Curve Fitting Area

/***********************************************************************
 * Copyright (c) 2004, 2005 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/
package org.eclipse.birt.chart.examples.view.models;

import org.eclipse.birt.chart.model.Chart;
import org.eclipse.birt.chart.model.ChartWithAxes;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.IntersectionType;
import org.eclipse.birt.chart.model.attribute.TickStyle;
import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionImpl;
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.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.impl.ChartWithAxesImpl;
import org.eclipse.birt.chart.model.type.AreaSeries;
import org.eclipse.birt.chart.model.type.impl.AreaSeriesImpl;


public class CurveFittingArea
{
	public static final Chart createCurveFittingArea( )
	{
		ChartWithAxes cwaArea = ChartWithAxesImpl.create( );
		cwaArea.setType( "Area Chart" ); //$NON-NLS-1$
		cwaArea.setSubType( "Overlay" ); //$NON-NLS-1$
		
		// Plot/Title
		cwaArea.getBlock( ).setBackground( ColorDefinitionImpl.WHITE( ) );
		cwaArea.getPlot( ).getClientArea( ).setBackground( ColorDefinitionImpl.create( 255,
				255,
				225 ) );
		cwaArea.getTitle( ).getLabel( ).getCaption( ).setValue( "Curve Fitting Area Chart" );//$NON-NLS-1$
		cwaArea.getTitle( ).setVisible( true );

		// Legend
		cwaArea.getLegend( ).setVisible( false );

		// X-Axis
		Axis xAxisPrimary = cwaArea.getPrimaryBaseAxes( )[0];
		xAxisPrimary.setType( AxisType.TEXT_LITERAL );
		xAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.BELOW_LITERAL );
		xAxisPrimary.getOrigin( ).setType( IntersectionType.MIN_LITERAL );


		// Y-Axis
		Axis yAxisPrimary = cwaArea.getPrimaryOrthogonalAxis( xAxisPrimary );
		yAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.LEFT_LITERAL );

		// Data Set
		TextDataSet categoryValues = TextDataSetImpl.create( new String[]{
				"Jan.", "Feb.", "Mar.", "Apr", "May"} ); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$//$NON-NLS-5$	
		NumberDataSet orthoValues = NumberDataSetImpl.create( new double[]{
				14.32, -19.5, 8.38, 0.34, 9.22
		} );
		
		SampleData sd = DataFactory.eINSTANCE.createSampleData( );
		BaseSampleData sdBase = DataFactory.eINSTANCE.createBaseSampleData( );
		sdBase.setDataSetRepresentation( "" );//$NON-NLS-1$
		sd.getBaseSampleData( ).add( sdBase );

		OrthogonalSampleData sdOrthogonal = DataFactory.eINSTANCE.createOrthogonalSampleData( );
		sdOrthogonal.setDataSetRepresentation( "" );//$NON-NLS-1$
		sdOrthogonal.setSeriesDefinitionIndex( 0 );
		sd.getOrthogonalSampleData( ).add( sdOrthogonal );
		
		cwaArea.setSampleData( sd );

		// X-Series
		Series seCategory = SeriesImpl.create( );
		seCategory.setDataSet( categoryValues );

		SeriesDefinition sdX = SeriesDefinitionImpl.create( );
		sdX.getSeriesPalette( ).shift( 0 );
		xAxisPrimary.getSeriesDefinitions( ).add( sdX );
		sdX.getSeries( ).add( seCategory );

		// Y-Series
		AreaSeries as = (AreaSeries) AreaSeriesImpl.create( );
		as.setDataSet( orthoValues );
		as.getLineAttributes( ).setVisible( false );
		as.getLabel( ).setVisible( true );
		as.setTranslucent( true );
		as.setCurve( true );

		SeriesDefinition sdY = SeriesDefinitionImpl.create( );
		sdY.getSeriesPalette( ).shift( -1 );
		yAxisPrimary.getSeriesDefinitions( ).add( sdY );
		sdY.getSeries( ).add( as );

		return cwaArea;
	}

}