| Zoom capability [message #630642] |
Mon, 04 October 2010 09:25  |
Eclipse User |
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Hello,
I am evaluating BIRT charts for our application, specifically zoom functionality.
1. I wanted to know if zoom in , zoom out is possible without explicitly changing the dataset . Does BIRT handle the dataset refresh if I just change the scale or do I need to update the dataset and pass it to the chart each time I rescale?
2.And how about the dataset refresh for Drill down functionality?
3. Does the chart API have support to
a.export the chart object to PDF
b.Print the chart object
If not what options would I have for Export/Print.
Thanks in advance
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| Re: Zoom capability [message #631291 is a reply to message #631261] |
Wed, 06 October 2010 15:55  |
| Eclipse User |
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Here is a snippet to use the pdf output for the chart engine api.
Make sure you have this
org.eclipse.birt.chart.device.pdf_2.5.1.v20090625 plugin in your plugins
Jason
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import org.eclipse.birt.chart.api.ChartEngine;
import org.eclipse.birt.chart.device.EmptyUpdateNotifier;
import org.eclipse.birt.chart.device.IDeviceRenderer;
import org.eclipse.birt.chart.device.IDisplayServer;
import org.eclipse.birt.chart.factory.GeneratedChartState;
import org.eclipse.birt.chart.factory.IGenerator;
import org.eclipse.birt.chart.model.Chart;
import org.eclipse.birt.chart.model.ChartWithAxes;
import org.eclipse.birt.chart.model.attribute.ActionType;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.Bounds;
import org.eclipse.birt.chart.model.attribute.IntersectionType;
import org.eclipse.birt.chart.model.attribute.LegendItemType;
import org.eclipse.birt.chart.model.attribute.Position;
import org.eclipse.birt.chart.model.attribute.TickStyle;
import org.eclipse.birt.chart.model.attribute.TriggerCondition;
import org.eclipse.birt.chart.model.attribute.impl.BoundsImpl;
import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionI mpl;
import org.eclipse.birt.chart.model.attribute.impl.TooltipValueImpl ;
import org.eclipse.birt.chart.model.attribute.impl.URLValueImpl;
import org.eclipse.birt.chart.model.component.Axis;
import org.eclipse.birt.chart.model.component.Series;
import org.eclipse.birt.chart.model.component.impl.SeriesImpl;
import org.eclipse.birt.chart.model.data.BaseSampleData;
import org.eclipse.birt.chart.model.data.DataFactory;
import org.eclipse.birt.chart.model.data.NumberDataSet;
import org.eclipse.birt.chart.model.data.OrthogonalSampleData;
import org.eclipse.birt.chart.model.data.SampleData;
import org.eclipse.birt.chart.model.data.SeriesDefinition;
import org.eclipse.birt.chart.model.data.TextDataSet;
import org.eclipse.birt.chart.model.data.Trigger;
import org.eclipse.birt.chart.model.data.impl.ActionImpl;
import org.eclipse.birt.chart.model.data.impl.NumberDataSetImpl;
import org.eclipse.birt.chart.model.data.impl.SeriesDefinitionImpl;
import org.eclipse.birt.chart.model.data.impl.TextDataSetImpl;
import org.eclipse.birt.chart.model.data.impl.TriggerImpl;
import org.eclipse.birt.chart.model.impl.ChartWithAxesImpl;
import org.eclipse.birt.chart.model.layout.Legend;
import org.eclipse.birt.chart.model.layout.Plot;
import org.eclipse.birt.chart.model.type.BarSeries;
import org.eclipse.birt.chart.model.type.impl.BarSeriesImpl;
import org.eclipse.birt.core.framework.PlatformConfig;
//import org.eclipse.swt.dnd.Clipboard;
//import org.eclipse.swt.widgets.Display;
/**
* Test decription:
* </p>
* Chart script: BeforeDrawLegendItem()
* </p>
*/
