties.setWidthPercentage( 0.7f =
);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>clusteredBarChartProperties.setShowOutlinesFlag(true);=
</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>AxisChartDataSet axisChartDataSet =3D new =
AxisChartDataSet(
data, legendLabels, paints, ChartType.BAR_CLUSTERED,
clusteredBarChartProperties );</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>dataSeries.addIAxisPlotDataSet( axisChartDataSet =
);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ChartProperties chartProperties =3D new =
ChartProperties();</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>AxisProperties axisProperties =3D new =
AxisProperties();</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>LegendProperties legendProperties =3D new =
LegendProperties();</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>AxisChart axisChart =3D new AxisChart( dataSeries,
chartProperties, axisProperties, legendProperties, 1000, 500 =
);</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>AxisChart axisChart =3D
(AxisChart)request.getSession().getAttribute("gradeBarGraph");<=
/span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>JPEGEncoder.encode(axisChart, 1.0f,
response.getOutputStream());</span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Any suggestions?</span></font></p>
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