<?xml version="1.0" encoding="UTF-8"?>



<window apply="demo.bar.ColumnNegativeComposer">
	<charts id="chart" type="column" title="Average temperature, 2021"/>
</window>

package demo.bar;

import org.zkoss.chart.Charts;
import org.zkoss.chart.Series;
import org.zkoss.chart.model.CategoryModel;
import org.zkoss.chart.model.DefaultCategoryModel;
import org.zkoss.zk.ui.select.SelectorComposer;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.Window;


public class ColumnNegativeComposer extends SelectorComposer<Window> {

	@Wire
	Charts chart;
	
	public void doAfterCompose(Window comp) throws Exception {
		super.doAfterCompose(comp);
		chart.getXAxis().setCategories("January", "February", "March", "April", "May", "June",
				"July", "August", "September", "October", "November", "December");
		chart.getYAxis().setTitle("Temperature °C");

		chart.getCredits().setEnabled(false);

		Series series0 = chart.getSeries(0);
		series0.setName("Oslo");
		series0.setData(-5.0, -3.6, 3.3, 5.8, 10.6, 17.3, 20.0, 16.5, 13.4, 9.1, 2.9, -3.1);

		Series series1 = chart.getSeries(1);
		series1.setName("Svalbard");
		series1.setData(-8.5, -7.8, -10.8, -6.8, -4.0, 3.7, 6.7, 6.4, 3.5, -3.7,
				-10.6, -7.7);

		Series series2 = chart.getSeries(2);
		series2.setName("Trondheim");
		series2.setData(-6.2, -4.6, 1.7, 2.3, 8.1, 13.2, 16.3, 12.1, 9.9, 7.0, 0.5, -2.9);
	}
}