setXAxisValueFormatter in Column FacetChart

[felipe.silveira]

Version v9.1p_2014-07-03/Pro Deployment (2014-07-03)

Is the method setXAxisValueFormatter supposed to work on FacetChart when Column type is chosen?
It's not working for me and I'm trying to find a way of hiding the labels because they are big strings.

If it is intended not to work I'd appreciate to know if there is a workaround.

Thanks in advance!

[Isomorphic]

Yes, it should work for Column charts. We would need runnable test code to investigate the issue you're seeing.

[felipe.silveira]

Ok, here it is:

package br.com.dti.testesmartgwt.client;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.data.Record;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ChartType;
import com.smartgwt.client.widgets.chart.FacetChart;
import com.smartgwt.client.widgets.chart.ValueFormatter;
import com.smartgwt.client.widgets.cube.Facet;
import com.smartgwt.client.widgets.layout.VLayout;

public class TesteSmartGWTEntryPoint implements EntryPoint 
{
	private VLayout rootLayout;
	
	@Override
	public void onModuleLoad()
	{
		try
		{
			rootLayout = new VLayout();
			rootLayout.setWidth("98,5%");
			rootLayout.setHeight("97%");
			RootPanel.get().add(rootLayout);
			buildLayout();
		}
		catch (Exception e)
		{
		}
	}

	private void buildLayout()
	{
		HashMap<String, Integer> map = new LinkedHashMap<String, Integer>();
		map.put("String 1", 3);
		map.put("String 2", 4);
		map.put("String 3", 5);
		
		FacetChart chart = new FacetChart();
		chart.setFacets(new Facet("currentAttribute", "Attribute"));
		chart.setValueProperty("number");
		chart.setChartType(ChartType.COLUMN);
		chart.setTitle("Column Chart");
		chart.setHeight100();
		chart.setWidth100();
		chart.setAlign(Alignment.CENTER);
		chart.setShowDataValues(true);
        
		List<ColumnChartRecord> recordList = new ArrayList<ColumnChartRecord>();
		for (Map.Entry<String, Integer> cEstruturaComparacao : map.entrySet())
			recordList.add(new ColumnChartRecord(cEstruturaComparacao.getKey(), cEstruturaComparacao.getValue()));
		chart.setData(recordList.toArray(new ColumnChartRecord[] {}));
		chart.setXAxisValueFormatter(new ValueFormatter()
        {
			@Override
			public String format(Object value)
			{
				return " ";
			}
		});
		rootLayout.addMembers(chart);
	}
	
	public class ColumnChartRecord extends Record 
	{
		protected ColumnChartRecord()
		{
			
		}
		
		public ColumnChartRecord(String name, Integer value)
		{
			setAttribute("currentAttribute", name);
			setAttribute("number", value);
		}
	}
}

[Isomorphic]

Please try with the latest patched build. If you're still having an issue, please post a screenshot so it's clear what the issue is.

[felipe.silveira]

I've just tried the latest patch (Version v9.1p_2014-09-02/Pro Deployment (2014-09-02)) and still got the problem.

In the screenshot attached there is the chart produced by the code above. The X-axis labels (circled in yellow) should have been disappeared due to the formatter, but they didn't.

[Isomorphic]

Ah, the formatter API is called only when an axis is actually showing data values, to allow numeric/currency/time and similar formatting. Your X axis is showing facetValue titles which are already strings, so to modify them, just change the facetValue titles that you apply to the chart.

[felipe.silveira]

Ok, but my intention was to hide the labels and then show a legend separated from the chart.

I'll talk to my customer and we will try to reduce the strings length.