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Re: [jCharts-users] Problem in generating combined charts.
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From: Nathaniel G. A. <nat...@ya...> - 2004-03-21 21:42:20
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Dual axis are not officially supported; there is a patch on the sourceforge site which allows for
a limited dual axis functionality.
--- "Raketla, Gandhi (IE10)" <Rak...@ho...> wrote:
> Hi,
> I want to generate a combined chart. My chart should plot both bar and
> line graph for same domain Axis and also it should have dual Axis.Iam
> attaching the sample graph that i need to generate. Your help will be
> appreciated greatly.
> <<chart.gif>>
>
> Thanks and Regards
> Gandhi,Raketla
> Software Engineer
> Digital Enterprise Solutions
> Honeywell
> > Honeywell Technology Solutions Lab
> > 151/1 Doraisanipalya, Bannerghatta Road,
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>
> > -----Original Message-----
> > From: Nathaniel G. Auvil [SMTP:nat...@ya...]
> > Sent: Tuesday, August 26, 2003 8:23 PM
> > To: jch...@li...
> > Subject: RE: [jCharts-users] Problems in Barchart and Line Chart
> >
> >
> > yes, I also added that code to the 'Patches' section of the jcharts
> > sourceforge site.
> >
> >
> > --- Vikram Rajan <Vi...@PL...> wrote:
> > > Pal,
> > >
> > >
> > > w.r.t. to the axis labels, there is a length allocated to each label and
> > > jCharts calculates whether all labels can be fitted into the charts. If
> > not,
> > > the labels are displayed selectively - alternate labels may be
> > displayed, or
> > > every third label may be displayed, or every fourth ... depending on the
> > > size of the label. The size of the label is a function of the font size,
> > > font and the number of characters in the label string.
> > >
> > > There is a code submission in the developer's list which will help you
> > get
> > > around the label problem by truncating labels and appending a "..." to
> > them.
> > > It will also let you image map the label text so that when the user does
> > a
> > > mouse over on the label, the complete string will be displayed.
> > >
> > > hope this helps,
> > > Vikram
> > >
> > > -----Original Message-----
> > > From: Pal Perinbam [mailto:pal...@ya...]
> > > Sent: Tuesday, August 26, 2003 7:07 PM
> > > To: jch...@li...
> > > Subject: [jCharts-users] Problems in Barchart and Line Chart
> > >
> > >
> > >
> > > Hi,
> > >
> > > As I told you earlier, I herewith send the code sample.
> > >
> > > Please run this by setting font size in the code.
> > >
> > >
> > > We are using Jcharts to generate charts for our project. We have a
> > problem
> > > while printing the charts. The charts are fine on the
> > >
> > > screen but when we print that it looks blurred. We suspect it may be due
> > to
> > > the Jpeg encoding. We encode the chart object into jpeg image
> > >
> > > using the Jpegencoder13 provided with jcharts. Is there a way to create
> > BMP
> > > or any other high quality image from jcharts, or can we improve
> > >
> > > image quality by some other means.
> > >
> > > We also face another problem. When we increase the X Axis label font
> > size
> > > of a line chart or bar chart, most of the Xaxis labels
> > >
> > > disappear. I've attached a sample to simulate this. In the below Sample.
> > the
> > > chart is fine when the font size is 10, but when it is changed to 11
> > >
> > > the labels disappear.
> > >
> > > Expecting your earliest reply.
