/* ===========================================================
* AFreeChart : a free chart library for Android(tm) platform.
* (based on JFreeChart and JCommon)
* ===========================================================
*
* (C) Copyright 2010, by ICOMSYSTECH Co.,Ltd.
* (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
*
* Project Info:
* AFreeChart: http://code.google.com/p/afreechart/
* JFreeChart: http://www.jfree.org/jfreechart/index.html
* JCommon : http://www.jfree.org/jcommon/index.html
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* [Android is a trademark of Google Inc.]
*
* -----------------
* BarChartDemo01View.java
* -----------------
* (C) Copyright 2010, 2011, by ICOMSYSTECH Co.,Ltd.
*
* Original Author: Niwano Masayoshi (for ICOMSYSTECH Co.,Ltd);
* Contributor(s): -;
*
* Changes
* -------
* 19-Nov-2010 : Version 0.0.1 (NM);
*/
package com.example.chart;
import org.afree.chart.ChartFactory;
import org.afree.chart.AFreeChart;
import org.afree.chart.axis.CategoryAxis;
import org.afree.chart.axis.CategoryLabelPositions;
import org.afree.chart.axis.NumberAxis;
import org.afree.chart.plot.CategoryPlot;
import org.afree.chart.plot.PlotOrientation;
import org.afree.chart.renderer.category.BarRenderer;
import org.afree.data.category.CategoryDataset;
import org.afree.data.category.DefaultCategoryDataset;
import org.afree.graphics.GradientColor;
import org.afree.graphics.SolidColor;
import android.content.Context;
import android.graphics.Color;
/**
* BarChartDemo01View
*/
public class mybarchart extends DemoView {
/**
* constructor
* @param context
*/
public mybarchart(Context context) {
super(context);
CategoryDataset dataset = createDataset();
AFreeChart chart = createChart(dataset);
setChart(chart);
}
/**
* Returns a sample dataset.
*
* @return The dataset.
*/
private static CategoryDataset createDataset() {
// row keys...
String series1 = "First";
String series2 = "Second";
String series3 = "Third";
// column keys...
String category1 = "Category 1";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
String category5 = "Category 5";
// create the dataset...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, series1, category1);
dataset.addValue(4.0, series1, category2);
dataset.addValue(3.0, series1, category3);
dataset.addValue(5.0, series1, category4);
dataset.addValue(5.0, series1, category5);
dataset.addValue(5.0, series2, category1);
dataset.addValue(7.0, series2, category2);
dataset.addValue(6.0, series2, category3);
dataset.addValue(8.0, series2, category4);
dataset.addValue(4.0, series2, category5);
dataset.addValue(4.0, series3, category1);
dataset.addValue(3.0, series3, category2);
dataset.addValue(2.0, series3, category3);
dataset.addValue(3.0, series3, category4);
dataset.addValue(6.0, series3, category5);
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static AFreeChart createChart(CategoryDataset dataset) {
// create the chart...
AFreeChart chart = ChartFactory.createBarChart(
"Bar Chart Demo 01", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips?
false // URLs?
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// set the background color for the chart...
chart.setBackgroundPaintType(new SolidColor(Color.WHITE));
// get a reference to the plot for further customisation...
CategoryPlot plot = (CategoryPlot) chart.getPlot();
// set the range axis to display integers only...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// disable bar outlines...
BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(false);
// set up gradient paints for series...
GradientColor gp0 = new GradientColor(Color.BLUE, Color.rgb(0, 0, 64));
GradientColor gp1 = new GradientColor(Color.GREEN, Color.rgb(0, 64, 0));
GradientColor gp2 = new GradientColor(Color.RED, Color.rgb(64, 0, 0));
renderer.setSeriesPaintType(0, gp0);
renderer.setSeriesPaintType(1, gp1);
renderer.setSeriesPaintType(2, gp2);
CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(
Math.PI / 6.0));
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
}