public class StandaloneChartPDF {
private static String OUTPUT = "output/Standalone.pdf"; //$NON-NLS-1$
/**
* Comment for <code>serialVersionUID</code>
*/
private static final long serialVersionUID = 1L;
/**
* A chart model instance
*/
private Chart cm = null;
/**
* The swing rendering device
*/
private IDeviceRenderer dRenderer = null;
private IDisplayServer dServer = null;
private GeneratedChartState gcs = null;
/**
* execute application
*
* @param args
*/
public static void main(String[] args) {
new StandaloneChartPDF();
System.out.println("Finished");
}
/**
* Constructor
*/
public StandaloneChartPDF() {
PlatformConfig pf = new PlatformConfig();
pf.setBIRTHome("C:/birt/birt-runtime-2_5_1/birt-runtime-2_5_1/ReportEngine ");
ChartEngine ce = ChartEngine.instance(pf);
//Returns a singleton instance of the Generator
IGenerator gr = ce.getGenerator();
//make sure to org.eclipse.birt.chart.device.pdf_2.5.1.v20090625 in
your plugins
try {
//device renderers for dv.SWT, dv.PNG, dv.JPG
//dv.PDF, dv.SVG, dv.SWING, dv.PNG24, div.BMP
dRenderer = ce.getRenderer("dv.PDF");
dServer = dRenderer.getDisplayServer();
} catch (Exception ex) {
ex.printStackTrace();
}
cm = StandaloneChart.createStackedBar();
BufferedImage img = new BufferedImage(600, 600,
BufferedImage.TYPE_INT_ARGB);
Graphics g = img.getGraphics();
Graphics2D g2d = (Graphics2D) g;
//Look at IDeviceRenderer.java for all properties
//like DPI_RESOLUTION
//FILE_IDENTIFIER
//FORMAT_IDENTIFIER
//UPDATE_NOTIFIER
dRenderer.setProperty(IDeviceRenderer.GRAPHICS_CONTEXT, g2d);
dRenderer.setProperty(IDeviceRenderer.FILE_IDENTIFIER, OUTPUT);
//$NON-NLS-1$
//Set the bounds for the entire chart
Bounds bo = BoundsImpl.create(0, 0, 600, 600);
bo.scale(72d / dRenderer.getDisplayServer().getDpiResolution());
try {
gcs = gr.build(dServer, cm, bo, null, null, null);
//gcs.getRunTimeContext().setActionRenderer( new MyActionRenderer());
dRenderer.setProperty(IDeviceRenderer.UPDATE_NOTIFIER,
new EmptyUpdateNotifier(cm, gcs.getChartModel()));
gr.render(dRenderer, gcs);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static final Chart createStackedBar()
{
ChartWithAxes cwaBar = ChartWithAxesImpl.create();
cwaBar.setType("Bar Chart"); //$NON-NLS-1$
cwaBar.setSubType("Stacked"); //$NON-NLS-1$
// Plot
cwaBar.getBlock().setBackground(ColorDefinitionImpl.WHITE()) ;
cwaBar.getBlock().getOutline().setVisible(true);
Plot p = cwaBar.getPlot();
p.getClientArea().setBackground(ColorDefinitionImpl.create(2 55,
255,
225));
// Title
cwaBar.getTitle()
.getLabel()
.getCaption()
.setValue("Stacked Bar Chart"); //$NON-NLS-1$
// Legend
Legend lg = cwaBar.getLegend();
lg.setItemType(LegendItemType.CATEGORIES_LITERAL);
//Add Script
cwaBar
.setScript("function beforeGeneration( cm, icsc )"
+ " {importPackage(Packages.org.eclipse.birt.chart.model.attribu te); "
+ "
importPackage(Packages.org.eclipse.birt.chart.model.attribut e.impl); "
+ " cm.getLegend().getOutline( ).setStyle(
LineStyle.DASH_DOTTED_LITERAL );"
+ " cm.getLegend().getOutline( ).setColor(
ColorDefinitionImpl.GREEN() );"
+ " cm.getLegend().getOutline( ).setVisible( true );} ");
// X-Axis
Axis xAxisPrimary = cwaBar.getPrimaryBaseAxes()[0];
xAxisPrimary.setType(AxisType.TEXT_LITERAL);
xAxisPrimary.getMajorGrid().setTickStyle(TickStyle.BELOW_LIT ERAL);
xAxisPrimary.getOrigin().setType(IntersectionType.MIN_LITERA L);
// Y-Axis
Axis yAxisPrimary = cwaBar.getPrimaryOrthogonalAxis(xAxisPrimary);
yAxisPrimary.getMajorGrid().setTickStyle(TickStyle.LEFT_LITE RAL);
yAxisPrimary.setType(AxisType.LINEAR_LITERAL);
yAxisPrimary.setLabelPosition(Position.RIGHT_LITERAL);
yAxisPrimary.getLabel().getCaption().getFont().setRotation(4 5);
// Data Set