> > >
> > > import org.jCharts.properties.LegendProperties;
> > > import org.jCharts.properties.ChartProperties;
> > > import org.jCharts.properties.util.ChartStroke;
> > > import org.jCharts.properties.util.ChartFont;
> > > import org.jCharts.properties.BarChartProperties;
> > > import org.jCharts.properties.AxisProperties;
> > > import org.jCharts.properties.DataAxisProperties;
> > > import org.jCharts.chartData.AxisChartDataSet;
> > > import org.jCharts.chartData.interfaces.IAxisDataSeries;
> > > import org.jCharts.chartData.DataSeries;
> > > import org.jCharts.axisChart.AxisChart;
> > > import org.jCharts.types.ChartType;
> > > import org.jCharts.encoders.JPEGEncoder13;
> > > import java.awt.Color;
> > > import java.awt.Paint;
> > > import java.awt.Font;
> > > import java.awt.BasicStroke;
> > > import java.io.FileOutputStream;
> > >
> > > class createBarChart
> > > {
> > > public static void main(String[] args)
> > > {
> > > try {
> > > int fontSize=10; //Font Size
> > > int width = 300;
> > > int height = 200;
> > >
> > >
> > > LegendProperties legendProperties=null;
> > > ChartProperties chartProperties = new ChartProperties();
> > > AxisProperties axisProperties = new AxisProperties( false );
> > > FileOutputStream objFOS = new FileOutputStream("mychart.jpg");
> > >
> > > ChartFont axisScaleFont = new ChartFont( new Font( "Arial",
> > > Font.PLAIN,fontSize), Color.black );
> > > ChartStroke CSAxis = new ChartStroke(new
> > BasicStroke(1.0f),Color.black);
> > >
> > > axisProperties.getXAxisProperties().setScaleChartFont(axisScaleFont);
> > > axisProperties.getXAxisProperties().setShowEndBorder(false);
> > > axisProperties.getXAxisProperties().setPaddingBetweenXAxisLabels(0f);
> > > axisProperties.getXAxisProperties().setAxisStroke(CSAxis);
> > >
> > >
> > axisProperties.getXAxisProperties().setShowGridLines(DataAxisProperties.GR
> > ID
> > > _LINES_NONE);
> > > axisProperties.getYAxisProperties().setScaleChartFont(axisScaleFont);
> > > axisProperties.getYAxisProperties().setShowEndBorder(false);
> > > axisProperties.getYAxisProperties().setAxisStroke(CSAxis);
> > >
> > >
> > axisProperties.getYAxisProperties().setShowGridLines(DataAxisProperties.GR
> > ID
> > > _LINES_NONE);
> > >
> > > String title=null;
> > > String[] legendLabels = {" "};
> > > Paint[] paints = new Paint[]{Color.blue};
> > > double[][] data = new double[][]{{2.4305638 , 76.2283304 , 59.5653992
> >
> > >
> > > , 12.9185693 , -94.4018601 , 41.8006188 , 45.009868 ,
> > >
> > > -63.0464611 , 0.4272433 , 17.0886599 , 48.8614666 , 89.5960671
> > >
> > > , 44.107602 , 1.8919965 , -22.7345809 , 97.4517988 ,
> > >
> > > 95.248644 , 58.0654687 , 82.1011746 , 36.7686102 , 25.6530842
> > >
> > > , 60.0724961 , -93.1170484 , 23.6652036 , 37.0968087 ,
> > >
> > > 48.8910213 , 79.85264 , 53.9105076, 95.248644 , 58.0654687 ,
> > >
> > > 82.1011746 , 36.7686102 , 59.5653992 , 12.9185693 , -94.4018601 ,
> > >
> > > 41.8006188, 0.4272433 , 17.0886599 , 48.8614666 , 89.5960671}};
> > > String[] xAxisLabels = {"93"," "," "," ","94"," "," "," ","95"," ","
> > ","
> > > ","96"," "," "," ","97"," "," "," ","98"," "," "," ","99","
> > >
> > > "," "," ","00"," "," "," ","01"," "," "," ","02"," "," "," "};
> > >
> > > DataAxisProperties dataAxisProperties = (DataAxisProperties)
> > > axisProperties.getYAxisProperties();
> > > dataAxisProperties.setUserDefinedScale(-100,50);
> > > dataAxisProperties.setNumItems(5);
> > > dataAxisProperties.setShowZeroLine(true);
> > >
> > > BarChartProperties barChartProperties = new BarChartProperties();
> > > barChartProperties.setShowOutlinesFlag(false);
> > > String xAxisTitle = null;
> > > String yAxisTitle = null;
> > > IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle,
> > > yAxisTitle, title );
> > > dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data,
> > legendLabels,
> > > paints, ChartType.BAR,
> > >
> > > barChartProperties ) );
> > > AxisChart axisChart = new AxisChart( dataSeries, chartProperties,
> > > axisProperties, legendProperties, width,
> > >
> > > height );
> > >
> > > JPEGEncoder13.encode( axisChart, 1.0f, objFOS );
> > > }
> > > catch( Exception exp )
> > > {
> > > exp.printStackTrace();
> > > }
> > > }
> > > }
> > >
> > >
> > > Thanks,
> > > Pal
> > >
> > >
> > >
> > >
> > >
> > > _____
> > >
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> > >
> >
> >
> > =====
> > http://nathaniel-auvil.blog-city.com/
> >
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>
> ATTACHMENT part 2 image/gif name=chart.gif
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