TextDataSet categoryValues = TextDataSetImpl.create(new String[] {
"Item 1a", "Item 2", "Item 3", "Item 4", "Item 5" }); //$NON-NLS-1$
//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
NumberDataSet orthoValues1 = NumberDataSetImpl.create(new double[] {
25, 35, 15, 5, 20
});
NumberDataSet orthoValues2 = NumberDataSetImpl.create(new double[] {
5, 10, 25, 10, 5
});
SampleData sd = DataFactory.eINSTANCE.createSampleData();
BaseSampleData sdBase = DataFactory.eINSTANCE.createBaseSampleData();
sdBase.setDataSetRepresentation("");//$NON-NLS-1$
sd.getBaseSampleData().add(sdBase);
OrthogonalSampleData sdOrthogonal1 = DataFactory.eINSTANCE
.createOrthogonalSampleData();
sdOrthogonal1.setDataSetRepresentation("");//$NON-NLS-1$
sdOrthogonal1.setSeriesDefinitionIndex(0);
sd.getOrthogonalSampleData().add(sdOrthogonal1);
OrthogonalSampleData sdOrthogonal2 = DataFactory.eINSTANCE
.createOrthogonalSampleData();
sdOrthogonal2.setDataSetRepresentation("");//$NON-NLS-1$
sdOrthogonal2.setSeriesDefinitionIndex(1);
sd.getOrthogonalSampleData().add(sdOrthogonal2);
cwaBar.setSampleData(sd);
// X-Series
Series seCategory = SeriesImpl.create();
seCategory.setDataSet(categoryValues);
SeriesDefinition sdX = SeriesDefinitionImpl.create();
xAxisPrimary.getSeriesDefinitions().add(sdX);
sdX.getSeries().add(seCategory);
sdX.getSeriesPalette().shift(0);
// Y-Series
BarSeries bs1 = (BarSeries) BarSeriesImpl.create();
bs1.setDataSet(orthoValues1);
bs1.setStacked(true);
bs1.getLabel().setVisible(true);
bs1.setLabelPosition(Position.INSIDE_LITERAL);
bs1.setRiserOutline(ColorDefinitionImpl.TRANSPARENT());
BarSeries bs2 = (BarSeries) BarSeriesImpl.create();
bs2.setDataSet(orthoValues2);
bs2.setStacked(true);
bs2.setRiserOutline(ColorDefinitionImpl.TRANSPARENT());
bs2.getLabel().setVisible(true);
bs2.setLabelPosition(Position.INSIDE_LITERAL);
Trigger tr1 = TriggerImpl.create(TriggerCondition.ONMOUSEOVER_LITERAL,
ActionImpl.create(ActionType.SHOW_TOOLTIP_LITERAL,
TooltipValueImpl.create(200, "test + dph.getDisplayValue()")));
Trigger tr2 = TriggerImpl.create(TriggerCondition.ONCLICK_LITERAL,
ActionImpl.create(ActionType.URL_REDIRECT_LITERAL, URLValueImpl
.create("https://www.google.com", null, "component",
"value", "")));
//Trigger tr3 =
TriggerImpl.create(TriggerCondition.ONMOUSEOVER_LITERAL,
ActionImpl.create(ActionType.SHOW_TOOLTIP_LITERAL,
TooltipValueImpl.create(200, null)));
bs1.getTriggers().add(tr1);
bs1.getTriggers().add(tr2);
SeriesDefinition sdY = SeriesDefinitionImpl.create();
sdY.getSeriesPalette().shift(0);
yAxisPrimary.getSeriesDefinitions().add(sdY);
sdY.getSeries().add(bs1);
sdY.getSeries().add(bs2);
return cwaBar;
}
}
On 10/6/2010 1:54 PM, asadanandan@axiomainc.com wrote:
> I am using just the Chart Engine API. Yes would you be able to give me
> an example? I am using it in SWT.
> Would you also have an example to export the chart to PDF using the API?
>
> Thanks
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| Re: Zoom capability [message #631445 is a reply to message #631414] |
Thu, 07 October 2010 10:23 |
| Eclipse User |
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What I did to get it to work was to copy the plugin
(org.eclipse.birt.chart.device.pdf) from the chart download
(birt-charts-2_5_1\ChartRuntime\eclipse\plugins) to the plugins folder
of my birt runtime and then added one extra lib to my build path.
birt-charts-2_5_1\DeploymentRuntime\ChartEngine\org.apache.x erces_2.9.0.v200909240008.jar
Jason
On 10/7/2010 9:40 AM, asadanandan@axiomainc.com wrote:
> Does it have any other dependencies which I need to add to my plugins
> folder?
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